Arp
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Replied #Threads
What are the gate preparatories to be done for electrical engineering?
hey.. for the electrical engineering GATE, i suggest you to prepare the core subjects and engineering mathematics very carefully. Get the questions and pattern idea from...
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Suggest me how to prepare for gate exam
To get into the Public sector, its important to get into Top 100-200 around in the GATE Exam. Being an average student, I would suggest you...
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How does reactive power linked with system stability?
what i think is that if reactive power is more drawn from a line than compensated then its true voltage profile deteriorate and undervoltage relay may...
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which motor is used in which application?? e.g. Fans, pumps etc
first i want to correct u. capacitor run motor in fan. traction need high starting torque so we need dc series motor as prob of sparking,etc...
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which type of motor is used in fan??
its not capacitor start capacitor run its only capacitor run motor. we cant afford centrifugal switch in fan so c start c run not possible at...
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First Year Electrical Engineering - General Question
in the first year or first semester hopefully machines not come to u. so i recommend to u to read the basic laws of physics. specifically...
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Induction Motor
if u want to know machines really, i recommend P C sen fitzerald or m g say only. i know u may have difficulty in directly...
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Making Electricity from a Ceiling Fan
yr the power u produced by the fan is not at same frequency at which u give electrical power to the fan. also due to the...
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Electrical motor + 3 phase transformer wiring & assembly
if u can, post the picture of motor rating plate.
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Electrical motor + 3 phase transformer wiring & assembly
I'll want to try this firstly from the motor rating it is showing that they should be single phase induction motor. but say STAR connected so...
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Software related to Electrical Engineering.
start with any of these two as i know for circuit simulation
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Software related to Electrical Engineering.
there are many Matlab, pSpice, etc. what u want to know?
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Ohm law
have you not ever come across varistors or non-linear resistors or lightening arrestors. we can have material to follow ohm law only in the range we...
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which type of motor is used in fan??
in domestic fans only capacitor run motor single phase used now. previously it was split phase single phase induction motor synchronous not used in fans as...
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How to know the VA rating of a transformer
no math behind it just logic what i know is the line voltage rating of the different rating alternators. from there u can know the kva...
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How to know the VA rating of a transformer
As an example, if the voltage rating of two sides are like 11 kv and 220 kv indicates it is a generating transformer so its rating...
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How to know the VA rating of a transformer
not possible to tell the exact VA rating of the transformer given. but if given the Voltage then u can decide whether it is coming inthe...
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wireless Electricity project block diagram
give more basic info about your project. what is it all about? perhaps then we can help you in a better way
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Best Reference Book For Electronic Devices And Circuits
can Refer Sedra And Smith available as a free ebook also
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Current in the neutral wire of 3 phase system
do the phasor sum of current not scalar
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using only 3 phase AC source device, explain how to control the speed of dc motor
method listed above are used only for load torque in positive direction and braking only with reverse speed. to control the speed from 0 to rated...
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Power plant engg discussion
improvements in rankine cycle 1) increase in steam pressure at boiler inlet 2) increase in steam temp at turbine inlet 3) decrease in condenser pressure 4)...
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Power plant engg discussion
@ godfather sorry i dont know about plasma plant what all i've studied in nuclear is much less so far. you'll start discussion on this topic...
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Power plant engg discussion
thermal power plant is based on rankine cycle. ideally it should be on carnot cycle but because of the practical limitations of the carnot cycle like-...
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Know Your CEan - freak16
nice interview freaK. 10. Suppose you got 1 crore in lottery, How would you like to spend? Palak : Since the amount i got is through...
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Transformer - Learn and Contribute
some brain storming transformer questions just for quick revision Q1 why we use transformers? you are not suppose to tell only for step up and step...
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Transformer - Learn and Contribute
freak last answer we would like to have from u!! regarding protection relays for transformer. reply it soon... 😀
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Transformer - Learn and Contribute
harmonics are those waves which oscillates with different speeds and thus having different frequency as compared to that of fundamental. even harmonics are not present in...
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Transformer - Learn and Contribute
freak we are waiting for your next set of questions. @ praveen, 😀
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Transformer - Learn and Contribute
Q1 The tank is connected to the atmosphere through the wind pipe. on which brether,etc are placed. its function is to exchange the air with atmosphere....
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Transformer - Learn and Contribute
freak, distributing transformer can be of high capacity even. although we dont have to stop plant,etc but we have to switch off power supply of all...
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POWER SYSTEMS : Learn and Conribute
Q1 loads are distributed everywhere but we have a limited generating points. so loadbuses are more around 80% as buses connected to loads are called load...
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Transformer - Learn and Contribute
for Q3, all difference freak u say is due to the capacaity difference. if one is of higher mva then we have to use forced cooling....
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Transformer - Learn and Contribute
some brain storming transformer questions just for quick revision Q1 why we use transformers? you are not suppose to tell only for step up and step...
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Transformer - Learn and Contribute
percentage impedance gives the total power loss and represents the per unit impedance conditions- correct polarity, same volt ratio and same volt rating, samex/r and same...
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Transformer - Learn and Contribute
here come the turn of transformer winding: cylindrical,helical,diuble helical,multilayer helical, cross over, disc and cont disc, aluminium foil windings based on current rating, t...
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Transformer - Learn and Contribute
Transformers are of two types based on their construction:- Core type Shell Type the most vulnerable part of transformer or any machine is insulation. in insulation,...
