Comewill, a professional manufacturer and supplier in China, provides quality 0.72-40.5kV Outdoor Current Transformer, which is a key component in high-voltage power systems, designed to convert large primary currents into standardized low secondary currents for measurement and protection.
A 0.72-40.5kV outdoor Current Transformer is used in medium and high-voltage systems to measure and monitor current safely. By applying electromagnetic induction, the transformer converts high primary current into a smaller proportional current that can be safely handled by meters, relays, and protection equipment.
As a specialized factory product in power distribution infrastructure, this type of transformer is designed for outdoor installation where equipment must withstand environmental conditions such as rain, temperature variation, and dust.
Outdoor substations
Power distribution stations
Industrial power systems
Renewable energy grid connections
Dry Type Current Transformer
Dry type transformers do not contain insulating oil. They feature a relatively simple structure and are easier to maintain. This type is commonly used in environments where oil leakage prevention is required.
Key characteristics:
Lower maintenance complexity
No insulating oil inside
Suitable for relatively dry environments
Oil-Immersed Current Transformer
Oil-immersed designs use insulating oil to improve electrical insulation and thermal performance. They are commonly used in outdoor installations with higher humidity or variable weather conditions.
Key characteristics:
Strong insulation capability
Suitable for humid outdoor environments
Requires periodic oil inspection
Bushing Type Current Transformer
Bushing type transformers are often installed inside power equipment such as transformers or oil circuit breakers. Their compact design helps save installation space.
Features include:
Compact installation structure
Integration with existing electrical equipment
Suitable for equipment-embedded measurement
Pillar Type Current Transformer
Pillar type units are installed on independent structures or foundations in substations. Their design supports stable outdoor operation.
Features include:
Stable installation structure
Suitable for open outdoor substations
Good mechanical strength
Measurement Current Transformer
Measurement CTs provide accurate current data for energy metering and power monitoring. They are widely used in metering systems and grid operation monitoring.
Applications include:
Energy billing systems
Power monitoring systems
Distribution network data analysis
Protection Current Transformer
Protection CTs work with protection relays to detect abnormal current conditions such as short circuits or overloads.
Functions include:
Triggering protective relays
Supporting fault detection
Improving power system safety
Comewill produces multiple models of quality 0.72-40.5kV outdoor Current Transformer designed for different installation scenarios.
1. Reliable insulation structure
2. Stable measurement performance
3. Weather-resistant outdoor design
4. Multiple installation configurations
5. Support for customized specifications
Electrical substations
Power grid monitoring systems
Industrial power distribution networks
Renewable energy power plants
Utility metering infrastructure
To ensure long-term operation of a 0.72-40.5kV outdoor Current Transformer, routine inspection is recommended.
Checking insulation condition
Inspecting oil level for oil-immersed units
Verifying connection stability
Monitoring measurement accuracy
Q1: What voltage range does a 0.72-40.5kV outdoor Current Transformer support?
It is designed for medium-voltage power systems within the 0.72kV to 40.5kV range, commonly used in distribution networks and substations.
Q2: What is the difference between measurement CT and protection CT?
Measurement CTs focus on current accuracy for metering, while protection CTs prioritize fast response and reliability for relay protection systems.
Q3: Can the 0.72-40.5kV outdoor Current Transformer be customized?
Yes. Many supplier and manufacturer companies, including Comewill, provide customized ratios, installation structures, and insulation designs.
Q4: Are these transformers suitable for harsh outdoor environments?
Yes. Outdoor CTs are designed with weather-resistant insulation structures and mechanical strength to operate in varying environmental conditions.
As a professional China manufacturer and supplier, Comewill provides quality 0.72-40.5kV outdoor Current Transformer products for wholesale and customized supply, supporting different electrical infrastructure requirements worldwide.
