How to Extend The Service Life of a Vacuum Circuit Breaker?

The longer service life of vacuum circuit breaker means the direclty benefits for users, but how do you do to extend the service life of your VCB?

1. Make sure you seclect the right VCB products (selection reference of a VCB)

Technical specification data matching, the technical datas including:
*The Rated voltage and current
* Rated short-circuit breaking current
* Mechanical and electrical lifespan

2. Install the VCB professional

* Strictly read and follow the VCB manufacturer instructions.
* Make sure proper clearance and creepage distances.
* The vacuum circuit breaker should be installed in places without fire, explosion, serious filth, chemical and violent vibration.

3. Standard Operation and Maintenance

Over 80% of vacuum circuit breaker failures cause from the operating mechanism, not cause by the vacuum interrupter itself.

So maintence of the operating machanism is very important, as following is what you can do :

* Maintaining proper operating energy:
* Regular lubrication
* Checking fasteners regularly
* Cleaning the mechanism regularly

4. Inspection of the Vacuum Interrupter: the vacuum level is the key of the vacuum interrupter.

*Perform regular power frequency withstand voltage tests (apply the rated power frequency withstand voltage across the break for 1 minute; passing without flashover or breakdown).

*Use a magnetron discharge vacuum tester for precise measurements.

*Monitor allowable wear thickness of contact regularly

5. Inspection of Vacuum Circuit Breaker

*Regularly test the main circuit resistance, make sure the resistance value is stable, if the resistance exceeds 150% of the factory value, prompt action is required.

*Infrared Temperature Measurement: Regularly scan the incoming and outgoing terminals and busbar connections with a thermal imager to detect potential overheating hazards.

Products Description

How to Extend The Service Life of a Vacuum Circuit Breaker?

LW25-126 Outdoor High Voltage Porcelain SF6 Circuit Breaker

1. Rated Voltage:126kV
2. SF6 gas:good arc extinguishing performance.
3. Standard Compliance:GB/T1984-2014
4. Product advantages:superior breaking capability, reliable insulation, and minimal maintenance.

company Introduction

Shaanxi West Power Tongzhong Electrical Co., Ltd.

Shaanxi West Power Tongzhong Electrical Co., Ltd. is a leading manufacturer with over 20 years of experience, specializing in high quality 7 to 40.5kV vacuum circuit breakers, switchgears, and a wide range of electrical products. Our advanced manufacturing process ensures reliable, durable solutions, especially our VTZ series vacuum circuit breakers, which are maintenance-free for up to 20 years. With a team of expert technicians, we excel in R&D, manufacturing, and after-sales service for both high and low voltage equipment, delivering excellence at every stage.

Professional team

Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment.

After-sales and Service

We are committed to providing exceptional after-sales support to our global customers. Our services include worldwide technical support and warranty, such as online remote technical support, video training, and on-site installation guidance.

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