Noisy UPS Transformer
Noisy UPS Transformer
(OP)
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 :
voltage wave is sinusoidal
current wave was distorted
TWD was 260
-UPS output DC was Pure
Please see attachments
Voltage
http://files.engineering.com/getfile.aspx?folder=d...
Current
http://files.engineering.com/getfile.aspx?folder=d...
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 :
voltage wave is sinusoidal
current wave was distorted
TWD was 260
-UPS output DC was Pure
Please see attachments
Voltage
http://files.engineering.com/getfile.aspx?folder=d...
Current
http://files.engineering.com/getfile.aspx?folder=d...






RE: Noisy UPS Transformer
RE: Noisy UPS Transformer