Self-inspection before use and self-confirmation before use [Harmonic measurement during the installation of solar power generation]
Power quality measurement
We will conduct harmonic measurements as part of the "pre-use self-inspection and pre-use self-confirmation" items required when installing new electrical equipment.
"Measurement of Power Quality" involves conducting on-site measurements and field surveys for distributed power sources, such as solar power generation, to assess harmonics and other factors. We analyze measurement values and waveform data to provide data submissions and advice for resolving issues. If the measured harmonics exceed specified values, we can also offer advice for resolution. As a partner company of the Central Research Institute of Electric Power Industry, we have been engaged in testing operations for distributed power sources, including solar power generation, for many years. We have experience conducting tests under various conditions and confirming and reproducing various phenomena. We also have a track record of performing harmonic measurements for "self-inspection before use and self-confirmation before use" during the installation of solar power systems related to government agencies. <Features> - Advice on issues such as PCS error stops and malfunctions of leakage circuit breakers - Guidance on how to address PCS error codes For more details, please download the PDF and view the brochure. Feel free to contact us through our company website (registration not required).
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basic information
■Overview Our company, as a partner of the Central Research Institute of Electric Power Industry, has accumulated measurement technology and testing know-how for distributed power sources, including solar power generation, over many years. Based on our experience in certification testing for solar power generation, we measure power quality at on-site facilities and provide advice aimed at estimating the causes of issues based on the measurement results. ■Measurement Items 1. AC Voltage - Instantaneous value, effective value, imbalance, harmonics (0 to 50th), total harmonic distortion rate 2. AC Current - Instantaneous value, effective value, balance of each phase, harmonics (0 to 50th), total harmonic distortion rate 3. Active Power (Generation Amount) 4. Reactive Power 5. Power Factor 6. DC Voltage 7. Transient waveform at the time of abnormal shutdown We will conduct on-site measurements and provide advice aimed at estimating the causes of issues based on waveforms and numerical data.
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Applications/Examples of results
■Experience in testing operations for distributed power sources, including solar power generation ■Investigated the cause of abnormal noises originating from the PCS due to harmonics ■Provided advice on solutions for cases where the leakage circuit breaker trips for unknown reasons
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Company information
Electric Power Tech Systems Co., Ltd. is a comprehensive engineering company that supports power technology. Our main business is providing technical support for research, surveys, and testing in these wide-ranging fields conducted by the Central Research Institute of Electric Power Industry, a general incorporated foundation. In addition to the technical expertise cultivated through these businesses, we further develop and customize the technologies we have created to contribute to the electric power industry and society. Please feel free to contact us if you have any inquiries.