Production of fully automatic photovoltaic module tester

1500V photovoltaic power station operation and maintenance equipmentPROFITEST PV 1500

1500V component power and IV curve tester Profiltest PV 1500

The Profitest PV 1500 can measure the IV curve of 1500V photovoltaic modules, as well as strings or arrays. Through the program, the device can directly measure and calculate the peak power Ppk, series resistance Rs, and parallel resistance Rp at the installation position of the photovoltaic system. The calculation results and charts can be displayed on the internal color TFT display screen. Therefore, quality control of photovoltaic systems can be carried out quickly and economically. This simple and meaningful practical inspection serves the customer's requirements and also meets the requirements of the installation program.

In addition, Profitest PV 1500 is also suitable as a tool for research and development purposes.

High precision testing system specifically designed for the photovoltaic industry

Technology in the field of new energy
The sustainable development of ecology, the continuous improvement of energy balance, and the persuasive power of efficiency and economy are making photovoltaic power generation rapidly gain extraordinary significance. Nowadays, photovoltaic power generation is considered as the future energy source.bigMaximizing the use of solar energy and achievingbigThe output requires precision.

This leads to requirements for the measurement techniques used in each stage of the operation processtallThe photovoltaic system that is already in the planning stage, the decisive factors, are accurately determined and incorporated into the concept of the system. During the initial start-up and regular testing period, a report must be prepared that includes the electrical measurement values and system data specified in the standard. The quality and performance of photovoltaic installation can be cited and recorded in photovoltaic system certification for future verification. The assurance of quality is of crucial importance for the service life of the entire system, as owners require reliable and decisive production monitoring to ensure long-term profitability. The PROFITEST PV 1500 solar photovoltaic system tester has been developed to meet these demanding conditions, making precise measurements possible and efficient and convenient. Its design philosophy: high precision - low cost, easy to read test results while others are still inputting data!

satisfyDIN EN62446-VDE0126-23 testing standard

■Adopting capacitive load testing method to ensure high accuracy and fast measurement,bigLimits ensure the reliability of testing

■The protected computational processing program is used to determine the internal series resistance of the component, based only on a typical IV curve from a single measurement

■The protected computational processing program is used to evaluate photovoltaic modules without requiring knowledge of the manufacturer's details

■The measuring instrument is equipped with a load isolation switch (1500V/32ADC) as standard, which is separated from the photovoltaic module to ensure safetycomplete

■Reference components that comply with IEC/EN60904-2 standards and integrate PT1000 temperature sensors

PROFIEST PV 1500: Wiring, Starting, Measuring, Instantly Completed!

On site testing does not require time-consuming input of component information

PROFIEST PV 1500 can provide single or string modulesessenceindeedThe IV curve test
■The protective design enables this innovative device to simultaneously obtain multiple parameters in a single measurement, without the need to input module information such as peak power and internal series resistance
Resistance and internal parallel impedance.
■Quickly generate component quality testing reports and provide improvement suggestions and solutions
■The measurement results (including STC state results) can be directly displayed on site through a high-resolution touchscreen interface, which is convenient and reliable.

This innovative and efficient testing method saves valuable time for technicians during the initial installation and regular testing process. By relying on our testing equipment, customers can keep the system in real-timeJiaContinuous output of state and energy.

Flexible and applicable testing range
The adaptive range of 1500V/20A makes PROFIEST PV a universal measuring instrument in the field of solar energy applications. On the one hand, measuring peak power can be used to determine the conversion efficiency of components; On the other hand, by accurately measuring the IV characteristic curve of the component, the characteristics of the tested component and component string can be accurately determined. Therefore, this instrument is very suitable as a precision measuring instrument for scientific research and development.

Internal series impedance Rs: a single measurement is sufficient to determine
In the past, whether it was crystalline silicon or thin film components, at least two characteristic curves of the components in specific states needed to be obtained in order to determine the internal series impedance of the components, which was time-consuming and laborious.

PROFIEST PV 1500 makes testing simple and fast from now on
■With just one IV characteristic curve, the peak power Ppk, series impedance Rs, and parallel impedance Rp can be automatically calculated
■By using PV Analyzer software, it is possible to compare the test results with the expected results of the system, making it easy to detect issues such as connection failures and wire corrosion and damage, which can reduce energy loss to a low level.

