Alstom Micom P441-p442 3r461x

MiCOM P441 P442 Distance Protection Relays

MiCOM P441 and P442 Distance Protection Relays

T&D Protection & Control

MiCOM P441 and P442 Full Scheme Distance Protection Relays

Introduction MiCOM Distance Protection Relays provide flexible and reliable integration of protection, control, monitoring and measurement functions. Extensive functionality provides complete protection and control for a wide range of overhead lines and underground cables from distribution to transmission voltage levels.

Models Available • P441 Distance Protection Relay, three phase tripping logic and threepole autorecloser, 8 opto inputs, 14 output relays with option for synchronism check. • P442 Distance Protection Relay, single and three-phase tripping logic and one and three-pole autorecloser. This version has 16 opto-inputs and 21 output relays. In addition to the synchronism check option, IRIG-B time synchronisation is available as is a fibre optic interface for rear port IEC60870-5-103 communication option.

Distance Protection • • • • •

Dual distance protection algorithms Typical operating time 1.25 cycles Five independent zones of protection Zone 1 extension scheme Independent quadrilateral characteristics for phase-to-phase and phase-to-earth faults • Range of pre-programmed channel aided schemes and -definable channel aided scheme logic • Weak infeed and echo logic • Loss of load protection

• Current reversal guard protection and parallel line compensation • Power swing blocking • Switch-On-To-Fault and zoneselectable Trip-On-Reclose protection

Monitoring

Other Protection Functions

Communications

• Directional/non-directional phase overcurrent • Stub bus protection • Emergency overcurrent on VT failure • Directional/non-directional earth fault • Channel-aided directional earth fault • Directional/non-directional negative sequence overcurrent • Under/overvoltage • Broken conductor • Circuit breaker failure • Voltage transformer supervision • Current transformer supervision

Control • Four shot autoreclose (1 and/or 3-pole) with or without synchronism check • Circuit breaker control • Programmable scheme logic • Programmable inputs and outputs • Four setting groups

Measurements • Comprehensive range of measurement values including instantaneous and derived values.

Post Fault Analysis • Fault location • Event and fault records • Disturbance records

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• Trip circuit monitoring • Breaker state monitoring • Breaker condition monitoring

• A choice of protocols • Front and rear communication ports

Diagnostics • Power-up diagnostics • Continuous self monitoring • Test facilities

Friendly Interface • • • •

Liquid crystal display with backlight Programmable LED indications protection Optional secondary front cover

Software In conjunction with MiCOM S1, provided separately: • Settings editor • Programmable scheme logic editor • Viewing of fault diagnostics and measurements • Disturbance recorder viewer

Application MiCOM P441 and P442 Numerical Distance Relays provide comprehensive distance protection for the following applications: lines, cables, tapped lines, lines with multiple zero sequence sources, non-homogeneous lines, series compensated lines and parallel lines. The resistive reach coverage allows application to short lines and cable protection. It provides complete protection of solidly earthed systems from distribution to transmission voltage levels.

Using well-proven, patented techniques to directionalise, and making full use of digital memory, the relays can be applied in situations that can cause classic distance implementations to maloperate (cross-country faults, close-up faults, etc.). The MiCOM P441 and P442 are complete with a library of scheme logic applications as well as programmable scheme logic, metering, logging, oscillography and advanced communication abilities. Many back up functions are also selectively available. Windows-based software tools are provided to ease setting, view data from the relays, and analyse faults. A range of communication protocols allows connection with many external devices thus providing remote programming, control and extraction of information. Figure 1 is a single line diagram giving the protection functions of the MiCOM P441 and P442 relays. For clarity, current related functions are shown in red circles, voltage related functions in green squares, current/voltage related functions in brown octagons.

Benefits of Use MiCOM relays offer fast, secure clearing for any type of fault. The unique distance and directionalising implementations provide an optimum mix of speed, selectivity and security for difficult fault types and application situations. In addition, the P441 and P442 offer the following benefits: • Standardised relay selection for all applications. • Simplified spares holding with dual rated CT inputs. • No need for additional equipment (voltage protection, current protection, autorecloser, synchronism check, disturbance recorder, measurement devices). • Simple system integration through a choice of protocols. • Faster fault diagnosis with fault information, disturbance and event records. • Maximise protection availability through extensive self-monitoring and self-test, system supervision (CT, VT, trip circuit monitoring)

3Y 3Y

MiCOM P441/ P442 46 BC

46

50 BF

50

85 50 / 51

51 FF

VTS/ CTS

21P

78

59 67

50 / 27

21G

67N

50N/ 51N

27

1 25 / 79

21G

21P

85 50

Ground distance protection, 3 forward elements, 1 reverse element,1 selectable element, quadrilateral zones Phase distance protection, 3 forward elements,1 reverse element,1 selectable element, quadrilateral zones Channel-aided protection Phase overcurrent,High set,for Stub bus application

Negative sequence overcurrent Switch onto fault and trip on reclose 50/51 Phase overcurrent, DT or IDMT 50/51N Ground over current, DT or IDMT 51FF Fuse failure overcurrent 67 Phase directional overcurrent 67N DEF , communication aided 78 Power swing detection,used to selectively permit or block tripping 67/46 50/27

VTS CTS 50BF 46BC 25 79 59 27

Voltage transformer supervision Current transformer supervision Breaker failure and backtrip Broken conductor detection Check synchroniser Autorecloser Overvoltage Undervoltage

Figure 1: Protection line diagram

• Enhanced reliability for all faults through two different measurement techniques. The software tools contained in S1 allow intuitive interface to the relay, and greatly lessen training and documentation commitment. The post fault analysis capabilities allow Operations personnel to make informed decisions about relay and system operation.

Distance Protection Functions Three phase tripping with faulted phase indication is provided for all protection functions. In addition model P442 allows singlephase tripping for the distance protection and the channel-aided DEF protection. Dual distance protection algorithms The operation of the MiCOM relays is based on the combined use of two types of fault detection: • Calculation of the superimposed current and voltage values that are characteristic of the fault ("Delta" algorithms). • Measurement of impedance values ("Conventional" algorithms). This dual algorithm principle offers dependable detection of all types of faults occurring on the network. Proven quadrilateral distance characteristics issue the trip command to clear any fault. 3

The impedance calculations are performed on each waveform sample for all six loops AN, BN, AB, BC and CA making this a true full scheme numerical distance relay. Delta algorithms The Delta algorithms are based on transient components. This is a patented technique with 10 years experience in various relays. The current and voltage values are continuously predicted, based on the last two cycles, and the predicted values are compared with the values actually measured. A fault is detected if the predicted and measured values are different (∆I and ∆V). Faulted phase selection is made by comparing the superimposed currents for each phase. The directional elements use the faultgenerated changes in the voltage and current signals at the relay location, referred to as the superimposed signals, to determine the direction of a fault. During a fault the voltage signal changes by ∆V and the current signal changes by ∆I.

