The grounding device characteristic parameter testing system consists of a host GI6450 characteristic parameter tester and a slave FVA620 frequency selective voltage and current meter. The system adopts high-frequency anti-interference technology, which can accurately measure the various power frequency characteristic parameters of the grounding device in a strong interference environment of the substation. Comply with the requirements of DL/T475-2017 "Guidelines for Testing Characteristic Parameters of Grounding Devices". It has the advantages of small size, light weight, and convenient carrying
Function
1 It can measure the grounding impedance, shunt and grid shunt coefficients of grounding devices, surface potential gradient distribution in the field, contact potential difference, step potential difference, soil resistivity and other parameters, and accurately analyze the comprehensive parameters of the grounding grid
2. Measure using a different frequency current, take one frequency point at around 50Hz for testing, and convert it to 50Hz data. Combining digital filtering technology can effectively suppress power frequency interference 3. The tester adopts a high-frequency transformer and an integrated machine design, with small size, light weight, and no separate machine to machine connection 4. The instrument box is equipped with a pull rod and a roller, making it easy to move 5. It can be equipped with an external booster, suitable for measurement in high resistance areas; (Optional)
6. It has two methods of time synchronization (GPS, wireless) and data transmission, suitable for more testing scenarios, and supports automatic selection of both methods 7. Automatically complete voltage control and data measurement, with short measurement time 8. It can save the waveform of test current and test voltage for subsequent analysis 9. The operation interface and test data are displayed on a LCD screen that can be clearly displayed indoors and outdoors 10. Built in large capacity memory, which can save 1000 sets of test data without losing power 11. Equipped with a high-speed thermal printer for printing data
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China