1. What is differential relay? How it operates?3 4672
How to calculate the Short Circuit Impedance in Transformer?3 6501
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?1443
While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply?2 4984
What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?1479
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?2 6076
Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?3 17302
. What should be the minimum and maximum ohmic value for earthing?1 3690
Why DC Currents are not used in transformer?4 6200
What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?2 3687
As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?3 5368
How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?2 3823
. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV?3 9154
Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?3 6441
Explain why the Voltage drop will happen in 3 Phase line?2 4376
CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415
What the difference between ac and dc inductor an capacitor
What are the commonly used schemes for the bus zone protection?
IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM
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What are PLC leader logic program method
what is the difference between Power and Distribution transformers ?
we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan
Alternator rotor earth fault relay circuit
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
What is an ac motor?
can anyone give an idea about dia calculation in cold rolling mill
why we use copper earthing for neutral while for body GI.
Define closed loop control system.
Which do you think is the most significant cause of energy loss in a factory?