Answer Posted / ashok mishra

just to create 2 phase thus produces rotating magnetic field caused by capacitor resister. . .

what is invertor supply and raw powersupply

2091

---

What is the meaning of floating point earthing in battery backed systems ?

2006

---

What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

3004

---

what is the meaning of 0.5ohm Resistance

1842

---

what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?

2691

---

What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

2029

---

What happened when voltage will half value of current ...

1589

---

what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

2343

---

what is the transformer rush current?

2063

---

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

1147

---

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

2650

---

HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

2484

---

what are the Alarm, Trip & Safety equipment (Issues) present in Power Transformers pls Mail it to ashokbabunhce@gmail.com

1895

---

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2295

---

I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok

1654

---