Category: SF6

Introduction:

In the intricate world of electrical switchgear maintenance, ensuring the safety and reliability of equipment stands as a non-negotiable priority. At the heart of this effort lies SF6 gas, a crucial insulating medium that plays a pivotal role in safeguarding electrical systems and personnel. Delving deeper into the subject, this blog post sheds light on the indispensable nature of SF6 gas analysis and its impact on equipment safety and longevity.

Understanding SF6 Gas Analysis:

SF6 gas serves as the lifeblood of electrical switchgear, facilitating the smooth flow of energy while mitigating the risk of electrical faults. However, the integrity of SF6 gas can degrade over time, potentially jeopardizing equipment performance and safety. SF6 gas analysis emerges as a vital tool, offering invaluable insights into crucial parameters such as gas purity, moisture levels, and decomposition byproducts. By effectively monitoring SF6 gas properties, maintenance teams can stay ahead of potential issues and ensure uninterrupted operation.

Benefits of SF6 Gas Analysis:

The benefits of regular SF6 gas analysis are manifold. By proactively monitoring gas properties, maintenance professionals can detect and address issues before they escalate, thus preventing equipment damage and minimizing downtime. Furthermore, accurate SF6 gas analysis data serves as compelling evidence of equipment integrity and safety compliance, bolstering confidence in regulatory inspections and audits.

Cambridge Sensotec Solutions:

Cambridge Sensotec stands at the forefront of SF6 gas analysis solutions, offering advanced analysers tailored to the unique requirements of electrical switchgear maintenance. Our cutting-edge technology empowers maintenance professionals with precise measurements and actionable insights, enabling them to make informed decisions and optimise equipment performance. With Cambridge Sensotec’s comprehensive SF6 gas analysis solutions, the journey towards enhanced equipment safety and regulatory compliance becomes both achievable and efficient.

Conclusion:

In conclusion, SF6 gas analysis is not merely a maintenance task but a cornerstone of equipment safety and reliability in electrical switchgear installations. By leveraging the power of data and technology, maintenance teams can proactively monitor SF6 gas properties, detect anomalies, and take timely corrective actions. With Cambridge Sensotec’s expertise and innovation, safeguarding electrical switchgear with SF6 gas analysis becomes a streamlined and effective process.

For more information on our Rapidox SF6 gas analysis solutions, contact Cambridge Sensotec today and embark on the path to enhanced equipment safety and reliability.

Further Reading:

• SF6 Decomposition in High Voltage Switchgear Blog
• SF6 Gas Analysis: A Crucial Tool for Ensuring Safety in Electrical Switchgear Operations Blog
• SF6 in Electrical Switchgear Analysis & Safety Blog

Introduction

In the world of electrical engineering, high voltage electrical switchgear is essential in managing and controlling electrical power systems. A key component of these systems is sulfur hexafluoride (SF6), a gas celebrated for its exceptional insulating and arc-quenching properties. However, in high voltage environments, the decomposition of SF6 presents significant challenges and implications, affecting both the efficiency and the safety of power systems. This comprehensive exploration delves into the nuances of SF6 decomposition, examining its impact and exploring contemporary solutions to mitigate its effects.

What is SF6 and its Role in High Voltage Electrical Switchgear?

Sulfur hexafluoride (SF6) is a colourless, odorless, non-toxic, and non-flammable gas, extensively utilised in high voltage electrical switchgear. Its remarkable insulating properties allow for significant reduction in the physical footprint of switchgear. SF6’s ability to efficiently control high voltage circuits makes it indispensable in preventing electrical faults and minimising equipment damage, ensuring uninterrupted power supply and system reliability. Its role is not only pivotal in ensuring operational efficiency but also in enhancing the safety standards of electrical power systems.

The Science Behind SF6 Decomposition

The decomposition of SF6 within switchgear primarily occurs due to electrical discharges. These discharges can be spurred by high voltage stress, the presence of impurities, and fluctuating operational conditions. When partial discharges occur, they instigate the breakdown of SF6 molecules, leading to the formation of various sulfur and fluorine compounds. These decomposition products can be detrimental to both the switchgear equipment and the environment, making their management a critical aspect of electrical system maintenance.

