SINGLE PHASE

A.SINGLE PHASE DEFINITION

Single Phase electricity is an electrical that only uses 2 conducting wires, the first as a phase wire (L) and the second as a neutral wire (N). Generally, single phase electricity has a voltage of 220 - 240 volts that many people use.

Usually 1 phase electricity is used for residential electricity, but PLN electricity on the street has 3 phases, but what enters our homes is only 1 phase because we don't need big power and for equipment at home we only use 1 phase electricity with 220-240 volts.

For example, the one to our house is Phase R, our neighbor may be Phase S, and another neighbor is Phase T.

B.AC/DC SYSTEM

DC System (Direct Current)

 Is an electrical system where the charge of electric current is in the same direction or occurs in the same direction. An example of a DC system is equipment that uses a battery or battery as its power source. The most important thing in a DC system is the positive (+) and negative (-) poles which must not be reversed.

 AC System (Alternating Current)

 This electrical system is in the form of a sinusoidal wave where the polarity varies between positive and negative poles. This electrical system is very commonly used. The electricity supply from PLN uses an AC system. The thing that distinguishes the DC system is that the positive (+) and negative (-) poles can be reversed. An example is when the power plug is plugged into the socket, turning it around is not a problem.

C. HOW TO MEASURE

The easiest way to measure is to use a measuring instrument, namely a voltmeter. With a voltmeter, you can know if the electricity is AC or not. In the laboratory, you can use an oscilloscope to see the waveform, whether it is sinusoidal or not.