01Multifunction IEDs

MiCOM P43x range provides the complete solution for

distance protection and switchgear control by using one

common platform. Starting from stand-alone distance

protection up to multifunctional One-Box feeder management

solutions, including specific operation and control automatism

like synchronizing, 2pole bay control and direct switchgear

control.

The broad spectrum of protection functions enables the

user to cover a wide range of applications in the protection

of cables and overhead lines in solidly-, low-impedance-,

resonant-grounded or isolated network systems.

Individual customizing allows the user to optimize the

configuration in view to find best technical solution by

optimized investment costs. Together with the high hardware

robustness, excellent reliability and guaranteed long live

time bring customers the confidence to get exactly the right

solution with selecting MiCOM P43x.

The intuitive user interface and the various communication

interfaces allow fast comprehensive parameter setting as well

as reading from extensive recordings. Numerous integrated

communication protocols provide interfacing to almost any

kind of substation control or SCADA system.

Furthermore the integrated InterMiCOM protection interface

provides direct end-to-end communication between two

protection devices.

The flat compact case of the P430C and the 19’’ modular

case variants of the P433/P435/P437/P439 with a variable

number of plug-in modules provide a flexible solution for

easy integration of the devices into the substation. Both case

variants are available for flush mounting and wall-surface

mounting.

MiCOM P43xDistance Protection and Switchgear Control

Customer Benefits•Standardized functionality for all

MiCOM P43x•1A/5A software setting•Function keys for easy maintenance

and operation•High availability and reliability with

redundant communication facilities• Integrated 2pole and direct motor

drive control for switchgears• Integrated protection communication

interface•Best adaptation to varying system

conditions by providing four setting groups

•Proven long years operation experience

MiCOM P439 - One box distance & control

MiCOM P433 - P435 - P437 - Tailored distance protection

MiCOM P430C - Compact distance protection

02Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

Application

Distance protection and control units MiCOM P43x provide a wide range of protection and control functions. The integrated protection func-tions reflect the different requirements in medium and high-voltage power system. The preferred applications are as follows:

• P430C: MV systems with 3pole tripping only, low protection requirements

• P433: MV systems with 3pole tripping only• P435: MV - HV systems with 1/3pole trip• P437: HV - EHV systems with 1/3pole trip • P439: MV systems with 3pole tripping only.The integrated switchgear control capabilities cover the requirements of medium voltage bays:• P433 and P435: basic control of up to 3

devices• P439: enhanced control of up to 6 (10)

devices, incl. graphic bay type display.

Further options are provided for various protection and control requirements for example increasing the number of switchgear units from 3 to 10 for control and monitoring and selection of automatic synchronism check.

Global functions

Following global functions are available in all devices:

• Parameter subset selection (4 setting groups)

• Metering

• Operating data recording

• Overload recording

• Ground fault recording

• Fault recording of all CT/VT inputs and binary signals

Functional Overview (Description of ANSI code nos. see Function Overview)

Self Monitoring

LGCILOCK

Communication 16SCOMM1

16SCOMM2

16EIEC

52DEV

CLKIRIGB

CMD_1SIG_126

MEASI MEASO Distance Protection and Bay Control MiCOM P439

Always availableOptional

conventionalserial

Scheme signaling77

InterMiCOM

LIMIT

Control and Monitoring

of 3 switchgear units(max. 6(10))

Metering

Ground flt . rec.

Fault rec .

Recordingand Data Acquisition

Overload rec .

50/51 P,Q,NDTOC

51/67 P,Q,NIDMTMCMON

85-21PSIG

50/27SOTF TGFD

LGCLOGIC , LOG_2

51 P,NBUOC

21DIST

68PSB

25ASC

79ARC

I

V

Vref

CBM

67WGFDSS

85-67WGFSIG GFTRP

32P<>

49THERM

27/59 P,Q,NV<>

81 O/Uf<>

COUNT

50BF/62CBF

to SCADA / substation control / RTU / modem ...via RS485 or Fiber opticsusing IEC 60870 -5-101 , -103, Modbus , DNP3, Courier

resp.via RJ45 or Fiber optics using IEC 61850 (single or redundant Ethernet )

DM

1011

33E

N

Simple function selection by Mouseclick

EM

1000

38E

N

03Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

Main functions

Main functions are autonomous function groups and can be individually configured or disabled to suit a particular application. To improve user friendliness and clarity only activated function groups can be customized, all other parameter are not visible.

