Answer / aktharnawas

their are two type of earthing
1.Conventional Earthing
a) Pipe Earthing
b) GI Plat Earthing
c) Cast Iron plat Earthing
d) Copper plat Earthing
2. Maintenance Free EARTHING

Answer / sb

1. System Earthing
2. Neutral Earthing

Answer / jolly

1) Earth Neutral system
2) Insulted Neutral system

what is the temperature rise test? explain in brief.with formula.

1 Answers  

---

The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

0 Answers  

---

Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

0 Answers  

---

what is fault level of power system ?

2 Answers   Infosys,

---

Which level of the Transformer oil got dielectric strengh? And why?

0 Answers   HSL,

---

i need circuit star delta connection?

1 Answers   L&T,

---

I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 Answers  

---

what is rated current and operating current?

1 Answers  

---

Can We Apply DC POWER To Transformer???? And Why????

4 Answers  

---

what is bjt & mosfet? what is rectifier & diode?

1 Answers  

---

Why do series motors have high starting torque?

3 Answers  

---

XYZ

0 Answers   ASD Lab,

---