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How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.
2072why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?
2047why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2878How 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.
1977why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2 7131In 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 4527How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
1827can 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
1943Hi, 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 3905Post New Electrical Engineering Questions
advantages and disadvantages of inverse definite minimum time RELAY
DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER
i have a 1500kVA transformer what is the kWH meter i need to use?
In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?
What is Fire Panel ? How it works ?
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.
What is the previous name of Cox's Bazar
i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?
how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021
Why syn. Generators are used for the production of electricity?
what is sustainable current of any conductors . a bare busbar or pvc cable has different sustainable current .
What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?
