Answer / k.prakashchandra

Conductor is open or no continuity without earth fault

Answer / nizam

ground to earth fault

What is the need of ISOLATION Transformer?

1 Answers  

---

What are the different types of VVVF Drive ?

2 Answers  

---

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1 Answers  

---

I BOUGHT A HAVELLS ACCL WITH GENERATOR STOP FASCILITY(i.e- BASICALLY IT IS A AUTO CHANGE OVER SWITCH) FOR MY HONDA EXK 2000S HOME GENERATOR (WHICH START IN PETROL & RUN IN KEROSENE). ACCL HAS 8 POINT. 2 FOR MAINS(PH & NUE), 2 FOR LOAD, 2 FOR GEN AND 2 FOR IGNITION POINT(X1 & X2). THE IGNITION POINT IS SPECIALLY FOR AUTO ENGINE STOP WHEN MAINS POWER RESTORE. I CONNECT THIS X1 & X2 POINT TO THE GENERATOR STATER MOTOR & EARTHING POINT. BUT WHEN MAINS FAILS THE GENERATOR COULD NOT START, BUT WHEN DISCONNECT THOSE X1 OR X2 POINT, THEN THE GENERATOR START. BUT WHEN MAINS ON THEN THE GENERATOR SHOULD START, AND WHEN I OFF THE MAINS THE GENERATOR AUTOMATICALLY STOP. PLESE HELP ME HOW I STOP THE GENERATOR AUTOMATICALLY WHEN THE MAINS RESTORE.

2 Answers   Honda,

---

why are we using multiples of 11 in substation.

2 Answers  

---

can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you

0 Answers  

---

why we not using 230kv directly why we are stepping down and then stepping up

2 Answers   Siemens,

---

what is blocking diode and what is the use of it in tne control circuit.Pls Explain it.

1 Answers  

---

what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers  

---

What test must you do before powering up a circuit that you have been working on?

0 Answers  

---

how we calculate electricity unit ( meter unit.. for knowing how many charges) from on motor load.?

2 Answers  

---

can we use trip light with bus coupler?

0 Answers  

---