what is the defination of 'Mass' & 'Weight'

3 Answers  

---

how can we avoid magnetostriction in transformer?describe the suitable methods.

3 Answers   Bhel,

---

What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

0 Answers   PNG Power,

---

why does spark appears when we swith on the light

1 Answers  

---

Hi, what is 100 % stator earth fault protection and how it can be achieve by 3rd harmonics and low frequency injection principle ?

1 Answers  

---

WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

0 Answers   Siemens,

---

what types of fault occurred in transmission line ? which protection function senses the fault?

1 Answers  

---

we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

0 Answers  

---

line vltage of three phase distribution transformer is 433v and phase voltage is 250v,but we required 230v for domestic distribution,then how we reduce phase voltage of transformer

5 Answers  

---

what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.

0 Answers   Power Grid,

---

Vaccum circuit breaker

0 Answers  

---

to improve the existing power factor whether capacitors have to be added in series or parallel.and why

3 Answers  

---