Technical Specifications Generator voltage sensing: 120–480 V AC, 50/60 Hz; excitation output: 0–8 A DC continuous; control supply: 24 V DC ±10%; voltage regulation accuracy: ±1% of setpoint (steady state); excitation current limit: adjustable 2–8 A; under-frequency roll-off: adjustable 45–55 Hz; operating temperature: -20 °C to +70 °C; enclosure: IP40; control topology: analog PID.
Functional Features Continuous static excitation control; adjustable voltage setpoint, gain and stability; over-excitation current limiting; under-frequency voltage reduction (UFR); parallel droop compensation for multi-generator operation; loss-of-sensing over-excitation protection.
Application Scenarios Small industrial generator voltage regulation, standby generator excitation control, off-grid power systems, diesel gen-set voltage control, small hydro generator excitation.
Performance Parameters Steady-state voltage regulation: ±1%; transient voltage deviation: < ±5% for 50% load step; recovery time: < 300 ms; output ripple: < 5% of output voltage.
Material Composition Sheet steel enclosure, analog control circuit board, bipolar power semiconductor rectifiers, voltage sensing transformers, insulated power terminals.
Structural Characteristics Panel mount enclosure; front accessible potentiometers for setpoint, gain, stability and current limit; rear terminal block for power, sensing and excitation wiring; mounting ears for panel fixation.
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