SVC Inductive Load Drivers

An SVC inductive load driver is an electronic driver module that, on a command from the power factor correction relay, switches single-phase shunt reactors in steplessly from zero to full power. It is used in facilities where reactive power changes quickly or is unevenly distributed across the phases, to eliminate separately in each phase the capacitive excess that contactor-switched steps cannot balance. The Entes SR and Tense SRL series include models with driving ratings of 5 kVAr, 10 kVAr, 20 kVAr and 30 kVAr, while on the Tibcon side there are modules defined by per-phase power such as 3x3.33 kVAr, 3x10 kVAr and 3x20 kVAr. Choose the driver by the per-phase power of the shunt reactors to be connected, its compatibility with your relay, the maximum permitted fuse current and the recommended cable cross-section. Product data specifies a separate thermal input for each reactor, a test button and status LEDs, and on some models a cooling fan. Despite the word driver in its name, the SVC inductive load driver is not a motor speed drive; it does not provide correction on its own without the shunt reactors and the relay.

Products

How to choose SVC Inductive Load Drivers

An SVC inductive load driver is an electronic driver module that, on a command from the power factor correction relay, switches single-phase shunt reactors in steplessly from zero to full power. It is used in facilities where reactive power changes quickly or is unevenly distributed across the phases, to eliminate separately in each phase the capacitive excess that contactor-switched steps cannot balance.

  • Take reactive power demand and harmonic distortion levels from site measurements or project calculations.
  • Compare kVAr step sizes, rated voltage and step count against the compensation panel layout.
  • Select capacitor duty contactors, harmonic filter reactors and discharge resistors together with the capacitor bank.

Frequently asked questions

What is SVC Inductive Load Drivers and where is it used?

An SVC inductive load driver is an electronic driver module that, on a command from the power factor correction relay, switches single-phase shunt reactors in steplessly from zero to full power. It is used in facilities where reactive power changes quickly or is unevenly distributed across the phases, to eliminate separately in each phase the capacitive excess that contactor-switched steps cannot balance.

What should I compare when choosing SVC Inductive Load Drivers?

Choose the driver by the per-phase power of the shunt reactors to be connected, its compatibility with your relay, the maximum permitted fuse current and the recommended cable cross-section.

Where can I find technical details for SVC Inductive Load Drivers products?

It is used in facilities where reactive power changes quickly or is unevenly distributed across the phases, to eliminate separately in each phase the capacitive excess that contactor-switched steps cannot balance.

SVC Inductive Load Drivers Selection Guide: Technical Criteria & Application Standards