Capacitance Test System Model 1820

Plastic film capacitors have higher withstand voltage and lower equivalent series resistance than electrolytic capacitors, and their excellent lifetime characteristics make them mainly used in green energy industries such as PV, EV, and wind power generation. When used in circuits, high-frequency high current will cause the temperature of the capacitor to rise and reduce its service life. If the internal circuit and structure do not have good current resistance and heat dissipation design, it may even cause the capacitor to burn out. Therefore, observing the temperature rise characteristics of capacitors under actual working conditions is the most suitable way to evaluate the durability and reliability of plastic film capacitors, and it is also the verification and analysis capability that capacitor manufacturers must have for their products.

Chroma 1820 can provide DC high-voltage and high-frequency AC current superimposed test environment, DC voltage up to 5kV, AC current frequency from 1kHz to 20kHz/10kHz to 200kHz, the maximum output power of up to 1kVA/2kVA, and through the 8-channel temperature recorder to carry out the accurate measurement of multi-point temperature; in addition to the standard test modules available for selection, customized modules are also available for evaluation and design services for the needs of high-current test applications; the control software developed specifically for this system can set the test conditions, measurement data logging and report output, and real-time temperature profile can also be provided. In addition to standard test modules, the company also provides customized module evaluation and design services for high-current test applications. The control software developed specifically for this system allows for the setting of test conditions, the recording of measurement data and the output of reports, as well as the display of real-time temperature curves in response to changes in the temperature rise of the product.

The Chroma 1820 is designed with software functions that not only can conduct long time temperature rise test according to the test conditions set by the user, but also can automatically increase/decrease the AC current and switch the test frequency according to the temperature rise status of the product to evaluate the maximum current withstand value under different application frequencies. The Chroma 1820 is the best platform for analyzing the durability and reliability of capacitive components, whether it is for the evaluation of product characteristics improvement at the R&D end or the quality audit inspection at the incoming material end.