Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

---

why using carbun bresh in dc motor

3 Answers  

---

what is settable hystersis protection? If any body knows plz kindly post the answer..

0 Answers  

---

why we did not get shock by touching +ve OR -ve busbar (Which are going to supply cell voltage) of Rectifier- Tranformer in electrolysis plant?

4 Answers  

---

Why Delta Star Transformers are used for Lighting Loads.

6 Answers  

---

is oil viscosity affect on motor current?

0 Answers  

---

why we are using the ac supply in domestic purpose why don't use dc supply

6 Answers   Airtel, SSIL,

---

what is meant by cbct elr?

3 Answers  

---

How does a television work?

0 Answers   Siemens,

---

I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

0 Answers  

---

A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

0 Answers  

---

1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.

1 Answers   Simbhaoli Sugars,

---