what is tan delta measurement?..... why that terminal is earthed.....?

4 Answers   Power Grid,

---

what is the diff. btwn. electronic regulator and ordinary rheostat regulator for fans?

3 Answers  

---

What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

1 Answers   ABB,

---

Transformer how to maintaince a check b check c check d check

0 Answers   DIC India,

---

why in power staions distriution r like 11kv,33kv,66kv in india?

4 Answers  

---

---

Why 9KV surge arrester having 7.65KV of MCOV?

0 Answers  

---

If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive

0 Answers  

---

What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?

0 Answers  

---

how we identify AC or DC machine at the time of seeing, with out use of name plate?

4 Answers  

---

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

0 Answers  

---

what is the earthing condition between earth & phase.

3 Answers   ABB,

---

what is mean by potential and potential free contacts

2 Answers  

---