KS 9 series power transformer for mining
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KS 9 Power transformer for mining
1. Application
Thelow-loss oil-immersed power transformer for mining of KS9 series is applied to voltageof 6-10kV, frequency of 50-60Hz, rated capacity of 50-630kVA. It can beinstalled in mines and no explosive site with dust and gas for dragging inmines, illuminating and power transmission & distribution.
2. Model
3. Technical parameters
Type | Rated Capacity (kVA) | Rated voltage (kV) | Loss (W) | Impedance of short-circuit (%) | No-load current(%) | Label of connecting group | Weight(kg) | Outline Dimension L x W x H (mm) | Gauge(mm) | ||||
HV | LV | No- load | Load | Body | oil | Total weight | |||||||
KS9-50/6 | 50 | 6±5% 10±5% | 0.4 0.69 | 170 | 870 | 4 | 2.0 | Yy0 Yd11 | 221 | 92 | 410 | 1165×761×922 | 500/230 |
KS9-100/6 | 100 | 290 | 1500 | 1.8 | 334 | 128 | 610 | 1195×792×1027 | 520/260 | ||||
KS9-200/6 | 200 | 480 | 2600 | 1.5 | 539 | 192 | 960 | 1380×828×1139 | 650/300 | ||||
KS9-315/6 | 315 | 670 | 3650 | 1.4 | 746 | 235 | 1265 | 1625×970×1222 | 650/300 | ||||
KS9-400/6 | 400 | 800 | 4300 | 1.3 | 850 | 268 | 1510 | 1640×980×1330 | 600/276 | ||||
KS9-500/6 | 500 | 960 | 5150 | 1.2 | 1085 | 325 | 1850 | 1870×1160×1368 | 750/260 | ||||
KS9-630/6 | 630 | 1200 | 6200 | 1.1 | 1395 | 500 | 2415 | 2108×1198×1705 | 660/330 |
- Q:I have a 120v-36v transformer hooked up to a bridge rectifier composed of 4x IN4004 diodes, 2 filter capacitors and a 100k resistor paralleling them as a bleeder resistor. The rectifier puts out the full 50v DC I expect it to, but at the same time the transformer faintly vibrates (you can only really tell if you touch it), and over time it gets quite hot. Why is this? I have checked over my connections quite a few times and I am 99.9% sure its all connected properly.
- Since you are getting the correct voltage from the transformer+rectifier+filter, the most likely reason the transformer is heating is that it is has been designed with the least amount of wire that can possibly do the job, and thus the resistive losses are fairly high in the primary winding (the winding connected to 120 V). If you will be drawing a lot of power from the supply, you should ensure adequate ventilation for the transformer for cooling. Most transformers have a strap that can be mounted to a metal case to help dissipate some of the waste heat. If the excess heat is a problem, you might consider upgrading to a higher wattage transformer. Be sure to check the output voltage under load - it won't be nearly as high as when there is no load connected. The vibration may be due to low quality lamination in the metal transformer core, or loose windings, or both. (The transformer core is made up of thin strips of iron that are insulated from each other, usually with a thin lacquer coating. Quality transformer cores will be very tightly laminated.) The vibration/noise is consistent with the apparent low quality of the transformer, but should not be a problem.
- Q:How to measure check the good transformer ?kindly if anyone might upload the video for me . in this regarddo we have to take it out of the board ? (isolate from other components) .what to check . what should be the values ?when checking , supply should keep on or not ?any website that explain these things and upload the videos in these kind of matters . I want to learn the repairing and maintenance of electronic electrical devices instruments of daily use ?thanksGOD BLESS YOU ALL
- A quick-and-dirty check is to measure the resistance of the windings. There is no correct value because every transformer is different. For a mains step-down transformer normally the primary windings will be 50 ohms and the secondaries will be a few ohms. If there are double windings (like 0-115 0-115 on the primaries) then both windings should have a similar resistance. This is not a guarantee of a good transformer because it will not detect shorted turns. The only way to detect that is to take the transformer out, power it and measure the output voltages.
