What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

0 Answers   Indeco,

---

Why do we twist copper to make cable?

3 Answers   Bhel, Integrated, MR Cables,

---

What is the difference between circuit breaker and isolator

0 Answers  

---

can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

0 Answers   UPSC,

---

In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

---

What is the suitable rating of MCB for 1.5 Ton A.C and why? 1Ton= how many amperes?

5 Answers   BARC,

---

what is differnce btwen lll and lllg faults

0 Answers  

---

what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

0 Answers  

---

how is reactive power controlled on the transmission system

2 Answers  

---

what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

0 Answers  

---

List examples of voltage source?

0 Answers  

---

How frequency meter measuring frequency? What is the principle of frequency meter?

2 Answers  

---