Neutral and neutral - Solutions - Huaqiang Electronic Network

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

Photocoupler

Simply put, the neutral and neutral wires are wires that are drawn from the neutral point of the power supply. The wire that is led out after the neutral point is grounded is called the zero line, and the wire that is not grounded by the neutral point is called the neutral line. The wire that is connected to the earth is called the ground wire.
Often known as the three-phase four-wire, the zero line and the neutral line are actually the same line. In the case of one of the three-phase lines, that is, a single-phase circuit, it is provided. The "loop" line of the current of the root phase line, if the neutral voltage is not zero in the neutral point ungrounded system.
Neutral line refers to a "common line" when three phase lines are connected in a "star connection" three-phase AC circuit. In a strictly absolute balanced three-phase AC load, this neutral line It is zero potential, that is, the voltage is zero. However, in order to prevent the load from being "unbalanced" and the neutral line is charged, the neutral line is grounded. The grounding wire does not refer to the wire in the current loop. It is a protective wire. The neutral wire is grounded, the neutral wire is grounded, and the equipment casing protection grounding refers to this wire. It does not participate in the operation of the equipment. Provide a current loop.
One of the two lines of the 220 volt single-phase loop is called "phase line" or "hot line", and the other line is called "zero line" or "ground line." The term "fire line" and "ground line" is only a common name in practice, especially the "ground line" is not accurate. Strictly speaking, it should be: if the loop power supply side (three-phase distribution transformer neutral point) is grounded, it is called “zero line”; if it is not grounded, it should be called “neutral line” to avoid “ground” in the grounding device. The line is mixed.