Answer / mj

A. rotor resistance and reactance

what is the use of vcb & isolator in substation?

4 Answers  

---

Explain different types of d.c motors? Give their applications

0 Answers  

---

relation between power station capacity and voltage level?

0 Answers  

---

for a 5hp motor to operate from 100kva generator ,what size of cable required in sqmm.

2 Answers   DSC, Indraprastha Gas Limited IGL, UltraTech,

---

What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

0 Answers   DAE,

---

---

To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

0 Answers  

---

sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com

0 Answers  

---

why CERAMIC material is used in insulators??

1 Answers  

---

what is the meaning of trippe time of circuit breaker

1 Answers  

---

What are the transformer losses?

0 Answers  

---

What is oil temprature with A/T contacts in Transformer ?

1 Answers  

---

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,

---