Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

3327

show the single line diagram of star delta starter with single phase preventer

4581

how we can calculate 2 phase welding transformer rating or total power?

1809

What is meant by reset level of the relay?

1157

hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

2216

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2440

10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)

2597

why we r not earthed Control cable of C.T. terminals

1980

1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

3305

What is VCB? where it is installed at SP. What is SP?

2126

can i use the six sigma method which is used in management area, in state estimation of power systems?

1817

is there any role of power factor with frequency variation? and how we can manage the frequency variation?

2023

Do inductive loads have distorted current waveforms ?

1873

what is the role and fuction of automatic transfer switch in rotary ups

1848

how to find the resistance and gap volatage of the diode??

1993