1. One of the few in the country to pass the strict type test appraisal by the national authoritative department - the Electric Power Industry Electrical Equipment Quality Inspection and Testing Center (Wuhan High Voltage Research Institute), ensuring reliable quality and the safety of test personnel, test samples, and test equipment itself;



2. In the 2008 national equipment competition organized by Northeast Electric Power Research Institute, all test items were passed in one go, being the only one to meet all national standard requirements including the 60-minute temperature rise, and ranking among the top again in the competition;



* Shanghai Dafan Electric is small in size and light in weight, especially suitable for on-site use;



* Meets national standards* One of the few in the country to pass the strict type test appraisal by the national authoritative department - the Electric Power Industry Electrical Equipment Quality Inspection and Testing Center (Wuhan High Voltage Research Institute), ensuring reliable quality and the safety of test personnel, test samples, and test equipment itself;



* Recognized by numerous professional customers for excellent quality and professional service (such as Guangxi Electric Power Research Institute, Hulunbuir Electric Power Bureau, Qiqihar Electric Power Bureau, China Water Resources and Hydropower Sixteenth Engineering Bureau, China Chemical Group, etc.)



* All major components are imported from world-renowned enterprises, including Texas Instruments and Intel from the United States, Siemens and Schneider from Germany, Toshiba and Fuji from Japan, ensuring stable and reliable performance;



* In the 2008 national equipment competition organized by Northeast Electric Power Research Institute, all test items were passed in one go, being the only one to meet all national standard requirements including the 60-minute temperature rise, and ranking among the top again in the competition;



* Meets national standard requirements: has peak monitoring/√2 function, can monitor test waveforms in real time;



* Comprehensive and reliable protection against overvoltage, overcurrent, discharge, overheating, and zero-start, with an action time of 1 microsecond;



* The product is stable and reliable, with a three-year warranty (ten-year warranty for the main unit) and lifelong maintenance;



* The equipment comes with a built-in micro printer, allowing timely printing and saving of test data;



Requirements: has peak monitoring/√2 function, can monitor test waveforms in real time;



* Comprehensive and reliable protection against overvoltage, overcurrent, discharge, overheating, and zero-start, with an action time of 1 microsecond;



* The equipment comes with a built-in micro printer, allowing timely printing and saving of test data;



* Designed with military-standard vibration and dust resistance, able to withstand long-distance transportation and harsh usage environments;



* One-key mouse-style knob "foolproof" operation, with large-screen LCD display;



* Exclusive software calibration function, convenient for users to calibrate meters, ensuring high voltage value accuracy;



* German Rittal design all-aluminum alloy chassis, can be used both horizontally and vertically, lightweight and beautiful, greatly facilitating on-site use;



* Keep promises, provide professional and timely service, and make the greatest effort to serve customer needs;



* The product is stable and reliable, with a three-year warranty (ten-year warranty for the main unit) and lifelong maintenance;



Parameters



◆ Resonant voltage waveform: sine wave, waveform distortion rate <1.0%



◆ Output frequency: 30~300Hz



◆ Duty cycle: continuous operation for 60 minutes at full power output



◆ Quality factor: 30~80



◆ Input power supply: single-phase 380/220V±10%, 50Hz



◆ Ambient temperature: -10℃~+50℃



◆ Relative humidity: <95%, no condensation