TBB Type Metal-clad Switchgear

TBB is a metal-clad high-voltage reactive power compensation device designed for AC power systems. It is used to regulate bus voltage and reactive power, improve power factor, enhance voltage quality, and reduce power grid losses. The system integrates capacitor banks and switching devices in a compact metal-enclosed structure, supporting manual or automatic control. With reliable protection functions and compatibility with substation automation systems, TBB provides stable and efficient reactive power compensation for medium- and high-voltage power distribution applications.

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Overview

The High voltage Reactive Power Compensation Device is suitable for 3.6kV~40.5kV frequency 50Hz AC power system. It mainly adjusts the bus voltage and reactive power of power system, improves power factor, improves voltage quality and reduces power grid loss.

Feature

  1. The capacitor bank adopts grouped switching, which has high utilization of capacitors.
  2. It is optional for manual switching, or automatically switching with reactive power controller.
  3. The switching device has a perfect five-preventions’, with simple and clear operation procedures.
  4. It can be connected through the communication interface to the integrated automation system to meet the operation and management requirements of the unattended and centralized control of the substation.
  5. It has over temperature and over voltage protection, with internal and external fault locking function.

Operating Conditions

  1. Ambient Temperature: No more than +40℃ and no less than -15℃. Average temperature is no more than +35℃ within 24 hours.
  2. Altitude: No more than 1000m.
  3. Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
  4. Earthquake Intensity: No more than 8 degrees.
  5. Vapor pressure: average daily value is no more than 2.2kPa. average monthly value is no more than 1.8kPa.
  6. Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.

Technical Characteristics

Outline Drawing

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