Nippon Kernel System CO., LTD. List of Products and Services

The "Epsilon 1500V" is an IV curve tracer designed for the maintenance of high-voltage solar power generation systems. Building on the features of the PV analyzer "Epsilon 400/1000," it achieves 1500[V] measurement. 【Features】 ■ Short measurement time (approximately 1 second until result display; less affected by sudden changes in sunlight or shadows) ■ Simple operability (measurement possible with one button, no prior settings required) ■ By connecting this device and the measurement unit (CMU12281, available for simultaneous rental) to a PC, synchronization of I-V curves with sunlight and temperature data is possible (using the included software) ■ Uses MC4 connectors for the measurement connection, ensuring reliable and safe measurements ■ Equipped with a voltage tester function, capable of measuring voltages up to 1500[V] continuously *For more details, please check the URL below or feel free to contact us. http://www.kernel-sys.co.jp/product/rental/nks_rental.html

• Other measurement, recording and measuring instruments
• Logic Analyzer

The "PVS01203" is a portable solar cell simulator that uses only low-capacity film capacitors at the output terminal. It generates I-V characteristics based on semiconductor equivalent equations and setting changes can be made during operation. The device is equipped with a color LCD screen, allowing real-time confirmation of the operating point. It has a wide input range for power supply and can connect to a PC via LAN to perform arbitrary I-V curves and scheduled operations. 【Features】 ■ Portable and compact design ■ Equipped with a color LCD screen for real-time confirmation of the operating point ■ Generates IV characteristics based on semiconductor equivalent equations, with the ability to change settings during operation ■ Four parameters (Voc, Isc, F.F., Irra) can be set independently ■ Wide input range for power supply (AC 85–264V) *For more details, please refer to the PDF document or feel free to contact us.

• Power Supplies

The "MEP12281/MEP12282" is a power supply device that simulates the output of solar cells (I-V curve). In addition to simulating solar cells, it can also operate as a fuel cell simulator and provide constant voltage output. The configuration consists of a 300W simulated module that can be connected in series or parallel using patch cords, allowing for I-V curve settings for each module. It faithfully reproduces the electrical equivalent circuit of solar cells, enabling a simulation that is closer to reality compared to traditional methods that simulate the entire array as a whole. Remote operation also allows for scheduled operations, making the simulation even more realistic. 【Features】 ■ Composed of 5 modules, it can be housed in a 3U 19-inch JIS rack. ■ The system can be expanded by adding units and connecting them in series or parallel. ■ Since output can be generated for each module, it is compatible with tests for microinverters and other devices. ■ Output voltage and current are displayed on the main unit's LED for each module. ■ It can be operated independently or remotely by connecting to a PC. *For more details, please refer to the PDF document or feel free to contact us. *Demo units are also available for loan, so please get in touch.

• Power Supplies

The PVP01301 is a simulated power source used to confirm the operation of power conditioners at solar power installation sites and during inspections before delivery. It outputs fixed solar cell simulated characteristics (I-V curve/DC). With a lightweight and compact design that is portable, it offers simple operation. It allows for operation checks of the power conditioner even at night or in bad weather. 【Features】 - Portable compact design - Simple operability (easy operation with lever ON to start output) - Allows for operation checks of the power conditioner even at night or during rain when solar cells do not generate power (please confirm the DC input operating range of the power conditioner in advance due to fixed output) *For more details, please refer to the PDF document or feel free to contact us.

• Power Supplies

The "Epsilon 400" is an IV curve tracer that supports the voltage range of 400V, which is common for many residential solar power generation systems. It has been newly renewed from the old model PVA12280! Compact and lightweight, it features simple operability and beautiful displays on a color LCD. It can store up to 9999 data points in internal memory, and it allows for approximately 1-second result display, enabling short-term measurements that are less affected by sudden changes in sunlight or shadows. 【Features】 ■ Capable of measuring 400[V] and 30[A] ■ Equipped with an automatic measurement function (manual/automatic selection available) ■ Japanese mode added to the operation guide (English also selectable) ■ Safe operation with reverse connection detection function (misuse detection) ■ Internal data storage capacity of 9999 points, suitable for large-scale power plants ■ Reliable and smooth graph display through 1024-point measurements ■ Linear sweep within 200[ms], with results displayed in about 1 second * For more details, please refer to the PDF document or feel free to contact us. * Demo units are also available for loan, so please get in touch.

• Other measurement, recording and measuring instruments
• Logic Analyzer

"I-V Curve AI for Epsilon" is software that enables the judgment of I-V curves (IV curves), which has previously been left to the subjectivity of evaluators, to be performed using machine learning. This allows for consistent judgments regardless of differences in evaluators or their experience. The "PC software (Learning and Judgment)" reads measurement data and updates the learning data. Based on the learning data, it can automatically classify and distinguish I-V curves into multiple types. Additionally, the "Android software (Measurement and Judgment)" connects to the Epsilon device via Wi-Fi for remote measurement. It displays the judgment results along with the measurement results. [Features of the Android Software (Measurement and Judgment)] ■ Measurement - Remote measurement via Wi-Fi connection to the Epsilon device ■ Judgment - Displays judgment results along with measurement results *For more details, please refer to the PDF materials or feel free to contact us.

