wat is the difference between real power and reactive power..which is useful..?and how it s useful..wat is the effect of these on a power system...
ABB,
10 24315why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation
4 8783In tranformer winding Connection Like Dyn1 ,so LV lags Hv by 30 deg and Dyn11 LV lead HV by 30,so how do this lagging and leading afffect the transformer??
2 6712Post New Electrical Engineering Questions
TYPE'S OF BREKAR ,WHAT IS TRANSFORMAR & SAFTY. STARTER DOL & STAR DELTA STARTER.
why ahould you show client/engineer activities clearly on the project plan
explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.
how to calculate insulation level of transformer?
What is distance between electrical panel to land ?
How much dc volt applied in cathodic protection system?
how we provide neutral earth on synchronising panel as per electrical standards?
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan
advantages & disadvantages of Lagging and leading power factor .
WHat is the general checks required for Dry type transformers
what are the problems that generally occur in power flows??
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
is it value of power factor is more than unit. whats effects in the source supply
what is the effect of un-synchronized power.