That permits an extensive scope of functions and universal application of the device in a single design version, while at the same time providing for a clear and straight-forward setting procedure and adaptation to the protection and control tasks under consideration.

ANSI IEC 61850 Group Function P430C P433 P435 P439 P43721 DisPDISn DIST Distance protection

Overcurrent starting, undervoltage startingUnderimpedance starting with adjustable load blindingPolygonal-/ or circular tripping-characteristicSix distance zones, one zone for special applicationsEight timer stages, including two backup stagesDirectional voltage memory

68 RPSB1 PSB Power swing blocking and out-of-step tripping

30/74 AlmGGIO1 MCMON Measuring circuit monitoring, incl. Broken Conductor (BC)

50TD P/N

DtpPhs-/DtpEftPTOCx BUOC Backup overcurrent protection

50/27 SofPhs-/ SofEftPSOF1 SOTF Switch onto fault protection

85-21 PsgPhsPSCH1 PSIG Protective signaling

79 RREC1 ARC Auto-reclosure control 3-pole 3-pole 1/3-pole 3-pole 1/3-pole25 RSYN1 ASC Automatic synchronism check ( ) ( ) ( ) ( )67N GfsResPTOC1/-PTOV1/-

DIR1GFSC Ground fault short circuit protection

85-67N PsgGfsPSCH1 GFCSG Ground fault short circuit protection signalling

67W/YN PSDE1 GFDSS Ground fault direction determination ( wattmetric )

GFTRP Ground fault tripping

85-67W PsgGfdPSCH1 GFSIG Ground fault protection signaling

PTEF1 TGFD Transient ground fault direction determination ( ) ( ) ( )50TD P/Q/N

DtpPhs-/DtpEft-/DtpNg-sPTOCx

DTOC Definite-time o/c protection, four stages, max. phase/ negative-sequence/ neutral or residual OC, directional neutral OC

51P/Q/N ItpPhs-/ItpEft-/ TtpNg-sPTOCx

IDMT Inverse-time o/c protection, single-stage, max. phase/ negative-sequence/ neutral or residual OC

49 ThmPTTR1 THERM Thermal overload protection

27/59/47 P/Q/N

VtpPhs-/VtpNgs-/tpPss-/Vtpres-/VtpRefPTyVx

V<> Over/ Undervoltage protection

81 FrqPTyFx f<> Over- / Underfrequency protection

32 PdpAct-/PdpRealPDyPx P<> Directional power protection

50/62BF RBRFx CBF Circuit breaker failure protection ( )

LIMIT Limit value monitoring

LGC PloGGIOx LOGIC Programmable logic, incl. Trip Circuit Supervision (TCS)

CT / VT inputs

Phase and neutral currentsPhase and neutral voltagesSync-check reference voltageParallel line neutral current for mutual coupling comp.

3 + 13

3 + 13 + 1(1)

3 + 13 + 1(1)

3 + 13 + 1(1)

3 + 13 + 1(1)(1)

Binary I/O

INPOUTP

Optical coupler inputsOutput relays ( incl. optional high break outputs )

2 4 … 448 … 30 (4)

4 … 568 … 46 (4)

10 … 4614 … 26 (4)

4 … 208 … 30 (4)

F_KEY Function keys 4 6 6 5 626 RtdGGIO1

IdcGGIO1MEASI/MEASO

1 x RTD input1x Measuring data input 20 mA2 x Measuring data output 20 mA

( )( )( )

( )( )( )

( )( )( )

( )( )( )

LLN0.SGCB PSS Parameter subset selection

PTRCx/ RDRE1 FT_RC Fault recording

52

LGC

XCBRx, XSWIx,CSWIx DEVxxCMD_1SIG_1ILOCK

Control and monitoring of switchgear unitsSingle-pole commandsSingle-pole signalsInterlocking logic

