Rentech HYD 3000-EP - Page 33

HYD 3K~6K-EPUser manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd。
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The inverter is transformer-
less, requires the positive pole and
negative pole of the PV array are NOT grounded. Otherwise it will cause
inverter failure. In the PV power system, all non current carrying metal
parts (such as: PV module frame, PV rack, combiner
box enclosure,
inverter enclosure) should be connected to earth.
Attention
The PGND cables are prepared ( ℃4mm²outdoor power cables are
recommended for grounding purposes),the color of cable should be yellow
Procedure:
Step 1 Remove the
insulation layer with an appropriate length using a wire
stripper, as shown in Fig.4-1.
Step 2
Insert the exposed core wires into the OT terminal and crimp them by
using a crimping tool, as shown in Fig.4-1.
Step 3 Install the crimped OT terminal, flat was
her using M5 screw, and
tighten the screw to a torque of 3 N.m using an Allen wrench.
Note 1:
L3 is the length between the insulation layer of the ground cable and the crimped part.L4 is
the distance between the crimped part and core wires protruding from
the crimped part.
Note 2:
The cavity formed after crimping the conductor crimp strip shall wrap the core wires
completely. The core wires shall contact the terminal closely.
Fig.4-1 Connecting PGND cable
less, requires the positive pole and
negative pole of the PV array are NOT grounded. Otherwise it will cause
inverter failure. In the PV power system, all non current carrying metal
box enclosure,
The PGND cables are prepared ( ℃4mm²outdoor power cables are
recommended for grounding purposes),the color of cable should be yellow
-green.
insulation layer with an appropriate length using a wire
Insert the exposed core wires into the OT terminal and crimp them by
her using M5 screw, and
L3 is the length between the insulation layer of the ground cable and the crimped part.L4 is
the crimped part.
The cavity formed after crimping the conductor crimp strip shall wrap the core wires