GE SPM Series Instruction Manual

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GE SPM Series Instruction Manual Manual pdf 66 page image

5- 10SPM Synchronous Motor Protection & Control GE Power Management5.3 OPTIONAL POWER FACTOR REGULATION SETPOINTS 5 SETPOINTS55.3 OPTIONAL POWER FACTOR REGULATION SETPOINTS 5.3.1 DESCRIPTIONThe following parameters can be adjusted while the motor is running. See Section 7.5, Regulator Tune UpInstructions.5.3.2 POWER FACTOR REGULATORFUNCTION:The SPM is capable of providing a Closed-loop PF Regulator with a very fast response. The regulator may beset 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 inorder to output the floor value (see FLOOR VOLTS parameter) by entering OFF. This enables the operator to setup base-field amperes, then the regulator power factor may be returned to its normal setting and the regulatorwill function normally.MOTOR TYPE:Collector-Ring5.3.3 REGULATOR GAINFUNCTION:Adjust this setpoint for optimum regulator performance.MOTOR TYPE:Collector-Ring5.3.4 STABILITYFUNCTION:This setpoint determines the number of most recent regulator output calculations to be averaged in order tohelp compensate for instability. Regulator calculations are performed once every 100 milliseconds.MOTOR TYPE:Collector-RingNOTE:This eliminates the need for an external RC lag compensation network.REG PF: 0.00ENTER to modifyRange: –0.90 to 1.00, OFFStep: 0.01REG GAIN: 0.00ENTER to modifyRange: 1 to 100Step: 1STABILITY: 1 cycENTER to modifyRange: 1 to 60 cyclesStep: 1