Answer / guest

minus all the positive ito negativthe vale of the man and
women are equal to th eresult

How to calculate percentage impedance of a power transformer.

1 Answers  

---

our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage.

3 Answers  

---

What is excitation?

2 Answers  

---

what is the avr

6 Answers   ArcelorMittal, Heidelberge Cement,

---

When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,

---

i want to trigger ATS (Mains +Generator )from external system could any body help me in this regard ?? is it posible if yes please tell me how?

1 Answers  

---

What is the difference between "Earthing" and "Neutral"?

10 Answers   Power Grid,

---

what is principle of DG

5 Answers  

---

What is the formula to calculate the no load current of a single & three phase induction motor

0 Answers   HCL, Nokia,

---

When we need up only in o/p 440v, so why we use directly in 11kva in input?

0 Answers   Lupin, Medhaj Techno Concept,

---

Dear sir, please tell me how many day use CTPT transformer

1 Answers   Daya Engineering Works,

---

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,

---