Answer Posted / sukhvinder

differential relay which operates on two or more similar
quantities i.e voltage,current.

in this relay under normal condition, no voltage flow
through coil i.e vi+v2=0 but in abnormal the differnce of
two voltage i.e v1+v2 will not equal to zero. so that
voltage will flow through the coil further protection of
equipment/devie/system etc.

1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

2129

---

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1914

---

What are the three major categories of error?

1200

---

I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.

1455

---

What is essential to prove safe isolation of electrical circuit?

1059

---

what will be the effect if you were using different brands of outlets?

1901

---

How can I calculate ISF of current transformer?

3608

---

WHat is the general checks required for Dry type transformers

2065

---

If one lamp connects between two phases it will glow or not?

1070

---

how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

2271

---

which book to refer in electrical engineering for iocl exam & which book for general english.

2219

---

how 650 volts creates? where is use?

2184

---

Why does the rotor rotate?

2238

---

What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

2039

---

what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.

5519

---