when we given 3 phase supply to ups system, but out put comes with 3 phase + neutral how it possible? pls explain.

3 Answers   Enzen, Juniper Networks,

---

WTA used cb?

0 Answers   Tagros,

---

what is isolation Transformer?

8 Answers   HP,

---

how to calculate the knee point voltage of current transformer?

2 Answers  

---

sir, What is the purpose in Generating power plant is operated Lagging PF and Above 0.9 lag PF?

3 Answers  

---

One 15kw motor Why we used star delta feeder?why not used DOL please explain in details

3 Answers   BMM Ispat, GSK, Pitti Laminations,

---

1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

---

please give some hindalco placement papers for written exam

0 Answers   Hindalco,

---

Explain The Application Of Storage Batteries?

0 Answers   ABB,

---

What are the advantages of skewing of cage rotor conductors?

0 Answers  

---

What is Rough Balance Busbar Protection

1 Answers  

---

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

15 Answers   Bhel, Sail, Sterling Telecom, TCS,

---