wall bushings serve as critical electrical components, facilitating connections between high-voltage cables and equipment such as transformers and circuit breakers. The structure generally consists of an inner cylinder, outer cylinder, insulating sleeve, support ring, and support bucket. Key advantages include superior strength, high resistance to breakdown, protection against pollution flashover, and excellent corrosion resistance.
The TG2A-40.5-(395) 40.5KV Epoxy Resin Electrical Cabinet wall bushing High Voltage is a high-performance electrical component designed for medium and high-voltage switchgear systems. Its durable epoxy resin construction ensures exceptional electrical insulation, mechanical robustness, and long-term operational stability.
This guide provides detailed information on energy efficiency, maintenance practices, applicable environments, and testing standards to optimize the performance, reliability, and safety of the bushing in industrial and utility applications.
Rated Voltage: 40.5KV, suitable for high-voltage power distribution systems.
Material: Epoxy resin with high dielectric strength and mechanical stability.
Design: Wall bushing for electrical cabinets and switchgear.
Current Rating: Designed for continuous high-voltage operation.
Dimensions: 395 mm diameter, compatible with standard electrical cabinets.
Operating Temperature Range: -40°C to +120°C.
Dielectric Withstand Voltage: 95 kV/1 min.
| Feature | Specification | Benefit |
|---|---|---|
| Electrical Insulation | High dielectric epoxy resin | Prevents electrical leakage and short circuits |
| Mechanical Strength | Reinforced epoxy structure | Withstands vibration, impact, and thermal expansion |
| Thermal Stability | High heat resistance | Maintains performance in high-load conditions |
| Energy Efficiency | Low dielectric loss | Reduces energy waste in high-voltage systems |
| Environmental Compliance | RoHS-certified | Eco-friendly, reduces hazardous materials |
| Long Lifespan | Durable construction | Minimizes replacement frequency and maintenance costs |
| Safety | Rated for 40.5KV | Ensures personnel and equipment protection |
The TG2A-40.5-(395) bushing provides energy-saving benefits by minimizing dielectric losses during high-voltage operations. Its low-loss epoxy resin material ensures that electrical energy is efficiently transmitted with minimal heat generation, contributing to lower operational costs.
Reduces system energy losses due to superior dielectric properties.
Improves overall efficiency of switchgear and cabinet systems.
Supports sustainable energy practices by minimizing wasted electricity.
Compatible with renewable energy installations requiring high-voltage efficiency.
| Aspect | Specification | Impact |
|---|---|---|
| Dielectric Loss | ≤ 0.1% at rated voltage | Reduces heat generation |
| Material Efficiency | High-quality epoxy resin | Extends operational life |
| System Compatibility | Medium and high-voltage switchgear | Enhances overall energy efficiency |
| Maintenance Frequency | Low | Reduces energy and resource consumption over time |
Proper maintenance ensures long-term reliability and safety of the bushing.
Monthly Visual Inspection: Check for cracks, surface contamination, or discoloration.
Quarterly Electrical Testing: Measure insulation resistance using a megohmmeter.
Semi-Annual Thermal Monitoring: Infrared thermography to detect hotspots.
Clean dust and debris using soft brushes or compressed air.
Tighten all bolts and connectors to specified torque levels.
Inspect for partial discharges using high-voltage detection instruments.
Avoid exceeding the rated voltage and current during operation.
| Task | Frequency | Method |
|---|---|---|
| Visual Inspection | Monthly | Check epoxy surface for cracks or contamination |
| Insulation Resistance Test | Quarterly | Megohmmeter measurement |
| Thermal Imaging | Semi-Annual | Detect overheating or abnormal hot spots |
| Mechanical Tightening | Quarterly | Torque bolts and connectors |
| Cleaning | As needed | Soft brush or compressed air |
| Replacement | As required | Follow manufacturer guidelines |
Overheating: Caused by excessive current or poor ventilation. Solution: Improve cooling or reduce load.
Partial Discharge: Due to moisture or contamination. Solution: Clean or replace the bushing.
Mechanical Damage: From mishandling. Solution: Replace damaged units.
Loose Connections: Incorrect torque application. Solution: Retighten connectors.
The TG2A-40.5-(395) bushing is suitable for various industrial and utility applications:
Power Generation Plants: Ensures safe and efficient feed-through in high-voltage cabinets.
Substations: Provides reliable insulation for 40.5KV distribution systems.
Manufacturing Facilities: Supports heavy-duty electrical equipment.
Renewable Energy Systems: Compatible with wind turbines and solar high-voltage installations.
Designed for indoor and outdoor electrical cabinets.
Resistant to temperature fluctuations, humidity, and UV exposure.
RoHS-compliant and eco-friendly, minimizing hazardous waste.
Compliance with industry testing standards ensures reliable performance and safety:
Insulation Resistance Test: Must meet minimum resistance of 1000 MΩ at rated voltage.
Dielectric Withstand Test: 95 kV/1 min to prevent breakdown.
Partial Discharge Test: ≤ 10 pC under rated voltage conditions.
Vibration Test: Withstands mechanical stress from transport and installation.
Impact Test: Durable epoxy resin body prevents cracking.
Thermal Cycling Test: Maintains integrity under temperature fluctuations.
Detailed certificates of compliance provided with each bushing.
Includes technical manuals, installation guides, and maintenance schedules.
Verify physical condition of bushing and accessories.
Confirm dimensions match cabinet specifications.
Ensure installation environment is clean and free of debris.
Align bushing with cabinet wall opening.
Install mounting flange and tighten bolts according to torque specifications.
Connect conductor terminals securely.
Install sealing gaskets to prevent moisture ingress.
Conduct dielectric and insulation testing before energizing.
| Issue | Cause | Solution |
|---|---|---|
| Misalignment | Improper placement | Adjust alignment carefully |
| Loose Connections | Incorrect torque | Retighten bolts/connectors |
| Surface Contamination | Dust or moisture | Clean with appropriate methods |
| Partial Discharge Detected | Manufacturing defect or installation issue | Inspect and replace if necessary |
Reliable High-Voltage Insulation: Reduces electrical faults.
Energy Efficient: Minimizes dielectric losses, saving operational energy.
Durable Epoxy Construction: Withstands mechanical stress and environmental factors.
Comprehensive Testing Compliance: Ensures safety and reliability.
Low Maintenance Requirements: Reduces downtime and operational costs.
Eco-Friendly: RoHS compliant, reduces environmental impact.
The TG2A-40.5-(395) 40.5KV Epoxy Resin Electrical Cabinet Wall Bushing High Voltage is a high-performance, reliable solution for high-voltage switchgear and cabinet systems.
By adhering to recommended installation procedures, maintenance schedules, and testing standards, operators can achieve safe, efficient, and long-lasting performance. Its robust epoxy resin construction, energy-saving properties, and wide applicability make it an ideal choice for industrial, utility, and renewable energy environments.
Phone: +8613736779975
E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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