( 3 )(12)(12)( )

( 3 )(12)(12)( )

3 (6)2640

COUNT Binary counters 4 4 416S COMMx 2 Communication interfaces, serial, RS 422/485 or FO ( ) ( ) ( ) ( ) ( )CLK IRIGB Time synchronisation IRIG-B ( ) ( ) ( ) ( ) ( )16E

GosGGIOx

IEC

GOOSE

Communication interface Ethernet, IEC 61850Redundant Ethernet interface ( RSTP, SHP, DHP )GOOSE Communication

( )( )( )

( )( )( )

( )( )( )

( )( )( )

COMM3 Protection communication interface InterMiCOM, serial, RS 422/485, RS 232 or FO

( ) ( ) ( ) ( ) ( )

= STANDARD; ( ) = ORDER OPTION

04Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

Distance protectionThe devices are equipped with elaborate fault detection elements that can be adapted to the individual application. They provide reliable fault detection and fault type determination even under difficult system conditions.The following criteria are continuously monitored:• Overcurrent (I>>)• Undervoltage (V<)• Underimpedance with load blinding (Z<)• Ground fault detection adaptable to system

grounding. All fault detection measurement elements operate simultaneously.Inrush stabilization and fuse failure monitoring (VT circuit supervision) are integrated.A well proven voltage memory eliminates all problems with directional determination in case of small fault voltage, CVT transients or in series compensated lines applications. Six distance zones can be set in total. Each zone can be set as forward, backward or non-directional to suit requirements. Zone 1 extension is provided and controlled by integrated functions such as auto-reclosing control or protective signaling or by an external signal. Special zone 4 is provided, to allow auto-reclosing only on the overhead-line section in cable/line systems or to compensate the bundle conductor effect. P437 could optionally be equipped with an additional CT input to measure the residual current of a parallel line to provide mutual coupling compensation.

Power Swing Blocking / Out-of-Step TrippingPower swings between generators due to severe load variations or system faults may cause measured impedances to enter distance zones. To avoid incorrect tripping, the devices measure the rated change of power to implement blocking for the duration of the swing. In case of short-circuits during a power swing, the blocking is disabled immediately to allow distance elements to operate.Alternatively an out-of-step tripping feature can be activated which operates either on fast power change or upon detection of instable swings.

Tripping Characteristics

n: 1 .... 6

Zn

X

R

45° n

Fault Detection Characteristics

XfWX

ZfW,PPZ

fW,PG

Z fW

Z r

70°Load area

R

Rfw, PP Rfw, PG

Underimpedance detection Circular tripping characteristic

MiCOM P43x for rapid and selective fault clearance in your power system

R

X

1

2

Z (t)+R

1: stable power swing2: instable power swing (out-of-step condition)

-R

posX

negX

R

X

+Roos

posXtrip

-Roos

negXtrip

Power swing detection characteristic Out-of-step tripping characteristic

Rn, PG

X

R

Rn, PP45°

1

n

Xn

n: 1 ... 6

I/I nom0 1I> I>>

1

0,5

V<

V

Vnom / 3

Load area

Overcurrent and undervoltage detection Polygonal tripping characteristic

Power swing Characteristics

DM

1011

42E

ND

M10

1143

EN

DM

1011

44E

NE

M10

1145

EN

EM

1011

47E

N

EM

1011

48E

N

05Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

Ground-Fault ProtectionFor the determination of the ground-fault direction in isolated or Peterson-coil compensated power systems two proven methods are provided:• Wattmetric method (analysis of steady-state

signals), with signaling scheme and trip logic;

• Transient method (optional).

A highly sensitive zero-sequence power directional protection is integrated as back-up protection for high-resistance ground short-circuits in low impedance grounded systems. In order to achieve high-speed tripping, the function is provided with a supplementary ground fault (short-circuit) protection signaling logic with release (permissive) or blocking scheme.This scheme logic can be set up in parallel and independently from the distance scheme logic.

