Setting Cooper Form3A Recloser Controllers

in the

Computer-Aided Protection Engineering System

(CAPE)

Prepared for

CAPE Users' Group

June 20-21, 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 theCAPE Users Group for its own use only. It may not be supplied to any third party, orcopied or reproduced in any form, without the express written permission of ElectroconInternational, Inc. All copies and reproductions shall be the property of ElectroconInternational, Inc. and must bear this ownership statement in its entirety.

Setting Cooper Form 3A Recloser 2000 Users’ Group Meeting

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Application Notes on Setting Cooper Form 3A Recloser Controllers

I. Recloser Models

This is a summary of the data a CAPE user must provide for the Cooper Power SystemsForm 3A recloser controller.

Typical STYLE used in CAPE is as follows:

Style Properties

Form 3A#KMEB General purpose controller style for model Form 3A, suitable forall Cooper or McGraw-Edison reclosers designed to be used withan electronic controller.

For details of the recloser, refer to the description in the Cooper Publication 280-75.

II. Recloser Elements

The recloser contains phase and ground overcurrent elements, with separate settingspossible for quick and 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 tapranges named “ME Curves (GR)” and “ME Curves (PH)”. The following table lists thecurves included:

Setting Cooper Form 3A Recloser 2000 Users’ Group Meeting

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CurveID Description

CurveID Description

1 ME Curves (GR) A ME Curves (PH)

2 ME Curves (GR) B ME Curves (PH)

3 ME Curves (GR) C ME Curves (PH)

4 ME Curves (GR) D ME Curves (PH)

5 ME Curves (GR) E ME Curves (PH)

6 ME Curves (GR) KP ME Curves (PH)

7 ME Curves (GR) L ME Curves (PH)

8* ME Curves (GR) M ME Curves (PH)

8 ME Curves (GR) N ME Curves (PH)

9 ME Curves (GR) P ME Curves (PH)

11 ME Curves (GR) R ME Curves (PH)

13 ME Curves (GR) T ME Curves (PH)

14 ME Curves (GR) V ME Curves (PH)

15 ME Curves (GR) W ME Curves (PH)

16 ME Curves (GR) Y ME Curves (PH)

18 ME Curves (GR) Z ME Curves (PH)

IV. Recloser Taps

When placing a recloser, set the following taps. Only the settings with Internal Nameshown in bold are actually used in the Program Model for this recloser.

Tap Name Internal Name Tap DescriptionsReclosing Interval 1 RECL_INTERVAL_1 1 – 60, INST

Reclosing Interval 2 RECL_INTERVAL_2 1 – 60, INST

Reclosing Interval 3 RECL_INTERVAL_3 1 – 60, INST

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

TCC1 Operations - Gnd. GND_TCC1_OPER 0 - 4

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

TCC2 Operations - Gnd. GND_TCC2_OPER 0 - 4

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

TCC1 Operations - Phs. PHS_TCC1_OPER 0 - 4

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

TCC2 Operations - Phs. PHS_TCC2_OPER 0 - 4

Reset-Delay Time RESET_DELAY 10,15,...,180 sec

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Ground Minimum Trip GND_MIN_TRIP 100,120,...,1120 A

Phase Mininum Trip PHS_MIN_TRIP 25,35,...,560 A

Ground Instantaneous Multiple GND_INST_MULT 1.4,2.0,...,5.6, NONE

Ground Instantaneous Trip GND_INST_TRIP 1 - 1-2-3-4

Phase Instantaneous Multiple PHS_INST_MULT 5.6,8.0,...,22.4, NONE

Phase Instantaneous Trip PHS_INST_TRIP 1 - 1-2-3-4

Ground Instantaneous Lockout GND_INST_LO 1.4,2.0,...,5.6, NONE

Phase Instantaneous Lockout PHS_INST_LO 5.6,8.0,...,22.4, NONE

Low-Current Ground Trip LOW_CURR_GND_TRIP 5.8/10 A, NONE

Minimum Response Time MIN_RESP_TIME 0.05-0.690 sec, NONE

Reclose Block RECLOSE_BLOCK Blk. Options

Sequence Coordination SEQ_COORD ON/OFF

V. Element Settings

On the element forms, set only the necessary contact logic codes; other settings are takenfrom the common taps. You can also change the settings from CAPE CG using the forms orusing DRAG_CURVE. The new common taps are computed automatically from theelement settings.

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"FORM3A_" , e.g. "FORM3A_GND_TCC1".

The LZOP LOGIC (e.g. FORM3A_TRIP) for all elements is

PHS_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 its contact-logic code from this expression. For ground elements alone, theexpression would be:

GND_TCC1 OR GND_TCC2