Answer / choudhri awais arain

vector group is important to use in case of parallelling of transformer.both transformer should have same vector group.
thn unbalancing of the voltages occure.

Answer / jayaram

electric curent have a some phase angle(phase to phase) so
used a vector form. it is used at which power have a
freqency

how the inductor will work on dc supply?whether it will work or not?

11 Answers   NTPC,

---

what is ground fault in ACB?

0 Answers  

---

Which is the best protection in case of shortcircut fuses or mccb ?

2 Answers  

---

What is meant by Floating Neutral? how to prent

7 Answers  

---

What are the protections for HT Motors?

1 Answers   BARC,

---

Fire pumps are not used with ELCB control, why ?

4 Answers  

---

what is motor contrl center .

3 Answers  

---

How to calculate Ith (I thermal) for curent transformer

0 Answers  

---

how to get electrical supervisour certificate in gujarat

0 Answers  

---

We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

4 Answers  

---

please let me know , we have installed two separate motor for fire fighting system 1) 60 hp and 2) 15 hp the load is 74 AMPS and 20 AMPS then tell me the main power cable in Aluminum will be what thickness , the length is 225 mt from the main utility to fire pump house

1 Answers  

---

WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

0 Answers   TCS,

---