why can't we increase the voltage by increasing the field voltage in order

why can't we increase the voltage by increasing the field
voltage in order to get higher voltage.so that we can
eliminate step up transformer

Question Posted / ramravi143

4 Answers
6111 Views
Bhel, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

why can't we increase the voltage by increasing the field voltage in order to get higher volta..

Answer / santosh mahato

i think that, if we increase the field voltage from certain
limit then there will be a chance of sarturation in the
machines.

Is This Answer Correct ?

11 Yes

1 No

why can't we increase the voltage by increasing the field voltage in order to get higher volta..

Answer / subrata

I think there are two reasons..
1. Above a certain limit there is a chance of saturation.
2. We will not be able to provide suitable insulation in a rotating machine above a certain voltage.

Is This Answer Correct ?

7 Yes

1 No

why can't we increase the voltage by increasing the field voltage in order to get higher volta..

Answer / waqar ahmad

Every machine is designed for specific insulation level
against voltage level. So increasing voltage, insulation
can get puncture & as a result machine will get failure. so
voltage can't be increased from predefined / designed lavel.

Is This Answer Correct ?

2 Yes

0 No

why can't we increase the voltage by increasing the field voltage in order to get higher volta..

Answer / surendra

In which mode machine is running ,that basiclly tends to
decide the field excitation....apart from this if you
increse the fild excitation to high value saturation
occurs... losses will be more.....

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

In dc ckt. 24v or 110v, which one is more efficient and why?

0 Answers

I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 Answers

what is the diffrence between earth and neutral.

1 Answers

what is the purpose of the armored for the power Or control cable? How to select the type of the armored?

1 Answers Siemens,

what will happen if i connect the buchholz relay in reverse direction.

1 Answers MAN,

electric contractor ya contactor kia hota hy ? or kesy connect kia jata hy ?

1 Answers

Difference between induction motor and synchronous motor? i Think Synchronous motors operate at synchronous speed (RPM=120f/p) while induction motors operate at less than synchronous speed (RPM=120f/p – slip). Slip is nearly zero at zero load torque and increases as load torque increases am a right pls guide & send Other Comments

5 Answers Jindal,

0 Answers TATA,

What is transformation ratio what it describes?

0 Answers Cushman Wakefield,

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers IAG Automation, REL,

On what basis the the size of Lightning arrester for buildings are selected ?

0 Answers KGD,

why measure the gravity in battery?

2 Answers

For more Electrical Engineering Interview Questions Click Here