what is meant by insulation voltage in cables? explain it?

4 Answers   ABB,

---

why usa use 60hz and 110v?

2 Answers  

---

how power saving takes place through VFD?

9 Answers  

---

Why Humming noise originated in Starter motor and how it was generated ?

3 Answers  

---

What is chopper

1 Answers   Enercon,

---

To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?

4 Answers  

---

what is the speed of the darkness?

3 Answers   Wipro,

---

If a capacitor bank is having rating 750kvar for 6.6kv. Then for 3.3kv how much will be the rating of capacitor bank.

1 Answers   OCL,

---

For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?

1 Answers  

---

what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

0 Answers  

---

What is the function of lead sheath?

2 Answers  

---

Squirrel cage induction motor has constant A slip B stator current C rotor resistance D speed at all load

1 Answers  

---