Tag: transformer protection

Characteristic Functions of Protection Relay

Characteristic Functions of Protection Relay: Characteristic Functions of Protection Relay elements using different operating principles. These principles and design criteria determine how well the basic function is performed and how in practice it deviates from the ideal. Static relays can achieve such a high performance that the departures from the ideal in practice are negligible. […]

Overcurrent Relay

Overcurrent Relay: Overcurrent Relay – In a three phase system of relays, it is economical to build it on a single phase basis. Thus there will be three converter elements, one for each phase, but thereafter the rest of the circuits (e.g. measuring element, output element, etc.) will be common to all the three circuits. […]

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