Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / gopalakrishna
transformer ratting are always in KVA or MVA why because
transformer iron losses are depen upon current, and copper
losses are depending upon voltage hence the rattings of the
trans former rattings are in 'kva'
| Is This Answer Correct ? | 3 Yes | 4 No |
Post New Answer View All Answers
what are the protecyion of transformer & generators
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
what is difference between elr and R eartl realy.
SUTIABLE FOR ohm's law super conductor
What the main causes of transient interruptions on Over-Head Distribution Lines?
Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?
Which of the following alternatives will be cheaper (1) A 100 h.p AC, 3-phase motor (2) Four motors of 25 h.p each (3) Five motors of 20 h.p each (4) 10 motors of 10 h.p each explain
What is a copper loss or i2r loss pc?
how to decide the capacity of accl
Explain dc generator with its types?
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.
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?
model question paper for supervisor trainee
Why is ignitor used in sodium vapour lamp
