Interested to Buy Any Domain ? << Click Here >> for more details...
In all the generators, the excitation supply is DC. What is
the significance of DC excitation? What will happen if AC
supply is given as excitation supply?
- 2 Answers
- 5005 Views
- I also Faced
- E-Mail Answers
Answer Posted / michael von zechlin
Not all excitation systems use DC. There are excitation
systems which use high frequency AC as the input to the
generator field. There are a couple of reasons for this.
One is to prevent slip rings (if they are installed) from
excessive wear. Second, the regulator can be built smaller
and react quicker with less power loss. There are other
reasons. Will leave the rest for you to ponder.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
What will be the diameter of pipe between conservation tank and transformer
defination of lines
What is the different between digital phase converter and ordinary phase converter?
in science exhibition how lamp can blink when you clap near the lamp ? thank you
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?
how rectifier transformer work in electroststic precipetatore(esp?
What are diffrent type of road taxes?
What is ramp signal?
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
Hi friends, i m electrical engineer i want a cdr for migration purpose so anybody have information about this then send me on jayesh_ee88@yahoo.com.please try to me
What is meant by turbo alternators?