If (i) Faulted

F

Vf

If

Vp

Ip

VP

Vp

I ZS

Current:–

Vf

Ip (ii) Unfaulted (predicted)

Voltage:– F

F

V

I

V t=0

t=0

t=0

(iii) Superimposed

Figure 2: Relationship between the superimposed and the faulted power system

Figure 2 illustrates that the faulted power system can be considered to consist of two parts: the unfaulted system and the superimposed system. The superimposed system defines the changes caused by the fault. The directional elements process the signals ∆V and ∆I obtained from the superimposed system (see Figure 2(iii)) and calculate the sign of the superimposed energy: • for a forward fault ∆V and ∆I are of opposite polarity (sign of energy: negative) and • for a reverse fault ∆V and ∆I are of the same polarity (sign of energy: positive). The directional and phase selection elements will change their decision if required, for example during evolving or cross-country faults. Conventional algorithms Conventional algorithms in the relays use impedance measurement criteria with quadrilateral-shaped characteristics. This algorithm is used for the time-delayed zones when the superimposed delta quantities have disappeared. Phase selection is enhanced for high current faults by utilising current phase selection. If the fault current is low, impedance phase selection is used. A fault is detected when the impedance crosses the starting characteristic (see Figure 3). Both algorithms independently monitor the system, measuring the impedance loops and calculating delta values

continuously. On fault inception, the tripping logic criteria are started to provide secure, fast tripping. Distance to fault The distance to the fault is measured by discriminating between the voltage drop on the line and that caused by the fault. This removes the error due to the fault resistance irrespective of the load current. A least squares method is used to get the algorithms to converge rapidly. Quadrilateral characteristics Two independently settable impedance characteristics (for earth faults and phase faults) provide five zones of protection each as shown in Figure 4. They are: • Zone 1 forward directional instantaneous or time-delayed trip zone and Zone 1X forward directional used in Zone 1 extension schemes with autoreclosure, or as a time-delayed trip zone. Zone 1X can be enabled

when the channel associated with an aided scheme has failed. • Zone 2 forward directional time-delayed trip zone. • Zone P forward or reverse “programmable” directional time delayed trip zone. • Zone 3 forward directional time delayed trip zone. • Zone 4 reverse directional time delayed trip zone. Four independent earth fault residual compensation coefficients are provided for non-homogeneous line protection, or the back-up protection of transformers. Power swing blocking Power swing is detected when the impedance es through the ∆R and ∆X zone in more than 5 ms. Any of the zones (Z1/Z1X, Z2, Z3 or Zp) can be selectively blocked. Three separate elements can be set to override the power swing blocking in case of major faults.

X

X Zone 3, T3 Zone P, Tp

Figure 3: Impedance characteristic Zone 2, T2 Zone 1X, T1 Zone 1, T1 R1Ph R2Ph RpPh R3Ph R1G R2G RpG R3G R Zone P, Tp reverse Zone 4, T4

4

R

Power- swing boundary Starting characteristic (fault detection)

Switch-on-to-fault (SOTF)/ Trip on reclose (TOR) The Switch-On-To-Fault and Trip On Reclose protection offers fast fault clearance immediately following circuit breaker closure. TOR can be configured to trip only for faults in selected zones so as to make sure the fault is on the protected line. They can also be directionalised by distance schemes. An overcurrent threshold (I>3) is available to accelerate the trip on high fault current. The SOTF protection is blocked when 2nd harmonic is detected in order to avoid maloperation due to transformer magnetising inrush. Channel-aided scheme logic The relay is fitted with a comprehensive selection of IEC and ANSI/IEEE compatible channel-aided schemes for 2 terminal feeders: • Permissive Underreach Protection, Accelerating Zone 2 (PUP Z2), • Permissive Underreach Protection Tripping via Forward Start (PUP forward), • Permissive Overreach Protection with Overreaching Zone 1 (POP Z1), • Permissive Scheme Unblocking logic (Loss of Guard, Loss of Carrier) • Blocking Overreach Protection with Overreaching zone 2 (BOP Z2), • Blocking Overreach Protection with Overreaching zone 1 (BOP Z1), • Weak Infeed and Echo logic. For double circuit lines, current reversal guard logic is available to prevent tripping of a healthy line. In addition to the pre-programmed schemes, the relays allow the creation of customised channel-aided schemes. Loss of load accelerated tripping The loss of load logic provides fast fault clearance for faults over the whole of a double end fed protected circuit for all types of fault, except three phase. It does not require a signalling channel but can be enabled when the channel associated with an aided scheme has failed. (Loss of load schemes are applicable only where three pole tripping is employed.)

Other Protection Functions Directional comparison scheme The programmable scheme logic (PSL) provides many scheme possibilities. An example of this is to create a directional comparison scheme integral to the relay. 21 forward to remote from remote

Directional comparison

t

The PSL can be used to initiate an external signal send when a forward fault directional decision is made. The relay at the other end can use this signal receive with its own forward fault decision to initiate a trip thus creating a unit protection of the whole line. Phase overcurrent Four independent stages are available for the phase overcurrent protection. Two stages (I>1 and I>2) may be selected as non-directional or directional (forward/reverse). All stages have definite time (DT) delayed characteristics, two of the stages (I>1 and I>2) may also be independently set to one of nine inverse definite minimum time (IDMT) curves (IEC and IEEE). The IDMT stages have a programmable reset timer for grading with electromechanical relays and to reduce clearance times where intermittent faults occur. • The I>1 and I>2 stages are also used for emergency overcurrent protection in case of a VT malfunction (MCB trip or fuse failure). • The I>3 DT stage is used as part of the SOTF/TOR elements and to detect close-up faults. • The I>4 DT stage is used for Stub Bus protection in 11/2 circuit breaker feeding arrangements. The phase fault elements direction is provided by the distance algorithms. Overcurrent elements operate correctly for close-up three phase faults as they use the superimposed “Delta” elements for the directional decision.

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Negative sequence overcurrent Negative sequence overcurrent protection can be set as either non-directional or directional (forward/reverse), and can operate for remote phase-phase and phaseearth faults even with delta-star transformers present. Earth fault elements Two functions of earth fault protection are available. They operate from a residual current that is derived internally from the summation of the three phase currents. The directionality of the earth fault elements is provided by either zero sequence voltage or negative sequence voltage. Channel-Aided Directional Earth Fault ("Aided DEF") Directional comparison protection operates in conjunction with one or two remote end relays. The Aided DEF protection is able to trip single or three-pole using permissive or blocking scheme logic. The transmission channels may be the same as those used by the distance protection or may be independent. Stand-by Earth Fault ("SBEF") There are two stand-by earth fault elements. Both can be set directional or non directional. Each can be set either DT or IDMT time-delayed. Stand-by earth fault elements always trip three pole and have an optional timer hold facility on reset. They may be enabled at the same time providing discriminative directional earth fault protection and back-up standby earth fault protection in the same device. To maintain operation during periods of VT malfunction, a back-up VTS fail definite time function can be applied to both elements. On VTS pick-up both are forced to non-directional operation and are subject to a revised DT time delay, set to mimic distance zone time delays. Under/overvoltage Under/overvoltage protection may be configured to operate from either phase-phase or phase-neutral voltage elements. Two independent stages with definite time elements are available, one of the stages can also be configured to an inverse characteristic.

