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
- 5206 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
What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
What are the limitations of Kirchoff's laws?
kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
what is meant by impulse voltage?
.php|
Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?
What is the difference between a verilog task and verilog function?
how does an encoder work???
What is a compensator?
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
Write down the name of 2 lady Bir Pratin of Bangladesh
what are the interview question asked in wind mill about electrical
10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)
