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
Microcomputer integrated protector
产品型号: GDB-2

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.

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Features

◆With high-end microcontroller as the core,High precision, stability and reliability;                                 b>

◆Centralized control, simple wiring, easy installation;

◆Replaces the traditional multiple relay protection mode;

◆With over-voltage, low-voltage, over-current and overload protection functions;

◆It has the functions of speeding, high and low frequency, and short circuit protection;

◆Inverse time control is adopted for the protection of overcurrent, overload and short circuit;

◆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.

Digital displayGenerator voltage, current, frequency.

technical parameter

Applicable scope: All kinds of medium and small high-voltage and low-voltage generator sets

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: nominal5A generator three-phase CT (current transformer) current signal

Output signal: Relay switch signal (normally open)

      Contact Capacity:AC380V /3A  AC220V/5A  DC110V/0.8A  DC220V/0.2A 


a. Fault output (for disconnecting grid-connected switch)

b. Flying protection output (used to control governor deceleration or "water bypass")

◆ Voltage measurement accuracy:±1%

◆ Current measurement accuracy:±2%

frequencymeasurement accuracy:±0.01%

Working power : AC 150V~360V   DC 200V~250V

Power consumption : less than 6W

◆ Work Environment
       
Ambient temperature:-5℃~+45 °C
       
Relative Humidity: not more than 90% ( 40℃)
       
ElevationArea below 2500 meters
    ◆
Dimensions: (long)< span style="font-size:18px;">120×(W) 120×(D) 120mm

    ◆. Hole size: 114×114 (113×113)

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