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Pilot wire schemes for feeder protection
In differential protection scheme, the current entering at one end of the line and leaving…
Posted inProtection and Switch gear
Protection Of Feeders
Over current and earth fault protection It is customary to have two elements of over…
Posted inProtection and Switch gear
Comparators
Looking at the general torque equation and any of the other relays used, it can…
Posted inProtection and Switch gear
Setting of differential relay
The separate blocking relay in series with the differential relay is used. The operation of…
Posted inProtection and Switch gear
Magnetizing current inrush
When the transformer is energized, the condition initially is of zero induced E.m.f. A transient…
