what is the efficiency of thyristor

0 Answers  

---

how we sesign the transformer give some specifion regarding design of transformers

0 Answers  

---

what is differance bw ELCB and MCB. ?

3 Answers  

---

why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?

2 Answers   Essar, LG, OPS,

---

what is the ground fault relay,which purpose it will be use,clearly tell me plz

0 Answers  

---

Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.

0 Answers  

---

Can we use a Potential Transformer for Auxilliary Power supply( Spring charge Motor, Lighting etc)?

1 Answers  

---

What happens to an electric motor if it has poor or no ventilation. Will it burn out? If it will, how long it will run before it burn out?

5 Answers   GMC,

---

what happens if we earth negative electrode of an rectifier transformer used in ESP. In which normaly positive is earthd from inside the xmer.

1 Answers  

---

What about Reactive power.and role of that one?

7 Answers  

---

HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

0 Answers   Areva,

---

we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

0 Answers   Syncom,

---