9492600990 28-3
DECS-150 Specifications
Terminal Assignments
Watchdog ......................................... WD1, WD2, WD3
Relay Output 1 ................................. OC1, OC1
Relay Output 2 ................................. OC2, OC2
Breaker Shunt Trip Output ............... ST+, ST–
Field Power Output
Continuous Rating ............................ 7 Adc (70°C ambient) or 10 Adc (55°C ambient)
Terminals.......................................... F+, F−
Minimum 10-Second Forcing Output Rating
120 Vac Input ................................... 100 Vdc, 11 Adc
240 Vac Input ................................... 200 Vdc, 11 Adc
Minimum Field Resistance
63 Vdc Application ........................... 9 Ω
125 Vdc Application ......................... 18 Ω
Regulation
In regulation modes that rely upon the monitoring of the generator terminal voltage and current, the
DECS-150 senses and responds to the measured rms quantities.
FCR Operating Mode
Setpoint Range ................................ 0 to 7 Adc (70°C ambient) or 0 to 10 Adc (55°C ambient) in 0.1 Adc
increments
Regulation Accuracy ........................ ±5.0%
AVR Operating Mode
Setpoint Range ................................ 70 to 120% of rated machine voltage, in increments of 0.1%
Regulation Accuracy ........................ ±0.25% over load range at rated PF with constant machine
frequency and ambient temperature
Steady-State Stability ....................... ±0.25% at rated PF with constant machine frequency and ambient
temperature
Temperature Drift ............................. ±0.5% between 0 and 40°C at constant load and machine frequency
Var Operating Mode
Setpoint Range ................................ −100% (leading) to +100% (lagging) of the machine nominal
apparent power in increments of 0.1%
Regulation Accuracy ........................ ±2.0% of the nominal machine apparent power rating at the rated
machine frequency
Power Factor Operating Mode
Setpoint Range ................................ 0.5 to 1.0 (lagging) and −0.5 to −1.0 (leading), in increments of 0.01
Regulation Accuracy ........................ ±0.02 PF of the PF setpoint for the real power between 10 and 100%
at the rated frequency
Parallel Compensation
Modes Reactive Droop, Line Drop, and Reactive Differential (Cross-Current)
Cross-Current Input Burden ............. Can exceed 1 VA if external resistors are added to the CT circuit for
cross-current compensation
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