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POWER FOR SOLENOID VALVE

Afiq 8 months ago

When 36W supply to specification 16W solenoid valve normally open, is there is effect to the solenoid valve?

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0 robogary 8 months ago

Solenoids are inductors. There is a holding current (power) and inrush current.

The power supply needs to match the required voltage of the solenoid, provide the holding current, and also stay reasonably stiff to maintain voltage during short inrush current.

It depends on the solenoid inrush current whether the 36w power source has enough power to survive turning on. A capacitor across the power supply can help provide extra energy during the inrush when the solenoid is turned on.
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0 shabaz 8 months ago in reply to robogary

Holding current is actually higher than initial current for a solenoid, since the solenoid appears like an inductor. It's not the same as (say) a DC motor, which will have a higher initial (inrush) current (unless it's stalled).
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0 anniel747 8 months ago in reply to shabaz

Inrush current can be three to 10 times higher than holding current and can cause extreme overheating conditions, resulting in coil burnout if it is prolonged. Source: MRO
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0 anniel747 8 months ago in reply to shabaz

www.mromagazine.com/.../
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0 shabaz 8 months ago in reply to anniel747

Not true if DC is applied.
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0 shabaz 8 months ago in reply to anniel747

Not true if DC is applied.
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