Implications of SF6 Decomposition in High Voltage Electrical Switchgear

The decomposition of SF6 results in by-products that can cause corrosion of switchgear components, thereby impairing their functionality and longevity. Moreover, these by-products, due to their chemical nature, can be harmful to the environment, contributing significantly to greenhouse gas emissions. The understanding and effective management of SF6 decomposition are therefore imperative for maintaining the integrity of electrical equipment and for the protection of the environment.

Modern Solutions and Innovations

Technological advancements have led to the development of sophisticated monitoring systems capable of detecting SF6 decomposition in high voltage switchgear. Pioneers like Cambridge Sensotec have introduced state-of-the-art solutions to monitor the purity and decomposition levels of SF6. These systems play a crucial role in ensuring the longevity and safety of electrical equipment. Innovative SF6 monitoring solutions are key to proactive maintenance and are instrumental in preventing system failures.

Sustainable Practices and SF6 Alternatives

With growing environmental concerns, the electrical industry is actively seeking alternatives to SF6 and adopting sustainable practices. Development efforts are focusing on gases with lower global warming potential and the design of eco-friendly switchgear. SF6 are leading the way in providing information and services related to SF6 and its sustainable alternatives, helping the industry transition towards more environmentally responsible solutions.

Conclusion

The decomposition of SF6 in high voltage electrical switchgear is a complex issue that requires careful consideration and management. Through advanced monitoring systems, sustainable practices, and continuous research, the industry is evolving to address the challenges posed by SF6 decomposition. It’s vital for professionals in the field to stay informed and adopt solutions that safeguard equipment and the environment.

For expert solutions and more information on managing SF6 in high voltage electrical switchgear, visit Cambridge Sensotec and SF6. Stay ahead in the field with cutting-edge technology and sustainable practices.

The integrity and safety of electrical switchgear are paramount in any power distribution system. Sulphur Hexafluoride (SF6) is widely used as an insulating and quenching medium in switchgear because of its outstanding electrical properties and chemical stability. However, monitoring SF6 gas is critical, as it is a potent greenhouse gas. Cambridge Sensotec stands at the forefront of SF6 gas analysis, ensuring the safe and efficient operation of electrical switchgear across various industries.

Why SF6 Gas Analysis is Essential for Electrical Switchgear

Electrical switchgear is integral to power systems, controlling and protecting electrical equipment. SF6, due to its high dielectric strength, allows for compact and safe designs. But any leak or handling issue could significantly impact performance and safety. Regular SF6 gas analysis is critical to:

• Detecting Gas Purity: Ensuring the purity of SF6 gas is essential, as contaminants can significantly affect its insulating properties.
• Leak Detection: Early detection of leaks prevents operational disruptions and environmental damage.
• Compliance with Regulations: Monitoring and reporting SF6 usage is required to comply with global greenhouse gas regulations.

Cambridge Sensotec: Leading the Way in SF6 Gas Analysis

Cambridge Sensotec has been a trusted name in SF6 gas analysis for years. Our advanced solutions cater to all aspects of switchgear maintenance and are designed with the latest technologies to provide precise and reliable results.

Featured Product: The Rapidox SF6 6100

Our flagship analyzer, the Rapidox SF6 6100, is a portable device that can measure SF6 purity, pressure, and humidity, among other parameters. With these measurements, electrical switchgear operators can:

• Assess the condition of their SF6 gas
• Take prompt corrective action to fix any issues
• Optimise the lifespan and reliability of their switchgear

Custom Solutions for Varied Applications

At Cambridge Sensotec, we understand that different switchgear applications may require tailored approaches. Our team of experts works closely with clients to develop custom solutions that meet specific operational needs. Whether for utility-based power systems or industrial applications, our SF6 analysis tools provide actionable insights.

Commitment to Environmental Stewardship

By providing accurate SF6 gas analysis, we not only ensure the safety and efficiency of electrical switchgear but also help our clients minimise their environmental impact. Accurate SF6 monitoring with our solutions contributes to better SF6 management and conservation efforts.

