R449

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    R438

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    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.
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    SE350

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    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.
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    The digital voltage regulator is a control unit that regulates the output voltage of a brushless AC generator by controlling the current into the generator exciter field. It is a highly sensitive component and vital to the general operation of a generator or AC alternator. Input power to the automatic voltage regulator is derived from a single-phase permanent magnet generator (PMG).
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    SX460 AVR – Automatic Voltage Regulator – Exact Generic Replacement INPUT: Voltage: Jumper selectable 95-132V ac or 190-264V ac, Frequency: 50-60 Hz nominal, Phase: 1 OUTPUT: Voltage: Max 90V dc at 207V ac input, Current: Continuous 4 A dc, Intermittent 6 A for 10 secs, Resistance: 15 ohms minimum Regulation: +/-1.0% * Thermal drift: 0.05% per deg. C change in AVR ambient Unit power dissipation: 10 watts maximum – Build up voltage：4 Volts @ AVR terminals
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