Knee Point Voltage and Current Transformers
2009-09-23 17:22:00 dear friend, kindly any one explaine me what is the effect of knee point voltage in CT. If one PX Class CT having Vk>300V, Ia<30 mA how i calculate this CT BURDEN also what is the primary current when th ct is satsurated, thanking you, yours , B.JEY
Small Transformers
2009-09-21 22:08:00 I know I probably should know this one, but I'll ask anyway. If the primary of a small transformer is connected to power, how much current is running through the primary when the secondary is open? Say you have a 40VA xfmr; at 120 volts, the current would be .33 amps. Is this constant whether the se
Fault Current for Multiple Transformers in Single-Phase App
2009-09-18 17:24:00 My customer has started constructing a building without properly checking the the hydro in the area. Subsequently the utility only has single phase 14.4KV and the customer' requires 325KW of power, I know single phase what a nightmare!!! I'm the electrical contractor and I'm proposing that
Transformers and Impedance Percentages
2009-09-17 14:24:00 On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?
1000 KVA Generators and 500 KVA Transformers
2009-09-16 08:08:00 I would like to know the statutory requirements for installing the 1000 KVA generators and 500 KVA transformers.
Current Transformers and Bidirectional Sensing
2009-09-14 11:20:00 Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction
How core losses are calculated in transformers?
2009-09-10 11:56:00 Is this possible to calculate core losses in transformers? & How? Transformer rating: Primary Volt/Current = 22KV/56Amps, 2MVA Secondary Volt/Current = 433V/2700Amps
Core Losses in Transformers
2009-09-10 11:56:00 Is this possible to calculate core losses in transformers? & How? Transformer rating: Primary Volt/Current = 22KV/56Amps, 2MVA Secondary Volt/Current = 433V/2700Amps
Medium Voltage Transformers.
2009-09-10 11:17:00 There is urgent need of pumps and motors for one of our site and best we could source is 60HZ motors of 4.16 KV,now we have utlity supply of 11 KV 50 HZ.which transformer should i use 11 KV/4.16 KV of 50 hz or 60 HZ.What will be the cause if i use 60 hz on 50 hz and vice versa.
Distribution Transformers and Power Transformers
2009-08-13 06:30:00 What are major customer complaints in the distribution & power transformers ?
paralleling transformers
2009-08-08 01:32:00 At the open point of Lt is it possible for the two sources to phase out and have different phase sequences. Thank you
Transformers
2009-08-07 08:30:00 hai.....there is possible to construct the transformer in various rating..
Transformers v. Decepticons - Petitioner?s Brief In Bilski
2009-08-06 19:08:00 Background Petitioners Bernard Bilski and Rand Warsaw filed their Brief For Petitioners last week in what could be this decade’s watershed patent ruling. The patent at issue relates to a method for managing risk when buying or selling energy commodities. The law at issue is whether a process must: 1) be tied to a particular machine ...
By: Blawg IT
Wye Delta Transformers
2009-08-01 16:24:00 I need to establish the IMAX when i have three transformers each of 50KVA so thats a total of 150KVA wired wye delta at 12KV 230/115V i know the calculation has to be with √3 (1.732) but am unsure about my answer.
Calculate Losses in transformers
2009-07-30 14:59:00 Independente of the brand of the transformer how to calculate losses in transformers ? The power power consumption is mesure ( By the supplier ) in hight voltage just before the transformers cell, we have after each transformer power counters to mesure the power consumption . Obviously the mesu
Calculating Losses in Transformers
2009-07-30 14:59:00 Independente of the brand of the transformer how to calculate losses in transformers ? The power power consumption is mesure ( By the supplier ) in hight voltage just before the transformers cell, we have after each transformer power counters to mesure the power consumption . Obviously the
Lighting transformers....
2009-07-28 15:50:00 In old systems dating back to 1980s have separate lighting transformers feeding to the switchboards lonely for the purpose of lighting & other auxillary supplies....???Is it for the purpose of isolation? or to increase the efficiency by adjusting the voltage levels through tap changers?
Lightning Transformers?
2009-07-28 15:50:00 In old systems dating back to 1980s have separate lighting transformers feeding to the switchboards lonely for the purpose of lighting & other auxillary supplies....???Is it for the purpose of isolation? or to increase the efficiency by adjusting the voltage levels through tap changers?
Transformers Details.
2009-07-19 16:30:00 Dear sir, We are planning to procure a 1000kva , 11kv / 440 volts, out door type, oil coolled Power transformer(industrial use). Please suggest the other details (including all safety systems)which is to be mentioned while getting the quotation for the same form the different companies.
