MiCOM P14x feeder management relays provide anintegrated solution for the complete protection,control and monitoring of overhead lines andunderground cables from distribution to transmissionvoltage levels.

The wide range of auxiliary functions provides theuser with sufficient information to efficiently maintainthe power system and its components includingcircuit breakers, CTs, VTs, etc.

A customizable, friendly, multi-lingual user interfaceand programmable graphical scheme logic allows forsimple and flexible applications on any network.

With optional High Speed - High Break contacts, thehigh break performance ensures no burn-out ofcontacts during normal operation or situations suchas breaker failure, or defective CB auxiliary contacts.The need for external electromechanical trip relayscan be reduced/removed by transferring the highrating and durability duties into the MiCOM devicethus giving further application and cost benefits.

Connecting the relay to virtually any kind ofSubstation Automation System or SCADA is madepossible by the wide range of updatedcommunication protocols, including IEC 61850.A range of hardware interfaces are available for easyintegration into any new or legacy system.

Customer Benefits

• 1A & 5A in same relay• Wide auxiliary supply

voltage range• Option of multiple

communication protocoland interfaces, includingIEC 61850

• User customisablemenu text

AREVA T&D

MiCOM P14xFeeder ManagementRelays

PROTECTION

P141, P142, P143

2>3

Your search for a single boxfeeder management relayends with MiCOM P14x

IEC 61850 P141 P142 P143

50/51/67 OcpPTOC/RDIR Directional / non-directional, instantaneous / • • •time delayed phase overcurrent (6 stage)

50N/51N/67N EfdPTOC/EfmPTOC Directional / non-directional, instantaneous / • • •time delayed, measured earth fault (4 stage)

67N SenEftPTOC Sensitive directional earthfault • • •(SEF/ I Cosφ I Sinφ) (4 stage)

67W SenEftPTOC Wattmetric earthfault • • •YN Neutral admittance protection • • •64 SenRefPDIF Restricted earthfault • • •

Blocked overcurrent • • •Selective overcurrent • • •Cold load pick-up • • •

51V Voltage controlled overcurrent • • •46 NgcPTOC Directional / non-directional • • •

negative sequence overcurrent49 ThmPTTR RMS thermal overload (single / dual time constant) • • •37P / 37N Phase and neutral undercurrent • • •27 VtpPhsPTUV Under voltage (2 stage) • • •59 VtpPhsPTOV Over voltage (2 stage) • • •59N VtpResPTOV Residual over voltage (Neutral displacement) • • •

(2 stage)47 NgvPTOV Negative sequence overvoltage • • •81U PTUF Under frequency (9 stage) - Advanced • • •81O PTOF Over frequency (9 stage) - Advanced • • •81R PFRC Rate of Change of Freq. Prot. (9 stage) - Advanced) • • •81RF Frequency supervised rate of change of frequency • • •

(9 stage) - Advanced81RAV Average rate of change of frequency • • •

(9 stage) - AdvancedFreq. based load restoration (9 stage) - Advanced • • •Rate of change of voltage protection (2 stage) • • •

BC Broken conductor (open jumper) • • •50BF RBRF Circuit breaker failure • • •VTS Voltage transformer supervision • • •

(1, 2 & 3 phase fuse failure detection)CTS Current transformer supervision • • •49SR Silicon rectifier overload protection • • •79 RREC 4 shot three pole auto reclose - • •25 RSYN Check synchronising - - •

2nd Harm Block 2nd Harmonic Blocking • • •32R/32L/32O Phase segregated power • • •

Sensitive power • • •OptGGIO Digital inputs (maximum) * 8 16 32RlyGGIO Output relays (maximum) 8 15 32

(Hi Break - Hi speed option available)*Front communication port (RS232) • • •Rear communication port (RS485/Optic/Ethernet) * • • •Second rear communication port (RS232/RS485) * Option Option OptionTime synchronisation port Option Option Option(IRIG B modulated/un-modulated) *InterMiCOM teleprotection for direct relay - relay Option Option Optioncommunication EIA (RS) 232 for MODEM linksupto 19.2kbit/sec

* It may not be possible to get all in one particular model, refer data sheet for model selection

PROTECTION FUNCTIONS OVERVIEW

APPLICATION

The MiCOM P14x range is suitable for all applicationswhere overcurrent protection is required. It is suitablefor solidly earthed, impedance earthed, Petersencoil earthed and isolated systems.

