Setting McGraw-Edison KFE ReclosersIn the

Computer-Aided Protection Engineering System(CAPE)

Prepared for

CAPE Users' Group

July 2000

Electrocon International, Inc. Georgia Power Company

Ann Arbor, Michigan Atlanta, Georgia

This document is the sole property of Electrocon International, Inc. and is provided to the CAPE UsersGroup for its own use only. It may not be supplied to any third party, or copied or reproduced in anyform, without the express written permission of Electrocon International, Inc. All copies andreproductions shall be the property of Electrocon International, Inc. and must bear this ownershipstatement in its entirety.

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Application Notes on Setting McGraw-Edison KFE Recloser Controllers

I. Recloser Models

This is a summary of the data a CAPE user must provide for the McGraw-Edison KFE reclosercontroller.

Typical STYLE used in CAPE is as follows:

Style Properties

KFE#KKFE General purpose controller style for model KFE, suitable for all McGraw-Edison KFE reclosers designed to be used with an electronic controller.

For details of the recloser, refer to the description in the McGraw-Edison Publication KFE10001-E.

II. Recloser Elements

The recloser contains phase and ground overcurrent elements, with separate settings possible for quickand delayed trip.

Element Description

Ground TCC1 Ground operation – quick trip

Ground TCC2 Ground operation – delayed trip

Phase TCC1 Phase operation – quick trip

Phase TCC2 Phase operation – delayed trip

III. Overcurrent Timing Curves

There are a number of timing curves available, all of which are included in the text tap ranges named“KFE Curves (GR)” and “KFE Curves (PH)”. The following table lists the curves included:

CurveID Description Curve ID Description

INV-1 KFE Curves (GR) CNST-6 KFE Curves (GR)

INV-2 KFE Curves (GR) CNST-7 KFE Curves (GR)

INV-3 KFE Curves (GR) CNST-8 KFE Curves (GR)

CNST-1 KFE Curves (GR) CNST-9 KFE Curves (GR)

CNST-2 KFE Curves (GR) A KFE Curves (PH)

CNST-3 KFE Curves (GR) B KFE Curves (PH)

CNST-4 KFE Curves (GR) C KFE Curves (PH)

CNST-5 KFE Curves (GR)

The curves CNST-1 through CNST-9 are definite time curves with fixed operating times of 0.1, 0.2, 0.5,1.0, 2.0, 3.0, 5.0, 10.0, and 20.0 seconds.

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IV. Recloser Taps

When placing a recloser, set the following taps. Only the settings with Internal Name shown in bold areactually used in the Program Model for this recloser.

Tap Name Internal Name Tap DescriptionsReclosing Interval 1 RECL_INTERVAL_1 2, 4 sec

Reclosing Interval 2 RECL_INTERVAL_2 2, 4 sec

Reclosing Interval 3 RECL_INTERVAL_3 2, 4 sec

TCC1 Curve ID - Gnd. GND_TCC1_ID KFE Curves (GR)

TCC1 Operations - Gnd. GND_TCC1_OPER 0 - 3

TCC2 Curve ID - Gnd. GND_TCC2_ID KFE Curves (GR)

TCC2 Operations - Gnd. GND_TCC2_OPER 0 - 4

TCC1 Curve ID - Phs. PHS_TCC1_ID KFE Curves (PH)

TCC1 Operations - Phs. PHS_TCC1_OPER 0 - 3

TCC2 Curve ID - Phs. PHS_TCC2_ID KFE Curves (PH)

TCC2 Operations - Phs. PHS_TCC2_OPER 0 - 4

Reset-Delay Time RESET_DELAY 90 sec

Ground Minimum Trip GND_MIN_TRIP 5 - 400 A

Phase Mininum Trip PHS_MIN_TRIP 10 - 800 A

Ground Instantaneous Multiple GND_INST_MULT 2,4,6,8, NONE

Ground Instantaneous Trip GND_INST_TRIP 1-2-3-4

Phase Instantaneous Multiple PHS_INST_MULT 2,4,6,8, NONE

Phase Instantaneous Trip PHS_INST_TRIP 1-2-3-4

Ground Instantaneous Lockout GND_INST_LO NONE

Phase Instantaneous Lockout PHS_INST_LO NONE

Low-Current Ground Trip LOW_CURR_GND_TRIP NONE

Minimum Response Time MIN_RESP_TIME NONE

Reclose Block RECLOSE_BLOCK NONE

Sequence Coordination SEQ_COORD NONE

Note that there are several text taps with a single value of “NONE”. These are not actual settings on theKFE reclosers but are included for compatibility with the Cooper Form 3A recloser model. Also, thesetting of “1-2-3-4” for phase and ground instantaneous trip implies that the phase and groundinstantaneous multiples values apply to all four possible operations.

V. Element Settings

On the element forms, set only the necessary contact logic codes; other settings are taken from thecommon taps. You can also change the settings from CAPE CG using the forms or usingDRAG_CURVE. The new common taps are computed automatically from the element settings.

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VI. Contact Logic

Suggested contact logic codes:

Element Contact Logic CodeGround TCC1 GND_TCC1

Ground TCC2 GND_TCC2

Phase TCC1 PHS_TCC1

Phase TCC2 PHS_TCC2

If there are duplicates from other reclosers in the same LZOP, you may add the prefix "KFE_" , e.g."KFE_GND_TCC1".

The LZOP LOGIC (e.g. KFE_TRIP) for all elements isPHS_TCC1 OR PHS_TCC2 OR GND_TCC1 OR GND_TCC2

To prevent an element from tripping the logical breakers in its local zone of protection (LZOP), omit itscontact-logic code from this expression. For ground elements alone, the expression would be:

GND_TCC1 OR GND_TCC2