Answer / sheikh

This is not possible that vcb power contacts make and supply would not reach on out put. although vcb can make the contact without supply either input or out put.
vcb is a mechanically operated switch.

Answer / sheikh

VCB is a mechanically operated switch hence it may be operated without any supply either input or output.

WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

0 Answers   TCS,

---

I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??

0 Answers  

---

why use generator Earthing/Graunding.

4 Answers  

---

what is difference between start imitation and start interlock for 3 phase motor protection ?

2 Answers   OPS,

---

Classify milling machines.

0 Answers   Ashok Leyland,

---

How to convert a two phase power into a three phase power in induction machine?

0 Answers  

---

What is resistance reading of earth copper rod with grid and without grid?

0 Answers  

---

my question is Megger of cable insulation or swgr board meggerring some values in one day 50mohms,some other day checking different values(20Mohms). this tell that some person tell that that values ok. how to identify the megger value is correct. pls tell me the answer.

2 Answers  

---

ALL HT /LT PANEL TEST? DISCRIPTION.

0 Answers   Essar,

---

cable armor

3 Answers  

---

What is the difference between AC Drives and DC Drives?

14 Answers   College School Exams Tests, La-Gajjar Machineries, LG, Schneider, SMEL,

---

prefer any good electrical engineering book.....it should be useful in the practical fied?

1 Answers  

---