Resin Cast Potential Transformers - High Efficiency Ac Voltage Reduction | Dual Purpose Metering & Protection With Open Delta Winding, Standardized 110v Ratings, Multi-instrument Connection, Earth Fault Detection

* Highly efficient and accurate resin cast potential transformers.
* These are used In AC circuits, for the purpose of measuring large voltages.
* Their main function is to reduce the supply Voltage to a small value so that it can be easily measured with standard low range AC instruments of moderate size and capacity. * There many advantages of using Potential Transformers for range extension of AC meters.
* We also offer Potential Transformers of dual purpose Metering & Protection that are also commonly used.
* These have some special features which are:
* These come with an additional secondary winding that is connected in open delta so that if these is an earth fault on any of the phases, required voltage is developed across the open delta terminals which is then used to actuate a tripping mechanism.
* The instrument is mostly isolated from line voltages. Thus, it can be grounded.
* It is possible to achieve standardization of instruments and meters at secondary ratings of 110V.
* Several instruments can be connected from a single transformer.
* The power connected in measuring circuits is low.