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
- 5120 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
what is effect of length of air gap on performance of dc motor and generator?
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?
does any one know where we can purchase insulation oil for high voltage oil filled cables
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
Which device of PlC does share load between DG sets when DG are running in perallel?
why the name trunking bus PT
y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
how is working bearing heater?
what are all types of cross section in AC cables?
What is the settings of distance protection relay in 400 kv line
how to calculate the tarriff for an industry whose kva demand is 10 mva
We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?
Pls explan the OLR setting in VCB at HT yard
what are the usual topology of transformers at different substations in the power system and why that particular topology is choosen. what are the limitaions of that topology?
What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.
