To avoid accidental shock, the earth leakage relay/sensor is used at the source to isolate the power when leakage exceed a certain limit. Earth leakage circuit breakers are used for the purpose. The current sensing breaker are called RCB/ RCCB. In industrial applications, earth leakage relays are used with separate core balanced current transformers. This protection works in the range of milli-Amps and can be set from 30 mA to 3000 mA.
Electrical cloud of answers, Unlimited study Notes, and Downloads with videos
-
A Static Transfer Switch (STS) utilizes a static electronic component (SCR), which permits a transfer in less than four milliseconds (1/4 o...
-
WTI and OTI of Transformer The WTI means winding temperature Indicator and OTI means Oil Temperature Indicator which indicates the win...
-
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 ...
-
Low voltage measurement and control device is mainly used for the measurement and control of 0.4KV voltage grade of low voltage wire feedi...
-
Elements - RESISTOR - CAPACITANCE OR CAPACITOR - INDUCTOR = reactance = impedance =susceptance =admittance - VOLTAGE SOURCE - CURRENT...
-
Earthing or Neutral Grounding Transformer When a transformer is used for the purpose of providing a neutral point for grounding purpose in...
-
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...
-
Differential protection schemes transformer protection schemes motor protection relay line protection relay generator protection device
No comments:
Post a Comment