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 Categories >> Engineering >> Electrical Engineering
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Question Asked @ Answers Views     Select
In VVVF drive voltage is varying in accordance with frequency.My question here is How much will be the voltage in the inverter side if the frquency is set for 10Hz ?    1  1362
in transformer which grade oil will use?    3  2405
Why do we need ring main unit (RMU). what is its purpose and its advantages . what is the operating function of rmu    2  7226
What is NUMBER OF RUN for power cable means?    4  6111
we have taken HV test of 2.5 k and Megger test on 11 kv HT it shows no fault but when we are charging the same cable with 11 kv supply why the VCB 11 kv gets tripped can anybody define the possible cause of fault ? mahindra   3  2471
what is 11kv cable bscpl   1  1802
What is George phenomena to start the synchronus machine?    0  1637
1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?    0  332
how to create new innovation what are the supporting sources in the electrical field for Electrical engineers.....?    1  1090
why transmition and distribution and genaration of voltage in multible of 11 means 220v,440v,11kv,22kv,,, on    3  1578
At 765Kv, I have seen the use of PT at line side for metering and CVT for protection, although as far as my knowledge is concern, PT at this voltage level will have huge loss and more cost as compared to CVT as CVT can also perform same function of Protection and Metering? So my question is why use PT and not CVT for metering and protection in order to reduce the cost.    1  1019
How to determine stage of Automatic Power factor controlling Relay(Apfcr)? abc   0  438
Why RCD trips on connecting to one Socket but not trips one other circuit on same RCD.    1  992
what is speed of light?    8  2139
if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?    0  251
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Un-Answered Questions
 Question Views   Select
Please mention any books for electrical design load calculation for industrial,commercial(to select cable,breaker,bus bar,stator,) 850
what is the difference between torque induced and torque load?compare them with respect to dc motor? 276
How to Calculate the Fault Level of Electrical Installation 579
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india 283
How i can decide that HVDC line is best for transmission. 364
what is the differance between HT motors And LT MOTORS. 268
1sq mm dc powr cable can carry how much dc currnt 298
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation. 445
what is the significance of cabability curve of alternator 261
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one) 457
for 24000kv transformer what is the value earthing resistence? 129
what is PWM in IGBT and how it works for drive.? 63
internally connection of photvoltic module 225
How to calculate phase to phase difference ? 462
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