LV Series Switching Power Supply
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 10000pcs pc/month
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- Q: New on the transformer reported to stop, how to do,
- Second, if it is a large industrial electricity price, in order to save the basic electricity costs, is the power supply enterprises can apply for disabling procedures, but the new transformer need to comply with the "power supply business rules" provisions, reported there are two procedures, Capacity, the second is suspended: Article 23 of the Power Supply Business Rules The user will be required to apply to the power supply company five days ago. The power supply enterprise shall handle the following provisions: 1. The reduction must be the whole or the whole group of the transformer to stop or replace the small capacity transformer power. The power supply company shall, upon the date of acceptance, seal the equipment according to the date on which the user applies for the reduction. From the date of the seal, according to the original billing method to reduce the corresponding capacity of the basic electricity. But the user stated that the permanent reduction or from the date of the expiry of the expiry of two years without the resumption of electricity procedures, and its capacity after the reduction has been less than the implementation of the two-tier price of capacity standards should be changed to Single system billing;
- Q: How to understand the secondary side of the transformer
- The transformer consists of iron core (or core) and coil, the coil has two or more than the winding, which connected to the power supply winding called the primary coil (a test), the rest of the winding called secondary (secondary side). The basic principle of the transformer is the principle of electromagnetic induction, now single-phase double-winding transformer as an example to illustrate its basic working principle: When the primary winding with voltage U1, the current I1 flow, in the core to produce alternating magnetic flux , These magnetic flux known as the main flux, in its role, both sides of the winding were induced potential E1, E2. Transformer two sets of coil turns are N1 and N2, N1 for the primary, N2 for the secondary. In the primary coil plus an AC voltage, the secondary coil will produce both ends of the induced electromotive force. When N2> N1, its induction The electromotive force is higher than the primary voltage. This transformer is called a step-up transformer: when N2 <N1, its induced electromotive force is lower than the primary voltage, which is called a descending transformer. Primary secondary voltage and coil The number has the following relationship: U1 / U2 = N1 / N2 Suppose that n is the voltage ratio (turns ratio). When n <1, then N1> N2, U1> U2, the transformer is a step-down transformer, otherwise it is a step-up transformer.
- Q: How many transformers are used in a hundred households?
- In this case, in accordance with the high-end community to consider, hundreds of people, about 30x100 = 3000kW capacity, should choose 3150kVA transformer; mid-range community, hundreds of people, should choose 1600kVA transformer; ordinary community, hundreds of people, should choose 800kVA transformer.
- Q: What is the use of the lower part of the transformer made of rail?
- Transformer The lower part of the box has two structures: 1 set the wheels. This requires the installation of the track on the basis of the transformer, and then the wheels fixed on the I-beam track, this way to facilitate the maintenance and installation of the transformer handling, but because of the large and larger transformers, the use of wheels is already less; I-beam or channel as a load-bearing beam. This transformer does not need to set the track, on the basis of the transformer relative to the location of the beam weighing embedded flat steel, the transformer in place after the load-bearing beam fixed fixed on the base embedded parts. Need to move the transformer, the chisel spot welding, with the hoist and other machinery will slowly drag the transformer.
- Q: I remember playing with a brand of shapeshifting car/robot toys in the 80's when I was a kid that was not Transformers. They were popular, had a catchy commercial jingle, and were NOT Transformers, but I can't remember what they were called. Help!
