The various protective functions available on a given relay are denoted by standard. For example, a relay including function 51 would be a timed overcurrent protective relay. An overcurrent relay is a type of protective relay which operates when the load current exceeds a pickup value. It is of two types: instantaneous over current (IOC) relay and definite time overcurrent (DTOC) relay.
[pdf] The Central Electricity Authority has issued comprehensive guidelines on allocating and sharing optical ground wire and underground fiber optic cables in the power sector, aiming to enhance grid communication while regulating commercial leasing. The guidelines have been formulated with the collective. CEA issues guidelines for usage and sharing of optical fibers for power sector Guidelines for the effective distribution, sharing, and use of optical fibers have been released by the Central Electricity Authority (CEA), which will help improve resource management in the power industry. FO-VC2 JOINT USE - VERICAL MIDSPAN CLEARANCES 48. APPENDIX A - COVER SHEET / TOC 52.
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