Product

HVCT high voltage reactive power static compensation device (SVC) Thyristor switching capacitor type

        HVCT series high voltage reactive power static compensation device is a typical flexible AC power transmission device. The device can adopt instantaneous reactive power theory, wavelet analysis, dynamic measurement calculation, combination prediction and combination according to the actual reactive power demand of the system and the way of capacitor grouping. Reasonable action, using high-power thyristors in series to form a high-voltage AC non-contact switch, fast zero-crossing switching of multi-level capacitors, can achieve non-contact, no inrush current, and no transitional switching, and quickly change its reactive power output, which is electric The system provides dynamic capacitive reactive power.

Introduction

  • HVCT series high voltage reactive power static compensation device is a typical flexible AC power transmission device. The device can adopt instantaneous reactive power theory, wavelet analysis, dynamic measurement calculation, combination prediction and combination according to the actual reactive power demand of the system and the way of capacitor grouping. Reasonable action, using high-power thyristors in series to form a high-voltage AC non-contact switch, fast zero-crossing switching of multi-level capacitors, can achieve non-contact, no inrush current, and no transitional switching, and quickly change its reactive power output, which is electric The system provides dynamic capacitive reactive power.
  • This device is widely used in machinery manufacturing, metallurgy, mining, coal, chemical industry, tap water, building materials, ports, electrified railways and other users who need reactive power compensation to reduce reactive power loss, improve power factor, increase line transmission capacity, and adjust system voltage. Balance the three-phase load, improve the power quality, suppress the bus voltage changes caused by fluctuating impulse load operation, which is conducive to transient voltage recovery, improves the stability of the system voltage, improves the user's production efficiency, and improves the product quality.

Feature

  • Good match: Use high-quality parallel capacitors and series reactors to form an LC circuit, strictly control component deviation to ensure good matching Short circuit protection: In order to avoid inter-phase short circuit when the component breaks down, the capacitor bank adopts the star connection method in strict accordance with the relevant national standards.
  • Digital intelligent control: Adopt a fully digitalized intelligent control system to achieve full digitalization, LCD display, with networking communication function, you can view the time, operation mode, switching group, and the voltage, current, and power factor of each busbar
  • long life: The capacitor switching switch adopts a vacuum contactor suitable for opening and closing capacitive current, which is compact in size and has extremely high electrical and mechanical life. It can also be used as a vacuum switch capable of opening and closing capacitive current.
  • Perfect protection: The protection of the device is complete. In addition to the spray-in fuse and relay protection, it also has operating over-voltage protection, limiting closing surge protection and capacitor discharge protection
  • Optimal operation: The microcomputer determines the switching mode according to the reactive power required by the system and the capacity of the capacitor bank to achieve the goal of optimal operation
  • Safe and stable performance: Using photoelectric trigger technology, the primary system and the secondary system are completely isolated, and the synchronization of the trigger signal is ensured. The voltage energy before the turn-on, the current energy after the turn-on, high and low voltage electrical isolation, to ensure safety performance
  • Good heat dissipation performance: The valve group adopts horizontal layered structure, which is convenient for observation and good for heat dissipation
  • Easy to maintain: Arranged separately in a cabinet, isolated from the capacitor bank, safe operation and convenient maintenance
  • Accurately locate faults and facilitate maintenance: Monitor the status of each thyristor in real time, give an alarm when the fault is in the redundancy range, and output a trip instruction if it exceeds the redundancy range to ensure safety, realize fault location and facilitate maintenance
  • Note: In order to save space, the incoming line and control system are generally integrated into the compensation cabinet on the first side, and a separate incoming line or control cabinet can also be provided


  

Model Guide

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Standards

  • IEC 60871-1:2014
  • GB/T 11024.1-2019
  • GB 50227-2017
  • DL/T 1010-2006
  • Q/RCSW 001-2002

  • Primary Electrical Diagram

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Model Selection Guide

  • The order model should reflect the rated voltage of the device, the rated capacity of the device and whether it is a series reactor or not, and other special requirements must be indicated
  • If the HVCT series single-channel static compensation branch adopts the cabinet structure, it is generally composed of two-sided cabinets, one of which is a capacitive reactance cabinet and the other is a valve block cabinet.
  • The size of the single-sided cabinet is generally 1200×1600×2600mm ,
  • Special size can be customized

Example:

  • HVCT series single-channel static compensation branch is composed of two-sided cabinets, and the capacity generally does not exceed 1500kvar. If there is actual need, the size of the single-sided cabinet can be increased or the number of cabinets can be increased. Device configuration and structural size can be negotiated according to user requirements

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