Tariff Metering With Earthed Voltage Transformers
2009-07-12 06:20:00 I did believe that when the above was first published on 16Feb09 that someone from all the experts available in this forum might comment. This contentiious issue has large financial considerations. Nothing of note has been received. I would be glad to receive even a constructive
Current, Differential and Power Transformers
2009-07-11 16:13:00 Hello, I want to ask if anyone knows the equations required to calculate what current transformer size to place on a power transformers neutral, and what differential transformer size to place between the low and high ends of the power transformer. Thanks
Indian Celebs Hot Pics from Transformers 2 premiere
2009-07-10 21:42:00 Transformers 2 premiere Pics.
Centerless transformers and power return
2009-07-10 03:06:00 Now that you collectively cleared my thinking on how 240v household is derived, I ask the following; The neutral, or common line is ostensibly there to complete the circuit back to the source of generation. How then does my welder function with just 2 hot leads going into the transformer and a
Earthing Transformers
2009-07-08 15:47:00 we have 33 KV, ZnO, 400A for 30 sec, earthing transformer. it is used for artificial neutral earthing in 220/33KV,YNd1 trafo delta side. Can any body tell me what is the procedure for vector(Zno) group testing in that trafo?
Nuevas Nike Transformers
2009-07-06 21:50:00 La fiebre de Transformers llega hasta nuestros pies. Y es que Nike acaba de lanzar al mercado, en edición limitada, las nuevas zapatillas deportivas Nike Transformers. Parece que el reciente lanzamiento de la nueva película de Transformers ha motivado su salida al mercado. Cuenta con una caja conmemorativa, un diseño bastante retro y unos colores muy cantosos. ...
By: Bitperbit
Box office blog: 'Transformers' messes 'Up' summer
2009-07-06 20:16:00 Sure, the 2009 summer movie season wasn't going great. "Land of the Lost." "Night at the Museum 2." "The Proposal." Not exactly films to be proud of.But at least we had "Up," a terrific film that was the summer's top-grossing movie. But nooooooo, Michael Bay had to demolish the image of smart, thoughtful American moviegoers with the loud, dumb and dull "Transformers" sequel, much like he destroyed memories of the first, better, entertaining "Transformers."Yes, to this point "Up" has made approximately $265 million, while in only a couple weeks of release "Transformers: Revenge of the Fallen" has earned upwards of $294 million. You don't earn that kind of money on Megan Fox's image alone. That suggests people just have an...
Weekend Box Office Tie for ?Ice Age? and ?Transformers?
2009-07-06 06:34:00 Weekend Box Office July 3 - 5, 2009 Ice Age: Dawn of the Dinosaurs - $42.5 million ($67.5 million) Transformers: Revenge of the Fallen - $42.5 million ($293.5 million) Public Enemies - $26.2 million ($41.0 million) The Proposal - $12.8 million ($94.2 million) The Hangover - $10.4 million ($204.2 million) Full Box Office Totals
HV Transformers and Primary Sides
2009-07-05 23:23:00 can high voltage transformer ie 11 kv / 132 KV 63 MVA be energise from primary side ie from 11 kv side while 132 kv side breaker is closed on dead bus .On primary side 11 KV is coming from diesel engine of 15 MW rating. at the time of energising transformer the out put of engine is about 1 MW.We can
Power Transformers and Temperature Rise
2009-06-26 12:10:00 i want to perform test on power transformer like TEMPERATURE RISE TEST, vector group check test, sc test etc. please give the standard procedure according to IEC standared.
Wiring Current Transformers in Series
2009-06-25 19:56:00 why we have to wire CTs in series. If we have two sets of 2000:5A CTs wired in series, what ratio we use in the Relay
Transformers 2: Revenge of the Fallen
2009-06-24 17:50:00 OK the first one was awesome and now the 2nd one, Revenge of the Fallen comes out today. I think this is one you might want to see in the IMAX thearters! Can’t wait! Let me know what you thought of it if you saw it. addthis_url = 'http%3A%2F%2Ftodayshottopic.co-m%2F2009%2F06%2F24%2Ftransforme-rs-2-revenge-of-the-fallen%2F';- addthis_title ...
By: Today's Talk
Vector Groups and Single-Phase Transformers
2009-06-24 10:50:00 Tell me about the vector gruoup of the 6.6/0.215 KV single phase transformer. I read it is "Lio" but i am unable to understand it. Please define it?
Megan Fox Dazzles At ?Transformers 2? Premiere In LA
2009-06-23 20:51:00 Actress Megan Fox looked absolutely stunning dressed in a beautiful white Greek goddess gown to attend the premiere of the new ?Transformers? movie, ?Transformers: Revenge of the Fallen?, held at Mann Village Theatre in Los Angeles on Monday (June 22). Amongst the special guests were co-stars Shia LaBeouf and Josh Duhamel, happily expecting couple Kendra Wilkinson ...
