Wiring Diagrams - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

3.2 TYPICAL WIRING 3 INSTALLATION

3.2.3 WIRING DIAGRAMS

3
Figure 3–7: TYPICAL WIRING FOR TWO WINDING TRANSFORMER
Since the relay only takes one voltage input, the power and VAR metering is not accurate for unbalanced conditions. In addition,
depending on which winding the voltage transformer is on, the power flows and VARs displayed may be opposite in direction to
the actual system flow; e.g. in the case of a generator step-up transformer, depending on the relay winding assignments and
NOTE
which side of the transformer the VT is connected to, the power may be negative when the generator is producing positive
MWatts. This can be corrected by reversing the voltage input into C11 and C12.
3-6 745 Transformer Management Relay GE Multilin
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