Typical power supply schemes, one-line diagrams of electrical networks of enterprises

The 12 most common typical power supply schemes for enterprises:

Enterprise radial feed diagram

Trunk circuits with one-way power supply: a) single, b) double with LV redundancy

Scheme of single mains with frequent reserves for secondary voltage connections

Main circuit with bi-directional power supply

Schemes for connecting transformers to a 6-10 kV electrical network

Radial power supply scheme for electric receivers

Power supply circuit for electric receivers: a) with one-way power supply for electric receivers b) with two-way power supply for electric receivers

Diagram of the transformer-bus block for a single-transformer substation

Diagram of the transformer-bus block for a two-transformer substation

Scheme of the distribution network connected to TP busbars

Mixed power supply scheme for electrical receivers

Design diagram of the electrical network