Automatic Voltage Regulator (AVR) | Cummins-Stamford AVR| AS440
The AS440, which replaces the SX440 and SA465, is a half-wave phase-controlled thyristor type Automatic Voltage Regulator. It is an essential component of the excitation system for brushless generators. Alongside its primary function of regulating generator voltage, the AVR circuitry incorporates under speed and sensing loss protection features, ensuring secure and dependable control of the generator.
Features:
- Generator voltage regulation.
- Overvoltage protection.
- Low speed protection.
- Voltage range adjustable.
- High voltage stability.
- Single phase dedicated.
- 50HZ 60HZ adjustable.
Specification:
- Voltage 120 (95-132) / 240 (190-264) VAC single-phase two-wire
- Magnetic field output: maximum 90VDC at 207VAC input
- Current: 4A continuous, 10A in 10 seconds without discontinuity
- Pressure regulation accuracy: <+-1% RMS (with generator speed variation within 4%)
