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Five wires of electric valve three-phase motor

by:Sino Valves     2021-03-10
How to wire the three-phase five-wire motor of the valve electric valve If the star connection method is used, the terminal should have a neutral wire connection position in addition to the three-phase live wire. The ground wire is naturally connected to the housing; if it is delta connection It's simpler, just throw the zero line away from the other lines in place. The three-phase five-wire system refers to three power lines, one neutral line and one ground protection line. If the motor is connected in a star shape, it must be connected to the neutral wire. The protective ground connection method must be connected to the star wire. 1. In the three-phase five-wire system, there are three live wires. One ground wire, one zero wire. Second, there are two commonly used motors, single-phase motors and three-phase motors. 3. If it is connected to a single motor, take a live wire and a neutral wire and connect to the motor. Fourth, if it is a three-phase motor, take three live wires to connect to the motor respectively: w1 six-wire electric valve equipped with fine small electric actuators are divided into on-off type and regulating type, and are composed of driving switch control and signal feedback control. The functions of the six terminal blocks of the on-off six-wire electric valve are: 1, 2, 3 for drive control, 4, 5, and 6 for signal feedback control; when 1, 2 is turned on, the valve opens while maintaining 4, 5 formation Loop, feedback the signal of the electric valve in position; when 1, 3 is turned on, the valve is closed, while maintaining 4 and 6 to form a loop, feedback the signal of the electric valve in position. The six terminal functions of the adjustable six-wire electric valve are: 1 and 2 are electric drive control, which can be connected to AC220V or DC24V power supply voltage (if 380V voltage is required, please specify separately). 3, 4 are input signal control, can receive 4-20mA current signal or 0-10V voltage signal. 5 and 6 are output signal feedback control, which can feedback 4-20mA current signal or 0-10V voltage signal correspondingly, which is convenient for remote operation and control. Electric valves are generally driven by motors, which are more resistant to voltage shocks. Solenoid valves are fast opening and fast closing. They are generally used in places where small flow and small pressure are required, and electric valves are reversed where high switching frequency is required. The opening degree of the electric valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline, but the solenoid valve cannot meet this requirement. 220V electric valve wiring diagram The power transmitted from the power plant to the city is three-phase four-wire electricity after passing through the transformer. You can find four wires hanging side by side on the pole, one of which is the neutral wire, the term is called the neutral wire ( N), the remaining three wires are called live wires. The voltage between the two live wires is 380V, and the voltage between a neutral wire (N) and any live wire is 220V. If you live in a city building, you can also see three live wires and A neutral wire is reasonably distributed to each unit. If the unit you live in has a lot of electrical equipment such as air conditioners, and the power load is too large, the voltage measured by a voltmeter is obviously lower than other units with low power consumption. .Seriously cause the electrical appliances to fail to start and operate normally. Attentions when connecting the electric valve circuit. Line safety. When dealing with the two electric valve wiring diagrams, we must carefully analyze the difference between the two wiring diagrams. Carelessness may cause accidents. When dealing with 380V electric valves, we must pay more attention, because the power is large, and if there is an electric shock, it will be killed on the spot. 380V to 220V electric valve. During the process of 380V electric valve to 220V electric valve, professional operators must be required to operate it, and unauthorized conversion is prohibited. Once a failure occurs, on the one hand, the entire circuit will be short-circuited; on the other hand, it may cause huge economic losses due to burnout of the machine, and even more serious accidents.
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