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Shenzhen Guodian Xuzhen Electric Technology Co., Ltd.

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TEL:400-698-3738
Shenzhen Guodian Xuzhen Electric Technology Co., Ltd. Address:
龙岗区龙城街道五联瓦窑东路26号安能泰工业园
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Microcomputer intelligent excitation controller
产品型号： GDX-D4

It is applicable to low-voltage brush generator sets with excitation voltage below 300V, excitation current below 500A and generator voltage of 400V.
It is applicable to the supporting integration of host control equipment manufacturers and automation enterprises, and the transformation of exci...

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Features
◆ automatically track the grid voltage after the generator is connected to the grid;
◆ automatically operate according to the set power factor value after grid connection;
◆ after tripping, the voltage will automatically return to the set value to prevent overvoltage;
◆ automatically identify the shutdown process and conduct de excitation control;
◆ when "single machine operation" or "independent small power grid" operation, it will automatically operate according to the set voltage, which can keep the generator voltage constant;
◆ parameters can be set especially for units with unstable excitation operation;
◆ automatically reduce excitation in case of generator overcurrent to prevent generator overcurrent;
◆ set value password protection to prevent parameters from being modified by irrelevant personnel.
◆ equipped with upper computer communication interface to realize computer control (optional)
technical parameter
◆ gdx-4 is applicable to excitation systems with excitation transformer connection methods of Y / Y-12, Y / y0-12, △ / Y-1, etc.
◆ the wiring form of the main rectifier circuit is three-phase half controlled common anode full wave rectifier circuit (or Y / Y0 three-phase zero rectifier circuit).
Input signal:
◆ current: series generator stator c-phase current transformer, rated current: 5A.
◆ voltage: the three-phase four wire voltage of the generator is 400V / 230V, and the three-phase voltage is connected in positive phase sequence. The grid line voltage is 400V for phase A and phase B.
◆ grid connection identification: auxiliary contact of generator outlet circuit breaker: normally open contact.
◆ output signal:
◆ three phase thyristor trigger pulse signal of common anode.
◆ the build-up excitation output voltage +, - are respectively connected to the positive and negative poles of the excitation output circuit.
◆ ambient temperature: - 10 ° C ～ + 50 ° C   Altitude: below 2500 meters
Overall dimension: (height) 120 mm × (width) 260 mm × (depth) 210mm
Opening size: (length) 262 mm × (height) 122 mm see outline drawing
Case show
  • Automatic power generation control system for hydropower station
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    Automatic power generation control system for hydropower station

  • Automatic power generation control system for hydropower station
    enlarge

    Automatic power generation control system for hydropower station

  • Automatic power generation control system for hydropower station
    enlarge

    Automatic power generation control system for hydropower station

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