SW4024 switching issue [RE-wrenches]

[Bob-O Schultze, Electron Connection]

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Kirk,
Is your customer shutting off the genny by remote kill switch so the 
ac voltage decays fairly slowly or does the problem still occur if 
you flip the genny output CB or switch off first?
Bob-O


>Hello,
>
>I have a customer with a Trace SW4024 and Onan 6.5 kw propane generator.
>After years of reliable transfer switching (no power interuption), they
>reported to me that the 4024 would no longer hold up their computer, TV,
>and VCR when the generator turns off. The switching time of the internal
>relay between generator and battery/inverter AC is now long enough to
>power down these components momentarily.
>
>I wonder if the relay could be "chattering" when the generator turns
>off, due to the generator's voltage fluctuating as it slows to a stop.
>Any ideas? Low AC voltage cutout is presently set at the default of 106
>volts. I'm wondering if setting this up higher could help.
>
>Would disconnecting the generator AC cleanly, via an external contactor
>/ relay, before it was signaled to turn off help?
>
>Thanks,
>
>Kirk

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