Hot Product Promotion
- The Principle of low-frequency method for measuring the excitation characteristics of current transformersWhat's the principle of low-frequency method for measuring the excitation characteristics of current transformers?Excitation characteristic test is the most commonly used and effective method for detecting the performance of protective current transformers.The composite error of current transformersHot Product Promotion May 10, 2024
- What is the purpose of a GDZC Series Transformer DC resistance tester?The DC resistance test of transformer windings is an essential test item for transformers after handover, overhaul, and change of tap changer. The Regulations stipulate that it is necessary to measure the DC resistance of transformer windings during transformer handover, major repairs, minor repairsHot Product Promotion April 12, 2024
- Safety Regulations for GDVA-405 Automatic CT PT TesterTo use our GDVA-405 safely and efficiently, please follow the following safety regulations for operation:1) All technical index should keep in work condition before testing with Analyzer.2) Please follow associated international standards in a special application.3) Forbid high voltage or high curreHot Product Promotion March 15, 2024
- Specifications for GDQT High Vacuum SF6 Gas Recovery and Refilling Equipment(1) Maximum gas storage pressure: 50bar.(2) Recovery gas pressure: initial pressure ≤ 0.8MPa (20°C), final pressure ≤ 1mbar.(3) Gas storage volume: 340L.(4) Vacuuming speed : ≥ 60m3/h; ultimate vacuum:≤ 0.05Pa.(5) Max running time(single): >96 hours(6) Compressor system: adopts oil-free compressor,Hot Product Promotion January 03, 2024
- How to use our VLF-80KV AC Hipot Tester to test power cables of different voltage levels?Our VLF-80KV AC Hipot Tester is used to test power cables 35KV and below. It consists of two boosters(50kV+30kV), one controller and one standard capacitor.1) When carrying out 10KV cable test, one-phase test is strongly suggested. The voltage shall be 18KV and the frequency shall be 0.1Hz、0.05Hz、0.Hot Product Promotion September 20, 2023
- What's the Variable Frequency Series AC Resonant Test System?The Variable Frequency Series AC Resonant Test System is mainly composed of Variable frequency control power supply, excitation transformer, high voltage reactor, high voltage divider and so on. The Variable Frequency Series AC Resonant Test System uses the principle of series resonance, uses the exHot Product Promotion September 05, 2022
- Transformer Oil Temperature Measurement during Breakdown Voltage Test by GDYJ-502AGDYJ-502A Transformer Oil Breakdown Voltage BDV Tester is used to measure breakdown voltage of transformer oil. It can also measure oil temperature during test. The test standards are IEC60156, IS6792, BS5874, ASTM D1816 and ASTM D877.Temperature Sensor PT100 is installed at the bottom of the test vHot Product Promotion June 22, 2022
- GDVA-405 Automatic CT Analyzer for Current Transformer Characteristic Test IEC60044 IEC61869GDVA-405 Automatic CT PT Analyzer is used to analysis the characteristics of current transformer (CT) and potential transformer(PT).It can carry all the test items for CT PT.Functions and Applications:CT turns ratio detection, ratio error and angle error calibration, polarity test and excitation chaHot Product Promotion May 26, 2022
- What are the main items of power transformer test?The test items for power transformers shall include the following:1. Insulating oil(transformer oil) breakdown voltage test ;2. Measure the DC resistance of the winding together with the bushing;3. Check the voltage ratio of all taps;4. Check the three-phase wiring group of the transformer and the pHot Product Promotion May 26, 2022