Answer / gangadhar

Dear friend answer is in que only.
For 500mw generation you may use 4 nos 125MAV transformer or
2 nos 250MVA transformer.

Answer / umar

Taking power factor = 0.8
so MVA rating for 1 transformer will be =500 / 0.8 = 625 MVA
if three no. of transformers are used then rating of each
transformer will be 208 MVA.

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

---

cany anyone suggest electrical wesites for providing study materials?

0 Answers  

---

Why derating factor os applied on Cables?

0 Answers  

---

Where the ON LOAD TAP CHANGER is provided in the setp up transformer?

2 Answers  

---

can we start a 6.6kv ht motor with 415 lt supply

1 Answers  

---

---

sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

0 Answers  

---

what happen ,if generator will generate leading power factor?

6 Answers   CD, NTPC,

---

Why transformer, generator, ups rating kva?

2 Answers  

---

what is the transformer

5 Answers  

---

What is mean by Sub Synchronous Resonance(SSR)???

1 Answers  

---

If I fill the form of engineering services and I left the exam de to navoidable reasons . Will it counts my one attempt

2 Answers  

---

Squirrel cage induction motor has constant A slip B stator current C rotor resistance D speed at all load

1 Answers  

---