The MX321TM analogue, 3-phase sensing, permanent magnet generator (PMG) powered automatic voltage regulator (AVR) provides isolation from the effects of non-linear loads, improved motor starting performance and sustained short circuit current.
SE350 is a half-wave phase controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, 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.
LEROY SOMER R438 is used with AREP or PMG excitation on LSA42.3, LSA43.2, LSA44.3, LSA44.2 Leroy Somer models. For shunt application we recommend the R250 or R220 which will provide you the necessary regulation control. The R438 is among one of the oldest regulators but one of the best Leroy Somer has to offer. With its regulation of -/+1.0 the R438 can hold its voltage even in the worst industry load demand conditions.
The AS440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes underspeed and sensing loss protection to ensure safe, reliable control of the generator.
The voltage regulator type “MARK I”, is suitable for synchronous generators for Marelli make MJB series, size range 160-500 frames. The regulator is proper to operate on machines rated from 10 up to 2000kVA. The regulator is fully insulated in order to maintain high reliability also with severe ambient conditions (high level of humidity, dust, salt atmosphere), and in case of high vibrations level. The regulator is proper both for single and 3-phase operation.
The S.R.7 regulator is an advanced electronic regulator of small size and economical price, even if it is very reliable. This regulator is equipped with a low speed and overload protection with an adjustable intervention threshold, it works at 50/60 Hz, it has an adjustable voltage stability, and it offers the possibility for a remote voltage regulation.