Huawei SUN2000-175KTL-H0 User manual

HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
Quick Guide
Issue: 04
Part Number: 31500AQK
Date: 2019-06-06

1
Port Description
Copyright © Huawei Technologies Co., Ltd.
2019. All rights reserved.
•The information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents, but all statements,
information, and recommendations in this document do not constitute a warranty of any kind,
express or implied.
•Only qualified and trained electrical technicians are allowed to operate the device. Operators
should understand the composition and working principles of the grid-tied PV power system and
local standards.
•Before installing the device, read the user manual carefully to get familiar with product
information and safety precautions. Huawei shall not be liable for any consequences caused by
the violation of the storage, transportation, installation, and operation regulations specified in this
document and the user manual.
•Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
1Product Overview
Front View
(1) PV connection indicator
(2) Grid-tied indicator
(3) Communication indicator
(4) Alarm/Maintenance
indicator
(5) Host panel cover
(6) Maintenance
compartment
(1)
DC input terminals (controlled by DC SWITCH 1)
(2)
DC switch 1 (DC SWITCH 1)
(3)
DC input terminals (controlled by DC SWITCH 2)
(4)
DC switch 2 (DC SWITCH 2)
(5)
DC input terminals (controlled by DC SWITCH 3)
(6)
DC switch 3 (DC SWITCH 3)
(7) Ventilation valve
(8)
USB port (USB)
(9) Communications port (COM)
(10) Hole for the AC output power cable
(11) Hole for the tracking system power cable

2
Installation Angle
2.1
2Installation Requirements
SUN2000 Dimensions
Mounting Bracket Dimensions

3
3Installing the SUN2000
Installation Space
2.2
For ease of installing the SUN2000
on the mounting bracket, connecting
cables to the bottom of the
SUN2000, and maintaining the
SUN2000 in future, it is
recommended that the bottom
clearance be between 600 mm and
730 mm.
NOTE
Position for saving a
security torx
wrench
•The M12x40 bolt assemblies are delivered with
the SUN2000. If the bolt assembly length does
not meet the installation requirements, prepare
M12 bolt assemblies by yourself and use them
together with the delivered M12 nuts.
•Before installing the mounting bracket, remove
the security Torx wrench from the mounting
bracket and save it for later use.
•This document introduces how to install the
SUN2000 on a support as an example. For
details about wall-mounted installation, see the
user manual.
NOTE
1. Install the mounting bracket.

4
3. Adjust the installation positions of the handles, and install the SUN2000 on the mounting
bracket.
2. Unpack the inverter and move it to the specified position.
Handles are packed in a fitting bag and are not delivered with the SUN2000.
NOTE

5
If outdoor copper-core cables are used, select copper wiring terminals. For details about the
requirements for cables and terminals of other materials, see the user manual.
4Installing Cables
Installation Preparations
4.1
NOTE
No.
Item
Type
Specifications
Description
1
PE cable
Single
-
core outdoor
copper cable
Conductor cross
-
sectional area ≥ S/2
a(S
is the conductor cross
-
sectional area of the AC
output power cable.)
•
If you choose the
ground point on the
chassis shell for
connecting a PE
cable, prepare the PE
cable.
•
If you choose the
ground point in the
maintenance
compartment for
connecting a PE
cable, use a four-
core
AC output power
cable and do not have
to prepare a PE cable.
2
AC output
power cable
b
Outdoor copper
cable
•
Conductor cross-
sectional area: 50–
185 mm2
•Cable outer diameter:
24–66 mm (multi-
core); 14–35 mm
(single-core)
If you choose the ground
point in the maintenance
compartment for
connecting a PE cable,
use a four
-core cable.
Otherwise, use a three
-
core cable or three
single
-core cables.
Outdoor aluminum
-
core cable
•
Conductor cross-
sectional area: 70–
185 mm2(multi-core);
70–240 mm2(single-
core)
•Cable outer diameter:
24–66 mm (multi-
core); 14–35 mm
(single-core)
3
DC input power
cable
PV cable that
meets the 1500 V
standard
•
Conductor cross-
sectional area: 4–6
mm2
•
Cable outer diameter:
4.7–6.4 mm
-

6
No.
Item
Type
Specifications
Description
4
RS485
communication
s cable
Outdoor shielded
twisted pair cable
•
Conductor cross-
sectional area: 0.25–
1
mm2
•Cable outer diameter:
4–11 mm
When three
communications cables
connect to the signal
cable connector, the
outer diameter of the
cables should be 4
–8
mm.
5
(Optional)
Power cable of
the tracking
system
Three
-
core outdoor
copper cable with
dual
-layer
protection
•
Conductor cross-
sectional area: 10
mm2
•Cable outer diameter:
15–18 mm
-
Note a: The value is valid only if the conductors of the PE cable and AC power cable use the same
material. If the materials are different, ensure that the conductor cross
-sectional area of the PE
cable produces a conductance equivalent to that of the area S/2.
Note b: You are advised to use a soft cable to prevent
poor terminal contact due to the bending
stress of the cable.
Installing the PE Cable
4.2
•It is recommended that the PE cable
be connected to a nearby PE point.
Connect the PE points of all
SUN2000s in the same PV array to
ensure equipotential connections to PE
cables.
•To enhance the corrosion resistance of
a ground terminal, you are advised to
apply silica gel or paint on it after
connecting the PE cable.
NOTE

7
Opening the Maintenance Compartment Door
4.3
•Do not open the host panel of the SUN2000.
•Before opening the SUN2000 maintenance compartment door, turn off the downstream AC
output switch and three DC switches at the bottom.
•Do not open the maintenance compartment door in rainy or snowy days. If you must, take
protective measures to prevent rain or snow from entering the maintenance compartment.
•Do not leave unused screws in the maintenance compartment.
1. Loosen the screws on the maintenance
compartment door. 2. Open the maintenance compartment door and adjust the support bar.

8
(Optional) Replacing the Crimping Module
4.4
If the AC output power cable has a single core, replace the crimping module.
NOTE
3. Remove the crimping modules and three-hole rubber plug that are bound in the maintenance
compartment for future use.
Crimping
module
Three-hole
rubber plug

9
(Optional) Installing the Solar Tracker Power Cable
4.6
1. A switch-disconnector-fuse or fuse-switch-disconnector with a voltage of no less than 800 V,
current of 16 A, and protection type of gM needs to be installed between the SUN2000 and the
tracker controller for protection.
2. The cable between the wiring terminal on the power cable and the switch-disconnector-fuse or
fuse-switch-disconnector should be less than or equal to 2.5 meters.
Removing the Rubber Rings from the Crimping Module
4.5
Use scissors to cut off the joints of the rubber rings to remove them. All rubber rings are removed in
the same way.
NOTE