Transformers Revenge of the Fallen
2009-06-23 06:31:00 I just bought two tickets for the midnight show of Transformers Revenge of the Fallen tomorrow. Actually it starts at 12:01 am on Wednesday, but yeah you know what I am talking about. JT’s sister is going to pick up the twins from school and they will spend the night with her. I also have ...
Transformers and Rated Capacity
2009-06-18 12:52:00 What is selectiion & Designing procedure for a DG/Transformer of rated capacity
Megan Fox ?Transformers 2? Premiere [PHOTOS]
2009-06-16 08:16:00 Megan Fox looking fabulous at the premiere of ‘Transformers 2 - Revenge of the Fallen’, in London. Ok, I love Megan, but to be honest with you, I’m starting to get a little burned...
By: Celebrity Smack!
TAN DELTA TEST FOR POWER TRANSFORMERS
2009-06-12 12:06:00 Hi all please elucidate the procedure of pan delta tests of Power Transformer and the results of the same
TV3 ?Transformers? Online Contest
2009-06-11 17:40:00 Calling Transformers fans ! Come joint the TV3 “Transformers” Online Contest now to win the Transformers cool products plus movie tickets to watch Transformers : Revenge of The Fallen screenings at on Sunday 28th June 2009. Just answer 10 questions and complete the slogan “Its more than meets the eye between Transformers and TV3 Kids ...
By: contest
TYRESE AT THE TRANSFORMERS PHOTOCALL
2009-06-11 17:07:00 Tyrese was spotted at the Rome Photocall for Transformers: "Return of the Fallen"I can tell Tyrese is really loving Rome. He is kissing roses and everything. :-) I actually follow him on Twitter and he really loves communicating with his fans. He has twitted alot of extra pics while he is staying in Rome.Follow him at www.twitter.com/Tyrese4RealTyre-se with Producer Lorenzo Di Bonaventura, actors Josh Duhamel and Ramon Rodriguez
By: Ghetto Fabu
Megan Fox Sexy Black Dress At ?Transformers 2? Seoul Premiere
2009-06-10 14:55:00 Sex bomb Megan Fox and her co-star Shia LaBeouf attended the premiere of ?Transformers 2? aka ?Transformers: Revenge of the Fallen? in Seoul, South Korea on Tuesday. The 23 year-old actress flaunted her svelte figure in a simple tight black dress that would be appropriate for church on Sunday if it wasn?t for its revealing see-through ...
Hermetically Sealed Transformers
2009-06-09 18:27:00 In hermatically sealed transformers. In the transformer oil tank if there is some space let for oil expansion . Since it is hermatically sealed transformer there should not be an air gap in the transformer oil tank if it is so the oil will oxcidation process... Kindly advice abt this
Fuses and Potential Transformers
2009-06-08 15:01:00 why fuses are not provided for potential transformers on HV Side above 11KV.
Transformers: Liquid Dielectric or Not?
2009-06-05 19:21:00 Its me again, the eternal paper pusher trying to make sense of the technical jargon on my papers. I have a question concerning electrical transformers. The tariff I deal with breaks these into 2 categories, liquid dielectric and other. When I put that question to my customers I usually get
VIDEO: Scena de 90 de secunde din Transformers 2
2009-06-02 16:37:00 Megan Fox si Michael Bay au fost prezenti duminica pe scena MTV Movie Awards pentru a prezenta un video in premiera. In timpul premiilor MTV a fost prezentata o scena din unul dintre cele mai asteptate filme ale verii: Transformers 2: Revenge of the Fallen. FILMETARI va prezinta, in premiera pentru un site din Romania, secventele ...
By: Movie Reviews
SMPS Transformers
2009-05-29 08:47:00 is there any method o check smps transformer. because the resisance of all coils are almost same. if here is any solution to this please give me.
Disconnecting Ammeters from Current Transformers
2009-05-29 07:47:00 What are the steps that would take before disconnecting ammeter permanently supplied from a current transformer?
Super Cool Transformers Ravage flash drive
2009-05-24 15:11:00 Super Cool Transformers Ravage flash driveI have nothing but fond memories of my Transformers toys when I was growing up, but even with impressive additions like the Dinobots or SkyLynx, my hands down favorite transformer of all time was Ravage. Why? Because he folded up into an innocent looking micro-cassette that allowed him to be smuggled anywhere.Sadly Ravage’s stealth was also his downfall because one day he went missing, and was never seen again. But my memories of Ravage will now live on thanks to this transforming USB flash drive. It’s available for pre-order from the BigBadToyStore for $42.99 (eta September 2009) which is actually pretty expensive for a 2GB flash drive. Still, even if it only came with 128Mb on board I bet it would still fly off the shelves. Source: Ohgizmo |
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