GSHK 2K User manual

Installation and Operation Manual
Applicable model: 2K/3K/3.6K/4K/5K/6K
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User Manual - Contents
Contents
Forward - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Application Model - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Applicable Personnel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Symbol Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
1 Safety Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
1.1 Personnel Safety- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
1.2 PV Inverter Protection- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
1.3 Installation Safety- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
1.4 Electrical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
1.5 Operating and Commissioning- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
1.6 Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
1.7 Additional Information- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
2 Overview of the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.1 Functional Models- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.2 Network Application- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.3 Outline and Dimensions- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -10
2.4 Working Process - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12
2.5 Working Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13
3 Storage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14
4 Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15
4.1 Checking the Outer Packing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15
4.2 Moving the inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -16
4.3 Identify the PV Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 16
4.4 Installation Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -17
4.5 Installing a Rear Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22
4.6 Installing the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24
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5 Electrical Connections- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25
5.1 Connecting Protection Ground (PGND) Cables - - - - - - - - - - - - - - - - - - - - - - - - 25
5.2 Connecting AC Output Cables - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27
5.3 Connecting the PV Strings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30
5.4 Connecting Communication Cables - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 34
5.5 Power limit (optional) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 35
5.6 Installation Verification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 38
6 System Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39
6.1 Powering ON the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39
6.2 Powering OFF the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39
7 User Interface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 40
7.1 LED specification definition - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 41
7.2 LCD automatic-page-turning display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 42
7.3 LCD Warning display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 43
8 Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -44
8.1 Routine Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -44
8.2 Inverter Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 45
8.3 Removing the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -47
9 Warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -48
9.1 Quality Terms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -48
9.2 Liability Waiver - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -48
10 Disposal of the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -49
11 Technical Specifications- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -50
User Manual - Contents
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4
Forward
Dear User,
Thank you so much for your choosing 2K-6K, the latest generation of grid-tied PV Strings inverter (hereinafter referred to as the
inverter) designed and developed by the company.
This user manual introduces the inverter in terms of its installation, electrical connections, operation, commissioning,
maintenance, and troubleshooting. Please read through the manual carefully before installing and using the inverter, and keep
the manual well for future reference.
Application Model
Grid-tied PV string inverter
Applicable Personnel
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified electrical technicians.
Notes :
This user manual is subject to change ( specific please in kind prevail ) without prior notice .
2K/3K/3.6K
4K/5K/6K
User Manual - Forward
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Indicates an imminently hazardous situation which, if not correctly followed, will result in
serious injury or death.
Indicates a potentially hazardous situation which, if not correctly followed, could result in
serious injury or death.
Indicates a potentially hazardous situation which, if not correctly followed, could result in
moderate or minor injury.
Indicates a potentially hazardous situation which, if not correctly followed, could result
in equipment failure, or property damage.
Calls attention to important information, best practices and tips: supplement additional
safety instructions for your better use of the PV inverter to reduce the waste of your
resource.
Refer to documentation (Remind operators to refer to the documentation shipped with
the inverter).
Symbol Conventions
Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed as follows:
Symbol Description
WARNING
CAUTION
DANGER
NOTICE
NOTE
REFER
5
User Manual - Forward
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1 Safety Precautions
Before using the product, please read these safety precautions in User Manual carefully.
a. The PV inverter must be installed, electronically connected, operated and maintained through specially trained technician;
b. The qualified technician must be familiar with the safety regulations of electrical system, working process of PV power
generation system, and standards of local power grid;
c. The technician must read through this User Manual carefully and master it before any operation.
1.1 Personnel Safety
a. Do not tamper with any warning signs on the inverter enclosure because these signs contain important information about safe
operation.
b. Do not remove or damage the nameplate on the inverter’s enclosure because it contains important product information.
