Grounding The Sun2000 Over A Pe Point - Huawei SUN2000-33KTL-US User Manual

SUN2000-(33KTL, 36KTL, 40KTL)-US
User Manual
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5.2.1 Grounding the SUN2000 over a PE Point

Prerequisites
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.
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Context
There are two ground points on the enclosure and one of them is standby.
Procedure
Step 1 Prepare the OT terminal.
Step 2 Secure the ground cable using the ground screw.
Issue 07 (2019-06-20)
Proper grounding is helpful for resisting the impact of surge voltage and improving the
electromagnetic interference (EMI) performance. Before connecting the AC power cable,
DC power cable, and communications cable, connect ground cables to the PE point and
PV side ground point.
It is recommended that the ground cable be connected to a nearby ground point. Connect
the ground points of all SUN2000s in the same PV array to ensure equipotential
connections to ground cables.
If you connect a ground cable to the PE point on the shell, ensure that the ground cable
and OT terminal are available.
− Recommended ground cable: an outdoor copper-core cable with a cross-sectional
area of 6 AWG or more
− OT terminal: M6
If you connect a ground cable to the PE point in the maintenance compartment, prepare
the AC output power cable together with the ground cable. For details, see
Connecting AC Output Power
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Cables.
5 Connecting Cables
5.4
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