What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply10 26864
what is star&delta connections?5 7626
hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.1734
What is the use of centrifugal switch in 1phase induction motor? Why is it so called?2 5570
In step down transformer (415/200V),mistakenly secondary side is connected to 415V for some hours, what would be result of this condition?19 15419
WHY IS THE SIZE OF HOLE OF THE EARTH POINT IN THE PLUG POINT BIGGER THAN PHASE AND NEUTRAL7 8915
What is the meaning of GRID?21 26933
What about Reactive power.and role of that one?7 5985
The importance of resonant filters in converters?1 1663
How much Fault current can be contributed by a motor?4 4778
In any Industry, Which voltage level either 3.3kV or 6.6KV to be chosen? Then I would like to know ,Is there any cost consideration or Rating of motor?5 6857
what r the advantage of selecting micro controller type tripping of circuit breaker than relay type tripping?
While testing LA mast,What are the parameter limits ?
what is the condition for YnD11
Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?
i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.
3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
Why cables and busbar both needed in LT Panels?
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
why lightning arrestor are made in two stack of insulator but why not cvt
what is the saturation point of crgo lamination.
What is FM200 Gas??Applications........
How colour picturetube works & how many year it will works.
How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?
if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please