National State Xu vibration high voltage generator three-phase SCR control bridge excitation controller

I. Overview

The GDF-Series Microcomputer Excitation Controller only needs one button to start, and it can realize full automatic excitation control and unattended operation!

The GDF-5 Excitation Controller is a new version of the 2014 high-voltage excitation controller that corrects older software and hardware issues. The new version of the controller uses software synchronization, which is suitable for almost all kinds of thyristor control circuits of the excitation transformer, and it also relaxes the requirements for voltage transformer connection.

The main special features:

1, excitation control circuit debugging function;

    2. Automatic voltage recovery function to prevent overvoltage;

3. Automatically identify the shutdown process and perform adjustable de-excitation control;

    4, the generator voltage constant function

    5, "independent small grid operation" function, through software settings can achieve this function, suitable for the factory's own combination of small power grid diesel generators parallel operation.

6, 50HZ or 60HZ operating frequency adaptation function.

    7, prevent generator over-current function;

Second, technical parameters

1.   The scope of application of GDF-5 :

â–² 6300V or 10500V high voltage generator excitation control system.

â–²Applicable to any excitation transformer, including Y / â–³ -11, â–³ / Y -11, Y / Y-12, etc.

â–² wiring form the main rectifier circuit is: a three-phase half-controlled thyristor bridge rectifier circuit common cathode (the three-phase full-controlled thyristor bridge rectifier circuit to be made)

2. Input signal:

â–² Current: Series C stator current transformer, Rated current: 5A.

â–² Voltage: The three-phase PT voltage of the generator is 100V. The three-phase voltage is connected in positive phase sequence .

Power grid A, B phase PT voltage 100V.

â–² Grid identification: Auxiliary contact of generator outlet circuit breaker: normally open contact.

3. Controller output: common cathode three-phase thyristor trigger pulse signal.

4 Ambient temperature:. -10 ° C ~ + 50 ° C   Altitude: 2500 meters below area

5. Dimensions: a controller (H) 146 mm × (width) 260 mm × (depth) 2 40mm

6. Opening size: ( Length) 264 mm × (H) 1 2 4 mm See outline drawing (All GDF series are the same)