EnerSys alpha CXPS-E3, Руководство пользователя

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9400016-J0 Rev E 38
User Guide CXPS-E3
7.2.2 Reference ground
The reference ground should be connected between the building master ground bus (MGB) or floor ground bus
(FGB) and the power system power system internal battery return bus (BRB) in ONLY ONE location. If the MGB
or FGB is connected to the power system BRB in more than one location then load current will circulate through
the reference ground bond, creating and unsafe condition known as “ground loop”.
Exact connection should be determined by the site engineer, but in general the recommended connection
locations are:
Order of precedence System characteristic Connection point
1 2V battery stacks Battery termination bar
2 Connected to larger power
system
Power system internal battery return bus
3 CXPS-E3 battery landing
bus bar
If this option is included (extends out through back cover)
4 CXPS-E3 return bar location
Return busbar
Battery landing
busbar
If not all positions are
being used for loads