Answer / s.arul

power in DC circuit P = V*I
P = 12*4000
P = 48000 WATTS
so wanted power = 48000 watts
so, required KVA in DG set
KVA = POWER/POWER FACTOR
=48000/0.85
=56470.59 VA
=56.47 KVA
SO,REQUIRED KVA IN DG SET = 57 KVA (APPROX)

Answer / k.prakashchandra

Charging current required is 10% of AH.So 12 x 400 watts
minimum has to be the capacity of the DG set i.e. minimum 5 KVA

Answer / k.prakashchandra

Minimum 5KVA

HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

0 Answers   ANZ,

---

what should be 3phase motor capacity or rating to connect in star connection. what should be 3phase motor capacity or rating to connect in delta connection. what should be 3phase motor capacity or rating to connect in star delta connection

1 Answers  

---

can we install LT panel & HT panel in one room?

1 Answers  

---

What is meant by soft starter used in motors?

4 Answers  

---

How to calculate per unit impedance of transformer?

0 Answers  

---

what is 6 pulse and 12 pulse inverter? Explain brifly

2 Answers  

---

why substation ratings are multiple of 11 means 11\33 kv substation

6 Answers  

---

how we can use resistance heating for any domestic purpose???

2 Answers  

---

If one 10 Hp 3phase induction motor connected in 380volt 50Hz. and again its connected to 380volt 60Hz. howmuch currrent and power take on both time?????

1 Answers  

---

what is reverse power relay brief explanation and in b/w where it is connected

0 Answers  

---

What is RTCC panel and why it is required

31 Answers   RTCC, Tivoli Grand,

---

can I connect 25KvA stepdown transformer(RYB-440V,UVW-240V) to the output of 15KvA,3-phase online UPS(440V phase to phase)please brief.

1 Answers  

---