GE SPM Series, Instruction Manual

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5-
10
SPM Synchronous Motor Protection & Control GE Power Management
5.3 OPTIONAL POWER FACTOR REGULATION SETPOINTS 5 SETPOINTS
5
5.3 OPTIONAL POWER FACTOR REGULATION SETPOINTS 5.3.1 DESCRIPTION
The following parameters can be adjusted while the motor is running. See Section 7.5, Regulator Tune Up
Instructions.
5.3.2 POWER FACTOR REGULATOR
FUNCTION:
The SPM is capable of providing a Closed-loop PF Regulator with a very fast response. The regulator may be
set up to regulate motor power factor in a range between 0.9 lagging to 1.0 (unity) to 0.0 leading power factor.
This setpoint determines at what power factor the regulator will operate. The regulator may be disabled in
order to output the floor value (see
FLOOR VOLTS
parameter) by entering OFF. This enables the operator to set
up base-field amperes, then the regulator power factor may be returned to its normal setting and the regulator
will function normally.
MOTOR TYPE:
Collector-Ring
5.3.3 REGULATOR GAIN
FUNCTION:
Adjust this setpoint for optimum regulator performance.
MOTOR TYPE:
Collector-Ring
5.3.4 STABILITY
FUNCTION:
This setpoint determines the number of most recent regulator output calculations to be averaged in order to
help compensate for instability. Regulator calculations are performed once every 100 milliseconds.
MOTOR TYPE:
Collector-Ring
NOTE:
This eliminates the need for an external RC lag compensation network.
REG PF: 0.00
ENTER to modify
Range: –0.90 to 1.00, OFF
Step: 0.01
REG GAIN: 0.00
ENTER to modify
Range: 1 to 100
Step: 1
STABILITY: 1 cyc
ENTER to modify
Range: 1 to 60 cycles
Step: 1