Answer Posted / harish

Q=v*V/X;
X=7.74;
Q IS DIRECTLT PROPORTIONAL TO V*v;
HENCE PERCENTAGE INCREASE IS 480*480-440*440/440*440 =19%
 SIMILARLY FOR 525VOLTS THE CHANGE IS 42.36

If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

2204

---

How To Convert Apparent Into Real Power Without Knowing Reactive Power?

1798

---

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

1425

---

What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

2696

---

two way ckt diagram can be drawn by how many ways? give diagram

1778

---

why chock were used in old tubelights but are not newest tubelights?

1970

---

Pl. give me checklist for installation & commissioning of machine tool.

2317

---

All tape of electrical questions Answers tape of motor transformer e.o.t crane

2666

---

whatis the commertial spec. of distribution boards ?

2085

---

briefly explain the main blocks found in a microprocessor based system

2208

---

Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response

2928

---

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1889

---

What are the temperature elements?

1252

---

Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

1157

---

how to calculate short circuit current for the busbar

1519

---