stapler causing lights to blink
stapler causing lights to blink
(OP)
Here is the situation, 75kVA 480/208 3-phase transformer (lightly loaded) feeding panel board ~10 ft away. On one branch circuit ~20' away is loaded with a desk type electronic paper stapler. The stapler goes WAP! and the t-8, electronic rapid start luminaries blink. customer is annoyed. Would a "plug in" ~300V ac cap (in an adjacent outlet) do any help? Adding series inductance to the stapler circuit (intuitively to me) would compound the problem?
Thanks in advance
Thanks in advance






RE: stapler causing lights to blink
I would be interested in seeing what happens when you plug the stapler into the same outlet through a 100ft extension cord.
But alas the first thing to try, as a solution, is to plug the stapler into one of those so called "surge protector" power strips. This should clip off the bulk of the spike/s and it may be enough to stop the ballasts from reacting.
Keith Cress
Flamin Systems, Inc.- <http://www.flaminsystems.com>
RE: stapler causing lights to blink
However, at this facility the fire inpectors go high order when they see extension cords ("as a substitute for permanent wiring"). Not to mention a homemade plug in capacitor! Just try and explain that to one of those bone heads.
And also my experience with high end service entrance surge suppressors have been that the MOV's degrade and are only good for a finite amount of hits. I assume the strips would be similar.
RE: stapler causing lights to blink
I thought that circuit breaker-ed power strips were allowed these days. I have had inspectors look at them just to make sure they where CB'd then dropped them and moved on.
Perhaps the ones with 3 ft cords might fly?
I couldn't even operate without them. My three desks probably have 35 plugs each.
Keith Cress
Flamin Systems, Inc.- <http://www.flaminsystems.com>
RE: stapler causing lights to blink