Innovative testing techniques ensure high precision

■Measurable short-circuit current Isc, open circuit voltage Uoc, instantaneous component value, Pmax, internal series impedance Rs, internal parallel impedance Rp
■The parameters that can be displayed (calculated) include: peak power Ppk, internal series resistance Rs, internal parallel impedance Rp, instantaneous Upmax, Ipmax, Pmax, Uoc, Isc, FF, Tmod, Tref, Eeff, IV characteristic curve graph.
■Real time data conversion to numerical values in STC (Standard State)
■bigThe measured voltage can reach 1500V DC, the current is 20A DC, and the power is 20KW

■Power and temperature measurement sampling using Kelvin four line method ensures high accuracy
■Standard irradiance sensor with built-in Pt1000 temperature probe, including assembly connector and 10 meter connecting wire
■Real time irradiance measurement, responding to changes in irradiance within milliseconds
■Internally capable of storing thousands of sets of test data
■Continuous display of temperature and irradiance values
■The separate measurement of the temperature of the irradiance sensor and the temperature on the back of the component ensures the accuracy of the measurement
■A universal reference component interface can facilitate the replacement of reference components from other manufacturers in the market
■Long term automatic measurement can be achieved by connecting to a computer, with adjustable testing intervals
■Standard external power adapter for long-term measurement
■An open interface can enable operations in special applications
■Complete module and customer database enable interactive transmission between devices and PCs

PROFIEST PV 1500 has pioneered the field of universal testing, providing safe and efficient testing methods,
Report editing with a focus on practical applications, data processing capabilities, and outstanding engineering design.

STC Standard Test Status

In order to directly compare different modules and lattices, IEC60904 and DIN EN60904 specify standard test conditions (1000W/m2, 25 ℃, AM1.5）， The IV characteristic curve under these testing conditions is defined by three quantities: MPP, Voc, and Isc.

IU characteristic curve

Capacitive measurement method: high-precision solution

One important feature of PROFIEST PV 1500 is the use of capacitance testing, which enables measurement of various types of components and, more importantly, ensures testing accuracy, ignoring the impact of irradiance changes.

■Compared to traditional testing methods, our instrument adopts a highly stable capacitive load testing method to obtain the IV characteristic curve, providing accuracy
■The traditional testing method typically takes 10-30 seconds for a single measurement, and even within milliseconds, there may be a change in irradiance of nearly 100 W/m2, let alone a few seconds. Therefore, the prolonged testing time in traditional testing methods has led to a sharp decline in testing accuracy.

Track the complete characteristic curve that reduces interference factors

The capacitive load testing method has attracted widespread attention in the academic community before, and today PROFIEST PV 1500 has further developed this technology:

■On the one hand, tracking the IV characteristic curves of photovoltaic modules, module strings, and module arrays should not be too fast to avoid the influence of the capacitive or inductive properties of the modules on the test results,

■On the other hand, slow measurements can have an impact on the results due to the instantaneous changes in irradiance.

The PROFITEST PV 1500 tester using capacitive testing method completes the test within 0.5 seconds, minimizing the impact of variable factors on the test results and ensuring the reliability of the test accuracy.

Match with attachments

A variety of optional accessories are paired with the PROFITEST PV 1500 system, which can adapt to complex testing environments and maximize the advantages of the system. At the same time, a sturdy and durable carrying case is standard for easy transportation.

■suitcase

■External load circuit breaker (1000V/32A), intrinsically safe, all pole disconnect design

■Single crystal reference module (irradiance sensor) that meets IEC/EN 60904-2 standard, integrated Pt1000 temperature sensor, 10m long connecting wire

■External adapter (16VDC, 2.5A) is used to charge the instrument

■Connecting wires between components and instruments, sampling four wire method ensures accuracy attachment

■Pt100 temperature sensor, distinguished from the one on the reference component, specifically designed for testing the temperature on the back of the component

PV Analyzer analysis software

The PV Analyzer software that comes standard with the suitcase can efficiently analyze test results and generate reports. It is a very practical software customized for the photovoltaic industry, with a graphical interface display, test result evaluation, report generation, and powerful database functions.

The PV Analyst functionality includes but is not limited to:
■Read test data and settings on PROFIEST PV 1500
■Export test data (such as XLS format)
■Generate test report
■Online measurement, simultaneous display of graphics and data (also applicable to long-term measurement mode)
■Real time editing and uploading of photovoltaic module database and customer database
■Conversion display of data in STC state
■Same window display of multiple test curves
■Compatible with Windows NT, 2000, XP, Vista, Win7 systems

Product Highlights

■open-circuit voltagetall1500V， short-circuit currentbig20A
■High power capacitive loads result in extremely short testing times of 0.02-2 seconds, ensuring high-precision results
■Built in multiple component information without on-site input, saving time
■Durable plastic casing, waterproof, shockproof, dustproof (IP67)
■Color touchscreen operating system, 32-bit industrial grade PC
■Flash data storage 512MB (sufficient for over 1000 measurements)
■Sampling rate maximum: 100kHz, resolution of 12 bits
■4-wire method measurement avoids systematic errors in voltage measurement

■Color TFT display screen suitable for measurement under sunlight, with LED backlight, resolution of 480 x 272 pixels, high contrast
■Using MS Windows ® Operate and analyze applications, communicate through independent USB
■Voltage supply lithium-ion battery 11.25 v/8.8 ah/99.6 wh (continuous operation for about 8 hours)
■Measurement cycle: 0.02 seconds per measurement (100 sets of measurement values)
■Irradiance reference sensor integrated with PT1000 temperature sensor
■Optional additional backside temperature sensor
■Automatic selection of suitable measurement range for measuring instruments