First application shows a parallel transformer protectionwhere the P141 replaces many of the discreteprotection elements normally associated with the LVside of the transformer. The protection includes non-directional and directional phase overcurrent and earthfault, restricted earth fault and circuit breaker failureprotection. The second application shows a P143protecting a plain feeder using phase overcurrent,sensitive earth fault, negative sequence overcurrent,thermal protection and breaker failure protection. Theintegral autorecloser with check synchronising can beconfigured to grade with downstream reclosers.

MANAGEMENT FUNCTIONS

In addition to the wide range of protection functionslisted in the table, all relays in the P14x range areprovided with the following measurement, control,monitoring, post fault analysis and self-diagnosticfunctions.

> Measurement of all instantaneous & integratedvalues

> Circuit breaker control, status & conditionmonitoring.

> Trip circuit and coil supervision> 4 alternative setting groups> Control inputs> Fault locator

> Programmable scheme logic> Programmable allocation of digital inputs and outputs> Sequence of event recording> Comprehensive disturbance recording (waveform capture)> User configurable LEDs> Local and remote communication ports> Multiple communication protocol and interface options> Time synchronisation> Fully customisable menu texts> Multi level password protection> Power-up diagnostics and continuous self-monitoring of relay> User friendly setting and analysis software> Read Only Mode> Enhanced opto input time stamping> Enhanced Check Sync. feature

X50/51 67N/67W

/6450N/51N

67/67N

51V 46 4937P/37N

27/59

59N 47 50BF

CTS

VTS 79 25

YN 49SR

Fault records Disturbance Record

Measurements

PSL

Local Communication

2nd Remote comm. port

Remote comm. port

LEDs

Self monitoring

81U/81O/81R

X50/51 67N/67W

/6450N/51N

67/67N

51V 46 4937P/37N

27/59

59N 47 50BF

CTS

VTS 79 25

YN 49SR

Fault records Disturbance Record

Measurements

PSL

Local Communication

2nd Remote comm. port

Remote comm. port

Feeder management P14x

LEDs

BinaryInput / output

always available

optional

Vref

V

I

IE sen

Self monitoring

81U/81O/81R

Y

IEC61850

Figure 2a: Typical parallel transformer application

P14151P51N67P67N

64N274750BF

M

P143

51P51N4946

50BFBC7925

Typical applications of P14x

(Description of ANSI code nos. see Protection Function Overview)FUNCTIONAL OVERVIEW

4>5

SENSITIVE EARTH FAULT

A core balance CT should be used to drive thesensitive earth fault function. The directionality of thesensitive earth fault element is provided by the residualvoltage.

WATTMETRIC

As an alternative to the directional earthfaultcharacteristic a directional II cosφ characteristic can beused for Petersen coil earth fault protection using thesensitive earth fault input. A directional II sin φcharacteristic is also available for protection ofinsulated feeders.

BLOCKED OVER CURRENT

Each stage of overcurrent and earth fault protectioncan be blocked by an optically isolated input. Thisenables overcurrent and earth fault protection tointegrate into a blocked overcurrent busbar protectionscheme.

COLD LOAD PICK-UP LOGIC

Cold load pick-up temporarily raises the overcurrentsettings following closure of the circuit breaker,allowing the protection settings to be set closer tothe load profile.

RESTRICTED EARTH FAULT

The restricted earth fault protection provided forprotection of transformer winding against earth faultsmay be configured as either high impedance or lowimpedance biased differential.

PHASE OVERCURRENT

Six independent stages are available for each phaseovercurrent element. Each stage may be selected asnon-directional or directional (forward/reverse). Allstages have definite time delayed characteristics, threeof the stages may also be independently set to one of ten IDMT curves (IEC and IEEE).

The IDMT stages have a programmable reset timer forgrading electro-mechanical, to reduce autoreclosedead times and to reduce clearance times whereintermittent faults occur.

The phase fault directional elements are internallypolarised by quadrature phase-phase voltages, and willmake a correct directional decision down to:0.5V (Vn = 100 - 120V) or2.0V (Vn = 380 - 480V).A synchronous polarising signal is maintained for 3.2safter voltage collapse to ensure that the instantaneousand time delayed overcurrent elements operatecorrectly for close-up three phase faults.

