In a 3-phase electrical system, the term "RST" refers to the three phases of the supply system. It is a common designation for the phases in various countries and is used to represent the individual phases of the system.
The letters R, S, and T specifically denote the three phases in the system. It is important to understand that these letters may vary in different regions or countries. For instance, other commonly used designations for the phases include UVW, XYZ, or ABC.
When it comes to motor connections, the letters U, V, and W are often used to indicate the coil head, while X, Y, and Z represent the coil end.
It's essential to note that the letters R, S, and T are not acronyms for specific terms but are merely labels to differentiate the phases in a 3-phase system.
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