Answer / gaurang bhavsar- jr. asst. ele

Elect. Power(3-ph)=1.732*V*I*p.f.Now,
2h.p.=2*0.746=1.492=1.5 kw. So, If a voltage system of 3-
ph,415V, 50 Hz is taken, assuming a p.f. of 0.8 then--
1.5=1.732*0.415*I*0.8 which gives I=2.6085 Amp of normal
current. The starting current will be approx. 3 times of
normal current i.e.-7.82 Amp.

Answer / kanchan mukherjee

p=1.732*v*i*.8
p=2hp=1.5kw
v=415
1.5*1000=1.732*415*i*.8
i=1500/1.732*415*.8
i=2.7 amp.

Answer / rajagopal

2Hp=1492Watts

I=1.732x415x0.8 =575.024

575.024/1492=0.38540482
0.385x1000 =3.85

Answer / rajasekar.a

3.85

What are the Safety measures in central chiller plant? Explain them?

22 Answers   Carrier, CPIC, HSL, JLL,

---

What happens when two positively charged material is placed together?

0 Answers  

---

How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 Answers  

---

State any two nuclear power stations in India, with their generating capacity.

0 Answers  

---

Explain about Leakage Test.

0 Answers  

---

if 1hp jet motar drop voltage when start from 220v to 120v give the reason and solution.

1 Answers  

---

How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

0 Answers  

---

How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

3 Answers   Powermec, TATA,

---

if earthing is used in place of neutral how the circuit completd.

7 Answers   Epitome,

---

I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

1 Answers   Mukand,

---

what will happen if neutal in AC ckt will get open

3 Answers  

---

How do we calculate tranmission line losses of a 132 KV tranmsission line. Please give some quick tips?

2 Answers  

---