what are fluorescent lamps (fluorescent fixtures) & what are incandescen lamps (incandescents fixtures) ? differences between these two ?

1 Answers  

---

how do skin effect is reduced when hallow cond or stranded cond are used ?

1 Answers  

---

how we can improove power factor?????????

8 Answers   TATA,

---

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

6 Answers  

---

I am working on a 11KV system with fault current of 40KA for 1 second. I have selected 2500MVA 11/0.433KV transformer. How can i find the impedance value for this transformer? Please help me.

2 Answers   PPL,

---

how calculate gd2 of ht motors

4 Answers   Hindustan Copper Limited, Kohler India,

---

What is TR of AC?

11 Answers   Carrier, Reliance,

---

why 1.7Uo for HV cable Hi pot test?IE standard why?

0 Answers   ABB,

---

Everybody Knows What is ACB, VCB but anybody tell me what is ST?

7 Answers  

---

how is find out kwh step by step

0 Answers   Voith,

---

In Transformer testing at Shop test we normally test for vector group, open ckt.,short ckt. but what are the other test performed for transformer once it reaches at site.For e.g:if the transformer is dry having rating 1000KVA?

2 Answers  

---

when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

4 Answers  

---