• Other measurement, recording and measuring instruments
• Software (middle, driver, security, etc.)

Supports most device tests. Implemented tests such as frequency feedback, step injection, and FRT. It is possible to build a system using the measuring instruments and power supplies you already have (additional implementation for device compatibility is required).

• Other operation management software
• Testing Equipment and Devices

It is possible to conduct inspections in accordance with the JPEA/JEMA guidelines. Additionally, it supports original inspections by allowing you to freely select inspection items. On-site, work assistance and measurement data are saved using a tablet PC, while in the office, management software is used to manage customer information, inspection results, and report creation. This software provides total support for PV maintenance from the field to the office, reducing costs and time. ◆ Paperless for a tidy workplace! ◆ On-site work is light and quick! ◆ Report creation time is significantly reduced! ◆ Managing inspection data is easy!

• Other operation management software
• Other production management systems

This is a single-phase three-wire alternating current load device that supports various tests as LC loads and R loads. It is also possible to configure test equipment linked with other measuring instruments and power supplies through computer control. By using our developed products such as the grid connection test software (sold separately) and the power conditioner evaluation system (PVU01403), automatic grid connection testing for solar power system power conditioners can be conducted.

• Solar power generator

We have adopted an electronic load method to achieve high-performance I-V curve measurement. Based on customer requirements, we will configure a solar cell evaluation system centered around this device. We can also propose systems such as measurement systems in open state and grid-connected measurement systems using power conditioners. Of course, it can also be used for maintenance purposes. ◆ Variable sweep direction: short circuit → open circuit, open circuit → short circuit, etc. ◆ Variable sweep time: 150[ms] to 1000[ms] ◆ I-V curves can be checked on-site using a high-resolution color monitor ◆ Measurement of special solar cells (CPV) from a single unit is possible ◆ Clear graph display through 1024-point measurement * For more details, please download the PDF or feel free to contact us. * Demo units are also available for loan, so please get in touch.

• Testing Equipment and Devices
• Other inspection equipment and devices

The "Epsilon 1500" is an I-V curve tracer that supports a voltage range of 1500V, suitable for large industrial solar power generation systems. It is an I-V curve tracer for solar cell strings compatible with 1500V/30A. The functions have been significantly renewed from conventional models. It can store up to 9999 data points in internal memory, displays results in about 1 second, and allows for short-term measurements that are less affected by sudden changes in sunlight or shading. 【Features】 - Capable of measuring 1500[V] and 30[A] (can also measure ultra-high output modules such as parallel strings and bifacial modules) - Added a Japanese mode to the operation guide (English is also selectable) - Equipped with reverse connection detection for safe operation (misuse detection) - Uses MC4 connectors for measurement connections, ensuring reliable and safe measurements - Has a voltage tester function, allowing for continuous voltage measurement up to 1500[V] - Internal data storage capacity of 9999 points, suitable for large-scale power plants.

• Logic Analyzer
• Other electronic measuring instruments

To evaluate the power generation performance of solar cells, it is necessary to actually put the solar cells in a generating state. Without connecting a load, no current will flow, and thus power generation performance cannot be measured. This device consumes the output power by converting it into heat internally when the solar cells are connected. By simply establishing a minimal measurement environment, it is possible to measure the power generation of the solar cells (the device measures voltage, current, and power every second). For tracking the maximum power point, a unique MPPT tracking method is employed, which, in addition to the conventional sequential power comparison (hill climbing method), sweeps the I-V curve output characteristics of the solar cells once per minute to explore the maximum operating point, thereby performing MPPT control. As a result, even when the maximum operating point (Pmax) changes significantly due to sudden weather changes or shading, it continues to track the maximum operating point. Additionally, when combined with a PV analyzer (I-V curve tracer), it is possible to construct a simulated system under load for outdoor exposure tests. This device is used for applications such as confirming domestic power generation amounts for new types of solar cells (perovskite type), vehicle-mounted solar cells, and OEM products.

• Testing Equipment and Devices

The "Epsilon 1500V" is an I-V curve tracer designed for the maintenance of high-voltage solar power generation systems. Building on the features of the PV Analyzer "Epsilon 400/1000," it achieves 1500[V] measurement. 【Features】 ■ Short measurement time (approximately 1 second until result display; less affected by sudden changes in sunlight or shadows) ■ Simple operability (no prior settings required; measurement can be done with one button) ■ By connecting this device and the measurement unit (CMU12281, sold separately) to a PC simultaneously, synchronization of I-V curves with solar radiation and temperature data is possible (using the included software) ■ Uses MC4 connectors for measurement connections, ensuring reliable and safe measurements ■ Equipped with a voltage tester function, capable of measuring voltages up to 1500[V] at all times *For more details, please download the PDF or feel free to contact us.

