Answer / guna

we have to apply three phase voltage only..bcoz,for
transformer rated voltage is 220kv not 230v.we can check in
l.v side also.

how does it help for selection of a transformer.

0 Answers  

---

1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

---

What is ht lt switchgear.

3 Answers   Bhel, HBL Power Systems,

---

What is meant by positive and negative feedback?

0 Answers  

---

We have three 33kv substations. All of them energised by same source.When i am checking the phase sequence between one substation to other substation (like R Phase to R Phase) by multimeter i am getting some voltage.Near to LT panels UPS panels are there. Can u explain whether any possible to happen like that. In Phase SEquencemeter is showing correctly in both substations. How is it happen. Explain me.Explain me communication signal will produce Phase difference on this case.

3 Answers  

---

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 Answers  

---

how the frequency was generated in power station

2 Answers  

---

what are RCBO ?

4 Answers   GE,

---

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

0 Answers   Bhel,

---

how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

---

what is the difference between neutral and earth

0 Answers   LOreal,

---

why transmission line towers are longer than communication line towers?

3 Answers  

---