Interested to Buy Any Domain ? << Click Here >> for more details...
Between AC generator(alternator) and DC generator which can
be designed for high voltage and why?
- 1 Answers
- 4836 Views
- I also Faced
- E-Mail Answers
Answer Posted / iamdon
AC generator(alternator) can be designed for higher voltage
as compared to DC generator for following reasons.
Large rated alternators are of rotating field
type.i.e,armature is placed on stator which is stationary
and DC field winding is placed on rotor which is moving at
synchronous speed at steady state.
1)Insulation required for armature, is not subjected to any
mechanical stresss because of no rotation of armature.So
insulation for higher voltage is possible.
2)Armature is placed on stator which is outside.There are
more spaces available on armature.So it is easier to
provide more insulation for higher voltage withstanding
capabilty.
DC generator are of rotating armature type due to which above
mentoined beauty is less effective.So insulation for higher
voltage is not easier.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
What is the use for cable entry in control room?
How to convert a two phase power into a three phase power in induction machine?
Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both
1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
power transmission pole used one support , that only for support or earthing
As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
Why use the vcb at high transmission system ? Why can’t use acb?
Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?
what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?
TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?
How much weight an electrical engine can pull??
what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct
Do u know any one? how to find out in motor rated amps? formula?
What are the application of filter?