STANDARD EARTH FAULT

There are two standard earth fault elements, each withfour independent stages.

> The first element operates from measuredquantities:- Earth fault current which is directly measured

using a separate CT, or- Residual connection of the three line CTs

> The second standard earth fault element operates from a residual current that is derived internally from the summation of the three phase currents.

All earth fault elements have the same directionalityand IDMT characteristics as the phase overcurrentelement. Both earth fault elements may be enabledat the same time providing directional earth faultprotection and back-up standby earth fault protection inthe same device. The directionality of the earth faultelements is provided by either residual voltage ornegative sequence voltage.

Features carefully designed to protect any type of system

DIFFI

BIASIs2I

s1IK1

K2

Operate

Restrain

K1 0% to 20%

K2 0% to 150%

s1I 0.08 to 1. 0In

s2I 0.10 to 1. 5In

REF biased differential characteristics

IEC Standard inverse t = TMS x

IEC Very inverse t = TMS x

IEC Extremely inverse t = TMS x

UK Long time inverse t = TMS x

IEEE Moderately inverse

t = TD x

IEEE Very inverse

IEEE Extremely inverse

US CO8 Inverse

US CO2 Short timeinverse

t = TD x

t = TD x

t = TD x

t = TD x

0.14

(IIs -1)0.02

13.5

(IIs -1)

80

(IIs -1)2

120

(IIs -1)

0.0515

(IIs -1)0.02 + 0.114

19.61

(IIs -1)2 + 0.491

28.2

(IIs -1)2 + 0.1217

5.95

(IIs -1)2 + 0.18

0.16758

(IIs -1)0.02 + 0.11858

IEEE/US curves

TD = 7

IEC/UK curves

TMS = 1

TD 0.5 to 15TMS 0.025 to 1.2

IEEE MIIEEE VI

IEEE EIUS CO8

US CO2

100101

Current (Multiples of Is)

0.1

1

10

100

Ope

ratin

gtim

e (s

)

UK LTI

IEC SI

IEC VI

IEC EI

1000

100

10

1

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Current (Multiples of Is)

Ope

ratin

gtim

e (s

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Rectifier Curve t = TMS x45900

(IIs -1)5.6

RECT

Choice of IDMT characteristics

2nd HARMONIC BLOCKING

The 2ND Harmonic Blocking detects high inrush currentinflows that occur when transformers or machines areconnected. The function will block the Phase overcurrent, Earth fault, Sensitive Earth fault and Negativesequence over current.

VOLTAGE CONTROLLED OVERCURRENT

Voltage controlled overcurrent provides back-upprotection for remote phase faults whilst remaininginsensitive to load.

NEGATIVE SEQUENCE OVERCURRENT

Negative sequence overcurrent protection can be set aseither non-directional or directional (forward/reverse),and can operate for remote phase-phase and phaseearth faults even with delta-star transformerspresent.

RMS THERMAL OVERLOAD

Thermal overload protection provides both alarm andtrip stages. The thermal element may be set with eithera single time constant characteristic for the protection ofcables or dry transformers, or a dual time constantcharacteristic to protect oil filled transformers. In theevent of loss of auxiliary supply, the thermal state isstored in non-volatile memory.

UNDER/OVERVOLTAGE & RATEOF CHANGE OF VOLTAGE

Under/over voltage protection may be configured tooperate from either phase-phase or phase-neutralquantities. Two independent stages with definite timeelements are available, one of the stages can also beconfigured to an inverse characteristic. Two stages ofrate of change of voltage protection elements are alsoavailable, which are independently settable.

RESIDUAL OVERVOLTAGE

Residual overvoltage protection is available fordetecting earth faults in high impedance earthed orisolated systems. The neutral voltage is derived fromthe three phase voltage inputs. Two independentmeasuring elements with definite time characteristicsare available, one of the elements can also beconfigured to have an inverse characteristic.

FREQUENCY

Nine stages each of over frequency, under frequency,rate of change of frequency, frequency supervised rateof change of frequency, average rate of change offrequency, frequency based load shedding duringsevere system disturbances.

