Challenge: Space Constraints of Traditional GIS Voltage Transformers​In urban core areas, underground substations, or high-density power distribution networks, substation space resources are extremely scarce. Traditional GIS Voltage Transformers (VTs), due to their standalone structure, suffer from large physical size (footprint area typically exceeding 4 m² for 400kV equipment), dispersed components, and complex gas compartment connection points. This not only leads to lengthy installation

Core Challenge: New Energy Grid Integration Intensifies Grid Dynamics, Traditional VT Performance Reaches Critical Limits​The integration of large-scale volatile power sources (e.g., wind and solar) imposes unprecedented demands on the sensitivity, speed, and reliability of grid protection systems. Traditional GIS Voltage Transformers (VTs) exhibit critical limitations:• ​Response Lag: Limited by fixed sampling rates (typically ≤1kHz) and linear processing logic, they struggle to capture

Application Scenario:​​ Extreme cold regions (-40°C environment), environmentally stringent projects (e.g., Nordic wind power grid connection stations)​Core Goal:​​ Enhance long-term reliability of Current Transformers (CTs) within Gas-Insulated Switchgear (GIS) while meeting low-carbon environmental requirements.​I. Insulation Medium Optimization: SF₆/N₂ Hybrid Gas Technology​​Parameter - Solution Design​​Gas Ratio:​​ SF₆ (80%) + N₂ (20%) mixture​Insulation Strength:​​ At 20°C & 0.5

Background:​​ In DC transmission converter stations, large-scale electric arc furnaces, and other environments with severe harmonic pollution and high transient conditions, traditional electromagnetic current transformers (CTs) within Gas-Insulated Switchgear (GIS) face significant challenges: limited frequency bandwidth causes distortion of high-frequency and transient signals; measurement accuracy falls short for harmonic analysis and protection requirements; and external merging units (MUs) i

Core Problem:​​ In seismic-prone regions and aging GIS substations, the mechanical structures (e.g., fasteners, insulation supports) of Current Transformers (CTs) are susceptible to damage from continuous vibration or sudden impacts. This can lead to hidden faults like loosening, detachment, or displacement, ultimately causing insulation degradation or sudden CT failure, threatening grid reliability. Traditional outage-based inspection methods are inefficient and costly.​Innovative Solution:​​ I

​​​Subject: Ultra-Low Temperature Self-Heating CT Solution​In harsh extreme cold environments (e.g., Siberian oil/gas fields, Antarctic research stations), conventional GIS current transformers (CTs) face critical failures such as material embrittlement, drastic accuracy loss, and sealing failure. This solution is specifically engineered for operations below -60°C, integrating advanced material science, precision temperature control technology, and aerospace-grade sealing processes to ensure

Background​During urban power grid upgrades, limited land resources present a core challenge. Traditional GIS equipment occupies significant vertical space due to the separate structures of current transformers (CTs) and grounding switches, becoming a bottleneck in substation miniaturization design.​Solution: Modular Integrated Design​This solution innovatively deeply integrates CT functionality into the grounding switch operating mechanism, achieving spatial reuse and performance breakthroughs:

Plug-and-Play CT Module Rapid Replacement Solution: Revolutionizing Efficient Maintenance for GIS Current Transformers​In high-reliability power scenarios like nuclear power plants and data centers, every minute of equipment downtime can mean significant economic losses or safety hazards. When traditional GIS current transformers (CTs) fail, the entire gas compartment must be depressurized and isolated for replacement, a process taking several days. This solution utilizes an innovative plug-and-

Specialized Voltage Transformer Solution for High-Speed Railway AT Power Supply System: Focused on Strong EMI Immunity​The electromagnetic environment of the high-speed railway AT (Auto-Transformer) power supply system is extremely complex. Strong electromagnetic interference (EMI) directly affects the measurement accuracy of voltage transformers and system reliability. This solution specifically targets this core challenge by developing a dedicated voltage transformer that meets the 27.5kV sing

Ⅰ. ​Technical Focus: Traceability to Metrological Standards​This solution centers on the national electric energy metrology reference system, employing an independently controlled traceability chain to ensure voltage measurement results are directly traceable to the International System of Units (SI). By eliminating cascading errors inherent in traditional measurement devices, it delivers reference-grade voltage measurement capabilities for advanced laboratories.​Ⅱ. Core Technical Innovations​Du