Is it possible for the three phase four wire leakage switch to be connected to the neutral line?

The three-phase four-wire leakage protector is connected to the two-phase electricity, and if it is connected to the power supply side, the leakage protector will refuse to operate and will not play the role of leakage protection.

The wiring requirements for the leakage protector are as follows:

1. The leakage protector marked with the power supply side and the load side shall not be reversed. If it is reversed, the trip coil of the electronic leakage protector will not be able to be powered off when the power supply is cut off, and it will burn out after a long period of power.

3. The original safety protection measures shall not be removed or abandoned when installing the leakage protector, and the leakage protector can only be used as an additional protection measure in the electrical safety protection system.

4. When installing the leakage protector, it is necessary to strictly distinguish between the neutral wire and the protection line. When using three-pole closed-volt four-wire and four-pole four-wire leakage protectors, the neutral wire should be connected to the leakage protector. The neutral wire passing through the leakage protector shall not be used as a protective wire.

5. The working zero line shall not be repeatedly grounded on the load side of the leakage protector, otherwise the leakage protector will not work normally.

6. The working zero line of the branch using the leakage protector can only be used as the zero line of the base road of the back finger, and it is forbidden to connect with the working zero line of other circuits, and other lines or equipment cannot borrow the working zero line of the line or equipment after the leakage protector has been adopted.

The three-phase air switch can be connected to a single-phase wire. Here's how.

The three-phase switch can be used for single-phase power supply, and one of the switches can be connected to the live wire, and any switch can be used. The other two switches are empty, and the specific wiring is (if the No. 1 switch is used): connect the live wire in the power lead to the upper terminal of the No. 1 switch, and lead the live wire from the lower terminal of the No. 1 switch (red wire is recommended) to the socket.

The air switch is installed in the positive direction of the above text, and it is easy to pull down by hand once the switch is to be disconnected; 2. The neutral line of the single-phase power supply is not connected to the switch, and it continues to be connected to the socket from the neutral line of the power lead. Because the neutral line of the civil electricity system is grounded, in order to ensure that the electrical appliances can also be grounded when the switch is disconnected, the neutral line should not be disconnected. Of course, it would be safer if you could pull a separate ground wire.

Three-phase four-wire leakage switch, if the switching power supply side is connected to two-phase electricity, it will not play the role of leakage protection. The load side is connected to single-phase electricity, and any one of the three-phase live wires and the neutral line are taken to form a power supply circuit. OK!

All incoming wires must be connected to the inlet end of the leakage switch, and all outgoing wires must be connected to the outlet end of the leakage switch. In particular, it is pointed out that if there is a neutral line, the incoming zero line must also be connected to the ,.. of the inlet end of the zero line of the leakage switch

Three-phase four-wire leakage switch, if the switching power supply side is connected to the two-phase power, it will not start.

Then it loses the function of the leakage switch, and the three-phase four-wire leakage switch is the increase of the zero line current when the leakage is made, so that it trips, and it does not become a leakage switch if the zero line is not connected.

If you don't need to use the zero line to buy a three-phase leakage switch, you don't need to buy a three-phase four-wire leakage switch, if you use a three-phase four-wire leakage switch, the incoming line must be a zero line, if you don't use the zero line, you can not connect, use the zero line must be connected.

If the incoming line of the three-phase four-wire leakage switch is not connected to the zero line, and the outgoing line is not connected to the zero line, it can also be used at this time, but it is not safe.

If the three-phase four-wire leakage switch is connected to the zero line in the incoming line, and the outgoing line does not use the zero line, which switch is working normally, the leakage will also jump.

Theoretically, if the N-line is not connected, if the three-phase is balanced, the sum of the three phases of ABC is 0, so it will not trip, but in practice, it is impossible for the three-phase to achieve real balance, so it will trip.

If the neutral line does not pass through the leakage switch, it cannot be used if there is a single-phase load, and it will trip when the load is connected. The zero line of the load of the three-phase three-wire system does not pass through the leakage, and the switch will also trip when the leakage is opened.

When the three-phase five-wire system or single-phase three-wire system is used, the protection wire must be connected to the protection trunk at the inlet end of the leakage circuit breaker, and the zero sequence current transformer shall not pass through the midway.