Technical Specifications Generator and busbar voltage sensing: 120–480 V AC, 50/60 Hz; phase matching window: ±3° to ±15° field-adjustable; frequency slip range: 0.05–1.0 Hz adjustable; output: 1 SPDT sync-permit relay, 5 A at 250 V AC; auxiliary output: 4–20 mA frequency bias to governor; supply voltage: 24 V DC ±10%; operating temperature: -20 °C to +70 °C; enclosure rating: IP40; accuracy: ±0.5° phase, ±0.03 Hz frequency.
Functional Features Automatic voltage, frequency and phase matching; proportional frequency bias output to engine governor; adjustable phase and frequency windows; dead bus detection logic; breaker time compensation; sync-in-progress and sync-ok status indication.
Application Scenarios Standby generator grid paralleling, multi-generator industrial power plants, emergency backup generation systems, small cogeneration facilities, engine-generator set control panels.
Performance Parameters Phase matching accuracy: ±0.5° at rated voltage; frequency matching accuracy: ±0.03 Hz; synchronization cycle time: 3–10 cycles typical; relay operate time: < 15 ms; voltage sensing accuracy: ±0.25% full scale.
Material Composition Flame-retardant ABS housing, precision voltage sensing transformers, microprocessor control circuit, electromechanical output relay, tin-plated copper terminal blocks.
Structural Characteristics Panel mount rectangular enclosure; front panel status LEDs and adjustment potentiometers; rear screw terminal block for all wiring; mounting ears for panel fixation.
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