How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?

1 Answers  

---

Hp to Kw and Kw to I(amps) conversion......

3 Answers  

---

what is power factor

4 Answers  

---

Which is remain unchanged in transformer action?

6 Answers   NTPC,

---

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?

5 Answers   Vedanta,

---

What is power factof?

21 Answers   RRB,

---

For group 1 , 2 whather i have to prepare my technical or general studies etc? and im graduate in ee engg. for wht posts im eligible for? please tell me!

0 Answers   Maruti Suzuki,

---

how can 3phase motor speed can be controlled without vvf drive?

1 Answers  

---

dear friends, we are use 130 hp load run with 0.98 power factor ( 38KVAR capacitor connected ). if we need improve the the power factor to 1 (unity). how much kvar capacitor to be add. have any formula? please share with me.

3 Answers   Reliance,

---

Draw the DOL starter and star delta starter drawing?

0 Answers   Danfoss,

---

WHAT IS THE REASON FOR LOW VOLTAGE IN HOUSES?*

1 Answers  

---

derive the e.m.f equation of transformer

2 Answers  

---