Answer Posted / roy kurian
3 root=1.732,for 3 phase-415*1.732 =718. If load is 40
kw,cable size will be - 40,000/718=55 mm2
| Is This Answer Correct ? | 1 Yes | 7 No |
Post New Answer View All Answers
what is 3rd Harmonics? how it is generated in alternator
What are the different methodes for calculating the short circuit Current?
With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
How can you sized or estimate the ligthning arrester current rating?
give me atleast four differences between circuit and network
What are the application of filter?
Wt is the function of reactive power? How it generates & consume though resultant is zero?
Why an ac systems are preferred over dc systems?
What is d main advantage of using double circuit 3 phase transmission ?
how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.
Explain Energy and Power signals?
what is capacitor voltage transformer?? how it is different from potential transformer?
