Answer / shri..

suppose if we have 2 nos 500 KVA DG set & want to take the
power from both DG set at one busbar so will have to
synchroniz first its phase R to R, Y to Y, B to B, & also
will have to synchroniz its voltage & frequency

Answer / raghu

suppose if we have 2 nos generators set & want to take the
power from both generators set at one busbar so will have to
synchroniz first its phase to phase or phase to neutral.Means
it will check both generators voltage, frequency and phase angle.

Answer / bala.a

if we have two no of D.G Sets u can take supply seperately
with help of buscoupler in open condition and also u can
take combination supply with help of buscoupler closed
condition in a single panel

what happens when reactive power increases ? does the reactive power loss increase or decrease ?

2 Answers  

---

What is the name of powder which is used in inner side of a cable? and purpose?

1 Answers  

---

What is difference between earth leakage relay and restricted earth fault relay ?

22 Answers  

---

Wy transformer ratings are in multiple of 11 always?

2 Answers  

---

working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

4 Answers  

---

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

0 Answers  

---

define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

4 Answers   Siemens, VPEC,

---

how to measure the voltage drop in cables also give formulas to calculate.

3 Answers   Cable Wireless,

---

why the iron chains were hanged at the back or front of the trucks earlier which were touching the earth?

2 Answers  

---

How to calculate the size of cables (all minium/copper) for a particular load

1 Answers   BSL, Galaxy Power System,

---

Dear Sir / Madam, Actually we requied 64 A MCB, But i have 32 A MCB = 2 No's this two i have to make series connection and we usw any place? isit possible or not......

4 Answers   Hindustan Unilever Limited,

---

Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?

0 Answers   4T Technologies,

---