MASTER HE
SPTMHEE3T16FREN
9
Dynamic Dual Bus System (PSJ)
Two independent systems (up to 4 units each) can be connected in a “Dynamic Dual Bus” configuration by means of the
PSJ (Parallel System Joiner) option.
This enables the two systems to be joined to form a single system when, for example, part of one system is undergoing
maintenance and it is felt appropriate to use the redundant UPS for both bars of the load. The synchronization and the
equal distribution of power is guaranteed by the PSJ.
This characteristic provides an extreme flexibility of the systems in case of maintenance or when is necessary to modify
the redundancy level between the two bus.
Note: PSJ operates with distributed parallel systems, only.
Frequency Converter
Units in standard configuration at 400 V can operate as frequency converters (50/60 Hz and vice versa), whether or not
batteries are present. This feature can be set at the commissioning. The bypass is inhibited in this configuration and
frequency converters with operating voltages other than 400 V, such as 440 V, 460V, etc. can be supplied on request.
With such configuration the UPS can be used without input neutral cable.
Note: For Frequency converter applications please contact your sales representative to ensure that converter layout and
technical arrangements comply with all tender requirements.
Summary of Contents for Master HE 100 kVA
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