Perform the following operations in a parallel system using the TN-C power distribution
system:
● Short-circuit the input N and PE, and short-circuit the battery port N.
● It is recommended that you connect AC loads and battery packs only to the UPS PE
terminal.
● The recommended type for magnetic rings 1, 2, and 3 is DN85Hx4 or E2Fx4.
Table 2-3
Specications of magnetic rings from three vendors
Vendor Magnetic Ring
DMEGC R10K
TDK HS10
TDG TS10
The magnetic conductivity of manganese and zinc magnetic rings is greater than 10,000,
and the recommended internal diameter of magnetic rings is greater than 10 mm (easy for
wire coiling). The number of coiling circles is 5 or greater.
UPS2000-G- (6 kVA-20 kVA)
User Manual 2 Quick Introduction
Issue 18 (2021-07-16) Copyright © Huawei Technologies Co., Ltd. 24
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