S9-M-30~2500/10KV Three Phase Oil Immersed All-sealed Power Transformer
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S9-M.R-30~2500/10KV three phase scrolliron core distribution transformer is suitable for distribution system with 10KV.50HZ for industrial and mine enterprise and power illimination.
It confirms to GB1904<power transformer>standard.
- Q: Audio output transformer
- If you don't want to buy one then rent it. There are a lot of electrical and electronics shops online that offer such service.
- Q: Electrical Machinery, Electric Machines, 3-phase transformers
- If by 3-phase bank you mean an array of two or three separate single-phase transformers, wired to handle 3-phase voltage changes, the 3-phase transformer will require less iron and copper to handle the same power.
- Q: I have a question can someone explain why transformers get hot in use and why must they not be allowed to get too hot
- Of course a transformer must use AC voltage and current. Power consumed is calculated as P EI (volts x current). Even if the transformer is not connected to a load current must pass through the coils of wire. Although the resistance of the wire coils is minimized (where thick copper wire has less resistance) to obtain the needed effect many turns are required and thick wire may not be practical. The transformer will exhibit a heating effect equal to its I2R (current squared x resistance) losses.
- Q: I have a 240 to 12 volt electronic transformer for each 50w halogen bulb. Trying to track down a fault, I tested the transformer with my multimeter - it showed 240v input but showed zero v output so I concluded that the transformer was faulty BUT when I plugged in a bulb it lit up normally. Can anyone explain ??
- Different kind of voltage. Did you switch your multimeter to read DC voltage? Most lighting ballasts are ac output (like fluorescent or metal halide). In the case of mr16 50w light bulbs typically power is 12v dc output from either an electronic or magnetic transformer. Magnetic is heavy iron with copper wound like a typical door bell transformer. Electronic is smaller and lighter using circuit boards to convert the voltage. In both cases it will be DC. Something else to consider is worn contacts where the bulb connects. And m16 bulbs don't last very long. Oil from your hands will shorten their lifespan even more. Also poor heat dissipation through the fixture. I've worked with a lot of the types of fixture you're speaking of. (usually 4 recessed cans but also pendants and track fixtures)
- Q: I have an RCA 46 inch projection Tv model p46924 that doesn't turn on. Someone said I probably need a new transformer. What is it? What does it do? Where is it located?
- Unless the someone was an experienced TV Tech you can take his ( or her ) diagnosis with a very large pinch of salt ! To answer your basic question though what is a Tv transformer ? I will list a few transformers that can be found in a TV set.! Mains AC transformer already described by TV Guy ! Sound IF transformers ( 2 or 3 ) Vision IF transformers Power supply switching transformer ! Line drive transformer . Flyback Transformer A couple or so in the tuner unit. No doubt I have missed a couple and will be picked up on it by the other TV Techs who may decide to answer this question but you get the idea don`t you !! Cheers Pete To be fair Adrian he did say with other circuitry . Cheers Pete
- Q: i have plenty of 3 phase 220 in my shop, but one of my machines requires 440 3 phase. i was going to use a 75 kva transformer with 440 primary 220 secondary in reverse to supply the machine. it is a 15 hp motor 40 amps. i figured my minimum kva requirment to be 37.5 but more cant hurt for the potential high cutting rates i may need to achieve. i simply wanted to buy the transformer, hook the 220 3 phase supply to the primary, and the output to my machine. I think this will provide me with 440 output. the motor plate says 7-1/2 hp/15- hp. 40/20 amps. Any help is welcome, i hate to buy the transformer and not have this unit work. i would change the motor wiring, but the diagram is gone, and the wires are not numbered, also i believe id have to change all the heaters, which are hard to come by, as well as various other parts in the panel. just seems the transformer is the easiest way to get this machine up and going in prouction.
- The only real problem you have to worry about is the capacity of the primary winding to supply enough current for your needs without burning up. That information should be on the transformer. Otherwise, transformers work both ways!
- Q: Do you really think Transformer 2 is any better than Paul Zart Mall Cop? Not that Mall Cop was a good movie. Transformer 2 just went on and on, boring, boring.
- transformers 2
- Q: From the following transformer, how would I calculate:a) the equivalent impedance on the low-voltage sideb) Converting the impedance found in (a) to it's per-unit quantities
- a) the turns ratio of the transformer is 20 to1 so to refer an HV side impedance to the LV side you divide it by the square of the turns ratio which in this case is 400 which gives: 0.001+j0.00025 ohms. b) There's a certain amount of freedom in doing this for you may define the per-unit impedance base however you want. It is however rather usual to define it as VA / I^2. Here I 5000/2400 2.083 amps So base impedance HV side 5000/2.83? 624 ohms making the given impedance (0.4+j0.1)/624 p.u. This p.u. value should be the same on either side of the transformer. Nice to see you around again but do I notice you haven't improved at saying please when you want someone to do something for you for nothing. If you can't learn that there's not much use in learning all these technical skills. You're going to remain a clumsy oaf!
- Q: I have a transformer scavenge from a VCD player, written 25W on VCD player, so that should be the transformer's VA rating ?I also measured the transformer, it has 2 secondary. It have 11.1VAC on 1st output winding and 13.1VAC on 2nd output winding.So if I were to use into DC (rectification) and calculate for other maths, should I use the value of 11.1VAC / 13.1VAC, or their average which is roughly 12VAC ?
- yes, 25VA would be the sum of the two outputs. IF they are balanced, that would be about 1 amp current output. That assumes any motors operate off the transformer. you can use either secondary separately to get two voltages (about 14v and 17v DC), or you can put then in series to get 24.2 VAC (32 VDC). You CANNOT put them in parallel without the transformer smoking. The DC voltages listed above assume a FW bridge and large capacitor filter. You can probably get about 0.7 amps DC out of the supplies. Again, that assumes the two windings have about the same current rating, ie, they use the same size wire.
- Q: Transformer stop power operation, the neutral point must be grounded
- (3). When the transformer between the high and low voltage coil capacitive coupling, the low side of the voltage will reach the resonance conditions, there may be resonance over voltage, damage insulation. For the low voltage side of the power supply transformer: (1). Since the low side of the power supply, in the system into the system before the high side of the transformer single-phase ground, if the neutral point is not grounded, the neutral point of ground voltage will rise to phase voltage, which may damage the transformer insulation; (2). In the case of non-full phase incorporation, when the phase of the generator is connected with the system, the neutral point of the transformer is not grounded due to the frequency of the generator and the system. Will be twice the phase voltage, the other phase (ie, unphaseed) voltage up to 2.73 times the phase voltage, will cause insulation damage accident.
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S9-M-30~2500/10KV Three Phase Oil Immersed All-sealed Power Transformer
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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