Nominal voltage on the solenoid is 23-24.9 kV, and that's correct, the main arc interrupters are not involved in the fault. In 4 of the 5 units that have failed the vacuum bottles have been completely intact.
In response to magoo2/racobb, the reclosers are all in substations, so your comment...
Thank you for your comments everyone. To the folks asking why we don't just bypass them all, I'm afraid I'm answering somewhat out of my area of expertise but suffice to say our P&C people told us this was not feasible due to the quantity of distribution feeders we would be leaving stripped of...
An update for any interested. We have reached out to a fiberglass fabric welding barrier manufacturer for assistance. This manufacturer believes they can fabricate a "barbeque cover" style wrap for the at-risk units of sufficient strength to contain the initial burst of burning oil (it's less...
Hi All,
The company I work for has been experiencing chronic violent failures of type VWVE oil-filled vacuum reclosers. We have approximately 60 of the same model recloser in-service for over 20 years and in the last 14 months we have had 5 fail catastrophically. To date 4-of-5 failures have...
