Answer / thran

3.15 kw.... 1 ton a/c...

Answer / k.prakashchandra

Current 5.6 to 6.1 A and power 1.25 t0 1.4 KW as per data
supplied by the manufacturers. For calculation you have to
study non- electrical subjects like thermodynamics also.

Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

1 Answers   Grasim,

---

What would be the ratio of a Delta-Wye tranformer having 48000 volts phase to phase on the primary and 4160 volts phase to phase on the secondary?

5 Answers  

---

How to calculate the Harmonics losses in terms of cost/unit.

1 Answers  

---

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 Answers  

---

What is transmission line potential gradiant?

1 Answers  

---

how to identify conection leads of an unknown electric motor

1 Answers  

---

what are factors to be consider to design a HT & LT motor?

1 Answers  

---

can we use 3 phase UPS for Motors and Other Machines

4 Answers   ACC,

---

how many joint can done in HT line and what is life of the joint

1 Answers   Micro Labs, Reliance,

---

what is lxr?

0 Answers   NTPC,

---

Explain in brief description about the operation of DG sets.

1 Answers   Siemens,

---

what are the things that can cause a three phase motor to crawl?

2 Answers  

---