Basic Static Relays in Protective System

Static Distance Protection Relay

Static Distance Protection Relay: Static Distance Protection Relay are characterized by having two input quantities respectively proportional to the voltage and current at a particular point in the power system, referred to as the relaying point. The ideal forms of such relays have characteristics which are not dependent on the actual values of voltage and …

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Basic Elements of Static Relay

Basic Elements of Static Relay: The basic elements of a static relay are namely, Input Element: Mixing circuits are needed to sum the input signals in a convenient form. Semiconductor circuits are suited to the use of summing junctions, well-known in the analog computing field. Use of operational amplifier as a summer or mixer has …

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