
Plug-and-Play CT Module Rapid Replacement Solution: Revolutionizing Efficient Maintenance for GIS Current Transformers
Sa mga high-reliability power scenarios sama sa nuclear power plants ug data centers, kada minuto nga downtime sa equipment mahimong mag-resulta og significant economic losses o safety hazards. Kapag ang traditional GIS current transformers (CTs) mubangon, ang tanang gas compartment kinahanglan i-depressurize ug i-isolate para sa replacement, proseso na naghuhuman sa pipila ka adlaw. Kini nga solusyon nagamit og innovative plug-and-play CT module design aron makamit ang 90% reduction in maintenance time, nag-address sa core operational challenge sa GIS system maintenance.
Key Technical Highlights
- Ultra-Fast Installation/Removal - Quick-Release Metal-Sealed Bellows Interface
- Modular CT gas chamber interface enables physical isolation; removal does not require depressurization of the main GIS gas compartment.
- Metal-sealed bellows structure ensures permanent elasticity and insulation performance within a range of -40°C to 105°C.
- Dedicated hydraulic separation tools enable damage-free separation of gas-tight surfaces; full removal/installation process takes <120 minutes (vs. ~72h for traditional solutions).
- Plug-and-Play Operation - Calibration-Free EEPROM Technology
- Industrial-grade AT24C512 chips embedded in CT secondary windings pre-store calibration parameters (linearity compensation ±0.1%, phase compensation angle <2 arcminutes).
- Automatic matching with GIS measurement/control units upon connection, eliminating traditional current ratio/phase error verification steps.
- Supports 30,000 read/write cycles with a >25-year data retention period.
- Field Verification - Portable Calibration System
- Handheld injection tester outputs 0.5~5000A adjustable current (Class 0.05 accuracy), meeting IEC 61869-2 testing requirements.
- Automatic comparison of operational parameters against EEPROM reference values; accuracy verification completed in <30 minutes.
- Bluetooth transmission of reports to operation & maintenance (O&M) platforms for generation of digital maintenance records (ISO 55001 compliant).
Application Scenario Value
Scenario
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Traditional Solution Pain Point
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Value of This Solution
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Nuclear Power Plant
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Shutdown/refueling outage losses > $2 million/day
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Saves > $1.8 million per maintenance event
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Data Center
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Power outage causing IDC service level agreement (SLA) breaches
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Enables Tier IV continuous power supply
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Urban Power Grid
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Load transfer increases systemic risk
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Avoids chain-fault risks in 500kV power grids
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Core Advantages
- 90% Faster Fault Recovery: Reduced from an average of 72 hours to under 7 hours (including testing).
- Zero Planned Outages: GIS main body remains energized during operation, eliminating load loss.
- 60% Lower O&M Costs: Reduced need for lifting equipment/specialized personnel.
- Traceable Maintenance: Generates digital calibration reports for every maintenance action (ISO 55001 compliant).
Case Study: At a nuclear power base implementing this solution, the GIS average annual fault downtime dropped from 87 hours to 0.8 hours.