Interested to Buy Any Domain ? << Click Here >> for more details...
If a manufacturer decribes a power supply transformer as
providing a secondary voltage of 24 volts when connected to
a 240 volts supply, do you think they are refering to the
full load or no load secondary voltage?
- 3 Answers
- 5334 Views
- I also Faced
- E-Mail Answers
Answer Posted / stefan
That is under full load. On no load the voltage may rise by up to 40% (small transformer, some hundred mA), or only 5% (large transformer, tens of Amperes). The manufacturer should be able to give specs about how many % the output voltage will rise at no load.
Diodes, capacitors, etc. of power supplies have to be able to withstand that higher voltage, in case there might be no or only low load on the transformer.
HTH
Stefan
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
plz send me the syllabus or any sample paper for engineer trainee recruitment if any,on ravinder911@yahoo.com
how can i improve the power factor in domestic (230v)
How To Convert Apparent Into Real Power Without Knowing Reactive Power?
What is the previous name of Cox's Bazar
How does a digital electronic meter work??????
What is 11 N1 and 12 N2 in single phase Transformer ?
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?
Circuit diagram of tube light without starter using electrical choke
I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com
What is advantages of VSCF wind electrical system?
In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.
what are the advantages and disadvantages of oil filled cables over XLPE cables
what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?
