LW8- 40.5 Outdoor High Pressure AC Sulfur Hexafluoride Circuit Breaker

Product Introduction:

The LW8-40.5 outdoor high-voltage AC sulfur hexafluoride (SF6) circuit breaker features a compact porcelain post structure, equipped with the CT14 spring operating mechanism. This product is designed for easy installation and reliable operation, especially in locations requiring frequent operations. With a mechanical lifespan exceeding 3,000 operations and excellent sealing performance, it ensures a gas leakage rate of less than 1% annually. Additionally, it comes with built-in high magnetic permeability microcrystalline alloy current transformers to ensure precise current measurement.

Key Features:

1. High Durability: The mechanism supports over 3,000 operations, suitable for frequent switching operations.

2. Excellent Sealing Performance: Imported sealing gaskets and a V-shaped sealing ring with spring pressure compensation ensure the annual gas leakage rate is below 1%.

3. Accurate Current Measurement: Built-in high-permeability microcrystalline alloy current transformers offer precision levels of 0.2 or 0.2s, with up to 12 CTs available upon request.

4. Reliable Operation: The CT14 spring operating mechanism guarantees high reliability and ease of adjustment.

5. Easy Installation: The compact design allows for straightforward installation, reducing installation time and costs.

Specifications:

• Rated voltage: 40.5kV

• Rated current: 630A / 1250A

• Operating mechanism: CT14 spring operating mechanism

• Mechanical lifespan: ≥3000 operations

• Annual gas leakage rate: ≤1%

• Current transformer accuracy: 0.2 or 0.2s

Application Range:

The LW8-40.5 high-voltage AC SF6 circuit breaker is widely used in outdoor high-voltage transmission and distribution systems. It is particularly suitable for industrial parks, substations, and wind farms that require frequent switching operations and demand excellent sealing performance and high-precision current measurement.

Installation Notes:

1. Check all connections before installation to ensure they are secure and in good condition.

2. Ensure the installation site is well-ventilated and free from high humidity or corrosive environments.

3. Follow the steps in the equipment manual during installation to correctly connect the mechanism to the main body.

4. Regularly check the wiring of the current transformers to maintain measurement accuracy.

Precautions:

1. Strictly adhere to safety procedures during operation to prevent electrical shocks or accidents.

2. Ensure the circuit breaker is fully powered off before conducting maintenance or inspections.

3. Regularly inspect the sealing components, and address any gas leakage promptly.

4. Avoid excessive vibrations or abnormal external forces during operation.

5. If any abnormalities are detected, stop using the equipment immediately and contact professional maintenance personnel.

Technical Information