Broken conductor The broken conductor protection detects unbalanced conditions caused by broken conductors, maloperation of single phase switchgear or by single phasing conditions.

Supervisory Functions Circuit breaker failure protection Circuit breaker failure protection may be used for backtripping upstream circuit breakers, and/or for retripping via a second breaker trip coil when a local breaker failure is detected. The circuit breaker failure logic may also be initiated externally from other protection devices if required. Voltage transformer supervision (VTS) Voltage transformer supervision is provided to detect loss of one, two or three VT signals, providing indication and inhibition of voltage dependent protection elements. An opto-input may also be configured to initiate the voltage transformer supervision alarm and blocking when used with MCBs or other external forms of voltage transformer supervision. The logic is as follows: U0

I0 IMAX

&

1 or 2 VT signals failed

&

3 VT signals failed

I2 U<

∆I

Current transformer supervision (CTS) Current transformer supervision is provided to detect loss of phase CT signals and inhibit the operation of current dependent protection elements. This is achieved by detecting the presence of residual current in the absence of residual voltage.

Control Circuit breaker control Circuit breaker control is available from the front interface, opto-inputs and remotely via the substation communications.

Figure 4: Programmable scheme logic (MiCOM S1)

Autoreclose with synchronism check The P441 provides three pole multishot (up to 4 shots) autoreclose with optional synchronism check. The P442 provides one and three pole multi-shot (up to 4 shots) autoreclose with optional synchronism check. For both models, the may select a single, two, three or four shot autoreclose cycle, with independently settable dead times and reclaim time. The check synchroniser offers independent settings for manual closing and autoreclosing. (Check synchronism is an optional extra which should be specified at the time of ordering). Programmable scheme logic Programmable scheme logic allows the to customise the protection and control functions. It is also used to program the functionality of the optoinputs, relay outputs and LED indications. The programmable scheme logic comprises 256 gate logic and 8 general purpose timers. The gate logic includes OR, AND and majority gate functions, with the ability to invert the inputs and outputs, and provide . The system is optimised to evaluate changes to the scheme logic signals and thus avoid unnecessary signal processing. The programmable scheme logic may be configured using the graphical MiCOM S1 PC based software, as 6

illustrated in Figure 4. The required logic is drawn as shown and is then ed directly into the relay. The total scheme operation is shown clearly and there is no need for complex Boolean formulas. The logic may also be ed from the relay and then modified using MiCOM S1. MiCOM Z-Graph MICOM Z-Graph allows ing distance protection settings from the relay and displaying the tripping characteristic for all 4 groups. The can modify the distance settings and the new configuration into the relay. Conversion to Rio format is also available.

Independent protection setting groups The settings are divided into two categories; protection settings, and control and settings. Four setting groups are provided for the protection settings to allow for different operating conditions and adaptive relaying.

Measurement and Recording Facilities The P440 series is capable of measuring and storing the values of a wide range of quantities. All events, fault and disturbance records are time tagged to a resolution of 1ms using an internal real time clock. An IRIG-B port is also provided in the P442 relay for accurate time synchronisation. A lithium battery provides a back-up for the real time clock and all records in the event of supply failure. This battery is supervised and easily replaced from the front of the relay. Measurements The measurements provided, which may be viewed in primary or secondary values, can be accessed by the back-lit liquid crystal display, or the communications ports. Phase notation is definable. Instantaneous measurements • Phase voltages Van Vbn Vcn • Line voltages Vab Vbc Vca • Neutral voltage Vn • Busbar voltage Ia Ib Ic • Phase currents • Neutral current In • Mutual current Im • Sequence currents and voltages • Frequency • Single and three phase power factor • Active power Wa Wb Wc Wtotal • Reactive power VAra VArb VArc VArtotal • Apparent power VAa VAb VAc VAtotal Derived values • Peak and average demand: W VAr

Post Fault Analysis Fault location A fault location algorithm provides distance to fault in miles, kilometres, ohms or percentage of line. A mutual compensation feature is provided to eliminate the effect of zero sequence mutual coupling from parallel lines.

Figure 5: Disturbance record analysing (MiCOM S1)

Event records Up to 250 time-tagged event records are stored in non-volatile memory, and can be extracted using the communication ports or viewed on the front display. Fault records Records of the last 5 faults are stored in non-volatile memory. The information provided in the fault record includes: • Indication of faulted phase • Protection operation • Active setting group • Fault location • Relay and CB operating time • Currents, voltages and frequency Disturbance records The internal disturbance recorder records: • 8 analogue channels, • 32 digital channels • 1 time channel. • Data is sampled 24 times a cycle. • 20 disturbance records. • Maximum duration of each record: 10.5 seconds. • Non-volatile memory. • All channels and trigger sources configured.

7

Disturbance records can be extracted from the relay via the remote communications and saved in the COMTRADE format. These records may be examined using MiCOM S1 or any suitable software program.

Switchgear Supervision Trip circuit monitoring and supervision Monitoring of the trip circuit in both breaker open and closed states. Supervision of the trip circuit using the programmable scheme logic. Circuit breaker state monitoring An alarm will be generated if there is a discrepancy between the open and closed s of the circuit breaker. Circuit breaker condition monitoring The circuit breaker condition monitoring features include: • monitoring the number of breaker trip operations • recording the sum of the broken current quantity ∑Ix, 1.0 ≤ x ≤ 2.0 • monitoring the breaker operating time • monitoring the number of breaker operations within a predetermined period.

Direction of forward current flow P2

P1

C

Watchdog

A

IA A

B C

b

IB

C4

5A

C5

See note 3. See note 4.

1A

C6

c

IC

C7

5A

C8 1A

C9

IM

See note 1.

C10

5A

C11

P2

B

A

P1 S2

C

1A

C12

Direction of for ward current flow A

Main Processor & Interface board

1A

C3

N

a

5A

C2

B C Phase rotation

n

C1

Input module

S1 B C Phase rotation

- transformer - 16 bit ADC

Parallel line Protection

C19

VA

- fixed scheme logic - programmable scheme logic - communications - interface

1

Measurements

> 1 N 00:12:00 I

250 Event records

St

12:01

+ J8 J10

TX

RX

LEDs Fixed LEDs

ON

LEDs

ON 01/01/99

programmable LEDs

C21

VC C22 C23

2.

V BUSBAR

I M input is for optional mutual compensation of fault locator.

