R438 Diesel Genset AVR
- publish： 2019-07-25 15:45 Browse：
- Type： R438
- Product Summary：
The R438 AVR is powered by two auxiliary windings which are self-sufficient of the voltage match circuit, the first winding has a voltage in proportion to that of the alternator(characteristic shunt), the second has a voltage in proportion to the stator current(compound characteristic: booster effect). The power supply voltage is rectified and filtered before being used by the AVR monitoring transistor. This principle ensures that regulation is no...
Product description:
R438 is a half-wave phase controlled thyristor type AVR，for a brushless generator. The AVR circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. Which is linked with the main stator windings （分行点）and the exciter field windings to offer closed loop control of the output voltage with load regulations of +/- 1.5%.
Main features:
1、Suitable for high levels of vibration and harsh environments
2、Stand overload current:8A-10s
3、Phase to phase voltage sensing
4、Standard power supply: AREP or PMG
Specifiction:
Voltage Regulation +/- 0.5%
Short circuit capability: 3 x Irated for 10 seconds
Voltage sensing:
95~140 volts (50/60 Hz) or
170~260 volts (50/60 Hz) or
340~520 volts (50/60 Hz)
Remote voltage adjustment range of :+/-5%
Fit for:
1000 series generator,2000 series generator and 3000 series generator.
