Gtec NS3000 Series, User Manual

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18 NS3000 UPS 60KVA~120KVA User Manual
Cable
Section
（ mm² ）
- 50 70 95
N 50 70 95
PE
Cable
Section
（
mm²
）
PE 35 50 70
Note
The recommended cable section for power cables are only for situations described below
：
 Ambient temperature
：
30
℃
.
 AC loss less than 3%
，
DC loss less than 1%
，
The length of the AC power cables
are no longer than 50 m and the length of the DC power cables are no longer than
30 m.
 Currents listed in the table are based on the 380V system (Line-to-line voltage).
 The size of neutral lines should be 1.5~1.7 times the value listed above when the
predominant load is non-linear.
3.6.2 Specifications for Power Cables Terminal
Specifications for power cables connector are listed as Table 3.3.
Table 3.3 Requirements for power module terminal
Port Type Connection Bolt
Bolt
Aperture
Torque
Moment
Mains input
60KVA
Cables
crimped
OT terminal
M6
7mm 4.9Nm
90-
120KVA
Bypass
Input
60KVA Cables
crimped
OT terminal
M6 7mm 4.9Nm
90-
120KVA
Battery
Input
60KVA Cables
crimped
OT terminal
M6 7mm 4.9Nm
90-
120KVA
Output
60KVA Cables
crimped
OT terminal
M6 7mm 4.9Nm
90-
120KVA
PE
60KVA Cables
crimped
OT terminal
M6 7mm 4.9Nm
90-
120KVA
3.6.3 Circuit Breaker
The circuit breakers (CB) for the system are recommended in Table 3.4.
Table 3.4 Recommended CB
Installed position 60KVA 90KVA 120KVA
Battery CB 225A,250Vdc 315A,250Vdc 400A,250Vdc
Attention
The CB with RCD (Residual Current Device) is not suggested for the system.