Spinlab Bird Dog Plus 5000 - Page 94

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5000 MV ONLY!
F.3.1.6 Form 9 Meters: 4 Wire Wye or 4 Wire Delta—The Form 9 meter has 3
current coils and 3 stators. It is a CT rated meter. It will require 3 tests to determine the
accuracy of the meter. The hookup is as follows:
Automatic Phase Rotation Test—Voltage Cable Hookup:
o Red alligator clip—Phase A
o White alligator clip—Neutral
o Black alligator clip—Phase C on the lug above the switch & leave
there for the entire test
Test 1: Test Phase A
Short out CT on phases B & C
Secondary Voltage Cable
o Red alligator clip to phase A
o White alligator clip to neutral. This produces V
AN.
o Black alligator clip to phase C on the lug above the switch & leave
there for the entire test
Secondary Current Cable—Duckbill connector copper side up phase A (I
A
).
Test 2: Test Phase B
Short out CT on phases A & C
Secondary Voltage Cable
o Red alligator clip to phase B
o White alligator clip to neutral. This produces V
BN.
o Black alligator clip to phase C on the lug above the switch & leave there for
the entire test
Secondary Current Cable—Duckbill connector copper side up phase B (I
B
).
Test 3: Test Phase C
Short out CT on phases A & B
Secondary Voltage Cable
o Red alligator clip to phase C
o White alligator clip to neutral. This produces V
CN.
o Black alligator clip to phase C on the lug above the switch & leave there for
the entire test
Secondary Current Cable—Duckbill connector copper side up phase C (I
C
).