NEPSI Ships 8-Stage Shunt Reactor/Capacitor Bank

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Monday Oct. 14, 2013

NEPSI announced today they recently shipped an 8 stage metal-enclosed shunt capacitor bank and shunt reactor bank to the 10 MW Columbia III solar photovoltaic (PV) plant located in Mojave, California.

The 8-stage bank, designed and built by NEPSI, will supply 4.2 leading MVAR (capacitive) and 2.6 lagging MVAR (inductive) to Recurrent Energy to meet Southern California Edison's (SCE) interconnection requirements. The shunt reactor bank extends NEPSI's capability to control voltage or system power factor by having the ability to produce or consume vars. This is especially advantageous to independent power producers that have to meet stringent interconnect requirements.

The 4 stage reactor bank utilized switched iron-core reactors to absorb vars. The use of iron-core reactors, over a more traditionally used air-core reactor provided for significant space and cost savings and the ability to ship the equipment as a single, fully integrated system.