Automatic Voltage Regulator For Generators

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Automatic Voltage Regulator For Generators

Automatic Voltage Regulator For Generators

GENERATOR AVR , KIRLOSKAR GENERATOR AVR

OVERLOAD PROTECTION
LOW PASS FILTER
OVER EXCITATION PROTECTION

Product description of Automatic Voltage Regulator For Generators.
AVR avr means automatic voltage regulator , this device is used for Generator to stabilise generator output voltage. the function and description is as follows.




A half wave phase controlled thyristor type AVR and forms part of the excitation system for a brushless generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR. Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR. The power and voltage sensing circuits have separate terminals, allowing the excitation power to be derived directly from the stator winding for basic applications or from an auxiliary winding if sustained short circuit performance is required. The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%. The AVR voltage sensing terminals continuously sample the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor, of the generator. A frequency measuring circuit continually monitors the generator output and provides under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point.





Price -2500/-

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