- Q:A step up transformer increases 17.7v to 120v. what is the ratio of the current in the secondary compared to primary? Assume 92% efficiency.HELP PLEASE
- Preliminary necessary comments. (i) This question - and consequently my answer - assumes that we have a perfect transformer: such a transformer will have an efficiency of 100 %. (If this was not a perfect transformer, then a great deal more data about the transformer would need to be supplied: it isn't). Hence, because the efficiency of the transformer in this question is less than 100%, that must be because a secondary current is flowing in the load, the details of which we do not know - or indeed need to know. (ii) Transformers are rated in terms of their product of volts and amps: called VA. They are NOT rated in terms of watts, since the manufacturer cannot assume that the load on the transformer secondary will have a unity power factor. (iii) When a transformer supplies current to a load, its on-load efficiency is the ratio of (VA)out to (VA)in. (VA)in primary VA; (VA)out secondary VA. Solution. Let the primary current Ip; let the secondary current Is. Let the primary voltage Vp; let the secondary voltage Vs. Let the efficiency n. Then we have: (VA)in Ip X Vp Ip X 17.7 (VA)out Is X Vs Is X 120. (VA)out n X (VA)in. so: Is X 120 0.92 X Ip X 17.7 i.e.: Is/Ip (0.92 X 17.7)/120 0.138/1 ? Hence, the secondary current is 0.138 that of the primary current. HTH, Skywave.
- Q:I have a friend who lives in a place that she converted to a liveable space at a movie studio complex; however, the space is right above the transformer used by the studios for power. At night we can sometimes hear some buzzing sounds. How dangerous is this? We've heard things like it causes cancer in the long run, and that it is simply not safe. Does she have to worry about it? She's been there about two years.
- Transformers can produce powerful electromagnetic fields, but there is no definitive answer on the safety of living next to transformers. Some people believe the electromagnetic fields cause health problems, and others do not. Bona fide research on health risks has produced sometimes contradictory results. One thing is for sure, high capacity transformers occasionally explode if they get overloaded, but these types of transformers are not allowed inside of buildings.
- Q:A transformer consists of 250 primary windings and 838 secondary windings. If the potential difference across the primary coil is 25.5V , what is the voltage across the secondary coil ? If the potential difference across the primary coil is 25.5V , what is the effective load resistance of the secondary coil if it is connected across a 135Ω resistor?
- Transformer equation, N_pV_pN_sV_s V_s (N_p V_p)/N_s, plug in the numbers and calculate. N_p/N_s sqrt(Z_p/Zs)
- Q:A 1:150 transformer has a primary voltage of 4500 V. (a) What is the voltage in the secondary coil? (b) If the transformer consumes 45 W, what are the currents in the primary and secondary coils?
- hello walrus, I am Camdus.
- Q:I really want a better transformers than 4 1 was great 2 was crap 3 good 4 worst of them all
- Yes, there will be a Transformers 5. When we don't know. Many people are thinking 2016 or 2017, but i have a friend that works in the movie theater and she knows the next movies for the next 2 years and Transformers 5 was not on the list. Is that because Transformers 5 has no name yet? Maybe. So Im assuming its coming out in 2017 or 2018. As for Paramount pictures they are not even thinking about Transformers 5 yet. As they stated once its one movie at a time.
- Q:I want to step down a 240Vpeak signal to 24. Anyone know where I can get a transformer to do this? Also does frequency have a dependence on a transformer? The signal I am looking at has around 55Khz frequency. Thanks for your help
- You won't be able to find a transformer for that frequency, unless you are lucky. You will have to wind your own. Probably a ferrite core is best, depending on your power level, which you did not mention, and is an important design factor. If this is a very low power signal (you do use the word signal), perhaps a capacitive or resistive voltage divider will be enough. Or search for an audio signal transformer. .
- Q:I can find them at Wal-Mart, but the smallest size they have is a 4/5 and that is too big. I am looking for 3T or 4T sizes.I saw a Transformers jacket in size 3T and 4T at Wal-Mart, but they didn't have any shirts.Thanks!
- You can buy those Transformers or Ben 10 clothing in Kmart,Big W, some chinese shops and OKorder.
- Q:how to calculate the secondary current of the transformer for example 1200 amps in primary ,primary voltage is 220kv and the secondary voltage is 34.5 kv of the transformer .
- That is a good answer 7652 amps. 7300 amps is more realistic, considering transformer losses, but I don't think any one has built that large a transformer, so surprises are likely. Even at 1% that many amps, 3 phase is likely. Neil
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KS 9 series power transformer for mining
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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