1.2 PV Inverter Protection
a. Ensure there is no electronical connections around ports of the PV inverter before installation;
b. Adequate ventilation must be provided for inverter installation location. Mount the inverter in vertical direction, and ensure that
no object is put on the heat sink affecting the cooling. (For details, refer to Chapter 4 Installation)
1.3 Installation Safety
As soon as receiving the PV inverter, please check if it is damaged during its transportation. If
yes, please contact your dealer immediately.
Please read the User Manual carefully before installing the PV inverter; warranty or liability will
be exempted from the company if damage is caused by installation faults.
NOTICE
NOTICE
6
User Manual - Safety Precautions
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a. Input terminals of the PV inverter apply only to input terminals of PV String; do not connect any other DC source to the input
terminals.
b. Before connecting PV modules, ensure that is its voltage is within the safe range; when exposed to any sunlight, PV modules
can generate high voltage.
c. All electrical connections must meet the electrical standards of the country or region.
d. Cables used in electrical connections must be well fixed, under good insulation, and with appropriate specification.
1.4 Electrical Connections
a. Before getting the permission of electrical power authority in the country/region, the grid-
tied PV inverter cannot start power generation.
b. Follow the procedures of commissioning described in the user manual when commissioning the PV inverter.
c. Do not touch any other parts'surface except the DC switch when the PV inverter is operating; its partial parts will be extremely
hot and can cause burns.
1.5 Operating and Commissioning
1.6 Maintenance
Before installing the inverter, check all electrical ports to ensure no damage and no short circuit.
Otherwise personal casualty and/or fire will occur.
While the inverter operating, high voltage can lead to an electrical shock hazard, and even
cause personal casualties. Therefore, operate the PV inverter strictly according to the safety
precautions in the user manual.
Power OFF all electrical terminals before the inverter maintenance; strictly comply with the
safety precautions in this document when operating the inverter.
DANGER
DANGER
DANGER
7
When the photovoltaic array is exposed to light, it supplies DC voltage to the PCE.
WARNING
User Manual - Safety Precautions
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a. For personal safety, maintenance personnel must wear appropriate personal protective equipment (like insulation
gloves and protective shoes) for the inverter maintenance.
b. Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.
c. Follow the procedures of maintenance stipulated in the manual strictly.
d. Check the relevant safety and performance of the inverter; rectify any faults that may compromise the inverter security
performance before restarting the inverter.
1.7 Additional Information
To avoid any other unforeseeable risk, contact your dealer immediately, if there is any issue
found during operation.
NOTICE
8
User Manual - Safety Precautions
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2 Overview of the Inverter
This chapter introduces the inverter and describes its functional model, network application, appearance, dimensions, and
working process etc.
2.1.1 Function
This series is a single-phase grid-tied PV string inverter (transformer less) that converts the DC power generated by PV strings into AC
power and feeds the power into power grid.
3K
Power class code
Figure 2.1 Model number descriptions
2.1 Functional Models
The inverter is transformerless. Add an isolation transformer before grounding the positive/
negative terminal of PV modules (like Thin Film module) for operation.
Do not connect PV modules in parallel to several PV inverters for operation.
WARNING
WARNING
9
User Manual - Overview of the Inverter
2.1.2 Model Description
Figure 2.1 shows a model number of the inverter, using 3K as an example.
2.2 Network Application
2.2.1 Grid-tied PV Power Systems
The series applies to grid-tied PV power systems for outdoor power stations. Typically, a grid-tied PV power system consists of PV
modules, grid-tied inverters, AC distribution units, and low-voltage power grid, as shown in Figure 2.2.
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2.3 Outline and Dimensions
2.3.1 Outline
Figures 2.3 to 2.7 show the outline of the inverters as follows:
Figure 2.2 a low-voltage grid-tied PV power system
PV strings Inverter AC Distribution Unit low-voltage power grid
Figure2.4 4K-6K PV Inverter with Dual MPPT Input (unit: mm)
Figure2.3 2K-3.6K PV Inverter with Single MPPT Input (unit: mm)
10
320mm
344mm
137mm
350mm
347mm
137mm
User Manual - Overview of the Inverter
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