No country in the world uses 138 volts. They use 100, 110, 115, 120, 127, 210, 220, & 240.
Countries use either 220 volts or 110 volts based on historical decisions, grid infrastructure, and safety regulations. North America and some parts of Japan use 110 volts, while Europe, Asia, Africa, and Australia use 220 volts. Each system has its benefits and challenges, but the choice typically depends on what was established when electricity infrastructure was first developed.
Power loss within the same cable will be higher at 110 volts than at 220 volts. For that reason, cables for use in 110 volt countries are thicker, so that loss is comparable in each system.
To calculate the amps, you can use the formula: Amps = Watts / Volts. So, for 2000 watts and 110 volts, 2000 watts / 110 volts equals approximately 18.18 amps.
South Korea uses 220 volts electricity, whereas North Korea uses 110 volts.
To convert amps and volts to horsepower (HP), you can use the formula: HP = (Volts × Amps) / 746. For 8 amps at 110 volts, the calculation would be (110 × 8) / 746, which equals approximately 0.88 HP.
Use a step-up transformer from 110 volts to 220 volts. Try getting one at Home Depot or SEARS.
In Europe you cannot bye an oven using 110 volts. The word is not only the USA. Actually, most US electric ranges use 220 volts. Microwave ovens and toaster ovens are 110.
To find the amperage, you can use the formula: Amps = Watts/Volts. Plugging in the values, you get Amps = 1800 Watts / 110 Volts ≈ 16.36 Amps.
The availability of 110 volts versus 240 volts in a given location depends on the electrical infrastructure and standards in place. 110 volts is a common voltage used for standard household outlets in many countries, while 240 volts is more commonly used for high-powered appliances like dryers and stoves. If you have 110 volts but not 240 volts, it may be that your location is not equipped to provide higher voltage for specific appliances.
To convert 110 kVA at 440 volts to amperes, you can use the formula: Amperes = kVA / (Volts x 1.73) for three-phase systems. In this case, 110 kVA / (440 volts x 1.73) ≈ 143.37 amperes.
It is incorrect to say that 110 Volts is used in developed countries. Different countries have different standards for domestic electricity supplies. The most common are 120 Volts 60 Hz AC or 230 Volts 50 Hz AC. The reasons are historic. Originally a local electricity supply company would decide what voltage and frequency to use, only later where national standards developed, usually based on the most common system in the country. North America uses 120 Volts 60 Hz. Europe, Africa and Asia uses 230 Volts 50 Hz. See the link below for details of what voltage and frequency is used in which countries.