why only dc is given as excitation...why not ac???
- 2 Answers
- 4516 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / manikumar agcet
If excitation is dc then it is
easy to vary output voltage&
powerfactor.
| Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
Mention the methods for starting an induction motor?
HOW DOES THE ELECTRONIC ENERGY METER WORKS?
What is open loop and control loop systems?
We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.
what are the range of memory address in plc for L&T lx7 4A
what is x'mer ,isolation x'mer & yltra-isolation x'mer?????
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
What is the difference between voltages or potential difference? And what are they?
How to operate a ac chilar plant?
What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?
Batteries. What is the difference between Lead and Nickel batteries ?
Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?
