Why can not you store AC power in battery like DC power?

1 Answers   NTPC,

---

What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

0 Answers  

---

hi i have a 400kva transformer i want to know the test i can use to check on it thx

1 Answers  

---

which motor is used in our Indian Ceiling fan -Capacitor start and run or Capacitor start? (during repair i saw only one capacitor so it should be start only)

5 Answers   ABB, Bajaj Electricals, Power Grid, Ruchi Soya, Suzuki,

---

In stepdown transformer 11/415 volt two nos.(R & Y)HT side fuse is blown ,what will be voltage of ry,rb,yb in secondary side

5 Answers   NTPC,

---

flush point of transformer?

2 Answers  

---

my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

---

How do we calculate transformer oil in liter from the rating of the transformer.

0 Answers   BARC,

---

How power factor affect on bill explain with example.

13 Answers  

---

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

8 Answers   HAL,

---

I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 Answers  

---

Please provide me detail cable voltage drop calculation

1 Answers  

---