BROKEN CONDUCTOR

The broken conductor protection detects unbalancedconditions caused by broken conductors, maloperationof single phase of switchgear or by single phasingconditions. It operates on the ratio of I2 to I1.

PHASE SEGREGATED POWER

Two stages of power protection are provided and eachstage can be independently configured to operate asOver power or Under Power and Forward or Reversedirection. The relays provide a standard 3 phase powerprotection element and also a single phase powerprotection element.

SENSITIVE POWER

Two stages of sensitive power protection are providedand these can be independently selected as reversepower, over power, low forward power or disableddepending upon the operating condition.

VOLTAGE TRANSFORMERSUPERVISION

Voltage transformer supervision is provided to detectloss of one, two or three VT signals, providing indicationand inhibition of voltage dependent protection elements.An optically isolated input may also be configured toinitiate the voltage transformer supervision alarm andblocking when used with MCBs or other external formsof voltage transformer supervision.

CURRENT TRANSFORMERSUPERVISION

Current transformer supervision is provided to detectloss of phase CT signals and inhibit the operation ofcurrent dependent protection elements.

PROGRAMMABLE SCHEMELOGIC

Programmable scheme logic allows the user to customize theprotection and control functions. It is also used to programmethe functionality of the optically isolated inputs, relay outputs andLED indications. The programmable scheme logic comprises ofgate logic and general purpose timers. The gate logic includesOR, AND and majority gate functions, with the ability to invertthe inputs and outputs, and provide feedback. Theprogrammable scheme logic is configured using the graphicalMiCOM S1 Studio PC based support software.

Programmable scheme logic editor (MiCOM S1 Studio)

6>7

CIRCUIT BREAKER FAILUREPROTECTION

Two stage circuit breaker failure protection may be usedfor tripping upstream circuit breakers and re-tripping ofthe local circuit breaker if required. The circuit breakerfailure logic may also be initiated externally from otherprotection devices if required.

CIRCUIT BREAKER CONTROL

Circuit breaker control is available from the front paneluser interface, optically isolated inputs and remotely viathe substation communications.

AUTORECLOSE WITH CHECKSYNCHRONISING

The P142 and P143 provide three-pole multi-shotautoreclose. The user may select a single, two, three orfour shot autoreclose cycle, with independently settabledead times and reclaim time. Autoreclose can beinitiated from the internal protection elements or fromexternal protection via an opto input. Advancedfeatures include live line working and sequence co-ordination (co-ordination with downstream reclosingequipment). The P143 also includes checksynchronisation.

MEASUREMENT AND RECORDING FACILITIES

The P14x series is capable of measuring and storingthe values of a wide range of quantities. All events, faultand disturbance records are time tagged to aresolution of 1ms using an internal real time clock. Anoptional IRIG-B port is also provided for accurate timesynchronization. A lithium battery provides backup forthe real time clock and all records in the event ofauxiliary supply failure. This battery is supervised andeasily replaced from the front of the relay.

MEASUREMENTS

The measurements provided, which may be viewed inprimary or secondary values, can be accessed by theback-lit liquid crystal display, or the communicationsports. A wide range of instantaneous and integratedparameters are available. The list includes measuredsignals like phase currents and voltages and computedsignals like Power, frequency, energy, etc. Phasecurrents and phase to neutral voltages are available intrue rms and fundamental quantities. Phase notation isuser definable using the MiCOM S1 text editor.

FAULT LOCATION

A fault location algorithm provides distance to fault inmiles, kilometres, ohms or percentage of line length

EVENT RECORDS

Up to 512 time-tagged event records are stored inbattery backed memory, and can be extracted using thecommunication ports or viewed on the front paneldisplay.

DISTURBANCE RECORDS

The internal disturbance recorder has 8 analoguechannels, 32 digital and 1 time channel.Approximately 50 records of 0.5 s duration can bestored. All channels and the trigger source are userconfigurable. Disturbance records can be extractedfrom the relay via the remote communications andsaved in the COMTRADE format. These records maybe examined using MiCOM S1 or any suitable softwareprogram.

TRIP CIRCUIT SUPERVISION

Supervision of the trip circuit in both circuit breakeropen and closed states can be realised using theoptically isolated inputs and programmable schemelogic.

