Answer / reddy

core based transformers are used in high voltage and low
current application.. to save the insulation and copper
(btwn hv and lv insulation)

is the value of inductance depends upon the evalue of thitha in doubly excited machine?

0 Answers  

---

11 KV Power cable end earth connection insulation got burned wht is the reson pl give the resons

2 Answers  

---

Draw transformer phasor diagram.(full load,no load)

0 Answers   PowerTech, Trine,

---

What is referred to the electron in the outer orbit?

0 Answers  

---

How i can calculate the cable size for given load,there is any formula,for 3 phase and single phase

2 Answers   Prescient Technologies,

---

What is reactive power?

7 Answers   Suzlon,

---

carbon zinc cell voltage?

3 Answers  

---

How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?

6 Answers   ABB,

---

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 Answers   ABB, Adani, Central Electricals, Electrical, HCL,

---

A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

---

How we can calculate the capacity the Air Condition capacity? like 1 or 1.5 ton's, What is the means of volume of Ton's in capacity of Air Compressor? Why in ton's,? not any other Volume?

2 Answers  

---

Does Lightening arrest requires Earthing?..

5 Answers  

---