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sir i want previous entrance exam papers for written test
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?
how to select correct size of power cable for inverter duty motor
What do you understand by oldham's coupling ?
Why the magneti fields are not passes from southpole to north pole
why the protection turbo generators is most complex?
When lag/lead/lag-lead compensation is employed?
How the annunciator works ? How to do its wiring
What is the name of transformers oil filteration equipment?
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load
what is meant by surge? what we called for high currents?
Explain Energy and Power signals?
Differentiate between magnetic field and magnetic flux?
Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir
