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Содержание CR-PVS1

Страница 1: ...CR PVS1 PV Soiling Loss Index RTU Revision 04 2020 Copyright 2017 2020 Campbell Scientific CSL I D 1205 Product Manual ...

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Страница 3: ...s under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repairs can be given on request It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment in support of this policy a Declaration of Hazardous Material and De...

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Страница 5: ...s digital cell phones and aerials may also not be applicable according to your locality Some brackets shields and enclosure options including wiring are not sold as standard items in the European market in some cases alternatives are offered Details of the alternatives will be covered in separate manuals Part numbers prefixed with a symbol are special order parts for use with non EU variants or fo...

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Страница 7: ...e beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers Use only manufacturer recommended parts materials and tools Utility and Electrical You can be kil...

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Страница 9: ...5 6 Compliance 5 5 7 Physical 5 6 Installation 5 7 Operation 6 7 1 Measurement 6 7 2 Soiling Loss Index Details 9 8 Maintenance 10 8 1 Offset Correction 10 Appendices A Glossary of Variable Names A 1 B Modbus Register Map B 1 Figures 4 1 Example applications 3 7 1 Effective Irradiance as calculated from short circuit current of the PV modules on a clear sky day 7 7 2 Effective Irradiance and SLI o...

Страница 10: ...in SLI after a cleaning event Both modules were cleaned at a time corresponding to the record number 650 9 Tables 6 1 Solar Panel Wire Colour Function and CR PVS1 Connections 5 6 2 110PV Wire Colour Function and CR PVS1 Connections 6 ...

Страница 11: ... UNDERSTAND the Safety section at the front of this manual DANGER Fire explosion and severe burn hazard Misuse or improper installation of the internal lithium battery can cause severe injury Do not recharge disassemble heat above 100 C 212 F solder directly to the cell incinerate or expose contents to water Dispose of spent lithium batteries properly WARNING Protect from overvoltage Protect from ...

Страница 12: ...mbers on utility scale solar projects using proven methods Numerous studies and documents have been published over several decades outlining and testing various methods in order to calculate losses due to soiling along with their advantages and disadvantages These studies show that the short circuit current of a solar module is directly proportional to the light intensity and can be used as a reli...

Страница 13: ...ent Factory recalibration is recommended every three years Soiling Loss Index can detect 1 Maximum Open Circuit Voltage 100 V Maximum Current 20 A Measurement Accuracy 2 µV 5 1 Back of Panel Temperature Measurements Measurement Range 40 to 135 C Temperature Uncertainty Temperature Tolerance 40 to 70 C 0 2 C 71 to 105 C 0 5 C 106 to 135 C 1 C Steinhart Hart Linearization Equation Error 0 0024 C max...

Страница 14: ...DNP3 Custom user definable over serial USB USB micro B device only 2 0 full speed 12 Mbps for computer connection RS 232 Female RS 232 9 pin interface 5 4 System Clock Accuracy 1 min per month Clock Resolution 1 ms Program Execution Rate 30 s 5 5 Power Requirements Charger Input CHG 16 to 32 VDC current limited at 0 9 A Power converter or solar panel input External Batteries BAT 12 VDC lead acid 7...

Страница 15: ...and other installation and configuration information Device Configuration Utility software is required This can be installed from the USB sent with the CR PVS1 It is also available for download at www campbellsci eu devconfig Download the Quick Deploy Guide at www campbellsci eu cr pvs1 To prevent injury completely cover the PV panels to limit output and current and voltage during installation Do ...

Страница 16: ...ature the effective irradiance of each panel is calculated in accordance with IEC 60904 and the SLI is calculated according to equation 7 2 A daily average SLI is calculated available for SCADA supervisory control and data acquisition and stored in onboard memory For immediate feedback a real time index and quality factor are available Raw measured data are stored and available for analysis or ind...

Страница 17: ...eaned at record number 650 The soiling index after cleaning is 0 003 0 16 on clear sky and 0 000 0 16 on the variable sky conditions This is an indication of the lowest level of soling loss that can be detected FIGURE 7 1 Effective Irradiance as calculated from short circuit current of the PV modules on a clear sky day FIGURE 7 2 Effective Irradiance and SLI on a cloudy day ...

Страница 18: ...oiling Loss Index RTU 8 FIGURE 7 3 Effective Irradiance and SLI during 1 hour of solar noon and Geffref 800 W m22 FIGURE 7 4 Geff and SLI taken during a cloudy day with Geffref 800 w m2 during 1 hour of solar noon ...

Страница 19: ...he loss in transmission properties of the glass as a result of soiling The irradiance is calculated from short circuit current as 𝐺𝐺𝑒𝑒𝑒𝑒𝑒𝑒 𝐼𝐼𝑆𝑆𝑆𝑆 1 𝛼𝛼 𝑇𝑇 𝑇𝑇0 𝐼𝐼𝑆𝑆𝑆𝑆 𝑆𝑆𝑆𝑆𝑆𝑆 7 1 Where Geff effective irradiance reaching the solar cells ISC measured short circuit current of the panel ISC STC short circuit current at standard test conditions STC T back of panel temperature T0 back of panel temperature ...

Страница 20: ... This offset in power output can be determined upon installation and updated after each cleaning The procedure determines the offset and then implements a correction factor into the measurement sequence to remove any effects that may be caused by the offset Carefully clean both panels before initiating this process Cleaning should be completed before 11 a m 1 Connect to the CR PVS1 using Device Co...

Страница 21: ...test panel Amps IscRef Short circuit current of reference panel Amps TempTest Back of panel temperature of test panel C TempRef Back of panel temperature of reference panel C GeffTest Effective irradiance of test panel W m2 GeffRef Effective irradiance of reference panel W m2 Offset_Geff Measured offset between reference and test panels Stable_Data_Count Incrementally counts when conditions are ap...

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Страница 23: ...2 1 10 ModbusData 12 Update_Offset Update Offset 40023 40024 0 1 ModbusData 13 UTC_Offset_UserEntered UTC Offset of the site User Entered 40025 40026 12 12 hrs ModbusData 14 Latitude_UserEntered Latitude of the site User Entered 40027 40028 degrees ModbusData 15 Longitude_UserEntered Longitude of the site User Entered 40029 40030 degrees ModbusData 16 TempCoeffIscTest_UserEntered Temperature Coeff...

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Страница 26: ...info campbellsci fr www campbellsci fr Germany Location Phone Email Website Bremen Germany 49 0 421 460974 0 info campbellsci de www campbellsci de India Location Phone Email Website New Delhi DL India 91 11 46500481 482 info campbellsci in www campbellsci in South Africa Location Phone Email Website Stellenbosch South Africa 27 21 8809960 sales campbellsci co za www campbellsci co za Spain Locati...

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