>APC brand was the absolute worst about immediately tripping when plugged into another UPS.
At least from my experience of owning multiple APC UPS devices, they have a customizable acceptable power quality setting. In such cases setting them to accept the absolute worst quality of power could probably stop them from tripping on bad power input.
No idea if this affects the end devices, however there's probably a reason other than simply extra profit for the default power quality tolerance setting on those devices. Generally they are set to rather low tolerance threshold as the expected usage scenario is servers and other relatively sensitive equipment.
The models I own aren't really the most expensive either, some of the lower end tower models and they still have configurable acceptable power input settings available. Regarding them tripping on bad input and being "absolute worst", I consider this tripping a feature more than an anti-feature, especially as it is user configurable.
EDIT: Also wanted to add that it is actually _preferable_ for UPS to trip as immediately as possible on bad power input. That is the only purpose of such product after all: to protect the devices attached to it from bad or otherwise inadequate power input.
At least from my experience of owning multiple APC UPS devices, they have a customizable acceptable power quality setting. In such cases setting them to accept the absolute worst quality of power could probably stop them from tripping on bad power input.
No idea if this affects the end devices, however there's probably a reason other than simply extra profit for the default power quality tolerance setting on those devices. Generally they are set to rather low tolerance threshold as the expected usage scenario is servers and other relatively sensitive equipment.
The models I own aren't really the most expensive either, some of the lower end tower models and they still have configurable acceptable power input settings available. Regarding them tripping on bad input and being "absolute worst", I consider this tripping a feature more than an anti-feature, especially as it is user configurable.
EDIT: Also wanted to add that it is actually _preferable_ for UPS to trip as immediately as possible on bad power input. That is the only purpose of such product after all: to protect the devices attached to it from bad or otherwise inadequate power input.