Answer / guest

the inductance does not come into play in case of dc motors
as the reactance will become zero since the frequency of dc
is considered zero. hence we neglect the inductive drop.

Answer / jay

inductive drop is neglected because we study the steady state behavior rather than transient. since an inductor becomes shorted in steady state condition.

I have a one P.F meter in my factory showing 2 phase leading and one phase lagging then what is my actual P.F.

1 Answers  

---

how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?

1 Answers  

---

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

---

Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

0 Answers  

---

What is meant by pitch of a synchronous machine.??

1 Answers   Kirloskar,

---

Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

---

Disadventage of cable-gland earthing if any ?

0 Answers  

---

what happen when we add mentos in cold drink?& why?

0 Answers  

---

For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

1 Answers   L&T,

---

We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.

1 Answers   ARDE,

---

why 6.6,11,22,33,66kv? what basis they have considered?

5 Answers  

---

What is the specification of service line (ie from electrical post to cut out) used by electricity boards used in india.i mean which material,its size etc.. please give the answer at lalkishan.p@gmail.com

0 Answers  

---