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Chapter 8 Parallel System
Maintenance mode: The condition to transfer to maintenance mode is same with that of single module UPS system. The maintenance switches should be switched on synchronously as possible. Thus the system can be repaired without interrupting the power supply to load.
8.2 Installation
The installation method of parallel operation system is the same with that of single module UPS system. The following contents only introduce the installation procedures relating to parallel operation system.
8.2.1Cabinet installation
1.Parallel operation system with two UPS units
The layout of 40/60 kVA UPS system is shown in
The layout of 20/30 kVA UPS system is the same with that of 40/60kVA UPS.
battery cabinet 1
UPS cabinet 1
UPS cabinet 2
battery cabinet 2
Fig. 8-5 40/60KVA UPS Layout
2. Parallel operation system with multi UPS units
Please place the battery cabinet in front of or behind the UPS cabinet for shorten the battery cables and battery temperature sampling cables and for convenient capacity expansion.
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