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 Categories >> Engineering >> Electrical Engineering
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Question Asked @ Answers Views     Select
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ? siemens   2  2684
How 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.    0  306
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ? siemens   0  1162
How we can come to know the substation range,without go through any name plate ? cg   0  182
why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?    0  198
Why did call copper as a electrical conductor? abb   1  679
How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.    0  354
Why positive terminal of DC 48V was earthed?    1  1430
if one potential missing in energy meter , how much % slow the energy meter? ntpc   1  1734
what is suitable cable for 25 HP motor ? start with VFD ac supply 50 hz mac   2  2022
What is difference between VCB and SF6 breaker    4  2167
how can we select the rating of Load break switch that is connected to the primary protection of 200 kva 11kv/415v distribution transformer?? step by step calculated answr pls...thnk.u maruti-suzuki   2  2117
16kv transformeris stolen in my village.and department is not taking action.then what should i do.any shortcut .please help any idea    1  839
Is it possible to connect a dYN1 transformer in parallel with a YNd11 transformer.    4  3116
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Un-Answered Questions
 Question Views   Select
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done) 469
explain wiring system 623
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 615
how to find impedance , mutual indatnce in transmission lines 363
what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/ 316
Write a note on Treatment for electric shock. 230
Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me the answer of my question as the earliest as possible. 400
The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor? 243
specify the inbuilt protections in DG 251
How to check the LM324 Ic 3428
can any one provide me a connection wiring diagram for a DG set control panel along with BOM? 386
what is the aircraft voltage and frequency standard ? 707
What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop. 574
What is the real function of reverse power relay in generator panel while syncronising? 275
How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles? 199
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