Overcurrent ProtectionVarious multi-stage, partly directional OC elements, with instantaneous or timed operation are provided for complementary protection schemes

Switch on to Fault ProtectionClosing of a circuit breaker might inadvertently lead to a short-circuit fault due to a maintenance ground clamp not yet removed, for example. ‘Switch on to fault protection’ provides an instantaneous protective tripping during a settable time, after a manual close command has been issued.

Protective Signalling

The distance reach is usually set to values below 100 % line length so as to avoid overlapping with adjacent substations. Teleprotection scheme logic extends the reach of protection to 100 % by a logic operation on the signals received from the remote substation.Protective signaling can be operated using one of the standard schemes:• Direct Transfer Trip (DTT) • Permissive Underreaching Transfer Trip (PUTT) • Zone Extension• Permissive Overreaching Transfer Trip (POTT) • Blocking Scheme (incl. DC loop) • Reverse Interlocking (busbar protection)

With P437 phase-selective signal transmission is possible.Where required, additional features as weak infeed trip and echo logic, transient blocking and deblocking can be activated.

Protection Communication Interface InterMiCOMOptional InterMiCOM allows high performance permissive and blocking type unit protection to be configured, plus transfer of any digital status information between line ends. Intertripping is supported too, with channel health monitoring and cyclic redundancy checks (CRC) on the received data for maximum message security. InterMiCOM provides eight end-to-end signal bits, assignable to any function within a MiCOM relay’s programmable logic. Default failsafe states can be set in case of channel outage.

InterMiCOM interface connection

1

2

3

N

G

CG

1

2

3

G

N

1

2

3

G

N

1

2

3

N

G

isolated starpoint

Petersen-coil compensated

Low impedance earthed/grounded

effectively earthed/grounded

non-effectivelyearthed/grounded

Ground -fault direction determination Ground -short -circuit direction protection

Power system grounding

EM

1011

47E

N

06Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

Switchgear Control functionsThe control functions are designed for the control of up to ten electrically operated switchgear units equipped with electrical check-back signaling located in the bay of a medium- or high voltage substation.External auxiliary devices are largely obviated through the integration of binary inputs and power outputs that are independent of auxiliary voltages, by the direct connection option for current and voltage transformers and by the comprehensive interlocking capability.P439 is provided with over 250 predefined bay types (P433/P435 ~ 80). These include the assignment of binary inputs and outputs for the switchgear unit control and monitoring and the interlocking logic. Predefined IEC standard descriptions for switchgear devices and busbars can be simply modified by setting if there is any need to adapt to customer specification. New customized bay types can be created with the separate tool Bay Type Configurator (BTC) tool and downloaded to the device.The P43x issues switching command outputs with the integration of switching readiness and permissibility tests; subsequently the devices monitor the intermediate position times of the switchgear units. If a switchgear malfunction is detected, this fact will be indicated (e.g. by an appropriately configured LED indicator). Optional high break output contacts allow direct control of motor operated HV/ MV primary switchgears as disconnectors or earthing switches. With this integrated solution external motor power relays could be fully replaced. Minimizing required dimension of the low voltage compartment of metal clad switchgear panels and improving the installation costs and quality by reduction of external components and manual work are two of the advantages here.The acquisition of further binary inputs is in the form of single-pole operating signals; they are processed in accordance with their significance for the substation (circuit breaker readiness, for example). In addition to the switching command output, a triggering of binary outputs by single-pole commands is possible.

Automatic synchronism checkThis option can be used in conjunction with automatic or manual (re)closure and the close command of the optional control function. In non-radial networks this ensures that reclosure will proceed only if the voltage and synchronism conditions are met.

Auto-reclosing controlAuto-reclosing control (ARC) operates in single- or three-phase mode, depending on the device tripping capability. ARC cycles with one high-speed reclosing (HSR) and up to nine subsequent time-delay reclosings (TDR) may be configured by the user.

Binary counterFor the acquisition of binary counts, four binary inputs may be configured. In the event of loss of operating voltage, the counts are stored.