See note 2.

V BUSBAR only required if check synchronism function enabled.

D2

5. The bridge rectifier is not present on the 24-48Vdc version.

L4

D7 D10

L5

D9 D12

6. Additional hardware for P442 only .

L7

D13 D16

21N

E2

L9

E1 E4

L10

E3 E6

See note 6.

21G

VTS/ CTS

46 BC

46

50 BF

50

50/ 51

51 FF

85

50N/ 51N

50/ 27

67

67N

78

27

25/ 79

L11

E5 E8 programmable

21P L8

D15

L12

E7 E10

L13

E9 E12

59

L14

E11 F14

RL16 RL17 RL18

See note 7.

L16

E15

Opto input board

RL20

F13 F14 F15

RL8 RL9 RL10 RL11

8

G1 G2 G3 G4 G5 G6 G7 G8 G9

RL12

RL13

G13 G14 G15

RL14

RL2 RL3 RL4

RL5

RL6

Courier or Modbus or IEC60870-5-103

programmable

F16 F17 F18

G10 G11 G12

RL7

Figure 6: System overview of the P442 relay

F1 F2 F3 F4 F5 F6 F7 F8 F9

RL19

RL1 L15

E13 E16

F16 SCN

F10 F11 F12

RL21

L6

D11 D14

7. ANSI CODES: Ground distance protection, 3 forward elements, 1 reverse element, 1 selectable element, quadrilateral zones 21P Phase distance protection, 3 forward elements, 1 reverse element, 1 selectable element, quadrilateral zones 85 Distance protection, communication aided 50 Phase overcurrent, High set, for Stub bus application 67/46 Negative sequence overcurrent 50/27 Switch onto fault and trip on reclose 50/51 Phase overcurrent, DT or IDMT 50/51N Stand-by Earth fault, DT or IDMT 51FF Fuse failure overcurrent 67 Phase directional overcurrent 67N Directional Earth fault, communication aided 78 Power swing detection, used to selectively permit or block tripping VTS Voltage transformer supervision CTS Current transformer supervision 50BF Breaker failure and backtrip 46BC Broken conductor detection 25 Check synchroniser 79 Autorecloser 59 Overvoltage 27 Undervoltage

L3

D5 D8

RS485

RL15 Programmable scheme logic

L2

D3 D6

programmable

Breaker monitoring

L1

D1 D4

3. C.T. connections are shown 1A connected and are typical only. 4. All C.T. connections have integral shorting. These s are made before the internal C.T. circuits are disconnected.

C24

Courier

Rear por t = 100 = 1000 kA = 100 ms

Relay output board

1.

Front por t

F18 No. trips SUM I2 CB opt time

Relay output board

Notes:

RS232

20 Disturbance records

Relay output board

Co-processor board

C20

VB

Fibre optic Communication for IEC60870-5-103 (optional)

See note 6.

Fault A-B - C 15ms Ia = 1000 A Ib = 1000 A Ic = 1000 A

5 Fault reports

48V field voltage

+ J2

IRIG-B input (optional)

01/01/99

Trip A B C

J11 Relay failed J12 J13 Relay healthy J14 + J7 48V field voltage J9

Auxiliary voltage J1 See note 5.

kA, kV , Hz kW , kVA , kV kW , kV , rh Sequence compon ents

0 0

4

Power supply board

B

S1

IRIG-B board

S2

- analogue quantities acquisition and filtering - thresholds calculation - protection algorithms

A

programmable

G16 G17 G18

H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18

programmable See note 6.

Local and Remote Communications Two communication ports are available; a rear port providing remote communications and a front port providing local communications. Remote communications The remote communications are based on RS485 voltage levels. Any of the protocols listed below can be chosen at the time of ordering, for easy system integration such as MiCOM S10, PSCN, SPACE 2000 and other SCADA or integrated protection control packages. Courier/K-Bus The Courier language is a protocol which has been developed specifically for the purpose of developing generic PC programs that will, without modification, communicate with any device using the Courier language. Modbus Modbus is a master/slave protocol, whereby the master must have knowledge of the slave's databases and addresses. The MiCOM P440 series is implemented in Modbus RTU mode. IEC 60870-5-103 The relay is compliant with the transmission protocol defined by the specification IEC 60870-5-103. An optional fibre optic interface is available for this protocol. The standardised messages based on the VDEW communication protocol are ed. Local communications The front serial communications port has been designed for use with MiCOM S1 software, which fully s functions within the relay by providing the ability to program the settings off-line, configure the programmable scheme logic, extract and view event, disturbance and fault records, view the measurement information dynamically and perform control functions. ALSTOM’s PAS&T can also be used with the local communications port. MiCOM S1 and PAS&T softwares are provided separately.

of reliability. The results of the self-test functions are stored in non-volatile memory. Test features available on the interface provide examination of input quantities, states of the digital inputs, relay outputs and selected internal logic. A local monitor port providing digital outputs, selected from a prescribed list of signals, including the status of protection elements, may be used in conjunction with test equipment. These test signals can also be viewed using the Courier and Modbus communications ports.

Interface The front interface comprises: 1 6 3 2 5 4 7

8

Hardware Description All models within the MiCOM P440 series include: • A back-lit liquid crystal display • 12 LEDs • An optional IRIG-B port • An RS232 port • An RS485 port • A /monitor port • A battery (supervised) - time function only • N/O and N/C watchdog s • Supervised 48V field voltage • 1A/5A dual rated CTs The case variations between the MiCOM P441 and P442 models are:

Opto-inputs Relay outputs

P441 P442 8 16 6 N/O 9 N/O 8 C/O 12 C/O

The opto-inputs, relay outputs and 8 of the LEDs are preconfigured as a default, but may be re-programmed by the . The opto-inputs are independent and may be powered from the 48V field voltage available from the relay. The relay outputs may be configured as latching or self reset. All CT connections have integral shorting. System frequency

(1) (2) (3) (4) (5)

(6)

(7)

(8)

A 2 x 16 character back-lit liquid crystal display. Four fixed function LEDs. Eight programmable LEDs. Menu navigation and data entry keys. "READ" ; and "CLEAR" C keys for viewing and acknowledging alarms. An upper cover identifying the product name. The cover may be raised to provide access to the product model number, serial number and ratings. A lower cover concealing the front RS232 port, down load/monitor port and battery compartment. The front of the cover displays the name of the product, but may also be customised to display a defined name. Facility for fitting a security lead seal.

