Installing The Ac Output Power Cable - Huawei SUN2000 Series User Manual

SUN2000-(90KTL-100KTL) Series
User Manual

5.4 Installing the AC Output Power Cable

Precautions
A three-phase AC switch needs to be configured outside the AC side of the SUN2000. To
ensure that the SUN2000 can safely disconnect from the power grid under abnormal
conditions, select an appropriate overcurrent protection device according to local power
distribution regulations.
Model
SUN2000-90KTL-H0
SUN2000-90KTL-H1
SUN2000-95KTL-INH0
SUN2000-100KTL-H1
Do not connect loads between the SUN2000 and the AC switch.
The SUN2000 is integrated with a comprehensive residual current monitoring unit (RCMU)
to distinguish fault current from residual current. Upon detecting that the residual current
exceeds the threshold, the SUN2000 immediately disconnects from the power grid.
Wiring Precautions
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Cable Specifications
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 If an AC switch that can detect residual current is installed outside the SUN2000-90KTL-H0,
SUN2000-90KTL-H1 and SUN2000-95KTL-INH0, the residual current value to trigger the switch
should be greater than 900 mA.
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If an AC switch that can detect residual current is installed outside the SUN2000-100KTL-H1, the
residual current value to trigger the switch should be greater than 1000 mA.
The ground point on the enclosure is preferred to connect to the PE cable for the
SUN2000.
The ground point in the maintenance compartment is mainly used for connecting to the
ground cable included in the multi-core AC power cable.
There are two ground points on the enclosure and you only need either of them.
It is recommended that the ground cable be connected to a nearby ground point. For a
system with multiple SUN2000s connected in parallel, connect the ground points of all
SUN2000s to ensure equipotential connections to ground cables.
If you connect a ground cable to the ground point on the enclosure shell, you are advised
to use a three-core (L1, L2, and L3) outdoor cable.
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5 Electrical Connections
Recommended Overcurrent Protection
Device Specifications
100 A
100 A
100 A
100 A
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