Answer Posted / joban

p=VxI/1000 in singl phase

p=root3xVxIxCosphi/1000

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

1767

---

what is the star delta connetion and how can do it a three phase motor with control witing with picture

1814

---

Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

2156

---

1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

1693

---

Why are lt windings placed near the core?

657

---

---

what is plunger and what's the use of it in motor alignment?

2018

---

explain comutator action in detail.thanks

1744

---

What are the advantages of vscf wind electrical system?

650

---

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1535

---

by what factor the starting current is used when comparing star and delta connection for motor starting?

1587

---

What are the types of windings according to the construction?

610

---

How to calculate flow of water delivered by pump when pressure & size of pipe line is given

1788

---

How Calculet The UPS AH In Load

1235

---

Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

3825

---

How cmd is calculated in case of energy neters

1382

---