3 Phase Transformer Protection Demo Panel Base Material: Metal Base

We make and supply of 3 Phase Transformer Protection Demo Panels in Aurangabad, Maharashtra, India. The transformer protection demo panel is designed to give the demonstration of differential protection scheme used for power transformers. The power transformers, generally rated more than 5 kVA, are provided with differential protection scheme, to protect the transformer from internal faults. The internal faults may be created due to ageing effect, excessive heating, insufficient cooling system, failure of insulation etc. The protection demo panel comprises a 3-Phase transformer with number of tapings on HV & LV windings. The provision is made to create internal fault condition with help of fault simulating switches. The levels of fault currents are controlled by series resistors with fault simulating switch. The protective relaying scheme is designed for model transformer. The protective relaying scheme comprises a 3-element, percentage based differential relay, current transformers and circuit breakers. This gives similar demonstration of differential protection scheme. The demo panel also comprises with fault annunciation system with visual & audio fault indication & accept/reset facility. The process of fault clearing can be demonstrated from the same system. The total time required to clear the fault can be measured with timer. The demo panel is facilitated with Digital panel meters and indications for voltage & current at HV and LV side of transformer.