To determine the Healthiness of Insulation we will be performing Dielectric tests i.e Insulation Resistance test, Partial Discharge test,Switching Impulse, Lightning impulse, Tan Delta test ...etc why we required to perform this many test, why cant we do only one test. for Transformer, CT's

1 Answers  

---

what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 Answers  

---

what is the common earth

0 Answers  

---

what is the relation between the leading pf and supply voltage?

1 Answers  

---

What happens if we give the supply to the rotor of induction motor and make its terminal shorted?

2 Answers  

---

---

How to calculate the cable size in sq. mm. when the load is given in KW?

3 Answers  

---

Why do power lines not short out when they fall into water?

0 Answers  

---

What are all the problems occured while ac generator running in leading power factor at full load condition?

1 Answers  

---

1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

2 Answers  

---

can a 12v dg starting battery(150 AH) be replace by 6 nos of 200AH batteries each of 2v connected in series.

3 Answers  

---

what is is the potential diffrence between two phase ?

3 Answers   Bhel,

---

Difference between auxliary relay & pla relay

1 Answers   Reddy Labs,

---