Sunways PT 33k User manual

english EN
User Manual
Sunways Solar Inverter
PT 30k, PT 33k
Indoor / Outdoor
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Sunways AG
Photovoltaic Technology
Macairestraße 3 - 5
78467 Konstanz, Germany
Phone: [phone]
Fax: [phone]
EMail: [email protected]
Internet: www.sunways.de
This user manual may only be reprinted or copied in whole or in part with the express, written approval of Sun-
ways AG. Any type of reproduction, distribution or storage on data carriers in any form and of any kind not au-
thorised by Sunways AG represents a violation of the applicable copyright laws and will be prosecuted. We
reserve the right to make technical changes which serve to improve the unit or increase the safety standard, wi-
thout prior notice.
Publisher responsible for the content: Sunways AG
This user manual contains products and product names which are registered trademarks. The mention of pro-
ducts and product names is used only for information purposes and does not represent product misuse. The pas-
sages referring to these products in this user manual do not represent original documentation of the respective
product.
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Introduction
PT 30k to PT 33k 3
Introduction
Thank you for choosing a Sunways Solar Inverter from PT series! You now have
an innovative, high-quality product with unique features and consistently high
efficiency.
This Solar Inverter is equipped with HERIC®topology and innovative PT circuitry
and enables operation on a large number of solar modules – as accustomed
from Sunways – without the use of a transformer.
This user manual contains instructions for using the PT series. It will help you fa-
miliarise yourself with the functionality of the unit. Information is provided on
safety, installation, commissioning, operation and system monitoring.
Please follow the safety instructions carefully to enhance health and safety at
the operating site of the unit.
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Introduction
4PT 30k to PT 33k
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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Integration into solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Module description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Delivery scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 General safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Explanation of symbols and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Basic safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.4 Safety concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 Installing the communication equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.1 Connecting and disconnecting the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2 System monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.3 Sunways Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7.1 Servicing schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7.2 Maintenance interval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7.3 Maintenance tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
A.1 Installation methods and cable cross-sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
A.2 General liability disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
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Product description
PT 30k to PT 33k 7
1 Product description
1.1 Intended use
The Solar Inverter from PT series is the link between your solar generator and
the public power grid. The energy from the connected solar generator is con-
verted to grid-compliant AC current and fed into the grid.
Solar modules which require earthing of the negative or positive terminal can-
not be operated with the Solar Inverter PT 30k to PT 33k. If in doubt, always ask
your module manufacturer about a release!
1.2 Functional description
Conversion from direct to al-
ternating current
The Solar Inverter PT 30k to PT 33k converts the direct current produced by the
solar generator into alternating current. The alternating current is then fed into
the public power grid as a three-phase current.
Operating and display ele-
ments
Various interfaces are available for system configuration and monitoring:
Control panel (LCD display and keyboard) for displaying operating and status
values or for inputting system parameters
Operating LED
Integrated web server for display and configuration via a web browser
Interfaces Bus interface for connecting a Sunways modem, an analog modem, an ISDN
modem or a GSM/GPRS modem
Ethernet interface for connecting a PC or for integration in existing networks
RS485 interface for communication with external data loggers
CAN bus interface for interconnecting several Solar Inverter
S0 pulse output for controlling large displays
Activation of large display in web browser
Alarm relay for realising simple monitoring locally
Interface for connecting an irradiance and temperature sensor
Data logging The Solar Inverter PT 30k to PT 33k offers internal data logging for recording
and saving system data:
5-minute mean values of voltages, currents, output, temperature and irradi-
ance (if sensor is installed)
5-minute, daily, monthly and annual energy yield values
Memory for malfunction messages
Grid monitoring The Solar Inverter PT 30k to PT 33k assumes the task of grid monitoring for the
protection of the unit and persons. In case of abnormal grid conditions, feeding
is immediately interrupted and the inverter disconnects from the grid by trigge-
ring the grid relay.
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Product description
8PT 30k to PT 33k
Design PT 30k to PT 33k The basic configuration is shown in the block diagram.
The solar generator voltage connected to the inverter input is initially adapted
by the DC actuator and then converted to alternating current by the high-effici-
ency HERIC®inverter. The AC connection is made with 5 wires due to the 3-pha-
se feed and passive grid monitoring.
1.3 Integration into solar system
Solar generator configuration The technical data of the selected solar generator must match the PT 30k to PT
33k specification (see Technical Data). Incorrect dimensioning can lead to reduc-
tions in the yield and to destruction of the unit.
The Sundim design program from Sunways can be used for this purpose. Sun-
ways Sundim can be found on the enclosed CD-ROM or on our website at http:/
/www.sunways.eu/de/.
Be sure to take the following points into account before planning your system:
Watch the celestial alignment of the modules. In Central Europe a maximum
yield is achieved with a module tilt of 30to the horizontal and direct south
orientation of the solar generator
field.
The cell output decreases as the module temperature increases. Install your
solar generator with sufficient ventilation at the rear.
Check your solar generator approx. every three years for soiling. This occurs
especially on the lower edge of the modules and forms a haze that cannot
be washed off even by heavy rain. Yield reduction can be prevented by
cleaning the modules with a wet cloth or a brush.
Avoid shading of individual modules or solar cells in your system. This can
lead to major reductions in yield.
Please note the maintenance intervals of the inverter. See servicing schedule
on enclosed product CD.
=
=
=
~
L1
L2
L3
PE
N
L1 L2 L3 PE N
–
+
DC+
DC–
Control and monitoring
DC actuator HERIC®inverter
Solar generator
Network
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