Yueqing Hecheng Electrical Co., Ltd.
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  • Contact Person : Mr. Zheng David
  • Company Name : Yueqing Hecheng Electrical Co., Ltd.
  • Tel : 86-577-80221899
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  • Address : Zhejiang,Yueqing,Wenzhou Bridge Industrial Zone
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AVR For Siemens 1FC6 Generator

AVR For Siemens 1FC6 Generator
Product Detailed
AVR 6GA2 490-0A( For 1FC4, 1FC5 series); AVR 6GA2 491-1A(For 1FC6 series); AVR 6GA2 492-1A(For 1FC6 series more than 200KW)

AVR (Automatic Voltage Regulator) for Siemens generators (1FC4, 1FC5 series & 1FC6 series that made by Siemens, WEMP, FXEM China or HYUNDAI Korea).

Type 6GA2 490-0A( For 1FC4, 1FC5 series); Type 6GA2 491-1A( For 1FC6 series); Type 6GA2 492-1A( For 1FC6 series more than 200KW );

And we provide All kinds of genuine parts for Siemens marine generators (1FC4, 1FC5series&1FC6 series).

Thyristor voltage regulator A thyristor voltage regulator was fitted so as to upgrade the ± 5% voltage tolerance previously achieved to ± 0.5%. The regulator in question is a pure voltage regulator, which uses the excitation current to keep the generator voltage constant irrespective of the load.  The generator voltage is fed via the measuring circuit transformer to the regulator and rectified by a load-side rectifier bridge. The actual value signal and regulator input voltage are derived from this DC voltage. The voltage setpoint is input via an internal reference value potentiometer or external reference value setter. After an internal setpoint/ actual value comparison, the regulator amplifier outputs a DC voltage, which is converted by a loadside pulse generator into a firing pulse with adjustable time offset for the bypass thyristor.  The bypass thyristor Vabs is situated in the excitation circuit between one phase and the anode-side output of the rectifier bridge in series with the bypass resistor Rabs (Fig. 4). The bypass circuit, parallel to excitation winding RE, is switched on in the time ranges at which valve V5 is conductive. Part of the excitation current can therefore be made to bypass the excitation winding. This takes place within every period for a fraction of that period (control angle). The excitation current is reduced in accordance with the control angle and the resistance ratio Rabs/ RE.

 

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AVR For Siemens 1FC6 Generator



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