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9 Parallel Operation
9.1 Principle of Operation
PROTECT 1. has been designed for parallel operation with n+x
technology (“n” here stands for the number of units required for
load supply, “x” for the degree of redundancy). Up to 3 units of the
same type can be connected in parallel here to increase the
output power and/or achieve higher availability.
NS Hauptverteilung MI main distribution
USV Einspeisung UPS feed
Parallelfeld / Handumgehung plus USV
Unterverteilung
Parallel field / manual bypass plus UPS
subdistribution
This results in the following constellations with n+x technology:
1 + 0 Use of 1 unit max. 10, 15 or
20 kVA
No redundancy
1 + 1 Use of 2 units max. 10, 15 or
20 kVA
Single redundancy
1 + 2 Use of 3 units max. 10, 15 or
20 kVA
Double redundancy
(max. expansion level)
2 + 0 Use of 2 units max. 20, 30 or
40 kVA
No redundancy
2 + 1 Use of 3 units max. 20, 30 or
40 kVA
Single redundancy
(max. expansion level)
3 + 0 Use of 3 units max. 20, 30 or
40 kVA
No redundancy (max.
expansion level)