• BK series machine tools control transformers System 1
BK series machine tools control transformers

BK series machine tools control transformers

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
10000pcs pc/month

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1.Application
BK series machine tool control transformer is suitable for circuit of 50~60Hz, voltage up to 500V, usually applied as power supply for machine tool electrical appliances, local lightings and indicator lamps.

2.Structure character
According to different structures, BK transformer belongs to shell type, and according to the installation mode, it belongs to vertical type.

3.Working environment
1.Ambient air temperature: -5oC~+40oC, the highest monthly mean temperature should not exceed +30oC;
2.Altitude for installing place should not exceed 1000m;
3.When the ambient air temperature is +40, the relative humidity should not exceed 50%, and it allows higher relative humidity under lower temperature. Max average humidity in the dampest month is 90%, meanwhile the lowest average temperature of this month is +25oC, and condensation on the product surface caused by temperature change should be taken into consideration.

4.Specification

ModelOverall size(mm)Hole distance for installation(mm)Installation hole (mm)K x J
BmaxDmaxEmaxAC
BK-5076768361±0.454±35 × 12
BK-100849210070±0.460±2.56 × 12
BK-1509610511080±0.462±2.56 × 12
BK-25010512012588±0.473±39 × 11.5
BK-30011512512595±0.476±39 × 11.5
BK-400120130130100±0.480±39 × 11.5
BK-500134144150100±0.486±39 × 11.5
BK-700150150158125±0.4100±39 × 11.5
BK-1000150153160125±0.4110±3.59 × 11.5
BK-1500160240137134±0.4116±3.59 × 11.5
BK-2000189270145158±0.4122±3.59 × 11.5

TypeOutline(mm)Mounting size(mm)Primary voltageSecondary voltageWeight(kg)QTY/CTN
BK-25VA76×80×7563×44220V
380V
380V,220V,110V,36V,24V,12V,6V
(TO BE CHOSEN)
1.9716
BK-50VA85×90×8071×613.316
BK-100VA103×92×9587×695.512
BK-150VA103×100×9587×766.48
BK-200VA103×106×9587×817.38
BK-250VA115×110×13095×8496
BK-300VA115×115×13095×869.876
BK-400VA134×132×150107×9313.94
BK-500VA134×137×150107×9815.54
BK-1000VA153×149×168128×115252
BK-1500VA175×185×185140×135171
BK-2000VA175×195×185140×145211
BK-2500VA207×250×230168×163251
BK-3000VA207×250×230168×173281
BK-4000VA240×240×250200×160401
BK-5000VA240×250×250200×170411



