how does house wiring work network electrical distribution system how house wiring works house wiring explained electrical distribution systems explained electrical basics home home electrical circuit how a house is wired.
The electrical grid is a set of electrical installations for the transmission and distribution of electrical energy, consisting of substations, distribution devices, current communications, air and cable transmission lines operating in a certain area. Another definition is possible: a set of substations and distribution devices and connecting their electrical lines, located in the area, the settlement, the consumer of electricity.
Electricity consumers are designed for lower voltages than the voltage in the grid. Voltage reduction is done in two stages. First, the voltage is lowered to 6-10 kV (kilovolt) on the lower substation, which is part of the power grid. Further voltage reduction is made at transformer substations. Their familiar to all standard “transformer booths” in many scattered around businesses and residential areas. After the transformer substation, the voltage drops to 220-380 B.
The tension between the linear wires of the three-phase AC system is called linear. The nominal current value of linear voltage in Russia is 380 B (volt). The tension between neutrality and any of the linear wires is called phase. It’s three times smaller than the linear root. Its nominal value in Russia is 220 B.
The source of current for the power grid is three-phase AC generators installed in power plants. Each of the windings of the generator induces linear voltage. The windings are symmetrically arranged around the circumference of the generator. Accordingly, the linear stresses are shifted relative to each other in phase. This phase shift is constant and is 120 degrees.