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Posted by Harry on April 27, 2024 at 7:07am 0 Comments 0 Likes
Posted by gopalsingh2000 on April 27, 2024 at 7:07am 0 Comments 0 Likes
The high current pull of an open AC solenoid is familiar as inrush current. And the current pull when the solenoid is closed is kniwn as holding current. AC solenoids can only disperse the heat generated by their holding current. This means it's very significant for the plunger to close entirely when an AC solenoid is stimulated , otherwise the coil will exhaust.
In AC electric coils the opposition or resistance of the coil is lowest when the solenoid is open, i.e. when the plunger is out. Resistance expands as the plunger is dragged into the closed position. As a result, the current draw of an AC solenoid is maximum when the solenoid is open and lowest when the solenoid is closed.
In other words, the high inrush current produces more heat than can be constantly loose by the solenoid. So if the plunger is unable to be entirely pulled into its coil - due to a mechanical problem with the valve for example, then the insulation around the coil wounds will burn and the coil will short out.
Read more about Hydraulic Solenoid Valve
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