Other default displays

Three-phase voltage

Alarm messages

Date and time

Figure 7: Menu structure

Diagnostics Automatic tests performed including power-on diagnostics and continuous self-monitoring ensure a high degree 9

Column 1 System data

Column 2 View records

Data 1.1 Language

Data 2.1 Last record

Other column headings

Column n Group 4 Distance Elts

Data n.1 Line Setting Note: The C key will return to column header from any menu cell

Data 1.2

Data 2.2 Time and date

Data n.2 Line Length

Other setting cells in column 1

Other setting cells in column 2

Other setting cells in column n

Data 1.n level 2

Data 2.n Reset Indication

Data n.n kZm Angle

The interface and menu text are available in English, French, German and Spanish as standard. Labels supplied with the device allow customised descriptions of the LEDs. A selectable default display provides measurement information, time/date, protection functions and plant reference information. The ability to customise the menu text and alarm descriptions is also ed. protection protection may be independently applied to the front interface, front communications port and rear communications port. Two levels of protection are available providing access to the controls and settings respectively.

Technical Data Operating time Distance protection: • 18ms minimum • 22ms typical at 60Hz 25ms typical at 50Hz • Drop-off time 18ms at 60Hz 22ms at 50Hz Overcurrent protection: • 10ms minimum Breaker failure protection: • Reset time <15ms Accuracy • Distance protection: ±5% • Fault locator: ±3% Ratings Inputs: • AC current (In) 1A - 5A dual rated ac rms • AC voltage (Vn) 80 - 140V rms nominal phase-phase • Rated frequency 50/60Hz • Operative range 45Hz to 65Hz • Auxiliary voltage (Vx) Nominal (V)

Operative range

dc

dc

ac

24 - 48

19 to 65

–

48 - 110

37 to 150

24 to 110

110 - 250

87 to 300

80 to 265

Outputs: • Field voltage supply 48V dc (current limit: 112mA) Burdens • DC auxiliary voltage 15VA typical (P441) 18VA typical (P442) • AC auxiliary voltage 16W typical (P441) 19W typical (P442) • Optically isolated inputs 0.24W per input at 48V • Nominal voltage circuit Un 100 – 120V <0.03VA at 110V • Nominal current circuit Phase and neutral <0.04VA at 1A <0.4VA at 5A Thermal withstand • AC current inputs 4.0 In continuous 30 In for 10s 100 In for 1s • AC voltage inputs 2 Vn continuous 2.6 Vn for 10s Current transformer requirements • For Class X current transformers : Vk = IF (1 + X/R)(RB + RCT + RL) Where: = The maximum secondary • IF fault current at the relay Zone 1 reach point. • X/R = The primary system ratio. • RB = The relay burden. • RCT = The CT secondary winding resistance. • RL = The resistance of the cable connection the relay to the CTs, (lead and return for earth faults, lead only for phase faults.) • For IEC class 5P protection current transformers: [(VA.ALF)/In] + [RCT.ALF.In)> IF(1 + X/R)(RB + RCT + RL) Where: VA = burden ALF = accuracy limit factor

10

Digital inputs • Optically isolated inputs may be energised from the supervised 48V field voltage provided or an external battery. • Operating voltage >30V dc • Max. input voltage 60V dc • AC immunity 50V rms s • ratings: Make: 30A and carry for 3s Carry: 5A continuous Break: dc 50W resistive 25W inductive (L/R = 40ms) ac 1250VA resistive ac 1250VA inductive (P.F. = 0.5) Subject to maxima of 5A and 300V • Watchdog ratings dc 30W resistive dc 15W inductive (L/R = 40ms) ac 375W inductive (P.F. = 0.7) • Durability: Loaded 10,000 operations minimum Unloaded 100,000 operations minimum Rear communications port • Connection Multidrop (32 units) • Cable type Screened twisted pair • Cable length 1000m max • Connector Screw terminals • Signal levels RS485 • Isolation SELV • Remote access • Transmission rate: 9600, 19200 or 38400 bits/s. Protocols ed • Courier • Modbus • IEC 60870-5-103 Note: An interface to an optical fibre, type 850nm, BFOC 2.5 connector is available for IEC 60870-5-103.

Front communications port • Connection Point to point • Cable type Multi-core • Cable length 15m max Connector RS232 DTE 9 pin D-type female • Protocol Courier • Isolation ELV • Local access • Transmission rate: 9600, 19200 or 38400 bits/s. IRIG-B Port • Carrier signal Amplitude modulated • Cable type 50 ohm coaxial cable • Connection BNC • Isolation SELV Internal battery • Battery type:

1/ 2

AA, 3.6V

• Battery life:

>5 years

With auxiliary supply removed: 1 year /monitor port This is a 25 pin D-type female connector located on the front interface and is specifically designed for test purposes and software . • Isolation ELV • Local access High voltage withstand • Dielectric withstand IEC 60255-5: 1977 2kV rms for 1 minute between all case terminals connected together and the case earth. 2kV rms for 1 minute between all terminals of independent circuits with terminals on each independent circuit connected together. ANSI/IEEE C37.90-1989 (r1994) 1kV rms for 1 minute across the open s of the watchdog relays. 1kV rms for 1 minute across open s of changeover output relays. 1.5kV rms for 1 minute across open s of normally open output relays.

• High voltage impulse IEC 60255-5: 1977 Three positive and three negative impulses of 5kV peak, 1.2/50µs, 0.5J between all terminals and all terminals and case earth. This is not applicable to the front RS232 and /monitor ports. Electrical environment • DC supply interruption IEC 60255-11: 1979 The unit will withstand a 20ms interruption in the auxiliary supply, in its quiescent state, without deenergising. • AC ripple on dc supply IEC 60255-11: 1979 The unit will withstand a 12% ac ripple on the dc supply. • AC voltage dips and short interruptions IEC 61000-4-11: 1994 20ms interruptions/dips. • High frequency disturbance IEC 60255-22-1: 1988 Class III At 1MHz, for 2s with 200Ω source impedance: 2.5kV peak between independent circuits and independent circuits and case earth. 1.0kV peak across terminals of the same circuit. • Fast transient disturbance IEC 60255-22-4 : 1992 Class IV 4kV, 2.5kHz applied directly to auxiliary supply 4kV, 2.5kHz applied to all inputs. • Surge withstand capability IEEE/ANSI C37.90.1 (1989) 4kV fast transient and 2.5kV oscillatory applied directly across each output , optically isolated input and power supply circuit. • Radiated immunity C37.90.2: 1995 25MHz to 1000MHz, zero and 100% square wave modulated. Field strength of 35V/m. • Conducted immunity IEC 61000-4-6: 1996 Level 3 10V, 150kHz to 80MHz at 1kHz 80% am

11

• Electrostatic discharge IEC 60255-22-2: 1996 Class 4 15kV discharge in air to interface, display and exposed metal work. IEC 60255-22-2: 1996 Class 3 8kV discharge in air to all communication ports. 6kV point discharge to any part of the front of the product. • Surge immunity IEC 61000-4-5: 1995 Level 4 4kV peak, 1.2/50µs between all groups and case earth. 2kV peak, 1.2/50µs between terminals of each group. • EMC compliance 89/336/EEC Compliance to the European Commission Directive on EMC is claimed via the Technical Construction File route. Generic Standards were used to establish conformity: EN50081-2: 1994 EN50082-2: 1995 • Product safety 73/23/EEC Compliance with European Commission Low Voltage Directive. Compliance is demonstrated by reference to generic safety standards: EN61010-1: 1993/A2: 1995 EN60950: 1992/A11: 1997 Atmospheric environment • Temperature IEC 60255-6:1988 Operating –25°C to +55°C Storage –40°C to +70°C Transit –25°C to +70°C IEC 60068-2-1: 1990/A2:1994 Cold IEC 60068-2-2: 1974/A2:1994 Dry heat • Humidity IEC 60068-2-3: 1969 56 days at 93% RH and +40°C • Enclosure protection IEC 60529: 1989 IP52 Protection (front ) against dust and dripping water at 15° to the vertical.

