Setting McGraw-Edison Type 6H, V6H Reclosers

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.

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Application Notes on Setting McGraw-Edison Type 6H, V6H Reclosers

I. Recloser Models

This is a summary of the data a CAPE user must provide for the McGraw-Edison Type 6Hand V6H recloser.

Typical STYLE used in CAPE is as follows:

Style Properties

6H#KH6100 General purpose style for a 100 Amp Type 6H McGraw-Edisonreclosers. Similar styles can be easily developed for other recloserratings.

For details of the recloser, refer to the description in the McGraw-Edison Publication 280-10.

II. Recloser Elements

The recloser contains only phase overcurrent elements, with separate settings possible forquick and delayed trip.

Element Description

Phase TCC1 Phase operation – quick trip

Phase TCC2 Phase operation – delayed trip

III. Overcurrent Timing Curves

There are only three timing curves available for Type 4H and 6H reclosers, which areincluded in the text tap ranges named “Type4H Crv. A” and “Type4H Crv. B,C”. Thefollowing table lists the curves included:

Curve ID Description

A Fast trip curve for Type 4H and 6H reclosers of all sizes

B Standard delayed trip curve for Type 4H and 6H reclosers of all sizes

C Alternate delayed trip curve for Type 4H and 6H reclosers of all sizes

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. Note that theMinimum Trip is not a setting – rather, it is a data field associated with the specificrecloser switchgear. For this example style (6H#KH6100), the Minimum Trip Rating is 200amperes.

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Tap Name Internal Name Tap DescriptionsFast Trip Curve PHS_TCC1_ID Type4H Crv. A

Delay Trip Curve PHS_TCC2_ID Type4H Crv. B,C

Number of Fast Operations 0 – 4

Number of Delayed Operations 0 – 4

Ground Fault Lockout GND_LO_MIN_TRIP 5 – 200 A, None

Ground Fault Lockout Delay GND_LO_DELAY 3 – 11 sec

Reclosing Time RECL_INTERVAL 1.1 sec

Non-Reclosing Feature NO_RECLOSE Enabled/Disabled

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 the elementsettings.

VI. Contact Logic

Suggested contact logic codes:

Element Contact Logic CodePhase TCC1 PHS_TCC1

Phase TCC2 PHS_TCC2

If there are duplicates from other reclosers in the same LZOP, you may add the prefix"TYPE6H_" , e.g. "TYPE6H_PHS_TCC1".

The LZOP LOGIC (e.g. TYPE6H_TRIP) for all elements is

PHS_TCC1 OR PHS_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 only the delayed trip element,the expression would be:

PHS_TCC2