High-current resistor

stainless steel-housedfloor-standingfilter

PRINCIPLE Modern electrical equipment requires a stable voltage supply with low levels of harmonic distortion. However, electrical installations often generate interference causing disturbance to electrical networks. This leads to various problems such as: Overheating Malfunctioning of control or remote monitoring systems High currents in the different phases or neutral lines Resonance problems As a result it is necessary to have harmonic filters. These are basically composed of capacitors and inductors. The addition of a resistor allows: Easier filter tuning at installation, Widening of the pass band, Greater tolerance of temperature changes in the components. APPLICATIONS HDVC conversion stations (LCC & VSC) Transmission voltage regulation Power quality and transfer increase Reactive power control Voltage stabilization(Wind farm) Dynamic voltage support (Railway) Arc furnances, rolling mills (Metal) Winders and crushers (Mining Industries) Compressors, pumps and drill Electrical propulsion and diesel systems FONCTIONS 1. SVC STATION – The static VAR compensators (SVC’s) improves power system transmission, distribution performance and control reactive power. – A harmonic filter is composed from 3 elements: Capacitors, Inductors and Resistors. – Inductors and capacitors divert the harmonics currents into the resistor where they are dissipated in a safe way. .