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Description / Abstract:
This document provides general guidelines for the preparation of
a functional specification for solid-state electronic shunt devices
used mainly for compensation of voltage fluctuation. The guide
covers devices rated to medium voltage (1 kV–35 kV). This device
contains in general: an inverter, rectifier or dc converter, energy
storage device, and coupling transformer. The device typically is
connected in parallel with the network using a coupling
transformer.
Normally this device is not designed for flicker compensation.
If flicker compensation is needed, the specification has to be
modified, and the manufacturer has to design the device for flicker
compensation.
In order to interface these devices with the network, additional
equipment should be provided, including current and potential
transformers, bypass and isolation breakers, disconnect switches
and three-phase lowvoltage service for auxiliary power.
Purpose
This guide includes technical clauses describing the user's
requirements, including operation methods and environmental
conditions. It specifies basic requirements of solid-state
electronic shunt devices used for compensation of voltage
fluctuations by injection of reactive power.