The end of life of UPS
The end of life of UPS
(OP)
Dear,
We are planning to replace UPS with new one. Current using
UPS is 200KVA and 17 years old.
Japanease UPS manufacturer recomended to replace for the safety since over 15 years.
I would like to know UPS`s the end of life time in Europe & US except batteries`s the end of life.
How long is the life time of UPS?
How should we consider about UPS main unit with double conversion type?
Would you please advise me?
Best regards,
We are planning to replace UPS with new one. Current using
UPS is 200KVA and 17 years old.
Japanease UPS manufacturer recomended to replace for the safety since over 15 years.
I would like to know UPS`s the end of life time in Europe & US except batteries`s the end of life.
How long is the life time of UPS?
How should we consider about UPS main unit with double conversion type?
Would you please advise me?
Best regards,






RE: The end of life of UPS
ftp://www.apcmedia.com/salestools/VAVR-5W5PF5_R0_EN.pdf
David Baird
mrbaird@hotmail.com
Sr Controls Engineer
EET degree.
Journeyman Electrician.
RE: The end of life of UPS
Double conversion remains the technology of choice in that size range, although a few manufacturers (e.g. APC) are promoting other systems.
RE: The end of life of UPS
"Venditori de oleum-vipera non vigere excordis populi"
RE: The end of life of UPS
The inverter of a double conversion system supplies the load at all times whether the load is supported by utility power or by stored energy. Other systems rely on fast switching of the load from utility to an alternate source when the utility fails. Obviously the batteries are a possible point of failure with either system.
RE: The end of life of UPS
I would regard a salesman’s suggestion of “replace for the safety since over 15 years” as suspect, self-serving and having no concern for you as a client except to generate a fat purchase order.
Have maintenance/repair expenses increased significantly or reliability appreciably dropped? These seem like they would be far more valid reasons to consider replacement.
RE: The end of life of UPS
We are planning to replace UPS with new one. Current using
UPS is 200KVA and 17 years old.
Japanease UPS manufacturer recomended to replace for the safety since over 15 years.
I would like to know UPS`s the end of life time in Europe & US except batteries`s the end of life.
///The manufacturer is approximately correct. The off the shelf VFDs from ABB have approximately 53000hrs MTBF. This would be close to 15years.\\\
How long is the life time of UPS?
///Since the inverter in UPS is approximately comparable to VFD, 15years of MTBF is reasonable. However, MTBF does not necessarily mean to be used as a criterion for replacement. There are additional factors involved, e.g. UPS application to a process that may result in a costly outage if the UPS fails.\\\
How should we consider about UPS main unit with double conversion type?
///Because of the double parts count, the MTBF is expected to be lower.\\\
RE: The end of life of UPS
RE: The end of life of UPS
RE: The end of life of UPS
I agree with jraef in that statistically systems begin to experience more failures once they surpass the 15 year range. I wouldn't necessarily replace equipment of that age unless there are other reasons.
RE: The end of life of UPS
If you have no problems with support for the UPS from the manufacturer or a third party, and there has been no degradation of the reliability or increase in component failure rate, there seems little reason to replace the whole unit.
-----------------------------------
Start each new day with a smile.
Get it over with.
RE: The end of life of UPS
RE: The end of life of UPS
As the developement in the field of power electronics is very fast and availability of spare parts of a 15 year or more old equipment is a real problem, therefore replacement of such older equipment is very economical and useful.
God bless.
mta2003
RE: The end of life of UPS
RE: The end of life of UPS
Also the electronic technology and software upgrades changes so much by then that replacement becomes very attractive rather than trying to keep up old unit.
Most UPS system we have 'upgraded' by replacing them were in the range of 15-20 years old.
RE: The end of life of UPS
Many thanks for your quick answer.
There is many useful answers on this.
I will prepare a comment for these answers.
Would you please give me short term?
I have to consider for your advise.
Sorry for late reply.
Best regards,