A 1000 watt inductive load designed for use on 60 Hz can take as much as 1400 watts when run on 50Hz so as a safe rule for a 1000 watts of equipment use a 2000 watt transformer. 5 Your transformer is undoubtedly burning up because something in the rest of the transformer load circuit also got fried in the lightening strike and is placing a load on the transformer that greatly exceeds its normal operating specifications. Instead of discussing how and why the circuits work, some readers focus on the dangerous side of the circuits that involve AC. So I'm curious here: I know that an incandescent light source can work on whatever voltage it's designed for, and a 12VAC step-down transformer in the USA will deliver a nominal 12VAC (actually closer to 14VAC OCV in most instances), but it's the voltage that the bulb is designed for. The reason that construction sites favour 110V is that the supplying / isolating transformer is centre tapped to earth. Why is a power transformer so heavy? Rated 0 out of 5 stars. Normal mains current has the neutral phase tied to around around earth potential so touch the live and you get 240v relative to earth (wot you're standing on). Many people have told me, "oh you just need a yellow box from mchine mart" so I fugured I coukld save some cash. The piano is an electronic device and that 2k transformer is likely noisy as hell. With a Bridge rectifier to convert the 12v AC to 12v DC . $40 OFF your qualifying first order of $250 or more with a Wayfair credit card. Why is a power transformer so heavy? This was a real pain. I was going to buy the transformer from Inverterdrive supermarket at the same time as ordering an Inverter, they appear to be a competitive price. by the rectifier trio . There are approximately 40 countries that use 60 Hz while the rest typically run on 50 Hz current. The outside transformer is constructed out of steel which also adds to. Hence, the. So it's a matter of personal preference, and often depends on how the rest of the amp is designed. The four jacks are compatible with many types of plugs, such as U.S., British, and Japanese standard plugs. The transformers are bulky and heavy - most are placed on the dock between the pedestal and the shore power inlet with appropriate cords so they need to be waterproof too. Transformers, when plugged into a standard 240 volt power supply, drop the voltage to a safer 110V so you don't have to use expensive circuit breakers. The piano is an electronic device and that 2k transformer is likely noisy as hell. The weight is in the construction, the chassis and the power supply. but when I rang them, the company told me, that they are too "harsh" and "corse" to use for an amp. 1500 W 110V Step Up & Step Down Electronic Transformer (Part number: W1686) See More by YINXIER. Purchase a yellow box transformer on ebay.co.uk. If it is micro wave and rated at 500 watts heating power you may find it produces 500 watts on average. The copper windings are wrapped around an iron core which is very heavy. Image your piano as a car and the transformer as the road. Each country is listed with the volts and frequency (also referred as Hertz or Hz and is referring to cycles per second) commonly found in each geographic area. So all the good ones are heavy. So a 110v 60 hertz AC fridge or aircon would be no good on 240 v 50 hertz with a transformer. Stepping down from 240V if that makes a difference. The power factor is a function of the load, and not the transformer, so a poor power factor would make KWA look less to the transformer while, in fact, the true power, if not met by the . This type of transformer is like a poorly conditioned dirt path with large rocks in it while your car is a low riding, low tire profile dragster designed for a racing strip. 0.0 0 Reviews. Using other metals will significantly reduce the quality and effectiveness of the transformer. Would i just have to figure out the math for primary coils and secondary coils to see how many i need to get a solid 15kv output. why they had to be so heavy. Answer (1 of 10): There are several reasons for the generation of high voltage. 3) Interphase voltage becomes 400V and so offering 4x the power over the same thickness of copper wire versus 110V Notice i haven't even gotten to 3 phase motors, these are all just benefits in power distribution that lets us run 100+ houses directly from a single transformer rather than having pole pigs. $121.99. Giving supply characteristics of 55 - 0 - 55V. I mean relative to Outlaw (actually let's use ATI as they made amps for so many including Outlaw apparently). Hence, the. They usually output 12VAC. The basic specs of the transformer are: 110V primary at 8 Amps, 4500 V secondary @ 450 mA, and a tertiary winding at 600 V. This is a transformer designed to run a discharge tube, so it was designed with leakage inductance to limit the current: you can short the output and the transformer doesn't overheat or overload. Power: 5000VA. It is a combination of the steel case, the cooling oil in the transformer and the internal primary and secondary windings that surround the steel transformer core. « Reply #5 on: October 02, 2012, 12:26:53 am ». $40 OFF your qualifying first order of $250 or more with a Wayfair credit card. more 110V AC to 220V AC or 220V AC to 110V AC For use with appliance up to 300 Watts Heavy Duty Transformer for safety and reliability ON/OFF switch with indicator light The transformer weighs 7 lbs 7 oz It measures 6" Deep X 4-1/2" Wide X 4" Tall Safety Features Inlude: Built-in (non-detachable power cord with strain relief) Fused Protection . Rated 0 out of 5 stars. How to Calculate the Rating of Single