Hot Product Promotion
- How To Diagnose High-Voltage Circuit Breaker Mechanical And Contact Faults Without Dismantling: A Field GuideIntroductionHigh‑voltage circuit breakers are the last line of defense in modern power grids. When a fault occurs, they must interrupt massive short‑circuit currents within milliseconds—often after sitting idle for months. Failure is not an option, yet industry data shows that more than half of breaHot Product Promotion September 02, 2026
- Solving Field Challenges in DC Withstand Voltage Testing for Photovoltaic And Energy Storage ProjectsIn large-scale ground-mounted photovoltaic power plants and energy storage system projects, the quality of DC withstand voltage and leakage current testing directly affects grid connection nodes, equipment lifespan, and asset safety. However, field conditions often differ significantly from the ideaHot Product Promotion August 25, 2026
- AC Resonance Test System Configuration: Step-by-Step Field GuideTechnicians with experience in high-voltage field commissioning have often encountered this challenging scenario: the team arrives at the work site, the power outage window is limited, and they are preparing to conduct AC withstand voltage tests on XLPE cables and GIS equipment, but the reactive powHot Product Promotion August 19, 2026
- Why Does Contact Resistance Change with Test Duration?Loop resistance testing is the most basic and easily underestimated item in the preventive testing of high-voltage circuit breakers. Many field personnel are accustomed to simply connecting the test clamp, pressing the start button, reading the data, recording it, and calling it a day—this process iHot Product Promotion August 12, 2026
- Buyer Feedback-GDVA-405 Automatic CT PT AnalyzerWe are very pleased to receive good feedback from our customers regarding the use of the GDVA-405 CT PT analyzer! GDVA-405 CT PT Anayzer is designed as per IEC60044-1,IEC60044-2,IEC60044-5,IEC60044-6 and IEC61869. It can measure all kinds of CT and PT. The accuracy is 0.02%(typical),0.1%(Guarantee).Hot Product Promotion November 18, 2024
- Buyer Feedback-ZJA-3KY 3000L/H Double Stages High Vacuum Transformer Oil PurifierWe are very happy to receive good feedback from the customer regarding the use of ZJA-3KY 3000L/H transformer oil purifier.The ZJA series transformer oil purifier is mainly used to filter moisture(water content), impurities, and gases in transformer oil. If the indicator of transformer oil before fiHot Product Promotion November 13, 2024
- Why do we need to use GD-2H SF6 Synthesized Tester to Analysis SF6 Electrical Equipment ?SF6 electrical equipment is the main substation equipment, and its quality directly affects the safe and economic operation of the power system.Due to uncertainties in design, materials, craftsmanship, and maintenance, there may be some internal defects. However, the current experimental methods areHot Product Promotion September 27, 2024
- Why do we need to use Series Resonant AC Hipot Test System to test power cables?If the test voltage of the test sample is high and the capacitance is small, the series resonance test method can generally be used.When W0L=1W0C (C includes CX, C1, C2) in the test circuit, the test circuit produces series resonance, which can generate a high test voltage on the test sample (the teHot Product Promotion September 11, 2024
- Successfully provided testing for a 230KV 1000mm2 50 meters power cable to NGCP in the Philippines through our GDXZ Series Resonant AC Hipot Test SystemRecently, one of our clients successfully provided AC withstand voltage testing for 220KV cables to NGCP in the Philippines using the GDXZ Series Resonant AC Hipot Test System purchased from our company. And received high praise from NGCP in the Philippines.The National Grid Corporation of the PhiliHot Product Promotion August 29, 2024
- What are the ratio and phase angle error of current transformer?The error of current transformers is divided into ratio error and phase angle error:The ratio error is the current value indirectly measured through the secondary circuit (KeI2 minus the percentage of the actual value of the primary current to the actual value of the primary current). That is, the pHot Product Promotion July 26, 2024