What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
1507While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply?
2 5105What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?
1519Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
2 6174Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?
3 17455What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
2 3770As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?
3 5562How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?
2 3913Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?
3 6537Post New Electrical Engineering Questions
what happens if dc supply is given and the remedies for it.
How to calculate capacitor bank size at a load 800kVA.
Please explain me about Relay curves and their sources to read ?
we need a ntpc previous papers
all interview questions with answers of ntpc (2000-2009
What is different between Circuit breaker and Isolater?
what is the voltage rating of chiller unit sensors
In a single how much maximum current and watts using
how rectifier transformer work in electroststic precipetatore(esp?
3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??
What is the application of Dyn1 and Dyn11 vector group of transformer?
Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).
If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.