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

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

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

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

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

Ⅰ. Analysis of Technical Challenges​Traditional GIS (Gas-Insulated Switchgear) voltage transformers face two core problems in complex grid environments:​Insufficient Insulation System Reliability​SF₆ gas impurities (moisture, decomposition byproducts) cause surface discharges, leading to insulation degradation.Temperature fluctuations (-40°C to +80°C) cause gas density changes, reducing partial discharge inception voltage (PDIV).​Measurement Accuracy Degradation​Temperature drift of core

Ⅰ. Background and Challenges​​Policy-Driven Transformation​SF₆ gas has a Global Warming Potential (GWP) 23,500 times that of CO₂. It faces global restriction policies like the EU’s F-Gas Regulation and China’s Non-CO₂ Greenhouse Gas Control Plan.​Industry Pain Points​Traditional GIS voltage transformers rely on SF₆ insulation, posing gas leakage risks. Their lifecycle carbon footprint exceeds 85% of the equipment’s total emissions.​II. Core Solution​Eco-Friendly Dielectric Repl

Industry Pain Points and Challenges​Gas-insulated switchgear (GIS) voltage transformers (VTs) serve as core monitoring components in modern power grids due to their high reliability. However, their demanding high-voltage insulation structure presents significant challenges that cannot be ignored:​High Initial Investment:​​ The procurement and installation costs of GIS-VT equipment impose substantial pressure on project budgets.​Hidden Cost Black Hole:​​ Dedicated spare parts are expensive with l

1.Challenges:​​Traditional voltage transformers (VTs) within GIS equipment often require high-frequency manual inspections, presenting three core pain points:​Delayed Detection of Potential Failures:​​ The enclosed gas-insulated structure (GIS) makes early fault indicators like internal partial discharge (PD), minor SF6 gas density drops, and abnormal temperature rises difficult to visually detect or find via conventional methods.​Low Response Efficiency:​​ Long manual inspection cycles (weeks/m

Target Challenge:​​ Maintaining reliable operation and preventing unexpected failures of outdoor current transformers (CTs), especially in remote substations with limited technician access, poses significant operational risks and high maintenance costs. Traditional periodic inspections are often infrequent, reactive, and may miss developing faults.​Solution Vision:​​ ​Predictive Maintenance & Real-Time Monitoring via IoT.​​ This solution leverages integrated sensors and wireless connectivity