Answer / saleem

IS : 3043 - 1987

If a line which is drawing approximatly 2100amps what should be earthing streep size(using galwanize streep)?

2 Answers  

---

which electrical supply used for long distance traction 1.1-ph 22kv a.c 50hz 2.2-ph 22kv a.c 50 hz 3.dc vtg 4.1-ph 22kv 150 jhz

3 Answers   Power Grid,

---

Application wise, where we should use AC motors and where we should DC motors?

1 Answers   Nespak,

---

1.what type of oil used in tranformer. 2.oil vesocity. 3.oil gauge. 4.witch time oil filterring & how much temperature maintaned.

9 Answers   NTPC, Reliance,

---

What is meant by class of CT&PT?

1 Answers  

---

what is per unit impedance?

3 Answers  

---

I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME

0 Answers  

---

In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.

1 Answers  

---

How reverse power relay sense the power is reverse in the system.

2 Answers  

---

how system voltage affect the power factor or vice-versa.

4 Answers  

---

why ac wave is sinusoidal not square or triangular wave what will be reason

1 Answers   ACPL,

---

What is ONAN/ONAF1/ONAF2 for transformer cooling

5 Answers  

---