Answer Posted / pavan

p.f=KW/KVA
KVA=KW/P.f

What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2266

---

When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

1451

---

which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

1064

---

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

1931

---

how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1167

---

---

Draw the line diagram of diffretial relay connected to transformer?

1966

---

wat is d diffr btw shunt coil and trip coil in VCB?

2353

---

Difference between drift current and diffusion current?

1315

---

how to calculate slip ring induction motor stator and rotor currents??

1738

---

What is the function of electron gun assembly used in crt?

655

---

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1215

---

How to work meggar?

1374

---

what is cogging and crawling

2017

---

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

1859

---

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

1485

---