Capacitors for Hight Performance Power Frequency C

Capacitors are designed with mosaic wacum metallized film technology, flatted element, flame metal spraying, high vacuum vegetable oil impregnation, non magenatic stainless steel case and plastical bushings. These capacitors have excellent quality, high reliability ,safety environment protection.The main key production equipment are imported from Taiwan RODER and Korean VECOTEC company.Capacitors are key elements in modem varible speed electrical drives.These drives use static frequency converters in which paracitic signals are generated by the switching of semi-conductors Therefore, capacitors are necessary to filter and smooth out ripples and eliminate harmonics,Self healing metallized film capacitors work as DC-link or harmonic filters in the intermediate circuit. They can also be used as clamps or snubbers in control circuits.Converters for locomotivws ,trams,ships, electric cars and any other electrically powered vehicle. Converters for pumps,ventilators for the-mical,weaving,machinery, steel industry,lifts,moving sidewalks or any other machinery necessitating variable speed drives. Capacitorsbringreal benefits high energy and power densities high ambient temperature very long lifetime very lowinductance strong resistance to high current low loss level execllent thermal dissipation low weight high mechanical stength Detailed technique specification Capacitance range: C=100µF 20000µF,highervalues on request Capacitance tolerance : Usual +/-10% ,lower values onrequest C/C for100'000 hours :C/C less than 5$, othervalues on reqest . Nominalvoltage: Un=600V to 6kV,other valueson request. The operating voltage is the sum of the DC voltage and the peat value of the superimposed ripple voltage Un=Undc+Uripple Nominal current: The permissible rms current isgiven in the table below Loss factor tan:≤0.002 at 20,50Hz Self -induxtance:Typically 30 nH≤L≤600nH,lower than 30nH on request Lifetime expectancy :100'000 hours, other values in request Surge voltage: These capacitors may be exposed to the following sruge voltages without any significant reduction of the lifetime expectancy . Ambient temperature:During operation-55 +85 storage -55 +90 higher values on request. Max. permissible altitude: 1000m, otheraltitudes on request Installation: In any postition Tests according to standards: IEC 61881 Repetieive surge voltage 70 hot spot Max. duration per day 1.15Un 30min 1.30Un 1min