- Mar 26, 2018
- 29
- 3
- 4,535
So I received a company supplied UPS in order to keep my setup going during rolling blackouts or any loss of power.
Firstly I plug it in and there is alot (noticable/audible) coil whine, wondering if this is normal, possibly just the battery charging.
Next when it switches over to backup battery, the fans all kick in but I can hear an even higher whine, sort of a high voltage sound, hard to explain, but its a buzzing sound.
Overall it still works, on the software its showing all the correct information, the batteries do take over and keep the systems all on without a downtime. But my main concern is that The underside of it at the backend is getting rather Hot, Not too hot to touch but borderline too hot. I have the UPS is a open space on a wire rack, So there is plenty of ventilation above, below, and on all sides of the UPS. The software only showed about a 10% load being pulled off the UPS even on Battery Backup.
My worry with this is that it may get so hot it can cause A fire when im not at home etc. The unit is a Mercer Me-3000-VU+ rated at 3000va/1800W. It has 4 x 12 v batteries in it wired to make 48v, then passed through a transformer to output the 230v my country uses.
Long story short, even with the UPS well ventilated and on low load it is getting rather hot underneath, is this normal or that plus the coil whine could the unit be faulty? Could it also be down to the extensions for the output could be wired badly? or would this not be an issue?
Firstly I plug it in and there is alot (noticable/audible) coil whine, wondering if this is normal, possibly just the battery charging.
Next when it switches over to backup battery, the fans all kick in but I can hear an even higher whine, sort of a high voltage sound, hard to explain, but its a buzzing sound.
Overall it still works, on the software its showing all the correct information, the batteries do take over and keep the systems all on without a downtime. But my main concern is that The underside of it at the backend is getting rather Hot, Not too hot to touch but borderline too hot. I have the UPS is a open space on a wire rack, So there is plenty of ventilation above, below, and on all sides of the UPS. The software only showed about a 10% load being pulled off the UPS even on Battery Backup.
My worry with this is that it may get so hot it can cause A fire when im not at home etc. The unit is a Mercer Me-3000-VU+ rated at 3000va/1800W. It has 4 x 12 v batteries in it wired to make 48v, then passed through a transformer to output the 230v my country uses.
Long story short, even with the UPS well ventilated and on low load it is getting rather hot underneath, is this normal or that plus the coil whine could the unit be faulty? Could it also be down to the extensions for the output could be wired badly? or would this not be an issue?
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