SC(B)H15 Type Amorphous Metal Dry-type Transformer
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
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- Q: For my proposed new aluminium extrusion factory I ve the load of 250 kw heater and 670 HP of motors.Whats the kva rating of the transformer I should go for?Pls advice.
- the kva rating of the transformer shows that the power factor of the load has been taken care of
- Q: i think transformers
- The simpsons by far! Transformers had too many effects,it got old after a while.
- Q: I am working on a lengthy project and have one little area that I am not sure how to answer. I need to know how to size a transformer for a building. Does anybody know the equation or method for doing this? The service coming in is 480Y/277V and the step-down is to a 240/120 single phase panel. Any help is great! Thanks
- There is no actual formula that will size the x-former for a building but I can give you some help::: Add up all the loads lets say you have(main IDEA of the question) 20000 watts at 120 v 10000 watts at 240v for a total of 30000 watts calculating the secondary amps you use ohms law for single phase PI x E solving for I 20000/120167 amps solving for I 10000/240 41 amps You have to go to the NEC code book to look up the wire size but its about 4/0 (you MUST have a local expert do this for you never trust anyone on the net) Now you know what size wire feeds your panel from the x-former lets work this backwards The 480/277 Y is a 3 phase system Im sure you will select the higher votage of 480 to supply the transformer this lowers the wire size proportionally. The formula for OHM's 3 phase is P I x E x Sqrt of three or 1.732 the output kva is 30kva so you need 30 kva going in minimum solving 30000 I x 480 x1.732 I 30000/831.3636 amps now lets go bac to the code book to size the wire 10 is 30 amps #8 is 40+ so lets feed the primary side with #8. Sizing the overcurrent device is done the same way Since we did all that fluff.to answer your question Let me say this, Always oversize the x-former 10-20% . and always check your addition for the totals on the loads.There are a bunch of appliances that can be devaluated and in winter your /ac doesn't run and all that. so before you jump right into this try to get a real good handle on what's going on.Its not complicated at all you just need to be accurateWell Have a good day.From the E
- Q: i heard that there is an electric transformer used in single phase electric furnace and other applications , its benefit is to get more balanced current load from the three phase system to feed a single phase load.i need to know how its can transform three phase supply into single phase supply, and if it can be used in reverse matter i.e can it deliver a three phase power from single phase supplythank you in advance
- First off: No, a transformer cannot change Single to Three phase. However you can run single phase equipment on three phase power by simply using 2 of the 3 hot lines. Depending of the voltage requirements for your machine you may need to buy a buckboost transformer to get the voltage to the correct opperating voltage of your machine (ie. a 230 v three phase input will come out at about 208 when used as single phase). If you need a conversion from single to three phase, look into buying a Phase converter. Depending on where you get it, they can be as easy as 2 lines in 3 lines out. Installed in a matter of minutes. I also recommend staying away from what is called a static phase converter. They are machine specific so if you ever change or add on it wont work. Get a Rotary one. It works with everything. Hope that helped. Good luck.
- Q: do you know when the knew transformers film is coming out ( the year as well)
- 6/24/09 in the US
- Q: I know that in a step-down transformer if I have 10 turns on the primary coil and 5 turns on the secondary coil that the voltage gets reduced by half and the current gets doubled, but is there any other significance?
- Often wondered this myself. There must be a reason why you get transformers with 1000 turns on the primary, and 500 turns on the secondary. If there wasn't a good reason why would manufactures bother putting more than 2 turns on the primary and a single turn on the secondary? The ratio remains the same! Think it could be something to do with the impedance the transformer offers to the input, and output circuits. impedance is kind the AC equivalent of resistance. If it's high then there'll be a fair impedance(resistance to the instantaneous flow of current for a given instantaneous voltage. More turnslonger wirehigher impedance? Matching of impedance between circuits can be important to ensure maximum efficiency/preventing echos etc.
- Q: How to increase the transformer output current
- If the transformer is not in the case of overload, then increase the load, multi-access electrical equipment, it increases the output current. Otherwise it is not safe. If you do not change the structure of the transformer, do not change its specified cooling method (such as air-cooled, water-cooled), does not change its specified ambient temperature, then its rated current can not be changed.
- 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
- Q: By applying ohms law in the secondary circuit, IV(stepped up)/R , a stepped up voltage would result in an increase of current, i am aware that the step up transformer steps down current, but it is the secondary circuit that determines the current draws (ohm's law), and the primary current is multiples of itSo ?!!!!
- Transformer coils are electrically isolated, the voltage in the secondary being induced by that in the primary. There is therefore no constant current between. The POWER (WAV) in the primary has to have an an induced equal counterpart in the secondary. In this case, as the voltage in the secondary is larger, the current drops proportionally. At the end of the transmission line it's stepped down again, and then you get a current.
- Q: I can't remember the funny scenes from any the Transformers movies, especially 1 and 2.It's driving me nuts.I saw the third one just last week so I remember a couple of funny scenes, but other than that, no luck.If you can, could you please include a link to a video clip of the scene?Thanks so much! (:
- When the car turns into bumblebee and the guy says to the girl its probably japanese
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SC(B)H15 Type Amorphous Metal Dry-type Transformer
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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