Q:I like to construct an autotransformer . Input voltage .240Vsingle phase. to use in a system whose operation voltage is 120v. 15 amps 1000 watts can some suggest me as to how i should proceed in calculating size of core ,winding turns, wire sizes etc , now i have 4 inches square E type transformer core . I removed all windings from it. It was used in a microwave .

If the microwave transformer has a 240 volt primary winding, count the turns and use the same number of turns for the autotransformer. If it has a 120 volt primary, use twice as many turns as the original transformer. Half of the turns will carry only the primary current. The wire for those turns should be about the same size as the original wire if the primary was 240 volts or half that size if the original primary was 120 volts. The remaining turns need to be about three times the size of the first half of the turns.

Q:What is the difference between the inverter and the transformer?

★ 1, [inverter]: inverter can change the frequency, [also change the voltage accordingly]. Because, inductive (such as motor) load, in the frequency down, the sense of resistance is also reduced, in order to prevent the current exceeds the rated value, must also reduce the voltage! In the last century just introduced, for the FM, voltage regulator, speed control device is known as the "three V technology" is the reason. - ★ 2, [Transformer]: As the name suggests, the transformer is to change the voltage of the device. Transformers are typically used at specific frequencies (eg, frequency, or high frequency). As the voltage used to change, the frequency is constant, which is its salient features.

Q:I thought the movie was great, but the death of Megatron seems really rushed and just unsatisfying? Agree?

the new transformers are garbage they need to go back to the originals where bumblebee was a slug bug

Q:how could I describe the physics of transformer?

A device by which you can increase or decrease the available AC mains voltage.

Q:I was wondering what year is transformer 2 cuz the first 1 was freakin awesome!!!!!!!!! and i wanted to see a second 1 but dont know which year and i heard there was going to be another one transformers 2.

they are still making the sequel :) but I love the first one too!!! :)

Q:110kv level, the capacity of about 43MVA transformer models and detailed parameters

SSZ10-50000 / 110 ONAN YN, yno, d11 110 ± 8 × 1.25% / 38.5 ± 2 × 2.5% / 10.5 Rated current (A) High pressure side 262.4 / Medium pressure side 749.8 / Low pressure side 2749.3 No load loss 35.3kw No-load current 0.09% Short circuit loss (kW) High - Medium 200.8, High - Low 202, Medium - Low 157 Short Circuit Impedance (%) High - Medium 10.06, High - Low 17.78, Medium - Low 6.35

Q:can u use a 220v to 12v transformer step down transf, switch the primary as the secondary, and vice and make it a 12v to 220v transformer.

It is a 12V center tapped if you input 220VAC. If you put in 110VAC, then it is 6V center tapped. Generally, if you have a 12V-0-12V, it is center tapped and you can generate 24Vdc out of it, if you use without center-tap wire.

Q:HiCan anybody help with the below question?A 400V, 3 phase supply is connected through a 3 phase loss-free transformer of ratio 1:1, which has its primary connected in mesh and secondary in star, to a load comprising three 20 ohm resistors connected in deltaCalculate the currents in the transformer windings, in the resistors and in the lines to the supply and the load. Find also the total power supplied and the power dissipated by each resistor.Thanks in advance

the only reason that i will think of is is an electric powered gadget is that it does paintings, It consumes power (losses) and it particularly is hooked as much as the provision?? besides the indisputable fact that I too have in no way heard if them being spoke of as a gadget in 40 4 years interior the commerce

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)

The transformer is for impedance matching, but in your circuit could be for some other purpose, e.g. I have one in a DC-DC voltage converter, putting out abt. 75V from a 9V battery. Another, I have as an isolation transformer from a computer soundcard to an external circuit. The impedance match function is usually matching a radio circuit impedance to a loudspeaker impedance (8 ohms). So far as pinouts, look in online catalogue. However, the primary connections are green and blue, with a black centre tap. The 8 ohm speaker secondary winding has red and white wires.

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.