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Total Harmonic Distortion

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

Solved
blackAces_apc
Commander
Commander
0 Likes
3
125

Total Harmonic Distortion

This was originally posted on APC forums on 6/17/2009


Hi All

what is the effect to the UPS if the incoming supply come with high THD its above the THD rating of the UPS? and it can affect the connect load of the UPS?. Provided im using on-line and line-inter active UPS..Thanks in advance.


Accepted Solutions
blackAces_apc
Commander
Commander
0 Likes
0
125

Re: Total Harmonic Distortion

This was originally posted on APC forums on 6/18/2009


ah ok, so im expected that all our APC ups is THD regulated at the output, its good to hear that IPaW.
BTW, if the UPS is operate on battery mode due to high THD, at the powerchute or NMC will be appear on the event log? stated that the UPS on battery due to high THD?

See Answer In Context

3 Replies 3
BillP
Administrator Administrator
Administrator
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0
125

Re: Total Harmonic Distortion

This reply was originally posted by Angela on APC forums on 6/18/2009


it will say "UPS: on battery due to an input power problem" in the event log.

blackAces_apc
Commander
Commander
0 Likes
0
125

Total Harmonic Distortion

This was originally posted on APC forums on 6/17/2009


Hi All

what is the effect to the UPS if the incoming supply come with high THD its above the THD rating of the UPS? and it can affect the connect load of the UPS?. Provided im using on-line and line-inter active UPS..Thanks in advance.

blackAces_apc
Commander
Commander
0 Likes
0
126

Re: Total Harmonic Distortion

This was originally posted on APC forums on 6/18/2009


ah ok, so im expected that all our APC ups is THD regulated at the output, its good to hear that IPaW.
BTW, if the UPS is operate on battery mode due to high THD, at the powerchute or NMC will be appear on the event log? stated that the UPS on battery due to high THD?