Q: Do any adults play that game online anymore? I am 19, big fan of transformers since I was a kid watched the G1 series, Transformers prime, seen the michael bayfail movies and played all the games. I love TFFOC its a gream game, with great unique multiplayer and its in cybertron! I love it and can't wait for the next game as that will be on Earth!.I have been playing this game for quite a while now and everytime I put my headset/mic on and play a match online I always come across kids that are like 13 years old and get friend requests from them lol.Should I stop playing this game?
No. All the adults are playing The Last of Us multiplayer.
Q: i want to know what you think transformers 3 will be about i think unicron will want to eat cybrotron and decticons and autobots work to get her to protect cybertron
even if you do close your eyes whilst the Albert Einstein robotic is done it made me experience ill to my abdomen undesirable guy.yet different than that the action picture grew to become into candy Bumblebee and Optimus kicked butt. 8 out of 10 for me. R.I.P Wheeljack
Q: I am using an audio transformer in a schematic, but I don't understand why. Can someone explain how a 1000 ohm to 8 ohm audio transformer works? (Radio Shack #273-1380)
Isolation Transformer Radio Shack
Q: What is the meaning of the Y D11 on the transformer?
Transformer Y / D11 Y ----- primary side connection, star type, D secondary side connection, triangle 11 is the primary and secondary side of the phase difference of the side line voltage lag secondary side 330 degrees (or lead 30 degrees).
Q: Hi, I need a High Frequency( example~200khz) High voltage(200 000v) power supply at low microcurrent, I know that a Tesla coil fits the bill very easily . But I need to manually VARY the frequency(say from 100khz to 200khz ) while keeping the High voltage the same? Is this possible, Can some one guide me where I can buy or build this? Can I just for instance connect just a van de graaf or a rectified Tesla Coil to a function generator? If not what do I need to do to achieve what I want? I have been searching without help so your support is much appreciatedThanks
The Tesla coil needs to operate at the same resonant frequency on both the primary and secondary sides of the loosely coupled transformer. The resonant frequency is set by the inductance and capacitance of each side. The problem is there are no high voltage solid state capacitors (varactor diodes like you see in r.f. receivers that adjust the tank circuit frequency) on the primary side, and no way to adjust the top hat toroid capacitor on the secondary side (unless maybe it was a mylar covered balloon with vacuum deposited aluminum that could be remotely inflated or deflated). So you are stuck with whatever high voltage capacitor and toroid top hat you have on hand, and the inductance of the coils you wind that ends up being the resonant frequency. Even then it takes a lot of fiddling to get both in tune to give the maximum voltage output. The input frequency to the primary coil (the 555 circuit used in the step up with the flyback transformer- its frequency was chosen solely due to the flyback's frequency design) has little to do with the primary's resonant frequency; again that is set by the capacitor used and the size and number of turns of the primary coil.
Q: I have been reading wikipedia and have gotten confused.Va.Number of Coils on side a---- ._________________Vb.Number of Coils on side bwikipedia mentioned how power companys use transformers for converting to high voltage power li nes then use transformers to bring the voltage back down.Focusing on the transformer that jacks the voltage upwirea-[side a-Transformerxyz- side b]-wirebso assum wireb is the high voltage power line.--Which side of transformerxyz would have more coils ? My guess is that side b has more coils then side a--Is it safe to say that the wattage of side a is equal to side b?--they said something about magnetic flux, does this just mean that the material connecting side a to side b has to be magnetic?--they said that the insulation wears down in transformers over time due to heat. what is causing this heat?--they said something about leakage and spacing of coils, what does this mean?tyVVVVVVVm
The previous answer is correct, but the following may be helpful. A transformer works by the linking of changing magnetic flux produced by one loop or coil (the primary winding) with another coil (the secondary). That is why transformers only work with alternating current or pulses. Magnetic iron has the ability to increase the magnetic flux produced by a coil. This is called its magnetic permeability and can increase the flux produced by factors of several thousand or more. Leakage flux in a real transformer is the amount of flux produced by the primary that does not link the secondary. This flux is wasted and reduces the efficiency of the transformer. Heating of the wire insulaltion not only comes from the resistive heat of the windings, but also the heat produced in the magnetic material (core) of the transformer. These losses are called eddy current and hysteresis losses and can be quite substantial. The reason that cores of transformers are laminated (stacked thin sheets of magnetic iron) is to reduce the eddy current losses.
Q: i would like to know how transformer tap changer operate to vary the output voltage. And also why is always connected to the high voltage side of the transformer.
A transformer raises or lowers voltage based on the ratio of the number of coils of wire between the high and low voltage sides. The tap changer adjusts the voltage by changing the point of contact on one of the coils. Bypassing or including coils of wire changes the turns ratio of the transformer which by default will change the output voltage in direct proportion. Assuming you're referring to a tap changer under load Each step will either raise or lower the voltage by 5/8% or 3/4 volt on a 120 volt base. A reactor coil (yet a third smaller coil) is used during each step to temporarily carry the load so the contacts won't be damaged by arcing while switching. In other words, the lights won't blink during a tap change. A control panel constantly monitors the output voltage and automatically raises or lowers the voltage in an attempt to keep the output within its programmed bandwidth. Depending on the design, the tap changer may or may not be on the high voltage side.
Q: Transformer how to do no load test
The test voltage of the no-load test is the rated voltage of the low-voltage side. The no-load test of the transformer mainly measures the no-load loss. No-load loss is mainly iron loss. The magnitude of the iron loss can be considered independent of the size of the load, ie the loss at no load is equal to the iron loss at the time of the load, but this is the case when the rated voltage is present. If the voltage deviates from the rated value, the no-load loss and no-load current will change abruptly because the magnetic induction in the transformer core is in the saturation section of the magnetization curve. Therefore, the no-load test should be carried out at rated voltage. Note: In the measurement of large transformer no-load or load loss, because the power factor is very low, can achieve cosφ less than and equal to 0.1. So it is necessary to use low power factor watt table.
Q: i was just wondering, i've never really watched transformers growing up except for a few episodes and beast wars, but not enough to know whats going on. my question is, from the movie transformers and transformers 2 revenge of the fallen, how much does both movies follow the original series and what changes have been made? thanks [:
It pisses me of. Generation 1 would whip their @sses.
Q: I really want the transformer but if i buy it i have to wait for shipping. But on the other hand if i buy either one i have to wait 2 weeks for the other.
WTF? KILLZONE 2!!!! IT ISN'T EVEN A CHOICE!!!!!!!

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