3 PHASE MOTOR TRAINING SET
Three-phase electrical systems, commonly used in industrial workplaces, operate at 380 volts AC. Electricity generated as three-phase in power plants is distributed to residences via the grid. Usually, three-phase electricity and a neutral line reach up to the building entrance. At the building entrance, the three-phase lines are distributed among apartments and offices for equal load sharing. Alongside a phase line entering the apartment, a neutral line is also connected to supply electricity to the apartment, office, or workplace. In three-phase electricity, there is a 380v AC voltage between phases, while the voltage difference between each phase and neutral is 220v AC. This is why 220v AC is used in household electricity, due to the voltage difference between a phase and neutral. Systems that use direct three-phase electricity are large motors, heaters, and other industrial and factory-type workplaces. Although a neutral line exists in three-phase systems, it is only used where 220v AC is needed. As voltage increases, the risk to human health also increases; therefore, necessary protective equipment must be used and caution exercised when working with three-phase systems that have higher voltages than household electricity. It is very important to use protective devices such as fuses, residual current devices, and surge protectors where necessary to safeguard the electrical system.
