It is an electrical device designed to initiate the isolation of a part of the electrical installation or to operate an alarm signal, in the event of abnormal condition or a fault. In simple words relay is an electrical device that gives the signal to isolation device (eg: Circuit Breaker) after sensing the fault and helps to isolate the fault system from the healthy electrical system
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A Static Transfer Switch (STS) utilizes a static electronic component (SCR), which permits a transfer in less than four milliseconds (1/4 o...
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WTI and OTI of Transformer The WTI means winding temperature Indicator and OTI means Oil Temperature Indicator which indicates the win...
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IP Code, or Ingress Protection Code[1], IEC standard 60529, sometimes interpreted as International Protection Code, classifies and rates th... -
Open circuit test or No-load Test of Transformer The Open circuit test of the transformer is one of the type test of transformer by which ...
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Low voltage measurement and control device is mainly used for the measurement and control of 0.4KV voltage grade of low voltage wire feedi...
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Elements - RESISTOR - CAPACITANCE OR CAPACITOR - INDUCTOR = reactance = impedance =susceptance =admittance - VOLTAGE SOURCE - CURRENT...
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Earthing or Neutral Grounding Transformer When a transformer is used for the purpose of providing a neutral point for grounding purpose in...
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auto-put-into device of reserve-source device is divided into the incoming line and the busbar connection,The device can be used in the 11...
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Differential protection schemes transformer protection schemes motor protection relay line protection relay generator protection device
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