Title :
Development of 450 kVA triport UPS system
Author :
Kawata, Y. ; Koike, H. ; Tominaga, F. ; Nakamizo, T. ; Harada, K.
Author_Institution :
Nishimu Electron. Ind. Co. Ltd., Fukuoka, Japan
fDate :
30 Oct-2 Nov 1988
Abstract :
The development of a triport UPS (uninterruptible power system) rated at 450 kVA in three-phase that combines three units of triport UPSs, each rated at 150 kVA in three-phase, in parallel connection has been completed. With multiple units of triport UPSs running in parallel, the rule of proportionality to kVA´s can be true for load distribution and it simplifies the design of a system containing them for parallel operation. The authors describe the properties of the triad triport UPS, including load distribution characteristics, an inverter synchronization circuit, and a defective-unit exclusion circuit
Keywords :
load distribution; uninterruptible power supplies; 150 kVA; 450 kVA; defective-unit exclusion circuit; inverter synchronization circuit; load distribution; parallel connection; three-phase; triad triport UPS; triport UPS system; uninterruptible power system; Batteries; Circuits; Constitution; Electronics industry; Inductance; Inverters; Manufacturing; Power quality; Power system reliability; Uninterruptible power systems;
Conference_Titel :
Telecommunications Energy Conference, 1988. INTELEC '88., 10th International
Conference_Location :
San Diego, CA
DOI :
10.1109/INTLEC.1988.22403
