if transformer core is made of copper instead of steel which
losses will increase..please explain
- 5 Answers
- 15120 Views
- Bhel, I also Faced
- E-Mail Answers
Answer Posted / chandan kumar
hysterisis losses increases bcoz high grade steel is solenly
used in core material to reduce hysterisis losses while
laminated core is used to reduce eddy current losses.and
copper losses occur due to resistences of primary and
secondary windings....
| Is This Answer Correct ? | 39 Yes | 7 No |
Post New Answer View All Answers
please explain how to do 'pole drop test' on generator?
How is the gain affected by the introduction of feedback in a control system.
What do you mean by screen of power cables?
Discuss about gear cutting machines.
In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?
If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.
In siemens PLC, why do we want to move the data ?
how we sesign the transformer give some specifion regarding design of transformers
state the disadvantages of carbon filament???
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.
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.
The height to which the liquid in a tank to be maintained for a certain constant velocity?
hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"
