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
- 5374 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 are the classifications of heating element?
hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz
should %impedance be high or low in a power transformer? if so why?
Why we use mho Relay in long transmission line?
I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com
Good day everyone,currently in our premise we using 30kw slip ring motor with resistance bank which we use as forward and reverse at conveyor bar handling. So,my question is how do we calculate the resistance bank which is suit the motor. Kindly,assist me... thank you
Why strting torqe high in inducation motor?
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
battery capacity use of made?
How to set the relay,,??
What is the function of the circuit breaker failure relay?
What are the advantages of a three-phase system over a single-phase system?
State nyquist stability criterion.
what will happen if synchronous machine rotor fed from single phase ac supply
what about electrical pannel.? What is meant by plc pannel.?
