Why the isolation treasforfer are connected at out put of the ups ig 200kva ??????????????????

3 Answers  

---

Why reverse relay used

2 Answers   cpgn,

---

why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

---

what is the difference between star and delta connection?

3 Answers  

---

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 Answers  

---

---

What is the permissible value of earth resistance and as per which standard / act / rule ?

3 Answers   HBL Power Systems,

---

if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

0 Answers  

---

What is the meaning of Insulation H for transformers????

0 Answers  

---

Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control

0 Answers  

---

What is the different between earthing & Neutal

3 Answers  

---

How is a 100 MVA transformer cooled?

9 Answers  

---

is ac supply can store

0 Answers  

---