why stone used in Transformer yard.

9 Answers   Birla, Eskom,

---

What is meant by time harmonics and space harmonics?

0 Answers  

---

In radial network the source is fed from 1 end both ends at central

0 Answers  

---

I want to ask a question which i faced during testing of Capacitive Voltage Transformer in AIS. We have measured the C1 , C2 individually , but when we start to measure the total C1+C2 , the testing equipment shuts down and says low loading. Kindly is it possible to find the total capacitance by using measuring device. kindly briefly explain the procedure.

0 Answers   AIS,

---

What is restricted earth fault protection ?

1 Answers  

---

suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 Answers   ABB,

---

What is the difference between earthing,ground&nutral?

2 Answers   Bhel,

---

is harmonic useful or it distort the alternating quantity?

2 Answers  

---

What is the minimum value required for Neutral to Earth in UPS Panels

3 Answers  

---

I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

---

why the earth pin in a 3-pin socket is longer and thickest?

5 Answers  

---

the cheapest inducting instrument among all is a)pmmc b)moving iron c)electrodynamometer d)rectifier

2 Answers   APCPDCL, APEPDCL,

---