Bay type creation with BTC

Proven control, advanced communication, complete local control, comfortable data handling

Bay type display on local HMI

Bay type selection by setting

07Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

MODEM MODEM

COMM2Remote access

PC Local access

COMM1 or IEC 61850 SCADA / Substation control interface

HMI - Local control ofswitchgear units.Full access to all settings,signals and measurements

Information Interfaces

Information interfaces

Information exchange is done via the local control panel, the PC interface and two optional communication interfaces. The first communication interface has settable protocols conforming to IEC 60870-5-103/ -101, DNP 3.0, Modbus and Courier or provides alternatively protocol conforming to IEC 61850 (Redundant) and is intended for integration with substation control systems. The 2nd communication interface (COMM2) conforms to IEC 60870-5-103 and is intended for central settings or remote access. Clock synchronization can be achieved using one of the protocols or using the IRIG-B signal input.

Function keys

The function keys provide an easy local control of processes or functions by the user. A single function can be assigned to each function key that allows manually opening and closing of the CB, enabling and disabling of functions, a quick navigation with the selected menu jump list or a reset of stored information. For each function key, the user can define an operating mode suitable to the assigned functionality. To guard against inadvertent or unauthorized use each function key is protected with a password.

Local Control and Graphic Display

From the Local Control Panel all data required for operation of the protection and control unit could be entered, the data important for system management are read out and the local control of switchgear units is executed.

With the help of the Display Panels, the user is able to carry out a quick and up-to-date check of the state of the bay.On the Bay Panel the selected bay is displayed as a single-pole equivalent network (single line diagram) with the updated switchgear states. Moreover, ancillary information are displayed. Up to 28 status signals are displayed on the Signal Panels which are activated automatically upon status changes. Moreover, presentation modes for the display of status data and status change information can be selected. Selected measured values are displayed on the Measured Value Panels. The type of measured values shown (such as measured operating data or measured fault values) will depend on the prevailing conditions in the substation.The Event Panel displays the most recent events with time-tagging such as the opening of a switchgear unit.

Signal Panel(s) Event PanelBay Panel(s)

Control and Display Panels

Measured Value Panel(s)(depending on system condition)

Menu Tree (settings/operation/events)

Record view

Events 17:58:54

20.04.9805:21:32.331

23:58:17.501CB closed sig. EXTEnd21.04.98

ARC

MAIN

EnabledStart

05:21:32.331 DEV01Switch.device closedStart

20.04.98

Signals 17:58:44P439 Page H 17:58:34Signals 17:58:44

Signals 17:58:44P439 Page B 17:58:34Signals 17:58:44MAIN :M.C.B. trip V EXTPSS :PS 1 activePSS :PS 2 activeMAIN :Bay interlock. act.MAIN :Subst. interl. act.

P439 Page A 17:58:34

Fault panel 17:58:44Ground-fault 17:58:44

Overload panel 17:58:44Meas. values 17:58:44

Voltage A-B prim. 20.7 kVVoltage B-C prim. 20.6 kVVoltage C-A prim. 20.8 kVCurrent A prim. 416 ACurrent B prim. 415 ACurrent C prim. 417 A

BB 1BB2

LockedRemote

1088 A Curr. IP,max prim.

Q

Q

0

8

Q1 Q2

Oper/Rec/OP_RCOperat. data record

Local control with graphica HMI

EM

1011

49E

N

EM

1011

50E

N

08

07-2013NRJED111086EN

Multifunction IEDs MiCOM P430C, P433, P435, P437, P439

© 2

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As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

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Device Track Record50.000 distance protections PDxxx and MiCOM P43x got installed until 2011.

● 1991: First numerical distance protection PD 551 launched

● 1998: First distance one-box solution PD 932 launched.

● 1999: MiCOM P437 distance protection launched

● 2001: Transfer of PD 932 into MiCOM P439 with extended functionality

● 2002: Completion of MiCOM P43x range

● 2006: Implementation of IEC 61850 communication protocol and detachable local HMI

● 2008: Control functions integrated into P433/P435,

HMI with 6 configurable function keys

● 2012: Redundant Ethernet interface for IEC 61850