[Measures for Neighbors] Power Quality Measurement *Unusual noise like a "keen"! Please consult us.
Power quality measurement
It is possible to analyze the causes of abnormal sounds from harmonics in the PCS (Power Conditioner) of solar power generation! By measuring the power supply, you can understand the quality!
"Power Quality Measurement" involves conducting on-site measurements and field surveys at distributed power sources, including solar power generation, analyzing measurement values and waveform data, and providing advice aimed at resolving issues. [Advice on Solutions to Unusual Noises from Harmonics] If a "keen" noise is heard from the PCS (Power Conditioning System) of solar power generation, it may be caused by harmonics. However, identifying the factors that cause these harmonics is not easy. Our company has experience addressing such issues through years of measurement technology and testing know-how related to solar power generation. We will assess the current situation through power quality measurement and provide advice for resolution. <Features> - Targets cases where causes cannot be identified through tester measurements or insulation resistance measurements. - Advice on issues such as PCS error stops or malfunctions of leakage circuit breakers. - Guidance on how to respond to PCS error codes. - Solutions for situations where solar power generation is not occurring. For more details, please download the PDF and view the brochure. Feel free to contact us through our company website. (No registration 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 technologies 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 the site and provide advice aimed at estimating the causes of problems based on the measurement results. ■Measurement Items 1. AC Voltage - Instantaneous value, effective value, unbalance, 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 waveforms during abnormal shutdown cases We will conduct on-site measurements and provide advice aimed at estimating the causes of problems based on waveforms and numerical data.
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Applications/Examples of results
■Experience in testing operations for decentralized power sources, including solar power generation ■Investigated the cause of abnormal noises originating from the PCS due to harmonics ■Advised 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.