Long distance power transmission
The electric power generated in a power station situated in a remote place is transmitted to different regions for domestic…
The electric power generated in a power station situated in a remote place is transmitted to different regions for domestic…
Drive: A combination of prime mover, transmission equipment and mechanical Working load is called a drive Electric drive: An Electric…
The protection scheme for a power system should cover the whole system against all probable types of faults. Unrestricted forms…
· The range of size of generators extends from a few hundred KVA to more than 500MVA · Small and Medium sized…
Current transformers are generally used to measure currents of high magnitude. These transformers step down the current to be measured,…
Under Frequency Relay Frequency based relays can either be under frequency relay or over frequency relay. The frequency relays are normally used in generator protection and…
Advantages of static relays • Due to the amplification of energizing signals obtainable, the sources need only provide low power. Therefore…
Distance relay is used for the protection of transmission line & feeders In a distance relay, instead of comparing the…
1. When fault current can flow in both the directions through the relay, at its location. Therefore, it is necessary to…
Torque is defined as the moment of the external applied force about a point or axis of rotation. The expression…
The torque equation T, for such a relay the current actuates the operating torque and the voltage actuates the restraining…
Electromagnetic relays are those relays which are operated by electromagnetic action. Modern electrical protection relays are mainly micro processor based,…