Mechanical environment 23.30

• Vibration IEC 60255-21-1: 1996 Response Class 2 Endurance Class 2

8 off holes Dia. 3.4

155.40 A B

BA

159.00

168.00 AB

• Shock and bump IEC 60255-21-2: 1995 Shock response Class 2 Shock withstand Class 1

Sealing strip

177.0 (4U)

BA

181.30 202.00

10.35

483 (19” rack) Flush mounting cut-out detail

A = Clearance holes B = Mounting holes 200.00

• Seismic IEC 60255-21-3: 1995 Class 2

Note: If mounting plate is required use flush mounting cut out dimensions All dimensions in mm

Cases P441 P442 • Weight P441 P442

MiCOM 40TE MiCOM 60TE

Secondary cover (when fitted) 240.00 Incl. wiring

Front view

c.7.7 kg c.9.4 kg

157.5 max

177.00

Additional information MiCOM P441 & P442 Service Manual

Courier Communications

206.00

SM1.1671 (TG1.1671 + OG1.1671)

Side view

30.00

Figure 8: Case size P441 (40TE)

R4113

MiCOM S1 Manual R8610

PAS&T

R8514

Case The MiCOM P440 series relays are housed in a specially designed case providing a high density of functionality within the product, a customisable interface, additional functions and information concealed by upper and lower covers. Physical protection of the front interface and prevention of casual access is provided by an optional transparent front cover, which can be fitted or omitted according to choice, since the front has been designed to IP52 protection against dust and water. The case is suitable for either rack or mounting as shown in Figures 8 and 9.

116.55

23.25 AB

142.45 A B

BA

159.00 AB

10.30

B A

177.0 (4U)

BA

129.50 155.40 305.50 303.50

Sealing strip

12 off holes Dia. 3.4 168.00

Midos Parts Catalogue and Assembly Instructions R7012

483 (19” rack) A = Clearance holes B = Mounting holes

All dimensions in mm

Secondary cover (when fitted) 240.00 Incl. wiring

Front view

157.5 max

177.00

309.60

30.00

Figure 9: Case size P442 (60TE)

12

Side view

MiCOM P442 Specification An integrated distance protection and autoreclose scheme shall provide one and three phase protection for two and three terminal applications, with faulted phase and fault value indications. An integral four shot, one and three pole autorecloser shall synchronism check. The relay must have a five zone characteristic with an independent settable earth fault coefficient per zone. Resistance reach for phase and earth fault protections shall be independently settable with provision being made for non-homogeneous lines or transformer protection. Relay operating time for faults in the pilot zone or for faults within zone 1 reach shall be less than 1.5 cycle. Distance phase selection and directionality shall operate correctly for evolving faults between phases, between forward and reverse directions and between parallel lines (cross-country faults). In addition to distance protection, the relay shall include instantaneous overcurrent protection for close-up fault, stub bus protection, SOTF/TOR protection, under/overvoltage protection, breaker failure protection, power swing selective blocking, parallel line compensation, and a comprehensive range of IEC and ANSI/IEEE compatible pilot schemes for distance and DEF, and back-up including a comprehensive selection of IEC and ANSI/IEEE compatible IDMT characteristics for phase and earth fault overcurrent protection. Maximised protection availability shall be provided through extensive self-monitoring, self-test and CT/VT supervision. Internal three-phase VT supervision shall be provided. Flexible programmable scheme logic shall be provided in order to allow the to customise the protection and control functions, using a graphical interface software. Programming of the device shall be possible using a front interface, local and remote communications ports. The front interface shall provide independent keys for the viewing and acknowledgement of alarms. A comprehensive range of measurement values shall be available for viewing on the interface and the communication ports.

Time-tagged event, fault and disturbance records shall be stored in non-volatile memory. The internal disturbance recorder shall have a capacity to store 20 records, each record shall store sampled data from 8 analogue and 32 digital channels over a period of 10 seconds.

A complete software package shall be able to provide for local and remote programming, and extraction of records from the device.

Information Required with Order MiCOM P 4 4

Relay type

A 0 0 0 0 A

1

Distance Protection Relay

Version 3 pole tripping/reclosing, 8 opto inputs, 14 relay outputs, no IRIG-B 1 & 3 pole tripping/reclosing, 16 opto inputs, 21 relay outputs, IRIG-B & Fibre optic converter options

1 2

Vx auxiliary rating 24 - 48V dc 48 - 110V dc (30 - 100V ac)

1

110 - 250V dc (100 - 240V ac)

3

2

Hardware options 1

Standard version IRIG-B input (P442 only)

2 3

Fibre optic converter (IEC 60870-5-103) (P442 only) IRIG-B input & Fibre optic converter (IEC 60870-5-103) (P442 only)

4

Software options Without check synchronising

A

With check synchronising

B

Protocol options K-Bus

1

Modbus

2

IEC 60870-5-103 (VDEW)

3

MiCOM

Software type

S 1 A0

A

Setting software Options Base version (Settings editor, Monitoring, PSL editor, Menu text editor)

1

Base version + Disturbance Analyser and Archiver

2

Note :

Our policy is one of continuous product development. The order code for MiCOM S1 may be subject to change.

Accessories

Please quote on order

Rack frame (in accordance with CEI 60297).

