Posts:
33
Registered:
2/19/09
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SBP5000RMI2U issue
Posted:
Jul 27, 2010 6:02 AM
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Hi Guys
Before installation of the bypass panel is there any parameters we need to consider like the orientation of L-L or L-N, L-G from utility and UPS?
Co'z previously from my former company we counter some issue, as normal when the SBP was switch to Normal everything are doing fine but when we switch the SBP to bypass the utility breaker will tripped off and the UPS goes to Battery Mode.
No load connected to UPS and the SBP...,
Is there any issue if the out put of UPS is L-L and the Utility L-G or L-N with regards to the SBP?
Thanks
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Posts:
475
Registered:
3/24/10
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Re: SBP5000RMI2U issue
Posted:
Jul 27, 2010 8:04 AM
in response to: BlackAces
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This is designed to be used in 230 VAC environments with a L-N-G configuration.
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Jul 27, 2010 11:08 PM
in response to: clarkson
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so there is an issue w/ the configuration, co'z our supply line is 220VAC L-L.., so can i say that possible this configuration cause the breaker to Tripped? but the SBP is break-before-make right?
Coz right now we have a client that need SBP for there 3 APC units of SURTD5000XLI, what im worry about is that, what if the breaker will Tripped off again. We can't afford to lose it..
any advice..thanks
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Posts:
475
Registered:
3/24/10
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Re: SBP5000RMI2U issue
Posted:
Jul 28, 2010 12:44 PM
in response to: BlackAces
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Yes, this is a break before make bypass switch. Are you using the exact same configuration (same UPS and service bypass panel) this time as you were last time?
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Jul 31, 2010 10:44 AM
in response to: clarkson
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yes same configuration that were going to used.
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Posts:
475
Registered:
3/24/10
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Re: SBP5000RMI2U issue
Posted:
Aug 2, 2010 10:57 AM
in response to: BlackAces
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Interesting. I will see if this is unsuitable for a L-L-G configuration. What was the load on the branch cirucit and what was the breaker rated for? Could it have been inrush current tripping it?
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Aug 3, 2010 2:28 AM
in response to: clarkson
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just a few clone server and some router and switches, the breaker rating if I'm not mistaken was 60A.
But the time we switch the SBP to bypass there's no load connected for both UPS and SBP. What we are doing was that time just for a testing only, but i bit surprise when the breaker tripped off.
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Posts:
475
Registered:
3/24/10
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Re: SBP5000RMI2U issue
Posted:
Aug 3, 2010 12:23 PM
in response to: BlackAces
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Thanks. Did it also trip the upstream breaker when switched to the maintenance/test position? Or was it just full bypass?
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Posts:
92
Registered:
6/2/09
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Re: SBP5000RMI2U issue
Posted:
Aug 3, 2010 2:43 PM
in response to: BlackAces
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Did you put the UPS into manual bypass before operating the Bypass switch on the SBP5000RMI2U?
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 2:47 AM
in response to: clarkson
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Nope, just only one of the branch breaker was trip. And that breaker was the supply breaker for the UPS.
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 2:49 AM
in response to: upsguy
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no, we didn't put the UPS into manual bypass when we switch the SBP to Bypass..
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Posts:
475
Registered:
3/24/10
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 2:16 PM
in response to: BlackAces
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Did that breaker trip when you switched it to the Maintenance/Test position and when you switched it to the full Bypass position? Or did it only trip at one of these positions
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Posts:
92
Registered:
6/2/09
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 8:08 PM
in response to: BlackAces
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Sorry meant to say automatic bypass... Read the upper right hand corner of the install document.
http://www.apcmedia.com/salestools/SCON-7Q3JQ2_R0_EN.pdf
The UPS must be in bypass when rotating the switch. I'd try that then see if your still tripping the upstream breaker. |
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 10:40 PM
in response to: clarkson
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on test position it won't trip the breaker only when full bypass position...
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Posts:
33
Registered:
2/19/09
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Re: SBP5000RMI2U issue
Posted:
Aug 4, 2010 10:44 PM
in response to: upsguy
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base from the manual, we have set the ups to automatic bypass right?, its that necessary and why?
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