What is the result of under frequency to the system.

4 Answers  

---

What is basic impulse insulation level? And how it is calculated for sub- station?

2 Answers  

---

Why indicate only 440V to 3-phase supply.

4 Answers  

---

can we use the same fuse for both ac and dc?

3 Answers  

---

Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader

8 Answers  

---

WHY THE TRANSFORMER VALUE MEASURES IN KVA INSTEAD OF KW.

4 Answers  

---

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

---

Classify milling machines.

0 Answers   Ashok Leyland,

---

what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

---

How I design capacitor bank for different load.7MW connected load.

3 Answers   Samtel,

---

what is meant by VDC ?where its applicable ?

2 Answers  

---

What is meant by directional power and reverse power relay ?

1 Answers   HAL,

---