FX0021 001

Case to rack sealing gaskets are available to improve the overall IP rating of the , (10 per order)

GN2044 001

M4 90° pre-insulated ring terminals: Blue - Wire size 1.04 to 2.63mm 2 (100 per order) Red - Wire size 0.25 to 1.65mm 2 (100 per order)

ZB9124 900 ZB9124 901

Secondary cover:

P441 P442

Blanking plates:

Size 10TE Size 20TE Size 30TE Size 40TE

13

Size 40TE Size 60TE

GN0037 001 GN0038 001 GJ2028 002 GJ2028 004 GJ2028 006 GJ2028 008

Protection Setting Ranges

Setting range Step size Setting Line setting

Line Impedance Line Angle

0.001 - 500 Ω – 90° - + 90°

0.001 Ω 1°

Zone setting

Zone Status

KZ1 Res Comp KZ1 Angle Z1 Z1X R1G R1Ph tZ1 KZ2 Res Comp KZ2 Angle Z2 R2G R2Ph tZ2 KZ3/4 Res Comp KZ3/4 Angle Z3 R3G - R4G R3Ph - R4Ph tZ3 Z4 tZ4 Zone P – Direct. KZp Res Comp KZp Angle Zp RpG RpPh tZp

Bit 0: Z1X Enable, Bit 1: Z2 Enable, Bit 2: Zp Enable, Bit 3: Z3 Enable, Bit 4: Z4 Enable. 0-7 –180° - +180° 0.001/In - 500/In Ω 0.001/In - 500/In Ω 0 - 400/In Ω 0 - 400/In Ω 0 - 10s 0-7 –180° - +180° 0.001/In - 500/In Ω 0 - 400/In Ω 0 - 400/In Ω 0 - 10s 0-7 –180° - +180° 0.001/In - 500/In Ω 0 - 400/In Ω 0 - 400/In Ω 0 - 10s 0.001/In - 500/In Ω 0 - 10s Forward or Reverse 0-7 –180° - +180° 0.001/In - 500/In Ω 0 - 400/In Ω 0 - 400/In Ω 0 - 10s

0.001 0.1° 0.001/In Ω 0.001/In Ω 0.01/In Ω 0.01/In Ω 0.002s 0.001 0.1° 0.001/In Ω 0.01/In Ω 0.01/In Ω 0.01s 0.001 0.1° 0.001/In Ω 0.01/In Ω 0.01/In Ω 0.01s 0.001/In Ω 0.01s 0.001 0.1° 0.001/In Ω 0.01/In Ω 0.01/In Ω 0.01s

Fault Locator

KZm Mutual Comp 0 - 7 KZm Angle –180° - +180°

0.001 0.1°

Channel-aided schemes Setting

Setting range

Distance Schemes

Program Mode Standard Mode

Standard Scheme, open Scheme Basic + Z1X, POP Z1, POP Z2, PUP Z2, PUP Fwd, BOP Z1, BOP Z2.

Fault Type

Phase to Ground, Phase to Phase, Both Enabled.

Trip Mode

Force 3 Poles, 1 Pole Z1 & Carrier receive, 1 Pole Z1 Z2 & Carrier receive.

10

10 UK LTI

IEC SI 1

Operating time (s)

0.3 km (0.2 mile) 0.010 km - 1000 km (625 miles) (0.005 m)

100

Operating time (s)

Line Length

100

1000

Distance protection element

1

IEEE MI

IEC VI

IEEE VI US CO2

IEC EI

US CO8 IEEE EI 0.1

0.1 1

10

100

1

I

10

100

I

Current (Multiple of s)

Current (Multiple of s)

IEC/UK curves

IEEE/US curves

TMS = 1

TD = 7

IEC Standard inverse

t = TMS x

t = TMS x

IEC Very inverse

IEC Extremely inverse

UK Long time inverse

t = TMS x

t = TMS x

0.14

I

0.02

–1

Is

13.5

I

IEEE Moderately inverse

t=

IEEE Very inverse

t=

IEEE Extremely inverse

t=

US CO8 Inverse

t=

Is –1

80

I

2

Is –1

120

I

Is –1

US CO2 Short time inverse

t=

TD x 7

0.0515

I

–1

19.61

TD x 7

I

TD x 7

I

TD x 7

I

TD x 7

+ 0.114

0.02

Is

+ 0.491

2

Is –1

28.2 2

+ 0.1217

Is –1

5.95 2

0.02394

I

+ 0.18

Is –1

0.02

+ 0.01694

Is –1

Figure 10 - IDMT curves

Setting

Setting range

Distance carrier receive

None, Permissive Z1, Permissive Z2, Permissive Forward, Block Z1, Block Z2.

Step size

Tp tReversal Guard TOR-SOTF Mode

0 - 1s 0.002s 0 - 0.15s 0.002s Bit 0: TOR Z1 Enabled, Bit 1: TOR Z2 Enabled, Bit 2: TOR Z3 Enabled, Bit 3: TOR All Zones Enabled, Bit 4: Dist. Scheme Enabled, Bit 5: SOFT All Zones, Bit 6: SOFT Level Detectors. Z1 Ext. /Chan. Fail Disabled or Enabled Weak Infeed

Mode Status Single Pole Trip V< Thres. Trip Time Delay

Disabled, Echo, Trip & Echo. Disabled or Enabled 10V - 70V 5V 0 - 1s 0.002s

Signal Send Zone None, CsZ1, CsZ2, CsZ4.

14

Setting

Setting range

Step size

Loss of Load

Mode Status Chan. Fail I< Window

Disabled or Enabled Disabled or Enabled 0.05 x In - 1 x In 0.01s - 0.1s

0.05 x In 0.01s

Power swing blocking Setting

Setting range

Delta R Delta X IN> Status IN> (% Imax) Imax line> Status Imax line> I Phase>Status I Phase > Unblock. Delay Blocked Zones

0 - 400/In Ω 0.01/In Ω 0 - 400/In Ω 0.01/In Ω Disabled or Enabled 10% - 100% 1% Disabled or Enabled 10% - 100% 1% Disabled or Enabled 1 x In - 20 x In 0.01 x In 0 - 30s 0.1s Bit 0: Z1&Z1X Block, Bit 1: Z2 Block, - Bit 2: Z3 Block, Bit 3: Zp Block.

Step size

Overcurrent Protection

Voltage transformer supervision

Setting

Setting range Step size

Setting

I>1 Function I>1 Direction I>1 VTS Block I>1 Current Set I>1 Time Delay I>1 Time VTS I>1 TMS I>1 Time Dial I>1 Reset Char I>1 tReset I>2 Function I>2 Direction I>2 VTS Block I>2 Current Set I>2 Time Delay I>2 Time VTS I>2 TMS I>2 Time Dial I>2 Reset Char I>2 tRESET I>3 Status I>3 Current Set I>3 Time Delay I>4 Status I>4 Current Set I>4 Time Delay

DT or IDMT (see Figure 8) Non-Directional, Forward, Reverse Block or Non directional 0.08 x In - 4.0 x In 0.01 x In 0 - 100s 0.01s 0 - 100s 0.01s 0.025 - 1.2 0.025 0.5 - 15 0.1 DT or Inverse 0 - 100s 0.01s DT or IDMT (see Figure 8) Non-Directional, Forward, Reverse Block or Non directional 0.08 x In - 4.0 x In 0.01 x In 0 - 100s 0.01s 0 - 100s 0.01s 0.025 - 1.2 0.025 0.5 - 15 0.1 DT or Inverse 0 - 100s 0.01s Disabled or Enabled 0.08 x In - 32 x In 0.01 x In 0s - 100s 0.01s Disabled or Enabled 0.08 x In - 32 x In 0.01 x In 0s - 100s 0.01s