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Anything and Everything you know about brushless excitation in Alternators
guys, i've just read the whole posts in this. what u all say to keep a dc generator is not a method for brushless excitation and...
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Anything and Everything you know about brushless excitation in Alternators
to start the generator, residual magnetism is one option. but in the beginning when machine have to start at the first time then there is no...
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metal vs hole/SCHOTTKY DIODE
freak is right.. holes are just the vacancies of electrons. and in some metals as we say conduction band is fill so there are holes we...
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C++ project topic help
guys, i dont have to make any hardware. only a software program based on c++ ( called as project). it is not like final year project...
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Boiler accessories
optimiser i suppose whatever u say it is absolutely right ishu but it is especially there to reduce and have a control over the temperature of...
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dual power supply in Differsntial amplifier..
it is used to get the linearity in the system only using the semiconductor so as due to heat(which is always produced by any means and...
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help on power amplifiers!
because we have select the q point exactly at the centre and thus having conduction angle of 360degree fully.
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how do i make my electromagnet stronger...
i dont suppose operating voltage in parallel across electromagnet will help u. as voltage is still remains the same of one battery. even as two battery...
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Highest power of 3 which exactly divide 10!
its standard formulae (10/3)+(10/9)+(10/27)+..... take only integers...
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You've got just 5 seconds to answer this!
i answer it as infinite as it is not mentioned to where we've to go.
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Power factor corrections!!
according to me, for a small firm if you install pfc they are nothing but synchronous phase modifiers so if u designing a small kvar compensation...
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diode voltage marking
i dont know but if it is so,, guys please answer this.. we all should know this..
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Emitter Base Junction doubt
i understand the question it perhaps is why we need less biasing voltage for base emitter of order of <1 volt whereas need high voltage of...
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Difference Between Transistor and Op-Amp?
BJT used as differential amplifier is heart of operational amplifier.. opamp is a linear device provided with gain by using an another bjt configuration to provide...
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electricity tariff In KWH or in KVA
in homes obviously kwh as pf for domestic usage is not so low.....
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Smart grid - the upcoming concept in electrical engineering
from this, i have understand about its very basic only.. can u please elaborate it?? how the signal is sent from the consumer end and how...
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paper presentation
you can go for nano technology.. as i know you cant be strong in concepts in first year go for some sort of general vast and...
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Capacitor Positive and Negative
<a href="https://en.wikipedia.org/wiki/Electrolytic_capacitor" target="_blank" rel="nofollow noopener noreferrer">Electrolytic Capacitor</a> this may help u
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Summer Training In Delhi
Re: PLZ HELPppppp........ bel, drdo are good option i suppose
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what is the implecation when a main distrubution panel reads negative KVAR
i dont know inside details of that but from my basic knowledge what i suppose polarities with which it is connected to mains is not correct...
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Inside view of DC generators & motors
fitzerald i also read but very limited. its language not seems to be difficult to me perhaps because i've read pc sen machine part completely thats...
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Harmonics in electric supply
no not al all it is only one of the problem due to harmonics.
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How to come up with a project idea on your own - Common Sense Guide
@ the_big k give me some detail about the web based transformer designed service? this topic is new for me. give me some sites which u...
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Diploma level project for electronics !!
go for electronics4u.com it has a list of many electronics project.. with circuit and programming given
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Harmonics in electric supply
i've no great idea about compressors. but from the best of my knowledge compressors use single phase induction motor and as IEEE Standard 519-1995 provides a...
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What is FIR relay in Transformer
High impedance faults (HIF) are faults which are difficult to detect using standard overcurrent protection relays for earth and phase fault detection.
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How the protection of transformer can be done using SCADA
vipul is right scada is the only thing which show u all readings in a control room and from where u can change where settings only......
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Question about transformer rating
transformer is rated in kva because what we want to know from the rating of a power transfer device is only about the losses practically speaking...
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What is FIR relay in Transformer
FIR (Finite Impulse Response) filter banks recognize the distortion of the voltage and current waveforms caused by the arcs usually associated with HIF, by yielding 3...
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Transformer Winding
Re: transformers think if lv wdg is on one limb and hv on another then there is a lot of gap in bw two wdg due...
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no iductors in IC'S
inductors are not used due to their bulky size. we can use gyrators if u want.
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how electrical layout design is done in thermal power plant or industrial plant?
you can refer any book on power plant engg. even pk nag and jb gupta has it
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Why do you want to study Electronics and Electrical Engineering
i think for what i can say without electricity we cant even imagine the world and i'm here to defeat the power crisis.
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Inside view of DC generators & motors
IF U want to have good knowledge of dc machines or any machines then refer MG SAY or PC SEN(ESPECIALLY FOR CONCEPT) if u want to...
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Harmonics in electric supply
this is from the best of my knowledge.. what i suppose as u r using APFC pannel so due to the automatic switching operation it should...
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Marshalling box in a transformer
thanks marshalling box is now clear will you please also tell about oil surge relay in the transformer?
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load factor v/s diversity factor
diversity factor is ratio of sum of individuals max demand to gen statin max demand
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load factor v/s diversity factor
load factor is average load on a power plant divided by max demand
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Marshalling box in a transformer
what is heater switch? for what heater is used and tell me some also about contractors?
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Generator Loss of Excitation Relay (40G).
sir, please tell me about the oil surge relay of transformer? its working i'm not getting?
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Generator Loss of Excitation Relay (40G).
@khaled are we using Brushless excitation for synchronous generator anywhere yet now? i know its costly but it eliminates the commutation problem totally.. shouldn't we should...
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