Static VAR Compensator

  • Fast dynamic power factor compensation
  • Most common solution for transmission lines
  • Better cost per kVAr for larger systems (>80 MVAR)
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SVC Technology

Main components


Thyristor valves

High power, Thyristor based, series converting technology. Electric Triggered Thyristor (ETT) or Light Triggered Thyristor (LTT) options are available. Can be connected from 1 kv-69 kv system directly without step-up transformer


TCR Reactors

Twin winding, air-core and natural cooled. Our air core reactors are highly reliable and require little maintenance.


Harmonic Filters/Capacitor banks

Designed specifically to comply the customer needs, we use high quality components, engineered and assembled to provide optimal performance and unparalleled reliability.


Water cooling system

Compact and high efficiency cooling system.Two options for cooling are available. Water/water with external loops or water/air type with extra fans.


Protection and control

Advanced digital control system with multiple customizable functions. Protection modules can be personalized to fit specific customer requirements. Remote monitoring systems are available.

SVC Operating principle

An SVC is connected to the system as shown in the following figure. The capacitor banks provide the reactive power. The thyristor-controlled reactor (TCR) will consume the reactive power that the load doesn’t require. This is accomplished by controlling the triggering angle of the thyristors. The control system determines the reactive power compensation required by comparing the reactive power of the bus against the reactive power target value in the SVC controls.


Download the brochure to learn more about its specifications of SVC technology


SVC Applications

Proper selection and configuration of equipment can offer substantial benefits 



SVC offers to enhance efficiency and reliability in transmission lines. By increasing transfer capability, reducing transmission losses and improving voltage stability.

  • Stabilize grid voltage
  • Reduce transmission losses
  • Increase line capacity
  • Balance three phase power
  • Improve transient stability
  • Damp power oscillation

Steel Industry 

A steady voltage, increases productivity

  • Reduce electrode consumption
  • Increase refractory life
  • Favorable tariff
  • Reduce outages

Renewable Generation

A stable grid voltage may prevent harmful impact caused by faults in the grid. The SVC is able to prevent this.

  • Improve power factor
  • Reduce transmission losses
  • Mitigate harmonics
  • Stabilize grid voltage

FACTS Comparison

STATCOM is a newer technology than SVC, because of its advantages and versatility, it is replacing SVC as the main power quality and reactive compensation solution.


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