ECM1
Electrical
- Dec 22, 2008
- 7
Did some searching of the forum, but didn't find an answer to my question.
If you used an ohm meter, and measured across a solenoid coil are you measuring the resistance of the coil or the reactance?
What I want to do is calculate the inrush and holding currents of a solenoid valve in a 24V AC 60 Hz application.
So if I take a measurement of the solenoid coil with the plunger in the open position and the closed position would I use this ohms value to calculate the inrush and holding current with ohms law? I'm currently reading 23? in the open position. Which should equal 1.04 Amp but the manufacturer rates the inrush at 0.41 Amp.
If not is there a way to calculate the inrush current and how do I do it? Also is there any possible way that the inrush current could be made larger. (Other than pulling the solenoid plunger further out of its open resting position) Say something like the plunger having a greater amount of pull, or a lower than 24 voltage applied to it. Or is the inrush current for a specific coil set by the resistance and just the amount of time the inrush current would be present before lowering to the holding current would be changed by these things such as voltage and pull.
Thanks for any help you can provide.
If you used an ohm meter, and measured across a solenoid coil are you measuring the resistance of the coil or the reactance?
What I want to do is calculate the inrush and holding currents of a solenoid valve in a 24V AC 60 Hz application.
So if I take a measurement of the solenoid coil with the plunger in the open position and the closed position would I use this ohms value to calculate the inrush and holding current with ohms law? I'm currently reading 23? in the open position. Which should equal 1.04 Amp but the manufacturer rates the inrush at 0.41 Amp.
If not is there a way to calculate the inrush current and how do I do it? Also is there any possible way that the inrush current could be made larger. (Other than pulling the solenoid plunger further out of its open resting position) Say something like the plunger having a greater amount of pull, or a lower than 24 voltage applied to it. Or is the inrush current for a specific coil set by the resistance and just the amount of time the inrush current would be present before lowering to the holding current would be changed by these things such as voltage and pull.
Thanks for any help you can provide.