S10 Power Elements; Power Measurement Conventions - GE 469 Manual

4.11 S10 POWER ELEMENTS

4.11 S10 POWER ELEMENTS
By convention, an induction motor consumes Watts and vars. This condition is displayed on the 469 as +Watts
and +vars. A synchronous motor can consume Watts and vars or consume Watts and generate vars. These
conditions are displayed on the 469 as +Watts, +vars, and +Watts, –vars respectively (see the figure below).
4
4-66
Figure 4–19: POWER MEASUREMENT CONVENTIONS
469 Motor Management Relay
4 SETPOINT PROGRAMMING

4.11.1 POWER MEASUREMENT CONVENTIONS

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I 2
^
I 3
^
I 1
^
I 4
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