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in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
1 2347why HT motors are earthed only at equipment side & for it's single core cable with aluminium wire armoure using?
1 4410why Batteries & Battery chargers are used in substation? what is the different between UPS & battery charger?
DLF,
4 53042In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?
1 4370which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
1 2246what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
1 2183why we always consider Bulkage due to the voids only for the Fine aggregates not for the Coarse aggregates
3 9642
Can any one please send me the hpcl question papers or pattern for ece branch please mail to sweetyastweety@gmail.com
I am in need of question set of ONGC Electronics & Communication
sir most regardly i want previous papers of your company for my preparation of my written exam
what is the 0 value in quantity surveying
i m selected in AAI JE. my interview is on 25 sept. 2010. i don't hv any idea abt aai interview. can anyone help me, i want to know interview qus of aai. so pls help me... my e-mail id -- mailmanish_kumar@yahoo.co.in
Hey guys anyone plzzz tell me the syllabus for Vizag Steel Plant (IT & Mechanical Streams)........ And Aslo plzz send the materials or previous papers of vizag Steel Plant Management Trainees for both IT & Mechanical Streams......... plzzzzzzz......... Plzzzzzzz
i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately
pls send me model paper of NPCIL for executive trainee. and syllabus of executive trainee 2015.
hiiiii sir ..tell me the written test pattern for symphony teleca.....pleaseee
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.
i need modal Q. paper of junior enjineer for 1/2009 rrb ajmer exam cat no. 11 jell electrical thenkyou
• What is your weakness?
What are the different methodes for calculating the short circuit Current?
Explain the approximate cost of the following corrosion monitoring systems. Smart pebbles eci-1(embedded corrosion instrument) monitoring cables time domain reflectometry &corrosion penetration monitoring system(cpmp)?
Hello sir, I am Rajaram. I have finished DME (Diploma in Mechanical Engineering). I would like to attend BHEL supervisor examination. So i want which type of questions can i prepare. & give previous supervisor examinations questions. Reply my mail (rajaramsptc@gmail.com)
