Why we use CT on differant phases of 2ph.PT detection for brush-less static excitation of 3ph.,400v Synchronous Generator?
What happen if use CT on same one of VT phase?
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In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.
what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?
1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
What does the letter CTNM in negative phase sequence relay means?
What kind of preventive maintenance are there for transformer?
Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
i need to give section engineer (electrical engineer) for RRB. Please suggest some book
what is the difference between linear choke and suction choke?
can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?
regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?
why we use single core 630mm2 cable for transformer secondary side
what is the use of Auto re-closer?
why Lightening Arrester Probe sharp at Top of telecom tower.
What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.