Static Var Compensator

A Static Var Compensator determines the required reactive power by measuring the voltage and current of the grid. By using thyristors, it switches capacitors and reactors in or out of the circuit, either stepwise or continuously, to supply the reactive power needed by the grid. This process is performed dynamically and within a fraction of a second.

COMPACT SWITCHGEARS

Applications of SVC:

  • Voltage regulation: Helps stabilize voltage in the grid by compensating reactive power.
  • Reduction of power losses: By reducing reactive power in the network, power losses are also minimized.
  • Improvement of system stability: Contributes to the dynamic stability of the power system through reactive power control.
  • Reactive load compensation: Used in industries with high reactive loads (such as induction furnaces or large motors) to compensate reactive power.
  • Harmonic reduction: Reduces harmonic distortion by using harmonic filters.

Advantages of SVC:

  • Fast response to grid changes.
  • Precise control of reactive power.
  • Reduction of voltage fluctuations.
  • Increased power transmission capacity of lines.
  • Improved power quality.

Fulmen is capable of Design, engineering and installation of SVC in All MV ranges. Loshan, a site in which Fulmen installed a SVC system with the following specifications:

  • SVC model: Thyristor controlled reactor + Fixed capacitor
  • Direct installation voltage: 3 phase 20Kv/50 Hz
  • Reactive power ranges: -3.5 MVAR inductive to +14 MVAR capacitive

Principal control specification:

  • Manual mode: Susceptance regulator
  • Automatic mode: Voltage regulator /Q regulator
  • Protective Functions: Relay based protection (ABB type)
  • Software protection for TCR overload UV/OV

Display & man-machine interface:

  • Operator station: PC based, connected to main control via DP-PROFIBUS protocol
  • Touch screen panel of synchronizer unit
  • Four power analyzer unit for monitoring of electrical parameters.