Vertiv Tech EXS 0080kTK16FN01000, User Manual

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Vertiv | Liebert EXS 80kVA UPS | User Manual 6
Overview
During the normal operation of the UPS, except for the maintenance bypass switch Q3, other switches shall be
closed.
Figure 1-2 UPS Power Supply Switch Configuration
• The mains input and bypass input share the same neutral line.
1.2.5. Battery Circuit Breaker (BCB)
The external battery is connected to the UPS via the BCB. The BCB box is an option that is installed close to the
battery. The BCB is manually closed and has a shunt tripping coil. When the system is faulty and the BCB needs
to be disconnected, the UPS control circuit sends a signal to the shunt tripping coil to trip the BCB. It also has a
magnetic trip facility for overload and short circuit protection.
1.3. Parallel System
Up to four UPS modules can be parallely connected to form a parallel system to increase the system capacity and
reliability . The load is shared equally between the paralleled UPS modules.
In addition, two UPS modules or a parallel system may be a dual- bus system. Every parallel system has autonomous
output. Each parallel system has independent output. Output synchronization is achieved through the LBS cable
or LBS device, thus enabling seamless load transfer between the two parallel systems or single modules through
the STS device.