Contact Us for More Information

Have questions or need more information about SF6 gas analysis and electrical switchgear safety? Contact Cambridge Sensotec‘s expert team for personalised advice and information on our range of products.

In Conclusion

The safe operation of electrical switchgear is non-negotiable. SF6 gas analysis plays a crucial role in maintaining system integrity and performance. With Cambridge Sensotec’s state-of-the-art solutions, operators can ensure that their switchgear operations are not only safe but also compliant and environmentally responsible.

Opt for Cambridge Sensotec’s expertise in SF6 gas analysis – your partner in safeguarding electrical switchgear operations.

The range of Rapidox 6100 SF6 gas analysers have representation and distribution across 62 countries and in recent weeks, thanks to the efforts of Simon Langston (SF6 Global Sales Manager) and our Indian agents, has further strengthened its grip on the Indian market with nationwide product approval being achieved at the highest level of Indian Power Generation.

Our team of technicians and engineers have proved the MK2 6100 to be a reliable and consistent provider of SF6 gas analysis and associated by-products to be found within high voltage gas compartments. This high-level product approval has had an immediate impact and we are already scheduling further demonstrations and tests across the majority of the state grid utilities. Expectations for the Rapidox brand to further increase its market share in the country couldn’t be higher.

As one Senior Engineer stated while reviewing the performance of the Rapidox 6100, “This analyser provides us with impressive accuracy and has many unique and beneficial features which we have not encountered before from our existing equipment.” These features coupled with the exceptional after-sales services offered locally, make for compelling arguments in favour of the Cambridge Sensotec products.

Additionally, plans are already in place to launch a range of new products in the neighbouring countries to India and an imminent release of a completely innovative product development to serve India and further afield is currently in production.

 

Rapidox SF6 Gas Analyser

What is it, where, how & why it is used – The science bit…

Commonly used in electrical switchgear, transformers and substations as an electrical insulation, arc quenching and cooling medium, Sulphur hexafluoride (SF₆) is a man-made gas comprising of one sulphur and six fluoride atoms.  It is chemically stable, non-flammable and highly electronegative, with an excellent dielectric property of approximately 2.5 times more than air.

Electrical arcs can be caused within electrical power systems such as switchgear and the high electronegativity and heat transferring properties of SF₆ means that it is able to absorb the electron energy and lower the arc temperature. Combining SF₆ gas and free electrons effectively prevents electron avalanches and flashovers.

SF₆ partially decomposes whilst under the influence of electrical discharges, and oxygen, moisture, and decomposition products such as sulphur dioxide may be created. Unlike other insulating mediums, SF₆ gas has the unique ability to ‘self-heal’ after the discharge. This is one of the reasons for its widespread use within the electrical industry.

Keep it safe, keep it green – The Safety bit…

Regular analysis of SF₆ gas is essential.  Regular periodic servicing must be carried out throughout the lifetime of the equipment. This ensures the protection of personnel and machinery.

An international agreement between nations called the Kyoto Protocol came into force in 2005. It commits its parties by mandating country-by-country reductions in greenhouse gas emissions. Due to its chemical stability, SF₆ gas has the potential to remain in the atmosphere for thousands of years. So, the agreement has identified it as a greenhouse gas with a limitation as to the amount that can be released into the atmosphere.

Our SF6 gas analyser – The manufacturing bit…

Cambridge Sensotec has developed a new Mark II Rapidox SF₆ 6100 gas analyser featuring a pump back gas return function.

It extracts the SF₆ gas from equipment such as Gas Insulated Swichgear (GIS) and simultaneously analyses all measured gases. It then pumps it back at the same pressure as used within the electrical equipment by using a powerful 35 bar compressor. A vacuum purge cycle and gas storage system ensures no air is allowed to contaminate the gas sample and no SF₆ gas is permitted to escape during the testing period.

Rapidox uses high-precision infrared (IR) sensor technology for the analysis of SF₆ gas. Decomposition products sulphur dioxide (SO₂) and moisture (H₂O) can also be measured by the Rapidox. Additional sensors for gases such as carbon monoxide (CO), hydrogen sulphide (H₂S) and hydrogen fluoride (HF) are also available.

