What is AC solenoid?

AC solenoid is an electromagnetic switching or control device designed specifically for operation with the AC power supply (AC). In most respects, these solenoids are physically similar to their direct current (DC) counterparts, with the exception of the higher rating of the coil and the inclusion of the shading coil. Higher current evaluation of AC solenoid coils are necessary due to the fact that for any given voltage AC solenoids tend to run in higher currents. The shading coil is used to prevent the "shiver" caused by the point from crossing the zero voltage in the AC cycle.

solenoids are simple electromagnetic devices used to supply remote switching or control of secondary mechanisms and consist of a wire coil wound around the insulated hollow core. The grain loaded on the spring is located with one end close to the core opening and connected to the secondary mechanism via the connection at the other end. When the coil is under tension a suitable elThe ectre current is generated by a strong magnetic field around it. This magnetic force attracts the piston, causing it cleverly moving into the core against the spring tension and controlling the secondary mechanism in this process. When the current is cut on the coil, the spring pulls the piston back to its neutral position and reset the solenoid.

The magnetic field that gives the power needed to ensure the activation movement is in the phase with the current applied to the coil. This means that it exists in a direct relation to this current, and if the current decreases, the field strength and subsequently the solenoid output force. In the case of DC solenoid, this phenomenon does not represent any problems, because the current supplied to the coil is of constant size. However, the same cannot be said of AC solenoid, because the current constantly cycling between the peak of the positive voltage, through the zero voltage to the top of the negative voltage. This cycle occurs 50 to 60 times per second in average nAPPROPMENT AC.

6 This causes the piston to constantly bounce or "trembling" because it is alternatively released and reinstated. This can cause excessive wear and overheating of the solenoid and may cause if necessary, cause any solenoid destruction. To prevent this chat, AC solenoid uses another coil known as the shading coil.

This coil creates a magnetic field that is 90 degrees off the phase and slightly weaker than the main coil. This field is strong enough to hold the piston in place when the main field weakens near the point of zero ox, thus preventing the trembling. This means that AC solenoid rates can be used for DC power, but not vice versa. However, attention should be paid to AC and DC solenoids, because the coil on AC solenoid is generally evaluated on a higher current than a DC coil of a similar voltage for processing typically higher current currents.