How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.
1 2248why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?
1 2183why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
1 2999How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.
1 2103why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2 7489In an panel board if the outgoings are power plugs and motor equipments...what should we choose as the incomer of the of the panel board?? MCCB OR ISOLATOR?? Should we use ELCB protection??if so where??
2 4799How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
1 1964can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you
1 2074Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.
2 4163Post New Electrical Engineering Questions
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.
I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com
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)
what is a reactive power? what is the relation with power factor?
hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.
Why neutral point is consider as zero potential?
please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com
Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.
sir pls send the je exam - 2008 and other model question papers..
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?
how you will decide the distance between the power transformer and its fencing
as a electrical student why should i hire you?
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com
pls someone send me sample question papers along with the key.thanks in advance