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how to distinguish between ac motor and dc motor without seeing name plate of it.only seeing its getup look
3 10887when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?
1 2774why are we adopting 132kv,220kv for transmission rather than using 440kv at all transmission lines as it gives lower losses?
2 6896what is the difference b/w KVA and KW? the transformer are mentioned KVA rating and the loads are mentioned KW.why?
2 3656ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
1 2453iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]
1 2710Post New Electrical Engineering Questions
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com
please send me latest & previous years question papers for IOCL Technical level questions
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.
what is meant by IGBT how they differ from tyristor ?
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)
please send me the previous year's question papers of jindal GET exams
Please send 110 kv sb station full single line drawing(sld)
Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A
i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.
please send me previose rrb junior engineer qustion papers
i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately
