LB6-35, LABN6-35KV Outdoor Oil-immersed Current Transformer
LB6-35, LABN6-35 Current Transformer Overview The LB6-35 and LABN6-35 current transformers are outdoor, fully-sealed, oil-paper insulated devices designed for 35kV AC power systems operating at a rated frequency of 50Hz or 60Hz. These transformers are specifically engineered for applications in current measurement, energy metering, and relay protection. With a robust oil-paper insulation and weather-resistant construction, […]
LB6-35, LABN6-35 Current Transformer Overview
The LB6-35 and LABN6-35 current transformers are outdoor, fully-sealed, oil-paper insulated devices designed for 35kV AC power systems operating at a rated frequency of 50Hz or 60Hz. These transformers are specifically engineered for applications in current measurement, energy metering, and relay protection. With a robust oil-paper insulation and weather-resistant construction, the LB6-35 and LABN6-35 are ideal for use in medium-voltage power systems, ensuring reliable and accurate performance in demanding outdoor environments. Suitable for both high- and low-voltage systems, these transformers deliver exceptional durability and precision for energy and current monitoring.
Type Designation for LB6-35 and LABN6-35
Key Features of LB6-35 and LABN6-35 Current Transformers:
- L: Current transformer for accurate measurement and protection.
- B: Voltage grade for 35kV systems.
- 6: Series design code.
- W1, W2: Antipollution classes (Class II or III).
These transformers are designed for medium-voltage systems with customizable oil-immersed tanks, allowing tailored dimensions, materials, and designs to suit specific application requirements. Additionally, the oil-immersed external tank is fully customizable to meet specific requirements, including adjustments to dimensions, materials, and design based on application needs.
Service Conditions for LB6-35 CT
- Installation Location: Suitable for outdoor environments.
- Ambient Temperature:
- Maximum: +40°C
- Minimum: -25°C
- Altitude: Up to 1000 meters above sea level.
- Pollution Class: Available in Class II and Class III for enhanced environmental resistance.
- Custom Options: Oil-immersed tanks can be tailored to meet specific service conditions, including unique materials and dimensions.
Construction of LABN6-35 CT
The body of the LB6-35 (LABN6-35) current transformer is housed in an oil tank filled with transformer oil. The product undergoes vacuum drying and oil immersion treatment. With a fully sealed structure, it effectively prevents oil aging. Additionally, the oil tank shell can be customized in dimensions, materials, and design to meet specific requirements.
Technical Data for LB6-35 & LABN6-35
- High Performance: Reliable for modern power systems.
- Insulation Level: 40.5/95/185kV.
- Secondary Current: 5A precision.
- Creepage Distance: ≥735mm (standard), ≥1100mm (W2).
- Customizable: Tailored to unique needs.
| 额定一次电流(A) | 准确级次组合 | 额定输出(VA) | 10P级准确限值系数 | 短时热电流(I th)(KA/S) | 额定动稳定电流(I dyn)(KA) | |||
| 5 | 0.5/10P1/10P2 0.2/10P1/10P2 |
30 | 40 | 40 | 30 | 20 | 0.5 | 1.28 |
| 10 | 1 | 2.55 | ||||||
| 15 | 1.5 | 3.83 | ||||||
| 20 | 2 | 5.1 | ||||||
| 30 | 3 | 7.65 | ||||||
| 40 | 4 | 10.2 | ||||||
| 50 | 5 | 12.75 | ||||||
| 75 | 7.5 | 19.13 | ||||||
| 100 | 10 | 25.5 | ||||||
| 150 | 15 | 38.3 | ||||||
| 200 | 20 | 51 | ||||||
| 300 | 30 | 76.5 | ||||||
| 400~2000 | 40 | 102 | ||||||
Note: We offer tailored solutions for high-voltage current transformers, including customized primary current ratings, accuracy class combinations, and output ratings to meet your specific operational needs. With short-time thermal current ratings up to 40kA and dynamic current capabilities up to 102kA, our transformers are designed for optimal performance and reliability. Contact us today to design a transformer that fits your exact requirements.
Accuracy limit ractor of class 10P
Installation Dimensions
LB6-35 & LABN6-35 PT Installation Dimensions
| Rated Primary
Current (A) |
B | h | H | Oil Weight
(kg) |
Total Weight
(kg) |
|---|---|---|---|---|---|
| 5-75A | 508 | 1315 | 1475 | 25 | 160 |
| 100-600A | 508 | 1315 | 1475 | 25 | 160 |
| 750-1000A | 548 | 1315 | 1475 | 29 | 190 |
| 1200-1500A | 588 | 1315 | 1475 | 29 | 190 |
| 2000A | 658 | 1335 | 1495 | 32 | 205 |
Ordering Guidelines and Special Requirements
To ensure your specific requirements are met, please provide the following details when placing an order for the LB6-35 or LABN6-35 current transformers:
- Type and Current Ratio: Specify the transformer type (LB6-35 or LABN6-35) and the desired primary current rating.
- Accuracy Class and Output: Indicate the required accuracy class combination and secondary output specifications (e.g., 0.5/10P1/10P2).
- Insulation Level: Confirm the insulation level (e.g., 40.5/95/185kV) and any additional service conditions such as pollution class.
- Custom Design Options: Provide details for customization needs, including specific dimensions, materials, or design adjustments for the oil-immersed external tank.
- Installation Requirements: Include details such as ambient conditions (temperature, altitude) and installation location (outdoor or indoor).
For tailored solutions, feel free to consult with our technical team to design a transformer perfectly suited to your operational needs.
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