Oil Cooled Potential Transformer

Listing ID #2649765

Our organization is highly concerned towards providing excellent quality products to the customers and thus check them at all stages. Superior raw materials are essential for the development of a quality product. Thus, we obtain these materials only from the dependable sources available in the market.
Application: Direct measurement of voltage in High Voltage System is Not possible because of insulation problem of measuring instruments. It is also not possible to use direct voltage for the system protection purpose due to its high value and high insulation problem protective relays. Therefore voltage transformers are used to step-down the high system voltage to low standard value accurately in proportion to their ratio. Basic Functions of Voltage
Transformers Are: To reduce the line voltage to a value which is suitable for standard measuring instruments relays, etc. To isolate the measuring instruments, meters, relays etc. from high voltage side an installation To sense abnormalities in voltage and give signals to protective relays to isolate the defective system Construction Voltage Transformer Mainly Consists of Primary & Secondary winding Electromagnetic Core Bottom Tank & Oil Expansion Chamber Porcelain Bushing Primary And Secondary Winding Copper enameled wire is used for winding. Primary is wound with multilayer and graded insulation. The diameter and length of each layer is selected such that Surge voltage is distributed equally in all layers of the Winding. Multilayer Kraft Paper insulation is provided between winding layers. Stress equalizing shield is provided on last layer of the winding. H.T. Connection is brought out through metallic pipe. Secondary is separately wound and inserted in the primary winding as per the requirement. Winding and tapping of V.T. is done in dust-free atmosphere.
Features: Long functional life Less maintenance High performa.