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Medium voltage dynamic reactive power compensation device

SDrHTC series high-voltage dynamic reactive power compensation devices can adopt instantaneous reactive power theory, harmonic analysis, dynamic measurement and calculation, combination prediction and reasonable action according to the actual reactive power demand of the system and the grouping mode of capacitor banks. All-digital intelligent control system adopts imported high-power thyristors in series to form high-voltage AC non-contact switches. The response time is less than 20ms, and no contact and no inrush current can be realized, quickly change its reactive power to provide dynamic capacitive reactive power for the power system. Reduce reactive power loss, improve the power factor, increase the transmission capacity of the line, adjust the system voltage, balance the three-phase load, improve the power quality, suppress the bus voltage change caused by the fluctuation impact load operation, which is conducive to transient voltage recovery, improve the stability level of the system voltage, improve the production efficiency of users and improve the quality of products.

Product Description

Main application

SDrHTC series high-voltage dynamic reactive power compensation devices can adopt instantaneous reactive power theory, harmonic analysis, dynamic measurement and calculation, combination prediction and reasonable action according to the actual reactive power demand of the system and the grouping mode of capacitor banks. All-digital intelligent control system adopts imported high-power thyristors in series to form high-voltage AC non-contact switches. The response time is less than 20ms, and no contact and no inrush current can be realized, quickly change its reactive power to provide dynamic capacitive reactive power for the power system. Reduce reactive power loss, improve the power factor, increase the transmission capacity of the line, adjust the system voltage, balance the three-phase load, improve the power quality, suppress the bus voltage change caused by the fluctuation impact load operation, which is conducive to transient voltage recovery, improve the stability level of the system voltage, improve the production efficiency of users and improve the quality of products.

 

Application areas

  • Long distance power transmission;
  • Rolling mill;
  • Hoist;
  • Urban secondary substation;
  • Power supply system of electrified railway;

 

Standard

IEC 60871-1:2014,GB/T 11024.1-2019,GB 50227-2017,DL/T1010-2006

 

Design

  • Rated voltage: 3kV, 6kV, 10kV;
  • Rated frequency: 50/60Hz;
  • Response time:<20ms;
  • Control power supply: DC220V;
  • Wiring mode: TSC HVC (△△ or Y),HVC;
  • Protection mode: open triangle voltage protection
  • Reactor rate: 6% or 12%, according to user requirements
  • Man-machine interface: Chinese color touch screen display;
  • Structure: indoor cabinet type
  • Shell color: RAL7035, according to user requirements
  • Operating temperature:-10 ℃ ~ 45 ℃;
  • Storage temperature:-30 ℃ ~ 70 ℃;
  • Relative humidity: monthly average is not more than 90% (25 ℃), no condensation;
  • Altitude:<2000m a.s.l.(≤ 5000m optional);
  • Seismic intensity: ≤ 8 degrees.

 

Technical parameters

Detailed technical parameters and product models, contact us!