Answer / manikandan

amps rating it means load is one of the important procedure
for selecting the cable,breaker and transformer

Answer / anuj

mostly cable size is selected according to the load equipments,it is depend on the equipments, if my equipments is three phase ,so the current is difference from the single phase equipments,in a three phase circuit , 1 mm2 three core copper cable rating 4-5 amp.,and aluminium cable is taking only 2-3 amp. only.temperature of the atmosphere where we use it, is very important for the right cable selection

Answer / guptar48

Amps rating is correct for selecting cable. but my question
is that what is the equition to calculation of cable or
wire size as per load requirement.Exam: total load is 4Kw
then which size cable will be required?

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

0 Answers  

---

A synchronous machines has higher capacity for (1) Leading power factor (2) Lagging power factor (3) Does not depend upon the power factor of machine (4) None of the above

2 Answers   JSW,

---

what is current

8 Answers   NTPC,

---

what type of protection and safety req. in the 220kv substaion and area around the substation

2 Answers  

---

How to calculate the current carrying capacity of electrical cables

16 Answers   Barqaab, Grasim, Havells, HM Cables, Janapriya, Polycab,

---

HOW MUCH MAXIMUM CURRENT TAKEN BY NEAUTRAL IN 125 KVA DG SET

1 Answers   KOC,

---

How do we calculate the Out put voltage of generator, after the excitation is being given?

0 Answers  

---

How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?

0 Answers   VECL,

---

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

0 Answers  

---

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

---

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,

---

roles of owslaw explain?

3 Answers   BSNL,

---