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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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Overcurrent and overvoltage protector
产品型号： GDB-1

It is suitable for the protection of high and low voltage generators and switch cabinets. It is suitable for the integration of host control equipment manufacturers and automation enterprises to form a device for safe operation of the power system. With overvoltage, low pressure, overcurrent (overlo...

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Features
◆ With high-end microcontroller as the core, high precision, stability and reliability;
◆ Centralized control, simple wiring and easy installation;
◆ Replaces the traditional multiple relay protection mode;
◆ With over-voltage, low-voltage, over-current (overload) protection functions;
◆ Inverse time control for overcurrent protection;
◆ The parameters can be modified in real time for special generators; all parameters are password protected;
◆ Fault indicator, buzzer alarm, four-digit digital display three-dimensional fault judgment.
technical parameter
◆Input Signal:
(1) PT voltage:
     a. Nominal 100V generator PT (voltage transformer) voltage
     b. Nominal 230V generator phase voltage
     c. Nominal 400V generator line voltage
(2) Three-phase current:          
     Nominal 5A generator three-phase CT (current transformer) current signal
    (note that the end of the same name is on the same side, CT linear range: 0-7A
◆Output signal:     
    Relay on and off signal (with two ways of normally open and normally closed)
    Relay contact capacity: AC 220V/5A 380V/2A
    DC 110V/0.8A 220V/0.2A
◆Voltage measurement accuracy: no less than ±1%
◆Current measurement accuracy: no less than ±1%
◆Working power supply: AC 150V～360V DC 220V
◆Power consumption: less than 6W
◆Working environment   Ambient temperature: -5℃～＋45℃
  Relative humidity: not more than 90% (40℃) below 2500 meters above sea level
◆Installation size: (L) 114×(W) 114 (D) 108mm (see installation diagram)
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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