do you know measure the earth resistance?explain

1 Answers   Dalkia,

---

Is it necessary to place tap changer in secondary winding or we can use on both sides?

3 Answers  

---

what is purpose of using neutral grounding transformer in generators??

1 Answers  

---

how will you find out the fuse failure by remote operation?

1 Answers  

---

Dear all i want to know FEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me shibin_75@yahoo.com

1 Answers   FEWA,

---

In a Tap changing transformer where is the tap connected , is it connected in the primary side or it is connected in secondary side

8 Answers   Indiabulls,

---

difference between local breaker backup relay or backup protection relay ?

1 Answers  

---

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

0 Answers  

---

How can we calculate the fault level of the distribution system knowing the percentage impedance of transformer & subsequent equipments.

14 Answers  

---

why co incidence factor considered in transformer sizing?

0 Answers  

---

Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

---

what is the function of supervison relay?Draw its wiring diagram.

2 Answers   IBM, R.R. ISPAT LIMITED,

---