Protection System

IDMT Relay Tripping Time Calculator

Inverse definite minimum time (IDMT) relay is a form of overcurrent relay that operates in inverse time fashion with the current in the protection system. Basically, with the change in the peak value of the current, the time required for the relay to perform is decreased. The measurement of operating time starts immediately when the …

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Protection Relay

Philosophy of Protection System

The objectives  of the protection system: –  limit damage to people and to the plant; –  permit different  service conditions; –  guarantee maximum service continuity for the plant not affected  by faults; –  activate the automatisms provided. The characteristics of the protection system: –   Dependence: it can be called on to work after either a short …

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