IN>2 VTS Block Block or Non directional IN>2 Current Set 0.08 x In - 32 x In 0.01 x In 0.01s IN>2 Time Delay 0 - 200s 0.01s IN>2 Time VTS 0 - 200s IN> Directional 1° IN> Char Angle –95° - +95°

Negative sequence overcurrent Setting

Setting range Step size

I2> Status I2> Directional I2> VTS I2> Current Set I2> Time Delay I2> Char Angle

Disabled, Enabled Non-Directional, Forward, Reverse Block, Non-Directional 0.08In - 4In 0.01In 0s - 100s 0.01s –95°- +95° –1°

Broken conductor detection Setting

Setting range Step size

Broken Conductor Enabled/Disabled 0.2 - 1 I2/I1 I2/I1 Time Delay 0s - 100s

0.01 0.1s

Earth fault protection Setting

Setting range Step size

IN>1 Function IN>1 Direction IN>1 VTS Block IN>1 Current Set IN>1 Time Delay IN>1 Time VTS IN>1 TMS IN>1 Time Dial IN>1 Reset Char IN>1 tRESET IN>2 Status IN>2 Direction

DT or IDMT (see Figure 8) Non-Directional, Forward, Reverse Block or Non directional 0.08 x In - 4.0 x In 0.01 x In 0 - 200s 0.01s 0 - 200s 0.01s 0.025 - 1.2 0.025 0.5 - 15 0.1 DT or Inverse 0 - 100s 0.01s Disabled or Enabled Non-Directional, Forward, Reverse

Polarisation

Setting range Step size

Setting

Setting range Step size

VTS Time Delay VTS I2> & I0> Inhibit Detect 3P Threshold 3P U< Delta I>

1 - 20s 0 - 1 x In

1s 0.01 x In

Enabled or Disabled 10 - 70V 0.01 - 5A

1V 0.01A

Zero Sequence or Negative Sequence Current transformer supervision

Channel-aided D.E.F.

Setting

Setting range Step size

Setting

Setting range Step size

Aided DEF Status Polarisation V>Voltage set IN Forward> Time Delay Scheme Logic Tripping

Disabled or Enabled Zero Sequence or Neg. Sequence 0.05 - 20V 0.05V 0.05 x In - 4 x In 0.01 xIn 0 - 10s 0.1s Shared, Blocking or Permissive Three Phase or Single Phase

CTS Status CTS VN< Inhibit CTS IN> Set CTS Time Delay

Enabled or Disabled 0.5 - 22V 0.08 x In - 4 x In 0 - 10s

Voltage protection Setting

Setting range Step size

V< & V> Mode

Bit 0: V<1 Trip, Bit 1: V<2 Trip, Bit 2: V>1 Trip, Bit 3: V>2 Trip

Undervoltage Setting

Setting range Step size

V< Measur’t Mode Phase-Phase or Phase-Neutral V<1 Function V<1 Voltage Set V<1 Time Delay V<1 TMS V<2 Status V<2 Voltage Set V<2 Time Delay V<2 Poledead Inh

Disabled, DT or IDMT 10 - 120V 0 - 100s 0.5 - 100 Enabled or Disabled 10 - 120V 0 - 100s Enabled or Disabled

1V 0.01s 0.5 1V 0.01s

Overvoltage

V> Meas’t Mode V>1 Function V>1 Voltage Set V>1 Time Delay V>1 TMS V>2 Status V>2 Voltage Set V>2 Time Delay

Phase-Phase or Phase-Neutral Disabled, DT or IDMT 60 - 185V 1V 0 - 100s 0.01s 0.5 - 100 0.5 Enabled or Disabled 60 - 185V 1V 0 - 100s 0.01s

Check synchronisation Setting

Setting range Step size

C/S Check Bit 0: Live Bus / Dead Line, Scheme for A/R Bit 1: Dead Bus / Live Line, Bit 2: Live Bus / Live Line. C/S Check Bit 0: Live Bus / Dead Line, Scheme for Man Bit 1: Dead Bus / Live Line, CB Bit 2: Live Bus / Live Line. V< Dead Line V> Live Line V< Dead Bus V> Live Bus Diff Voltage Diff Frequency Diff Phase Bus-Line Delay

5 - 30V 30 - 120V 5 - 30V 30 - 120V 0.5 - 40V 0.02 - 1Hz 5° - 90° 0.1 - 2s

Setting

Setting

Setting range Step size

1P Trip Mode 3P Trip Mode 1P Rcl - DT 1 3P Rcl - DT 1 Dead Time 2 Dead Time 3 Dead Time 4 Reclaim Time Close Pulse A/R Inhibit Wind

1, 1/3, 1/3/3, 1/3/3/3. 3, 3/3, 3/3/3, 3/3/3/3. 0.1 - 5s 0.01s 0.1 - 60s 0.01s 1 - 3600s 1s 1 - 3600s 1s 1 - 3600s 1s 1 - 600s 1s 0.1 - 10s 0.01s 1 - 3600s 1s

Block A/R

Setting range Step size

Breaker Fail

CB Fail 1 CB Fail 2 CBF Non I Reset CBF Ext Reset

0 - 10s 0 - 10s I< Only, CB Open & I<, Prot Reset & I< I< Only, CB Open & I<, Prot Reset & I<

0.005s 0.005s

Undercurrent

I
0.05 x In - 3.2 x In 0.01 x In

15

1V 1V 1V 1V 0.1V 0.01Hz 2.5° 0.1s

Autoreclose

Autoreclose Lockout

Circuit breaker failure

0.5 V 0.01 x In 1s

Bit 0: At tZ2, Bit 1: At tZ3, Bit 2: At tZp, Bit 3: LoL Trip, Bit 4: I2> Trip, Bit 5: I>1 Trip, Bit 6: I>2 Trip, Bit 7: V<1 Trip, Bit 8: V<2 Trip, Bit 9: V>1 Trip, Bit 10: V>2 Trip, Bit 11: IN>1 Trip, Bit 12: IN>2 Trip, Bit 13: Aided DEF Trip.

TRANSMISSION & DISTRIBUTION Protection & Control, HQ, 60 Route de Sartrouville, BP58, 78230 Le Pecq Cedex, Tel: +33 (0) 134 80 79 00 Fax: +33 (0) 134 80 79 13 Email: [email protected] Internet: www.alstom.com ©2000 ALSTOM. ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and service marks of ALSTOM. Other names mentioned, ed or not, are the property of their respective companies. Our policy is one of continuous development. Accordingly the design of our products may change at any time. Whilst every effort is made to produce up to date literature, this brochure should only be regarded as a guide and is intended for information purposes only. Its contents do not constitute an offer for sale or advice on the application of any product referred to in it. We cannot be held responsible for any reliance on any decisions taken on its contents without specific advice.

Publication N1 1671C

110020 S Printed in England