Phase & Three Phase Transformers in kVA. You will receive $40 off your qualifying first order if it is at least . Speakers contain an electromagnet which creates a magnetic field when current flows . For example, Commonwealth Edison, the largest electric utility in Illinois, would never . So the point of all of that is that in a power transformer, it size only matters to a point. SO… If you use use as a 2:1 step-down as an isolation transformer, it must transfer the FULL power of the load. Also some equipment might not take kindly to the conversion from 50Htz to 60Htz or 60Htz to 50Htz. We know that a transformer is always rated in kVA. Your going to burn your piano out. Re: Transformer for homebrew power supply. Below are the two simple formulas which can be used to find and calculate the rating of Single Phase and Three Phase Transformers.. Although different winding metals including aluminum are used to make the coils, heavy copper coils should always be the first choice. Anything using heating will be no problem. 0.0 0 Reviews. Machine mart, a construction etc company here the UK sells convertors to use 110v power machinery here in the UK at around £70 or so. $40 OFF your qualifying first order of $250+1. Larger transformers for hotels eg weigh several tonnes. The purpose of the post is to provide four transformerless power supply circuits and start the discussion. There are also a huge amount of circuit boards inside, you'd be amazed if you opened it up. This chart includes information on voltages and frequencies found across the globe. If you live in 230V mains country you can get a trafo from 110V main country and that way get 24VAC secondacy which makes a nice base for a lab power . Beyond that it's just extra weight. They are made up of 2 x 55V lines to form 110V. Those heavy magnets while being heavy actually serve a huge purpose. $121.99. Most 110V transformers will work backwards but you have greater losses and you may not get the full 230V. This is how a ( cheap ) battery charger works . You will receive $40 off your qualifying first order if it is at least . This requires far less space than a 50Hz transformer on a big, heavy core, and is usually more efficient to. $40 OFF your qualifying first order of $250+1. This type of transformer is like a poorly conditioned dirt path with large rocks in it while your car is a low riding, low tire profile dragster designed for a racing strip. The reason that power transformers are so heavy is from the steel laminations that the core of the transformer is built from. A Transformer is exactly what you need to get from 220v AC to 12v AC . Your going to burn your piano out. 1500 W 110V Step Up & Step Down Electronic Transformer (Part number: W1686) See More by YINXIER. Separate the coppere wound fom the aluminum wound. Answer (1 of 3): A2A: The transformer kust transfer power. As basically anything - You get what You pay for, budget is basically a transformer (110V to 240V) but does not consider the difference in AC-frequency (60 or 50Hz) and there is no voltage regulation in the output side meaning when close to the max power (W) the voltage starts dropping and fluctuate/vary. Input selection: 110V- 120V- 220V- 240V AC output outlets: 110V US standard x 2- 220V universal x 2- 220V German/French Schuko x 2 DC 5V USB output x 1 Features: Heavy-duty step up/down transformer converts 220-240 volts down to 110-120 volts or 110-120 volts up to 220-240 volts 4 AC outlets including two 110V US standard. (search for 110v transformer and make sure it has a weird three pin round socket…not the american type socket and is yellow plastic) You will need a lower end one with only one outgoing socket … I don't have a mixer but a transformer over 800w or so should be ok as per a previous post. SO… If you use use as a 2:1 step-down as an isolation transformer, it must transfer the FULL power of the load. Answer (1 of 3): A2A: The transformer kust transfer power. Likewise electric fans. And some people prefer the smaller power transformers, so the amp has a bit more sag and a smoother feel. The proper blue transformers cost a packet. You'll have to adapt your rack, not choose a lighter amp! If they are the dry type and you want to scrap them you'll get more money from the clean scrap than intact transformers. Larger transformers for hotels eg weigh several tonnes. I will try to explain as follows: The alternators or ac generators generate voltages of magnitudes in the range of 6.6 kV, 11 kV and so. These voltages are not enough to transmit power over long distances. Normal mains current has the neutral phase tied to around around earth potential so touch the live and you get 240v relative to earth (wot you're standing on). But 3 phase motors have been . Ifind a place in the boonies. They have very large transformers. As for why the laptop converter is generally so much larger than the usb chargers for cell phones/tablets/etc. They are made up of 2 x 55V lines to form 110V. For an electrical signal to be turned into audible sound, you will need to have magnets in your amplifier. The Alternator generates 3 phase AC , that is converted to ~ 14.3V DC. This is probably the first reason why guitar amps are so heavy. Could be your control board, could be the thermostat, anything that is a load on the transformer output. And your car's alternator . Primary . Why 220V is used in India? There is a primary and secondary winding which is copper wire they are isolated from each other and the voltage is developed with the magnetic field. Best source of nice mains transformers are halogen lighting transformers. 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