Shenzhen Guodian Xuzhen Electric Technology Co., Ltd.

Product

product demand

We can customize according to your needs, please fill in the form below.

Why Customize?

You only need to fill in your needs, purposes, we will provide personalized customization.

contact us

You can also contact us in the following ways

support hotline:
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
Intelligent brush excitation controller
产品型号: GDX-83

The GDX-80/83 intelligent excitation regulator developed by our company is specially designed for the operation of single unit of hydraulic turbine generator and diesel generator or the operation of multiple units in parallel and grid connection. Exciting transformers (brushed motors) suit...

sales network
Please select the address closest to you, and we will find the nearest dealer for you to serve you!
Province
Features

When running with load, it can run in three excitation modes: constant power factor, constant voltage, and constant excitation.
empty V/FGiven characteristics, it can stand by at low speed for a long time to ensure that the excitation current will not be too large.
In constant voltage mode, the reactive power adjustment can be set to ensure the parallel operation of multiple machines The reactive power distribution is stable and balanced.
Grid-connected constant power factor operation function, no matter whether the load is added or subtracted, there is no need to manually adjust the excitation in the whole process.
The detection current has the same name termination reverse alarm function.
Load-shedding automatic voltage regulation function, no need to manually adjust the excitation when tripping with load.
No-load automatic tracking grid voltage function, which can ensure the smooth input of grid connection.
No-load over-voltage or over-frequency automatic de-excitation, and the value can be set.
No load low frequency(Adjustable)De-excitation function, no need to manually turn off the excitation during shutdown.
Strong excitation, over excitation, under excitation limit function, the size can be set.
Chinese LCD display function, which can display grid voltage, generator voltage, current, frequency, power Factor, percentage value of excitation voltage.
Full Chinese setting menu, simple and clear, parameters can be debugged without manual

x;">3Hz.


◆ parameters07, the excitation frequency setting, the setting range is 37 span>47HZ, the setting precision is 1HZ, the factory setting is span>42HZ. This parameter is used to set the rotational speed (frequency) of the generator at start-up in fully automatic control.

◆ parameters08, speed pulse width setting, the setting range is 0.1S ~1.5S, the setting precision is 0.05S, it is used in conjunction with parameter 9, variable coefficient adjustment. The factory setting is 0.3S.

◆ parameter 09, speed control interval setting, the setting range is 1.5S ~12.5S, the setting precision is 0.05S, the factory setting is 5 S. It is related to parameters 8, parameters10Use together, the total adjustment period= Speed regulation pulse width + speed regulation interval.

◆ parameters10, the deceleration pulse width setting, the setting range is 0.1S~1.5 S, set the precision to 0.05S, it is used in conjunction with parameter 9, variable coefficient adjustment. The factory setting is 0.3S.

◆ parameters11, overvoltage value setting, its meaning is the ratio of overvoltage value to rated voltage, the setting range is 11013 0%. The factory setting is 120%. The generator is the same as the grid voltage overvoltage setting. In addition, for the grid voltage, there are undervoltage settings, which we specify as70%.

◆ parameters12, debugging parameters, generator voltage measurement correction, it is used to correct the manufacturing error of generator voltage measurement circuit, users generally cannot enter this parameter.

◆ parameters13, debugging parameters, grid voltage measurement correction, it is used to correct the manufacturing error of the grid voltage measurement circuit. Also users cannot enter.

  Parameters14, debugging parameters, generator current measurement correction, it It is used to correct the manufacturing error of the generator current measurement circuit, and users generally cannot enter this parameter.

Power:   AC: 110V~280V/50Hz,DC: 110V~250V< /span>

◆Input Signal:

Generator standard voltage:0V100V+30V (or 0V< span style="font-size:18px;">400V+120V)

Grid standard voltage:  0V100V+30V (or 0V 400V+120V)

Note that the standard voltages are taken from the same-named phases of the voltage transformers on both sides of the object being synchronized. Choose 100V when using standard voltage transformer, and choose 400V when using 380V line voltage directly. In additionparameters0Must be modified accordingly.

◆Output signal:

The six switch signals of acceleration, deceleration, excitation, energy storage, synchronous closing and fault tripping are output in relay mode.

The contact capacity is AC resistive220V/5A; AC resistive 380V/2A; DC 110V/ 0.8A, DC 220V/0.2A.


technical parameter

◆Scope of application: All kinds of medium and small generators.  
◆Input Signal
◆Measured voltage: generator voltageAC0-600V(High voltage generator can be customizedAC0-150V ).  
Grid voltageAC0-600V(The high-voltage generator can be customizedAC0-150V) (stand-alone operation is not catch).  
◆Adjustment current: connect to nominalAC5A on the secondary side of the current transformer (and current out of phase with the generator measurement voltage).  
Excitation power supply (brushless): ratedAC200-240V. (beyond the scope needs to be customized).  
Sync voltage (with brush): ratedAC380V. (beyond the scope needs to be customized).  
◆Grid-connected signal(Close feedback): use the main switch closing signal (normally open or normally closed, which can be set).  
◆Brushless excitation rated output: voltage20160V; the current does not exceed 10A, the maximum excitation current does not exceed20A. (outside the scope needs to be customized)

Case show
  • 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

  • Automatic power generation control system for hydropower station
    enlarge

    Automatic power generation control system for hydropower station