Goodwe Grid-Tie HT Series, Руководство пользователя, Страница: 4 / 19

[1] DC connector*: 20 pairs for 100kw, 24 pairs for 120kw&136kw.
[2] Text materials*: Includes business licenses, certification documents, etc.
Communication
module
3.2 Packaging information
Back hanger
Positive DC
connector [1]
Negative DC
connector [1]
Communication
terminal Inverter
Handle Text materials [2] Expansion screw
3 Product Introduction
3.1 Product Naming Rules
The models involved are as follows:
GW100K-HT
GW110K-HT
GW120K-HT
GW136K-HTH
Model Description (taking GW100K-HT as an example):
1. GW - abbreviation for company name
2. 100K - rated output power
3. HT - model code
3.2 Product Purpose
The HT series is a three-phase transformerless PV string grid-tie inverter, which is the key unit of
the photovoltaic system for connecting the PV string to the grid. The inverter converts the DC
power generated by the photovoltaic module into AC power that meets the parameters of the
local power grid and feeds it into the power grid. The intended use of the inverter is shown in the
diagram below:
kW .H
A B C D
Item
A
B
C
D
Type
PV string
Inverter
Metering equipment
Utility grid
Notes
Monocrystalline silicon, polycrystalline silicon,
thin film PV modules without grounding
HT series
Electric meter cabinet and distributed power generation system
Different models of TN-S, TN-C, TN-C-S, TT, IT are
applicable to the following grid structures
If an isolation transformer is not used on the output side of the inverter to connect to
the power grid, neither the PV+ nor the PV- input terminal of the inverter can be
connected to the ground.
Note: For the TT grid structure, the effective value of the voltage between the neutral wire and
the ground wire must be less than 20V.
Supported grid structure:
The grid structures supported by HT series 100K/110K/120K are TN-S, TN-C, TN-C-S, TT, IT, as
shown in the figure below:
Transformer Transformer Transformer Transformer Transformer
Inverter Inverter Inverter Inverter Inverter
L1
L2
L3
PEN
PE
TN-C
L1
L2
L3
N
PE
PE
TN-C-S
L1
L2
L3
N
PE
TT
L1
L2
L3
N
PE
PE
TN-S
PE
L1
L2
L3
IT
The grid structures supported by HT series 136K are TN-S, TN-C, TN-C-S, TT, IT, as shown in the
diagram below:
Transformer Transformer Transformer Transformer Transformer
Inverter Inverter Inverter Inverter Inverter
L1
L2
L3
PEN
PE
TN-C
L1
L2
L3
N
PE
PE
TN-C-S
L1
L2
L3
N
PE
TT
L1
L2
L3
N
PE
PE
TN-S
PE
L1
L2
L3
IT
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