STATCOM up to 415 V STATCOM STATIC VAR COMPENSATOR (SVC) STATCOM is used for reactive power compensation in a system having non-linear loads like drives, electric arc furnace, welding loads etc. SALIENT FEATURES ? Indoor, 415 V, 3 Phase, 50 Hz System ? Reactive Power Compensation from 100 kVAr to 500 kVAr ? Step less system ? Fast response; < 6 ms ? Eliminates 100% harmonic distortion ? IEEE 519 compliant ? RS 232 & RS 485 communication ? System Resonance mitigation BACKGROUND ? OV & OC protection ? Modular augmentation capability STATCOM is used for centralized reactive power compensation & harmonic suppression in a power system. STATCOM is an IGBT based Power Electronics device. It uses IGBT and inverter technology. It actively eliminates 100% harmonic distortion & reacts instantly to varying loads. This is done by injecting additional currents as required in order to cancel the harmonic components of the non-linear loads. Every 415 V consumer of Electricity Board using large number of non- linear loads & aiming at to have 'UNITY POWER FACTOR' or to have 'A Desired Power Factor' should possess a STATCOM. ? Harmonic Spectrum 2nd to 19th DESIGN A STATCOM is installed in parallel to the harmonic generating loads. A CT first measures the current being drawn momentarily by the load. Then filter control unit analyses this current for amplitude & harmonic order. Then it feeds a compensation current into system whose amplitude and individual harmonic order is exactly equal to the current drawn by the load but which is 180° out of phase with it. So the harmonic currents cancel each other and the supply network only has to supply the fundamental frequency and is not contaminated with harmonics at the point of connection. Page 1 STATCOM up to 415 V STATCOM ? Functional accuracy Operating Modes: ? Overvoltage and over-current protection ? Reactive Power Compensation (RPC) ? No signal ? Active Harmonic Filter (AHF) ? Physical intactness ? Active Static VAR Compensation (RPC +AHF) TESTING Following tests are conducted as per the demands of application: ? Circuit continuity Crompton Greaves Ltd. Vacuum Interrupters and Instrument Transfomers Division : Power Systems D2 MIDC, Waluj, Aurangabad 431 136, Maharashtra, India Ph. : + 91-240-2558000, 2558031, Fax :+ 91-240-2554697 E-mail : Divisional Marketing North Region (India) East Region (India) West Region (India) South Region (India) International : : : : : : manoj.naphade@cgglobal.com anil.kamra@cgglobal.com, gautam.tewari@cgglobal.com dipankar.dassarma@cgglobal.com ajay.kotak@cgglobal.com murali.dn@cgglobal.com govindaraj.s@cgglobal.com Registered Office CG House, 6th Floor, Dr.Annie Besant Road ,Worli , Mumbai 400 030 (India). Web : www.cgglobal.com mgn-001/Jan 2010/ Pratik & Dushyant The data given in this catalogue is subject to change without notice Page 4