Guide for the Functional Specification of Medium Voltage (1 kV-35 kV) Electronic Shunt Devices for Dynamic Voltage Compensation
|Publication Date:||15 November 2004|
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.
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.