250VDC solenoid valve circuit continuity verification
250VDC solenoid valve circuit continuity verification
(OP)
I am modifying the solenoid valve circuit from "deenrgize to actuate" to "energize to actuate" logic of a feed water regulatin valve at a nuclear station. I need to add some sort of low current device to monitor the circuit continuity to assure that the solenoid will operate when logic demands it to operate. Due to real-estate on the control panel my concept to add neon lamps in the circuit is not viable. Does any one have other possible solution?





RE: 250VDC solenoid valve circuit continuity verification
In principle you could bleed a low current, well below the operating level of the solenoid, through the coil and monitor for continuity that way.
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RE: 250VDC solenoid valve circuit continuity verification
RE: 250VDC solenoid valve circuit continuity verification
RE: 250VDC solenoid valve circuit continuity verification
I looked at making something a while back and can't recall any details without my file at work. Ill try to check and see if I came up with anything creative.