Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method

0 Answers   UCC,

---

What is 100% protection of generator? Why 95% protection is used not 100%?

9 Answers   NTPC,

---

if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

0 Answers   Bhel,

---

Why the transformers making noise?

2 Answers   L&T,

---

Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

0 Answers  

---

---

why are the likely reasons for bochholz & pressure relays oprate due to a internal fault but not differential relay ?

2 Answers  

---

y we are used signal conditioner in capacitive transducer

1 Answers  

---

why the earth terminal of the three pin plug we are using bigger than the others?

2 Answers  

---

why tan delta test conducted in electrical equipmenr

4 Answers  

---

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

---

what happens in a genarator when rotor supplied with ac instead of dc

3 Answers  

---

Why transformer rating in KVA? and Generator also?

6 Answers   Bhel, IEEE, Toyo Denki, Toyo Engineering,

---