Most common voltage ratings for AC units are 115, 125 and 220 volts, and amperage rating can run from 15 to 20 amps. The lower two voltage ratings are common in smaller units, while units with a rating higher than 15,000 BTUs will require a 220-volt circuit. Smaller units with a 115 volt and 15 amp requirement will be able to operate off a
Obtaining 240V from 480V 3-phase. We have a 480V 3-phase connection for a borehole pump, and we need to get a temporary 240V connection for lighting, no more than a few hundred watts. We are in South Africa which operates at 240V, and when measuring each phase on the 3-phase line we get 480V RMS. To get 240V, we measured one of the phases and
In simple terms it's a power supply that chops down input voltage and current into short bursts (by rapidly switching the transistors on and off, hence the name), that allows for use of much smaller transformers than in linear power supplies (older type) because transformers lose less energy in the intermediate state which is the shorter the higher switching frequency.
P = V x V/R. R = V x V/P = 230V x 230V / 1800W = 29.39 ohms. P = VI. P = V x V / R = 240V x 240V / 29.39 ohms = 1960W. so an 1800W element at 230V will provide 1960W at 240V, which is so close to 2000W as to make absolutely no difference. Besides, no one has 240V at home all the time.
To be safe, you'll need a GoHz voltage converter. In fact, the current global civil exchange standard voltages are two: 220V region (220~240V): China, Britain, Germany, Australia, Singapore and more than 120 countries and regions. 110V region (100~130V): the United States, Canada, Japan, China Taiwan and more than 30 countries and regions.
Can capacitor replace? In general, you can go as much as 100% higher than the original capacitance value. For example, when replacing a 10-mfd electrolytic capacitor in the radio’s power supply, it is OK to use a 20-mfd or 22-mfd replacement. Likewise, you could replace a 20 with a 33.
Many countries use the same "standards" but there are significant differences between various countries. However, they all use a nominal standard of 230 V, 50 Hz with a "line" of 230 V relative to an "Earthed" (Grounded) Neutral - plus, usually, a Earth/Ground pin. Also, most other countries in the world (apart from Japan) use 240 V, 50 Hz AC.
The voltage rating of a glass fuse is the maximum voltage that it can safely interrupt. Using a 125V fuse instead of a 250V one would increase the risk of fire or explosion. A 250V fuse is also a better choice for your home appliance. Before you replace your fuse, you should find out whether it is a 250V or 125V type.
The cable can't produce excessive voltage - your house will have one mains voltage, so using a 250V cable instead of a 230V one will be fine. As *j* rightly points out, the fuse in the cable must have the correct rating - if your kettle draws (say) 10 amps, but your computer cable has a 3 amp fuse, then you'll blow the fuse when you switch on the kettle, no matter whether you're using a 230V
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can i use 250v in 230v
