[SOLVED] Masterguard series E 80-3

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zumaianh

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UPS E 80-3 No power

Hello,
I have a Masterguard UPS E 80-3 . It could not start. I checked the fuse found ok.
1. i am looking for the manual of it.
2. I need possible problem that could not start the system.




Please HELP.
Thank you
 
Last edited:

check battery supply it should be proper voltage. if not then change battery/ check ouput side mosfets/ check battery series
conected fuse



if found usefull then press helped me button
 
I have disconnect the batteries from the system.
and apply 460 voltage 3 phase + N + G.
i understand at least the system should be on, but the equipment looks dead.
 

thank you i will check it again.
i am not sure about batteries voltage. i have to check it again.
 

I found 20 batteries the total reading 26 while they should have reading from 220 to 240 vdc as per battery data.

Seal Battery
12 VDC
26 AH
 

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