AC contactor silent operation of the circuit

The AC contactor operates silently, demonstrating significant energy-saving effects, low noise, and a reduced operating temperature, which contributes to an extended lifespan. It is widely utilized in the production industry. When the SB2 button is pressed, the N-terminal receives a positive power supply while the U end is negative, allowing for the connection of the VD circuit, which supplies the KM contactor with pulsating DC. The KM contactor's normally closed contacts open, and the circuit is interrupted at Ri, while VD1 exits the circuit. When the U side is positive and the N terminal is negative, VD2 conducts, charging capacitor C2, which simultaneously activates the KM contactor in freewheeling mode. When the N terminal returns to a positive state, the KM contactor maintains the charge current from the DC power supply via capacitor C. The S switch functions as an AC-DC converter, allowing for fault rectification circuit maintenance. During repairs, the switch can convert the contactor to cross-flow operation without disrupting the normal functioning of electrical equipment. The common AC contactor model CJ10-100 utilizes a capacitance of 1.47 µF/400V, with diode model 1N4007; model CJ10-150 also uses a capacitance of 1.47 µF/400V with diode model 1N4007; while model CJ12B-250 employs a capacitance of 2 µF/400V, using diode model 1N4007.

The AC contactor is an essential component in various industrial applications, providing reliable control over electrical circuits. Its silent operation is particularly advantageous in environments where noise reduction is critical. The energy-saving characteristics not only enhance operational efficiency but also contribute to lower energy costs, making it an economically viable choice for manufacturers.

The operation of the AC contactor is facilitated through the interaction of various components. The pressing of the SB2 button initiates the control sequence, where the positive voltage at the N-terminal prompts the connection of the VD circuit. This action results in the KM contactor engaging, which is crucial for controlling larger loads. The use of pulsating DC allows for smoother operation and reduces wear on mechanical parts, extending the overall lifespan of the contactor.

In the event of a fault or the need for maintenance, the S switch provides a seamless transition to AC operation, ensuring that the electrical system remains operational. This design consideration minimizes downtime and enhances the reliability of the entire system. The specified models, such as CJ10-100, CJ10-150, and CJ12B-250, demonstrate a range of capacitance values suitable for different applications, allowing engineers to select the appropriate model based on their specific circuit requirements.

The inclusion of diodes such as the 1N4007 ensures that the circuit is protected from reverse voltage spikes, which can damage sensitive components. This protective measure is vital in maintaining the integrity of the circuit and ensuring the longevity of the AC contactor.

Overall, the AC contactor represents a sophisticated solution for controlling electrical circuits in industrial environments, combining efficiency, reliability, and ease of maintenance.AC contactor has a silent operation of the circuit due to energy-saving effect is remarkable, no noise, low operating temperature, extend life, etc., workers and peasants in th e production industry, has been widely used. Works shown. Press SB2, the N-terminal when the power is positive, U end is negative, VD] access circuit, supply contactor KM pulsating DC contactor KM KM action normally closed contacts break open, Ri, VD1 exit circuit. When U side is positive, N terminal is negative, positive VD2 conduction, charging the capacitor c2, wells simultaneously turned contactor KM freewheeling.

When the N-terminus of recovery is positive, the contactor KM against electric capacity c] DC power supply charge current is maintained. S switch for the AC-DC converter, such as the need for fault rectification circuit maintenance when the repair can be converted into AC switch S means the contactor into cross flow operation, without affecting the normal operation of electrical equipment.

Common AC contactor silent operation of the circuit model CJ10-100 • When capacitance is 1. 47yF/400V, diode model 1N4007; model number CJ10-150, the capacitance of 1.47yFl400V. Diode model 1N4007; CJ12B-250 model, the capacitance is 2, the F/400V, diode model IN4007.