what is meant by vector group of a transformer? How can it be derived?

0 Answers  

---

If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

0 Answers   Posco,

---

what is the difference between brushed alternator ,brushless alternator & permanent alternator ?

1 Answers  

---

quantizer means?

0 Answers  

---

How we can come to know the substation range,without go through any name plate ?

0 Answers   CG,

---

---

what is mean Boost voltage and what is working principle of Tube light

2 Answers   Trimax,

---

Is it alright to connect more than one RCCB of same rating in series for a three phase equipment?

3 Answers  

---

a solenoid of inductance 250mH and resistance 10ohm is connected to a battery. the time taken for the magnetic energy to reach 1/4th of its maximum value will be?

1 Answers   SSC,

---

in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

0 Answers  

---

Transformer not operated in dc ! why?

10 Answers  

---

can we coorect P.F. OF 320 KVA ALTERNATOR AT LOCAL SITE WITH RATED .8 PF LAGGING.

1 Answers  

---

How many points can we have in AC Circuit? Show by giving suitable example?

3 Answers  

---