Hi everybody
A 1800kw electrical motor running with normal temperature and current but with a humming noise.CBM team saying that no vibration has detected because of bearings or a mechanical issue, however the vibration specturm analysis shows frequency of 100hz beside the Ffund 50hz .We are...
The Transformer feeders in our plant are running by Sepam T40s at both primary and secondary sides.
During the last 8 years we encountered issues that happened quite several times ,in which the Sepam of Primary record an external trip and open its SWG..
This configured external trip input is...
Is there any method to detect failure in the rotor of a 200 kW motor that produces a humming noise? In a previous experience, a similar motor exhibited a similar noise, and upon disassembly, we found that its rotor had elimination gaps.
I am wondering which technique could help determine...
50kva transformer supplying battery charger system start making a loud humming sound with load and. With noloaf ,transformer insulation resistance is high,but when using scope meter,output currents was distorting any help
Wave form...
Hello experts
DC UPS system supplied with 50KVA transformer , Recently Transformer humming (noise ) became up-normal . this start happened in different UPS system in our site.
humming Transformer was replace with new Transformer but the sound still high.
-Transformer output AC waveform was ...