- GO-BOTS-AND THEIR STORY. The Gobot toyline was based on figures produced by Popy of Japan (later Bandai), named Machine Robo. In 1983, Tonka decided to import the line into America after realizing Hasbro were doing the same with Takara’s Diaclone and Microman's Microchange lines, which became Transformers after crossing the Pacific. In another similarity to Transformers, Tonka decided to make the figures sentient robots, rather than human-piloted mecha as they had been in Japan, and divided them into two factions – the good Guardians and evil Renegades (although early figures were simply described as ‘Friendly’ or ‘Enemy’ on the packaging). The figures were all given individual names, in contrast to the simple designations they received in Japan. The line sold well initially, but was overtaken by Transformers, something often attributed to Hasbro's much better promotion and media tie-ins – for example, Gobot figures had no character profiles on their packaging, whereas Hasbro included tech spec biographies for each character on the back of the card or box. Gobots were also largely considered by fans and the marketplace to be overly simplistic when compared to the more sophisticated Transformers line; whereas Transformers characters had iconic names (e.g., Megatron, Starscream, Optimus Prime) and multi-faceted transformation cycles (where the robot often didn't resemble the vehicle), Gobots characters had much more obvious names (e.g., Scooter who changed into a scooter, Tank who changed into a tank, Dozer who changed into a bulldozer, etc.) and simplified transformation cycles (e.g. Tank simply stood up to transform). 1987 was the final year in which new Gobots were released.
- Q: hi guys can any of you give me advice on wot i need 2do on removing and replacing a faulty line output transformer on a rear veiw projection tv as i have the part and the local tv shop wont fix it 4 me.wot would be the best way to discharge the power from it first and could i jus cut the 2 wires on the old 1 and use connector blocks to connect the new 1 in would this be ok to do or do it need to soilder connected on?. and is there any adjustments that would need to be done to the set when i have it installed be4 i turn it on any help much appreicated
- Solder the joints!!!!It is OK to use the old connectors!!!! Be sure that the power of the new transformer it is the same with the power of the old one.
- 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: I have a transformer 12v and 12v need to reduce these further to be able to grow or shrink the rotational speed electromotor.Which device or component would be used to reduce the speed of electromotor?I making a mini escalators
- A transformer has AC output, so first get DC, which needs a rectifier and capacitor. Following this is a voltage regulator using an LM317 (adjustable 3 terminal regulator). This can delivers ~1 amp. You should know what maximum current your motor draws under load. The first link is an example for 1.25V-15 V with an 18V transformer. Use a 12V transformer, and a 1000 ohm potentiometer as a variable resistor instead of 2000 ohms (R2). This will give voltages from 1.25V to 7.0V DC. Use the formula to calculate other resistors for a different voltage. Get the LM317 in a TO220 package, and you will need a heat sink, at least as big as in the picture. You can probably find a kit of parts for this in an electronics shop.
- Q: anyone have any pictures ideas on how to do a transformers cake???? i need one for this sunday any help would be appreciated
- Transformers (cake) more than meets the eye! Go to the movie website. I think you will have better luck having a bakery do this for you.
- Q: i wish to construct a transformer with 220/120v,60hz,5watt,plz help me
- The short answer is – don't. Unless you have access to exactly the right materials and equipment, not to say the right knowledge and design tools, you are risking a nasty accident if you try to make your own mains transformer. If you want to experiment with making a transformer, choose one that operates at low voltage (25V or below on both primary and secondary) and remember the following basic design rules: (1) The voltage ratio Vpri : Vsec equals the turns ratio Npri : Nsec. (2) The primary inductance Lpri must be such that its unloaded reactance, 2pi x fLpri (where f is the operating frequency in Hz) is high enough to make it look like an open circuit when there is nothing connected to the secondary. (3) To calculate the primary inductance you will need data, and possibly software, supplied by the makers of the transformer core. (4) The core must be big enough not to saturate under the proposed working conditions. (5) The windings must be able to carry the proposed curents without excessive heating. Remember that heat cannot easily escape from the windings, so the normal ratings of wire to be used in fresh air do not apply. The current ratio Ipri : Isec is the inverse of the turns ratio, i.e. Nsec : Npri. (6) You need insulation beteen the windings and the core and between the primary and secondary. This is an insurance against failure of the insulation varnish on the windings themselves. (7) The core opening(s) should be just big enough to accommodate the windings, but ideally no bigger. Once you have built a couple of successful low-voltage transformers, you might consider upping the voltage, but do read more about it first. Meantime, if you want a 5VA mains transformer, they are really cheap to buy.
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LV Series Switching Power Supply
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 10000pcs pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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