Interested to Buy Any Domain ? << Click Here >> for more details...
what is brushless generator.How does work it..??
- 3 Answers
- 8928 Views
- NTPC, I also Faced
- E-Mail Answers
Answer Posted / kj
Normally brushes were used with a commutator with
generators with a rotaring field or sliprings for
stationary field.
As the brushes always would require servicing generator
manufacturers found ways to eliminate them. To do this they
used 2 generators on the same shaft. A small one (exciter)
with a stationary field to produce a 3 phase supply on the
rotor. The output from this generator is rectified with the
rotating diodes and feed into the main rotor. This is a
rotating field generator.
The voltage is controlled by controlling the field of the
small exciter generator. A second benefit is that the field
current is reduced from anywhere between 25 to 100 amps to
only 2 to 10 amps. This makes the control of the field much
easier and cheaper.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
determine two methods to find loose connection in operational electrical system?
What are the limitations of Kirchoff's laws?
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?
Best way to measure the Soil resistance of rocky soil, three probe method and four probe method
what is the mechanical safety of DG ?
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
how to calculate magnetic force genrated by a coil ?
explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?
I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.
What is transient Phenomenon?
How to size Air Circuit breaker (ACB)? What is the most important factors?
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803
How i can calculate current of cable according to ares?
