the difference between 1 phase and 3 phase electricity

1 Phase electricity is an electrical network 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 is used by many people.

 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 home appliances 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.

 3 Phase electricity is an electrical network that uses three Phase wires (R, S, T) and one neutral wire (N) or often called a ground wire.  According to the term 3 Phase Electricity, it consists of 3 live cables and 1 neutral cable.  Generally, 3 Phase electricity has a voltage of 380 volts which is widely used by industry or factories.

 3-phase electricity is AC (Alternating Current) electricity which uses 3 conducting wires that have the same voltage in each phase, but differ in the angle of the curve by 120 degrees.

 There are 2 kinds of electrical voltages that are known in this 3 phase system, namely:

 1. Voltage between phases (Vpp: phase to phase voltage or some use the term Voltage line to line)

 2. Voltage phase to neutral (Vpn: Voltage phase to neutral or Voltage line to neutral).

 Using 3 phase electricity actually has advantages.  The advantages of 3 phase electricity are:

 1. Provides large electrical power (usually in medium and large industries).  Industry or hotel requires a large amount of electricity so that it requires a lot of network.  But at the last output for use it only requires one phase (choose one of the existing 3 phases).  3 phase electricity is usually needed to drive industrial motors that require large power.

 2. Because it uses a higher voltage, the current that will flow will be lower for the same power.  So for large power, the cable used can be smaller.