aunglay
Newbie level 6
Hi I m facing with the main controller unit of industrial UPS that giving worng signal and detect same warning to UPS(total 5 unit).
UPS envirnment is oil rig.
Input is coming from gen set 690 ph ph 60 hz source.
Power analyzer proved input is no problem.
But input is delta 3 wires + ground.
All the unit are using del-star neutral ground connection for UPS input and star-delta neutral grounded output transformer.
All the input and output transformer are installed on same cabinet with one partion.
Is it possible transformer indude voltage cause wrong signal?
Is is possible due to noise source because of noise pick up ?
How can i detect noise generating in the UPS inside or external noise source?
I really dont konw which noise level is accpetable and how and where i have to measure?
Please advice me.
UPS envirnment is oil rig.
Input is coming from gen set 690 ph ph 60 hz source.
Power analyzer proved input is no problem.
But input is delta 3 wires + ground.
All the unit are using del-star neutral ground connection for UPS input and star-delta neutral grounded output transformer.
All the input and output transformer are installed on same cabinet with one partion.
Is it possible transformer indude voltage cause wrong signal?
Is is possible due to noise source because of noise pick up ?
How can i detect noise generating in the UPS inside or external noise source?
I really dont konw which noise level is accpetable and how and where i have to measure?
Please advice me.
