why lightning arrester and other equipment earthing conneting from same earth bar ?

1 Answers  

---

Why electricity is generated and transmitted at the values of multiples of 11?

3 Answers  

---

HOW DO I CALCULATE OVER LOAD RELAY & CONTACTOR IN DOL STARTER? & in dol why it is require circuit breaker?

6 Answers   DLF,

---

What type of fittings and electrical accessories can be install in radiation area ?

0 Answers  

---

why tan delta test is carried out in the power transformer? which parameter are measure?

1 Answers  

---

will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?

4 Answers  

---

IAM GOING TO ERECT THE STREET LIGHT.,, I NEED HOW TO CALCULATE LUX., ILLUMINATION.,AND ALL

1 Answers  

---

How to select the rating of the Transformer?

2 Answers  

---

Why D.C Voltage used in Meggering...as well as in Hipot test? why not A.C?

2 Answers  

---

What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

0 Answers  

---

can you use 400 volt 3 phase and neutral and earth equipment on 440 3 phase and earth supply safely and if so how?

2 Answers   Maersk,

---

If you have an earth with pilecap then your resistance is really low. why and how?

0 Answers  

---