The Rapidox SF₆ 6100 pump back gas analyser has been developed as a truly portable field instrument with features such as:

• An inbuilt microprocessor operated by a 7” colour touchscreen
• The ability to store 12 months continuous data
• An in-built printer
• Pre-loaded IEC and CIGRE test parameters
• The ability to customise test parameters
• An 8-hour lithium ion battery
• Robust IP66 Peli case
• Multi language capability
• Between 2-8 minute testing options
• Up to 8 gas bespoke build capability
• Teamviewer connection for instant service
• 35 bar gas inlet

For further information regarding this or any of our gas analysis products, please contact us on +44 (0)1480 462142, or email us at sales@cambridge-sensotec.co.uk.

 

On the 30^th May 2019, Cambridge Sensotec proudly achieved ISO 9001:2015 accreditation under the BSI (British Standards Institution). Cambridge Sensotec Ltd now joins 1.3 million companies across 112 countries worldwide that hold this prestigious certificate.

The certification shows that our quality policy, quality management and operating systems, merit the requirements of this UKAS accredited international standard. Cambridge Sensotec is delighted to be recognised for displaying such high levels of standards.

Increasingly in this global market place, organisations need to be able to demonstrate sound management that is orientated towards the customer. ISO’s 9001:2015 and its risk-based approach, provides a solid framework for meeting customer challenges and provide the foundation to long term sustainability and profitability within the organisation.

Quality Management System (QMS) enables an organisation to have confidence in the products and services it provides to its customers. QMS acts as a platform to ensure consistency, efficiency and traceability as well as promoting best practice, improving customer service and satisfaction in key areas like delivery times, quality and service.

View or download our certificate.

You may have already met Simon Langston, the Sales Executive from Cambridge Sensotec. Below are some of his thoughts on the present and future of the SF₆ industry.

What’s the best thing about working at Cambridge Sensotec?
Cambridge Sensotec is a great place to work, staffed with an intelligent and friendly team of individuals who have a loyal and dedicated attitude. They each play their part in producing and developing reliable products whilst ensuring customer satisfaction and retention as one of their top priorities. I have been given the opportunity to enhance this and apply my own skills to attract new customers. I take great pride in representing such an ethical and respectable company.

During your time at Cambridge Sensotec, how much has the SF₆ industry changed?
Within the Power Industry, the SF₆ market has changed by the growing emphasis being given to the search for a reliable SF₆ alternative gas. However, general improvements in the performance and reliability of test results for SF₆ purity have led to increased confidence within the trade. Having listened to customer feedback, the team here at Cambridge Sensotec have made modifications to our products and now Cambridge Sensotec has a product range which competes on the market. This is promoted via our wide network of distributors to become the recognised brand.

What’s the biggest challenge for a product like Rapidox SF₆ in the current market?
To keep abreast of industry standards and to meet the expectations of the end user by providing consistently reliable gas analysis.

What makes Rapidox SF₆ stand out from the competitors?
Our attention to detail and willingness to listen and respond to customer needs, as well as our before and after-sales customer service. Going that extra mile is second nature to us!

What’s been the most surprising aspect you have encountered during your time in the role?
Learning how complex it can be to achieve accurate gas analysis. There are multiple factors which can affect results; even a 0.1% variation in certain results can be the difference between a successful or a failed result.

Are there any new products or innovations on the market that have caught your eye?
One of our competitors have a machine that is presented as having been built for the ‘Novec’ gas. It’s caught my attention simply because it shows intent towards where the future of GIS may be heading.

What does the future hold for you and SF₆?
Management of an ever-increasing market share and unit sales. The Rapidox SF₆ machines will continue to be fine-tuned and will evolve as new technology, innovations and customer needs dictate.

Which tradeshows have been productive, and which tradeshows will you be attending in the future?
All trade shows that I have attended have proven to be productive in their own way. My 2019 Exhibition Plan is:

May – ICCI in Istanbul
July – IEEE in Mexico City
September – PowerGen in Kuala Lumpur
November – EP China in Shanghai & Electricx in Cairo
December – Fise in Medellin

If you would like to meet with Simon at any of the tradeshows, or have any questions, then please email simon@cambridge-sensotec.co.uk.