Basic Design Steps for Electrical Appliances (beginner)

1. electrical chart classification:
1) electrical system diagram and diagram
2) electrical schematic diagram
3) Electric Appliance Layout
4) Electrical Installation wiring diagram
5) function Diagram
6) electric component list

2. Principles for drawing an electrical schematic:
1) the schematic diagram is generally divided into two parts: the main circuit and the auxiliary circuit. The main circuit is the part of a strong current passing through an electrical control line, which is generally drawn using a crude line. The auxiliary circuit includes a control circuit, lighting circuit, signal circuit, and protection circuit, which is a small current passing part, draw the main circuit above or left of the control circuit by using a thin line.
2) whether it is the main circuit or auxiliary circuit, the electrical components should generally be arranged from top to bottom in order of action, from left to right, the circuit can be horizontally or vertically arranged.
3) each part of the same electrical appliance (such as the contactor's coil and contacts) is painted in their respective circuits, in order to facilitate identification, each component of the same electrical appliance may not contain the same text symbol.
4) when there are several electrical components with the same role in the same schematic diagram, you can add numbers after the text symbol to distinguish them.
5) in the schematic diagram, the cross-wire connection points with direct electrical connections must be expressed with black dots.
3. Basic Methods for reading electric charts
Read principles: focus on the main circuit, and explain from the control circuit: "Focus on the main circuit" is to first understand the AC contactor used in the main circuit
"Starting from the control circuit" is to understand the role of the control button in the control circuit, their action Control AC contactor Coil power loss, so as to control the main contact of the AC contactor in the main circuit.
View chart sequence: read from top to bottom, from left to right