Fcr and fvr mode, Var control mode, Power factor control mode – Basler Electric DECS-400 User Manual

Page 174: Metering accuracy, Power system stabilizer (pss), Traverse rates, Setpoint, Pre-position setpoint, Setpoint tracking, Delay

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9369700990 Rev R

Temperature Stability……………..

±0.5% between 0 and 50°C (32 and 122°F) at constant load and

frequency

Response Time ............................. <1 cycle

FCR and FVR Mode

Field Current/Voltage Regulation…

±1% of the nominal value for 10% of the rectifier bridge input voltage

change or 20% of the field resistance change

Var Control Mode

Reactive Power Regulation ...........

±2.0% of the nominal VA rating at rated frequency

Power Factor Control Mode

Power Factor Regulation ...............

±0.02%

Metering Accuracy

Generator and Bus Voltage...........

±1.0%

Generator and Bus Frequency ......

±0.1 Hz

Generator Line Current .................

±1.0%

Generator Power

Apparent Power (VA) ..............

±2.0%

Active Power (W) ....................

±2.0%

Reactive Power (var) ..............

±2.0%

Power Factor .................................

±0.02 PF

Field Current and Voltage .............

±2.0%

Aux. Voltage & Current Input ........

±1.0%

Power System Stabilizer (PSS)

Operating Mode ............................ Generator or Motor, ABC or ACB phase sequence
Sensing Configuration ................... Power and Speed or Speed only
Power Measurement ..................... Two-wattmeter method or three-wattmeter method
Frequency Range…………………. Responds to power oscillations from 0.1 to 5 Hz. Low-pass and high-

pass filtering prevents unwanted PSS action outside this range.

Traverse Rates

Setpoint

Setting Range ............................... 10 to 200 s
Setting Increment .......................... 1 s

Pre-Position Setpoint

Setting Range ............................... 1 to 720 s
Setting Increment .......................... 1 s

Setpoint Tracking

Delay

Range ............................................ 0 to 8.0 s
Increment ...................................... 0.1 s

Specifications

DECS-400

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