Answer / josyula

To keep the neutral steady in unbalanced loads. Else neutral will shift in unbalanced loads and with neutral shifting phase to neutral voltages will vary in all three phases.

To avoid that situation we will ground the neutral of DG and distribution trafos. This is called as System earthing.

Why are calling lagging power factor is a inductive load?

2 Answers  

---

Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

0 Answers  

---

why we generate 11kv power supply in generating station?

1 Answers   DBG, NTPC,

---

132 KV TRFO BUSHING BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?

2 Answers   MRF,

---

whether fibre optic cable in high voltage earth conductor is used for protection circuits

0 Answers  

---

Which state of India had first started power reforms?

1 Answers  

---

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

---

how can calculated the rating of the 11 KV transformer?

6 Answers   NBCC,

---

what are tpes of insulaors& its uses

1 Answers   ABC,

---

What is the role of a Production Engg in a Industry?????

1 Answers  

---

What is an infinite bus bar?

34 Answers  

---

can you give main difference between ELCB And RCCB?

38 Answers   MCB Bank, Reliance, Wipro,

---