CHAPTER 6: SETPOINTS S2 SYSTEM SETUP
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–33
MAGNITUDE, PHASE ANGLE, AND ZERO SEQUENCE COMPENSATION
Transformer magnitude, phase angle, and zero-sequence compensation calculations
Complete magnitude, phase angle, and zero sequence compensation is as follows:
Winding 1 compensated currents:
Winding 2 compensated currents:
where:
- magnitude, phase and zero sequence compensated winding w phase currents
- magnitude compensation factor for winding 2 (see previous sections)
240° lag
270° lag
300° lag
330° lag
Φ
COMP
[W] GROUNDING[W] = "NOT WITHIN ZONE" GROUNDING[W] = "WITHIN ZONE"
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