Disturbance recordviewed in

MiCOM S1 Studio

FAULT RECORDS

Records of the last 5 faults are stored in batterybacked memory. The information provided in the faultrecord includes:

> Indication of faulted phase> Protection operation> Active setting group> Date and time> Fault location> Relay and CB operating time> Currents, voltages and frequency

CIRCUIT BREAKER CONDITIONMONITORING

The circuit breaker condition monitoring featuresinclude:

> Monitoring the number of breaker trip operations> Recording the sum of the broken current quantity

ΣIx, 1,0 ≤ x ≤ 2,0> Monitoring the breaker operating time> Fault frequency counter

LOCAL AND REMOTE COMMUNICATIONS

Two communication ports are available as standard; arear port providing remote communications and a frontport providing local communications.

The front RS232 port has been designed for use withMiCOM S1, which fully supports functions within therelay by providing the ability to programme the settingsoff-line, configure the programmable scheme logic,extract and view event, disturbance and fault records,view the measurement information dynamically andperform control functions.

The default remote communications are based onRS485 voltage levels. Any of the protocols listed belowcan be chosen at the time of ordering.

> Courier / K-bus> Modbus> IEC60870-5-103 (optic interface also available)> DNP 3.0> IEC 61850 (over 100 Mbit/s fiber/copper Ethernet)

IEC 61850 is available when the optional Ethernet portis ordered. IEC 61850 offers high-speed dataexchange, peer-to-peer communication, reporting,disturbance record extraction and timesynchronization. Redundant Ethernet is available in various options(Self healing ring, RSTP and Dual homing star). P14xhas 128 virtual inputs with an improved GOOSEperformance.

An optional second rear courier port is available whichmay be configured as RS232, RS485 or K-Bus.

DIAGNOSTICS

Automatic tests performed including power-ondiagnostics and continuous self-monitoring ensure ahigh degree of reliability. The results of the self-testfunctions are stored in battery backed memory. Testfeatures available on the user interface provideexamination of input quantities, states of the digitalinputs and relay outputs. A local monitor port providesdigital outputs, selected from a prescribed list ofsignals, including the status of protection elements.These test signals can also be viewed using thecommunication ports and front panel user interface.

HARDWARE

All models within the MiCOM P14x series include:

> A back-lit liquid crystal display> 12 LEDs (8 programmable)> An optional IRIG-B port> An RS232 port & an RS485 port> An optional RS232/RS485/K-Bus port> An optional ethernet port for IEC 61850 protocol> A download/monitor port> A battery (supervised)> N/O and N/C watchdog contacts> Supervised +48V field voltage> 1A/5A dual rated CTs

Expansion cards are available to increase the numberof digital inputs and outputs for the P142 and P143.Also, depending on the relay model, up to eight HighSpeed-Hi Break contacts are available as an option.This will protect against burnt contacts due to a stuckbreaker or defective breaker auxiliary contactconditions.

The optically isolated inputs are independent and maybe powered from the +48V field voltage. The relayoutputs may be configured as latching or self reset. All CT connections have integral shorting.

P14x provides up-to-date versatile communication options.

MODEM MODEM

COMM2Remote access by protection engineer

PCLocal access byprotection engineer

COMM1SCADA / substation control interface

Information Interfaces

HMIFull access to allsettings, signals andmeasurands

Different communication interfaces of P14x

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AREVA T&D Worldwide Contact Centre:http://www.areva-td.com/contactcentre/Tel.: +44 (0) 1785 250 070

www.areva-td.comwww.areva-td.com/protectionrelays

AREVA DEVICE TRACK RECORD

>> KCGG/KCEG - First numerical overcurrent relay launched 1993and sold over 20 000 units..

>> MODN launched in 1998 with over 2000 units delivered

>> P14x MiCOM series introduced in 1999.Worldwide application, with over 10000 units delivered.

>> Introduction of phase II hardware of MiCOM P14x in 2002.

>> Addition of UCA2 protocol and ethernet port in 2004

>> Addition of IEC 61850 protocol in 2006

Our policy is one of continuous development. Accordingly thedesign of our products may change at any time. Whilst everyeffort is made to produce up to date literature, this brochureshould only be regarded as a guide and is intended forinformation purposes only. Its contents do not constitute an offerfor sale or advise on the application of any product referred to init. We cannot be held responsible for any reliance on anydecisions taken on its contents without specific advice.