Draw Single line diagram of motor control circuit

Question

Accepted Answer

A single line diagram of a motor control circuit shows the electrical connections and components in a simplified manner.

A single line diagram uses standardized symbols to represent various components such as motors, switches, and control devices.
It shows the power supply, control circuit, and motor connections in a single line format.
The diagram helps in understanding the overall circuit layout and how different components are interconnected.
Example: A single line diagram of a motor control circuit may include a power source, a motor starter, overload protection, control switches, and the motor itself.

Accepted Answer

Single-line diagram representation:

Note how much simpler and “cleaner” the single-line diagram is compared to the schematic diagram of the same power system: each three-conductor set of power wires is shown as a single line, each transformer appears as a single primary winding and single secondary winding (rather than three of each), each motor and generator is a simple circle rather than a complete set of windings, motor starter contacts aren’t triplicated, current transformers and ammeters appear as single units instead of triplets, and each three-pole circuit breaker appears as either a single square or a single breaker symbol. For those familiar with industrial instrumentation and control system diagrams, the distinction between schematic diagrams and single-line diagrams is analogous to the distinction between loop diagrams and P&IDs:

Draw Single line diagram of motor control circuit

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