Product Description

Medium voltage switch gear is used in a wide variety of switching, control and protective applications including electric utility generation and distribution systems, industrial plants, commercial buildings, hospitals, municipal pumping stations, wastewater treatment plants, transportation systems, and pipeline stations. Transformers, motors, generators, capacitors, distribution lines, and feeder circuits are protected by this class of switch gear. Ratings: Rated voltage : up to *5kV Nominal current : **0A~ ***0A Rated Frequency : *0Hz Short time withstand current : *5kA Circuit breaker type : Vacuum Ambient temperature range : **0 to **0 C Short circuit duration : 1 Sec Standard Features: We manufacture state-of-art Medium Voltage Switchgear as defined by IEC ****8 which Includes: Drawout circuit breaker Full compartmented construction Grounded metal barriers enclose all live parts Automatic shutters Insulation of bus bar with shrinkable sleeve Mechanical interlocks for test & service position of circuit breakers. Disconnect type VT’s & CT’s Low voltage instrument/control compartment isolated from primary voltage areas Routine Testing involve: Power frequency voltage withstand test on the main circuit Dielectric test on auxiliary & control circuits Measurement of resistance of the main circuit Mechanical operation test & verification of mechanical interlock Verification of correct wiring Functional testing of relays Verification of scheme Ratio, polarity and secondary winding resistance test of protection and differential CT’s & VT’s CESI Type Test Include: Mechanical test Temperature rise test Lightning impulse voltage withstand test Dielectric test on auxiliary & control circuits Power frequency voltage dry withstand test Short circuit making and breaking tests Short circuit life test Short time current test