Hey Experts,
I have been asked by a customer if this is kosher?
Where one may usually find more elaborate clamping and bracing of 4160v cable terminations, just past this a "METAL HOSE CLAMP" is used to group the cables on the internal routing to lugs. I see no obvious problem, everything is...
I've used Skogsgurra's method in the past and it was simple and obvious once you see the scope waveforms. I am no engineer, just a power systems technician.
In my experience, if the breaker handle is removed it may indicate that the CB is controlled by a control switch with has various electrical interlocks. Are you sure the CB does not have an electrical close spring release?
I have long experience using PLCs for controlling power systems and building automation. Virtually no "MOTION" or CNC stuff.
How complex is a conveyor/packacing extruder program. I understand axis and rpm and offset and the basics. Will a conveyor be reasonably easy to understand? I have seen...
Throw it hard and mean. Do not be timid. If is a handle operated opening throw it stiff and clean. If is "spring opened" or "shunt trip" style, push the trip button solidly and all the way. It may be hard to push. If electrical shunt trip....expect a coil failure and manually trip if possible...
Thank you all. I learned more from your help here than I lesrned from the "Paid Consultants". Almost ashamed to admit that it was simply a poorly crimped 2 cent ring terminal done twenty years ago. Hot weather, generator room around 120 degrees and large load step caused a intermittant lug to...
Oh yeah, I have set the pickup to MAX but it still occurs. I can not control the testing loads as it is real building load whichs fluctuates around 6000Kva. Customer is curtailing load for CON ED on very hot days. I have no load banks on site and wish to avoid the high expense of load banks and...
System is unchanged for twenty years with no similiar problems, but customer believes he may have more load than he has ever had in the past. HIOKI will be used to prove CT connections by viewing current waveforms this week. I have always had problems at much lower loads when CT's were wrong...
Six Generator Detroit Diesel(1750Kva units) 4160vac ASCO system carrying building load varying around 6000Kva. One unit trips 86 lockout from 87 device. Flag on 87 fires so it is not control circuit issue. Will stay on bus at lighter loads but right around this level it trips. Swapped Relay...
