Commutation Switch-Type Three-Phase Imbalance Governance Device

At present, there are a large number of single-phase, asymmetric, nonlinear and impact loads in the low-voltage distribution network system. The three-phase load system changes randomly. These loads will cause three-phase imbalance in the distribution system. The three-phase load imbalance will lead to the imbalance of three-phase voltage and current in the power supply system, causing negative sequence voltage and negative sequence current of the power grid, affecting the power supply quality, thus increasing line loss and reducing the power supply reliability. The commutation switch type three-phase load imbalance automatic adjustment device is a product specially developed for the above problems. It provides a perfect solution for solving the three-phase load imbalance in the distribution network. It is suitable for 380V/220V low-voltage distribution system of three-phase four-wire system. It can automatically and intelligently adjust the three-phase load with load without interrupting the power supply of users, thus overcoming the disadvantage of traditional manual line change to adjust the three-phase imbalance. And different from the compensation leveling methods such as SVG and interphase capacitors, HIEC HX realizes true three-phase balance from the "load side. The application of the automatic adjustment device for three-phase load imbalance in the distribution network will greatly improve the operation stability and intelligence of the distribution network, effectively reduce the transformer loss and line loss caused by the three-phase load imbalance, and solve the potential safety problems such as terminal low voltage and single-phase overcurrent caused by the three-phase load imbalance, which can play a good supporting role in the requirements of the power grid company for building a strong smart grid and improve the operation reliability of the low-voltage distribution network.

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Power Quality Management Products on the Distribution Network Side

Product Description

- Commodity name: Commutation Switch-Type Three-Phase Imbalance Governance Device
At present, there are a large number of single-phase, asymmetric, nonlinear and impact loads in the low-voltage distribution network system. The three-phase load system changes randomly. These loads will cause three-phase imbalance in the distribution system. The three-phase load imbalance will lead to the imbalance of three-phase voltage and current in the power supply system, causing negative sequence voltage and negative sequence current of the power grid, affecting the power supply quality, thus increasing line loss and reducing the power supply reliability. The commutation switch type three-phase load imbalance automatic adjustment device is a product specially developed for the above problems. It provides a perfect solution for solving the three-phase load imbalance in the distribution network. It is suitable for 380V/220V low-voltage distribution system of three-phase four-wire system. It can automatically and intelligently adjust the three-phase load with load without interrupting the power supply of users, thus overcoming the disadvantage of traditional manual line change to adjust the three-phase imbalance. And different from the compensation leveling methods such as SVG and interphase capacitors, HIEC HX realizes true three-phase balance from the "load side. The application of the automatic adjustment device for three-phase load imbalance in the distribution network will greatly improve the operation stability and intelligence of the distribution network, effectively reduce the transformer loss and line loss caused by the three-phase load imbalance, and solve the potential safety problems such as terminal low voltage and single-phase overcurrent caused by the three-phase load imbalance, which can play a good supporting role in the requirements of the power grid company for building a strong smart grid and improve the operation reliability of the low-voltage distribution network.

product features

1, performance features
commutation time is less than 20ms, without interruption of user power supply; After adjustment, the current imbalance is reduced to less than 15%.

2, real-time data acquisition
real-time monitoring of three-phase voltage, current, active, reactive, frequency, power factor and the end of the line phase voltage, current and other operating parameters.
Real-time monitoring of line imbalance rate, commutation switch operation status and other data, and record the line adjustment before and after the imbalance rate of the contrast data.
Data records can be displayed and recorded on the device, and can also be uploaded to the remote background system as needed.

3, convenient human-computer interaction
Chinese large-screen LCD display, which can query the running status and data information of the device on the spot, and modify the running parameters of the device through key operation.
has WIFI communication capability, and can conveniently set and view the device through mobile APP.

4, outdoor high protection design and installation
outdoor protection level up to IP54, can adapt to different outdoor load environment installation requirements.

, zero line live alarm function
commutation switch has zero line live monitoring function; The commutation host detection system can give an alarm in real time and quickly locate the range of zero line live fault points.

6, reduce system loss
make the transformer in a symmetrical operation state, effectively reducing the transformer loss.
Reduce the unbalanced current of the neutral line, effectively reduce the loss of the neutral line and the phase line.

7, solve the voltage problem, protect the safe operation of low voltage distribution network
solve the low voltage problem caused by three-phase imbalance, and avoid the normal operation of electrical equipment affected by low voltage.
to avoid the neutral line current long-term excessive heat and old loss, to avoid the transformer and other power distribution equipment burned hidden dangers.