Threads Tagged with transformers Thread / Thread Starter Last Post Replies Views Hi, I'm trying to figure out what phase differences take place with an ideal transformer. This is what I have figured... Feb5-14 11:56 AM Philip Wood 2 205 Classical Physics Below is the typical diagram of a Substation in which MIL and MIR are with TR-1 and TR-2 respectively. Where TR-1 and... Feb3-14 11:09 AM Babadag 8 369 Electrical Engineering If you apply 100 volts to a 10:1 transformer you will end up with 10 volts out. If you put a 10 ohm resistor on the... Jan16-14 11:47 PM Andrew Mason 1 172 Classical Physics 1. The problem statement, all variables and given/known data Hey there! I have simple problem: To start a spark in a... Dec26-13 06:59 AM NascentOxygen 1 269 Introductory Physics Homework the law of the transformer states that in primary coil , the EMF = -n multiplied by the rate of change of flux with... Dec19-13 11:03 AM Crazymechanic 3 362 General Physics I've been idly wondering about this question on and off for many years. In an AC transformer the load on the source... Dec12-13 01:33 AM Baluncore 4 430 General Physics I had a new slot car race track with step down transformer given to me by my Grand Parents for a birthday present. ... Nov19-13 05:47 PM smokingwheels 9 710 Electrical Engineering 1. The problem statement, all variables and given/known data We have a transformer with the primary coil carries... Nov12-13 09:22 PM Dick 1 282 Introductory Physics Homework 1. The problem statement, all variables and given/known data We have a transformer, the primary coil has 120V and... Nov12-13 08:37 AM gneill 1 407 Introductory Physics Homework Hi, I'm trying to comprehend the idea of why the induced current of a transformer decreases as voltage increases.... Nov5-13 03:44 AM Crazymechanic 9 419 General Physics Can anyone explain why saturation current and flux leakage are not related? saturation current = current where all... Nov4-13 04:00 AM NascentOxygen 1 355 General Physics So I've been wondering if anyone in PF could explain to me the reasons currents can either increase or decrease in a... Nov1-13 06:25 PM sophiecentaur 6 593 Electrical Engineering Hello, This is my first post, so I hope this is in the right section and format. I've looked all over the web,... Oct29-13 09:17 PM marcusl 2 427 Introductory Physics Homework Hello, I am currently working with mono phase transformers. I would like to know if there is an equation to... Oct29-13 05:22 PM NascentOxygen 3 420 Electrical Engineering Hello Guys !! While Studing coupling transformers i found this problem i tried to solve it but i don't know if... Oct29-13 03:36 PM gneill 3 295 Engineering, Comp Sci, & Technology Homework Hello, Is it true that when using transformers and three-phase drives/VFDs for induction motors, the transformer's... Oct24-13 08:11 AM elcraft 2 303 Electrical Engineering I know of multisim, but that is mostly fo rlow voltage applications. I need a schematics program like multisim, that... Oct1-13 04:42 PM EVriderDK 5 561 Electrical Engineering For a no load ideal transformer http://i.imgur.com/vufGi.jpg V1 is anti phase with E1? ... Sep7-13 09:39 AM jim hardy 2 8,150 Electrical Engineering Dumb question - if the phases are tied together in a three phase delta transformer why don't the phases short out... Aug2-13 09:00 AM Windadct 2 479 Electrical Engineering Before a few days ago I always thought that when transformers decrease the voltage, the transformers increase the... May20-13 08:22 AM sophiecentaur 21 22,290 Electrical Engineering Does anyone know what is meant by: 'determine the combined winding resistance and leakage reactance referred to the... Apr10-13 04:27 PM berkeman 2 665 Engineering, Comp Sci, & Technology Homework 1. The problem statement, all variables and given/known data I have got this scheme:... Apr7-13 02:58 PM rude man 5 563 Engineering, Comp Sci, & Technology Homework Looking for a recommendation of a book I can take out from the library at my University. I am looking for a book that... Mar26-13 06:07 PM sandy.bridge 0 702 Science & Math Textbooks The hysteresis iron loss is give by Ph = Kh*f*Bmax^1.6 And eddy current loss is given as Pe = Ke*f^2*Bmax^2 At first... Mar17-13 01:47 PM jim hardy 8 827 Electrical Engineering why often single phase and three phase transformers are widely used rather than other phases like four,five phases Mar16-13 08:53 PM jim hardy 13 932 Electrical Engineering How is that two hot phases can be put into a transformers and it not blow up? i have asked this question many... Jan20-13 03:26 PM Averagesupernova 1 408 Electrical Engineering Hi there, I've got a fairly simple question theoretical question about transformers and I suspect it stems from a... Dec10-12 02:07 AM yungman 2 560 Electrical Engineering 1. The problem statement, all variables and given/known data the smal transformers that power many consumer products... Nov27-12 05:11 PM berkeman 1 744 Introductory Physics Homework What types of losses can occur in transformers? Nov14-12 01:06 PM Michael V 5 415 Engineering, Comp Sci, & Technology Homework Hi, Can somebody answer this question? The induced magnetic field of the secondary coil opposes the magnetic... Nov12-12 05:00 AM p75213 2 607 Electrical Engineering How we speak about the coil of primary in phase of a versus secondary coil this is accepted (as there is on same... Oct14-12 08:51 PM Windadct 1 618 Electrical Engineering There is probably a very simple and obvious answer to this question, but right now it's just not clicking for me. So,... Aug14-12 03:05 PM -dove 14 1,146 Quantum Physics Hi, What does rated output in a transformer signify? Is power same(or almost same) on both sides? In short... Jul24-12 09:37 PM nik.jay.hil 4 1,488 Electrical Engineering Does anybody know if exist a kind of Insulation Monitoring Relay, to be Online (energized) all the time and be able to... Jul19-12 03:58 AM jim hardy 3 499 Electrical Engineering My first question is with the relationship between current and voltage. I understand how they are related... Jul18-12 06:45 PM pgardn 8 914 General Physics Hello, Suppose 2 single phase transformers have the following: T1 T2 Rated Current 200A 600A... Jun30-12 05:03 PM Studiot 1 371 Electrical Engineering When it comes to power plant transformers, What is the typical inductance and impedance on the primary winding? Jun23-12 12:40 PM jim hardy 2 678 Electrical Engineering How are described in the Industry those transformers able to operate with a variable frequency? These transformers... Jun7-12 07:59 AM Royherd27 12 2,005 Electrical Engineering 1. The problem statement, all variables and given/known data Ok so i was doing my revision for my exams and i was... Jun3-12 08:37 AM aznking1 4 1,226 Introductory Physics Homework I see a lot of these transformers that claim to do both step-up and step-down in the same unit. At least one had a... May6-12 10:09 AM jim hardy 13 5,066 Electrical Engineering