• Logic Analyzer
• Other electronic measuring instruments

The "Multi-Output Constant Current Power Supply" operates as a current source, unlike a typical voltage source, allowing it to continuously output a constant current value and waveform even when the impedance of the device under test changes. By connecting multiple units in parallel, it can accommodate various requirements such as high capacity and large currents by using an external step-down transformer. It is also possible to create test benches for circuit breakers and other devices. It is suitable for tests and verifications that require reference current waveforms, such as circuit breaker energization tests, CT accuracy tests, and current inputs for power meters. With three output terminals and phase control for each output, it can provide single-phase or three-phase output with a single unit. Additionally, it has the capability to superimpose harmonics up to the 20th order for each output, allowing for distortion control. 【Features】 - Operates as a constant current source even in short-circuit conditions, enabling large current tests with minimal power supply during virtual load testing. - Capable of superimposing harmonics up to the 20th order. - Outputs low distortion current waveforms with a total harmonic distortion of 0.5% or less (at rated output). - Complies with JIS standard tests with a single unit. - Supports 200% energization tests on circuit breaker production lines. - Response time (time to reach set value) is less than 200 ms. *For more details, please feel free to contact us.

• power supply
• Power Supplies
• Circuit breakers and switches

This device is a regenerative bidirectional DC power supply that has "battery mode" and "solar cell mode." (Successor to BTU-1601) It has an output capacity of ±2.5kW and allows for the selection of two output ranges, 450V-12A and 150V-36A, by switching internal modules. Additionally, the output is insulated, enabling high voltage and high current configurations through series and parallel connections of multiple units. A PC software for control, measurement, and scheduling operations is included as standard, and it is also possible to operate the device locally. Features: ● Simulates solar cells (PV) and batteries with a single unit ● Achieves a wide operating range through internal switching ● Insulated output, expandable by connecting multiple units in series or parallel ● Equipped with equivalent functions to our PV simulation power supply (PVU01403) (PV simulation) ● Acts as a regenerative load during charging operations, effectively utilizing power ● Can reproduce realistic battery characteristics with simple settings ● Simulates SOC changes due to charge and discharge operations and output characteristic changes according to SOC ● Allows accelerated testing that simulates actual batteries ● Selectable C.C./C.V. control for flexible charge and discharge scheduling ● Internal resistance value can be set to 0[Ω]

• Switching Power Supply
• Power storage device

This product can inspect the presence of open/short circuit failures in the bypass diodes within solar cell modules. Since measurements can be taken at the PV string level, such as in junction boxes, inspections can be conducted efficiently and safely without having to climb onto the roof. 【Commitment to Safety】 Measurements taken during the day can potentially damage solar cells, so our company has designed the product with safety in mind, allowing for short, high-speed measurements limited to low sunlight hours in the morning and evening, or at night. ■ High-speed measurement (approximately 1 second from measurement start to result display) ■ Capable of measuring and determining faults from a single module to the string level (supports strings up to 1000[V] / no voltage limit for nighttime measurements) ■ Two inspection modes: morning/evening mode and night mode for safe and reliable inspections ■ 0.1[A] voltage measurement selectable (breeder measurement) → confirmation of cluster faults ■ Bulk measurement mode for voltage, BPD, and clusters available ■ Equipped with tester function (voltage measurement) ■ Voltage logging function allows for measurement of ground-to-ground voltage → confirmation of safety * For details, please download the catalog or feel free to contact us. * Demo units are also available for loan, so please get in touch.

• Other inspection equipment and devices
• Solar power generator

The PV analyzer "Epsilon 400/1000," which is optimal for measuring I-V curves, is a product focused on ease of use with simple operation, Wi-Fi communication, and a color LCD. With a lineup of 400V and 1000V/1500V (introduced in a separate catalog), it can be widely used for the maintenance of solar cells, from general household use to mega-solar installations. Additionally, it is equipped with accident prevention features, making it a safe measuring instrument that can be confidently used even by construction technicians performing measurements for the first time. *Both "Epsilon 400 and 1000" have been updated to a new model, and individual product details are available, so please refer to those. *The "Epsilon 1500" is also available as a separate product, so please refer to that. *For more details, please download the PDF or feel free to contact us. *Demo units are also available for loan, so please get in touch.

• Other inspection equipment and devices

The PV Power Unit is a solar cell simulation power supply device used for evaluation tests of solar power inverters. This unit can output 2.4[kW] and generates a fixed DC output based on the simulated characteristics of solar cells (I-V curve simulation). The voltage and current output values can be changed during output, and by connecting to computer software, it is possible to monitor the operating point of the power inverter. By communicating with measuring instruments such as power meters, it becomes possible to observe the input and output of the power inverter, and data can be saved every second using the computer software, making it an optimal system for long-term tests and scheduling tests. 【Features】 ●Used for evaluation tests of solar power inverters ● A solar cell simulation power supply capable of 2.4[kW] output ● Generates a fixed DC output based on the simulated characteristics of solar cells ● Voltage and current output values can be changed during output ● Data can be saved every second using computer software *For more details, please contact us or download the catalog. *Demo units are also available for loan, so please get in touch.

• Testing Equipment and Devices
• Other inspection equipment and devices