Answer / ahmed

3phase 3wire with out nutral
3phase 4wire with nutral

Answer / mohammed mushtaq

3phase 3wire meter employ 2 watt meter method while 3phase 4wiretmeter employ 3watt meter method to measure energy

Can we inject more current in ct primary paralleling 2 loading transformers/Injection kit at a time?let ct ratio be (5000/1A)(per kit rating 2000A range),i need to inject 5000A,if this cant b done means wat is d optional?

1 Answers  

---

What is the difference between Floot charge and Trickle Charge.

1 Answers   Torrent Power,

---

define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

4 Answers   Siemens, VPEC,

---

what is the name for a meter/tester to measure the paint quality in electrical panel or wall?

1 Answers  

---

What is the differance between a converter duty transformer and normal power transformer?

1 Answers   Bhel,

---

how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  

---

Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

1 Answers  

---

what happens when the supply frequency to the tube light is reduced to 25Hz....?

5 Answers  

---

how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

1 Answers  

---

HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER

1 Answers  

---

Is ground earthing required for neutral conductor of a prime mover ie DG set?

1 Answers  

---

How to calculate u.p.s load parsentage plz give me formula

1 Answers  

---