CHAPTER 6: ACTUAL VALUES
6.3.1.5 Zero-sequence Current
ZERO SEQUENCE []
6.3.1.6 Differential Current
DIFFERENTIAL [
6.3.1.7 Restraint Current
RESTRAINT
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
The negative-sequence current magnitudes and phase values for windings 1, 2, and 3 are
shown here.
PATH: ACTUAL VALUES
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The zero-sequence current magnitudes and phase values for windings 1, 2, and 3 are
shown here.
PATH: ACTUAL VALUES
]
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The differential current magnitudes and angles for phases A, B, and C are shown. The
differential current phase angles are referenced to winding 1 phase A current.
PATH: ACTUAL VALUES
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The restraint current magnitudes for phases A, B, and C are shown here.
A2 METERING
CURRENT
W1 ZERO SEQ CURRENT:
0 A at 0° Lag
W2 ZERO SEQ CURRENT:
0 A at 0° Lag
W3 ZERO SEQ CURRENT:
0 A at 0° Lag
A2 METERING
CURRENT
PHASE A DIFFERENTIAL
CURRENT: 0.00 x CT
PHASE A DIFFERENTIAL
ANGLE: 0° Lag
PHASE B DIFFERENTIAL
CURRENT: 0.00 x CT
PHASE B DIFFERENTIAL
ANGLE: 0° Lag
PHASE C DIFFERENTIAL
CURRENT: 0.00 x CT
PHASE C DIFFERENTIAL
ANGLE: 0° Lag
A2 METERING
CURRENT
PHASE A RESTRAINT
CURRENT: 0.00 x CT
PHASE B RESTRAINT
CURRENT: 0.00 x CT
PHASE C RESTRAINT
CURRENT: 0.00 x CT
A2 METERING
ZERO SEQUENCE
DIFFERENTIAL
RESTRAINT
6–9