Powerware 9335 User Manual Page 42

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5-12 Powerware 9335 (80 kVA and 120 kVA) Installation and Operation
164201396 REV A 071103
or constant voltage mode (temperature compensated, available as an option) based on
battery condition.
All batteries used in conjunction with the Powerware 9335 are external to the UPS
cabinet. The internal charger charges the entire battery system, with a maximum current
as indicated in Chapter 13, “Product Specifications”. Note that the higher the battery
capacity, the longer the recharge time required to fully recharge the batteries.
5.3.5 Static Bypass
The bypass has a continuous-duty SCR switch and a back-feed contactor (K4) in the
Bypass circuit. In normal mode, the contactor connects the inverter to the output. A
contactor (K2) provides isolation to the inverter when the system is on bypass.
5.3.6 Maintenance Bypass
A user accessible shrouded 4-wire Mechanical Maintenance Bypass switch is provided
internal to the cabinet.
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