| Transmission & distribution


predictive maintenance and more intelligent grid management. CHINT is currently piloting a project that combines their ester oil transformers with advanced IoT sensors, enabling predictive maintenance that has reduced unexpected outages by 40% in initial trials. Looking further ahead, the use of


nanotechnology in ester oils could enhance their thermal conductivity and dielectric properties.


Aligning with global regulatory trends


The global regulatory landscape increasingly supports technologies that are safe, efficient, and environmentally sustainable. Ester oil transformers are well-positioned to benefit from these trends, offering a solution that aligns with evolving regulatory goals.


Due to their biodegradable and non- toxic nature, ester oils comply with stringent environmental regulations aimed at reducing ecological footprints. This compliance helps utilities and industries meet corporate social responsibility targets. For instance, the European Union’s recent directive on eco-design requirements for transformers explicitly favours solutions with lower environmental impact, giving


ester oil transformers a regulatory advantage in the EU market.


Additionally, the commitment of many countries to sustainability emphasises the need to reduce greenhouse gas emissions and environmental contamination, areas where ester oil transformers offer significant advantages. As regulations tighten on hazardous materials, ester oils provide a safer and eco- friendly alternative to conventional mineral oils. Regulatory bodies like the IEC (International Electrotechnical Commission) and IEEE (Institute of Electrical and Electronics Engineers) are increasingly promoting eco-friendly transformer fluids, and ester oils often meet or exceed these standards.


Moreover, governments worldwide offer incentives and subsidies for adopting green technologies. Ester oil transformers, being environmentally friendly, stand to benefit from such financial incentives, including green financing options, environmental grants, and tax credits. In the United States, for example, the Inflation Reduction Act includes provisions that could benefit companies investing in eco-friendly power infrastructure solutions such as ester oil transformers.


The trend toward harmonised regulations across countries further facilitates the acceptance of ester oil transformers in multiple markets, driving their adoption as a global solution for sustainable power transmission and distribution.


Practical viability


In summary, the growing emphasis on sustainability in the energy sector places a premium on solutions that reduce environmental impact, enhance safety, and extend the life of critical infrastructure, such as ester oil transformers.


CHINT’s range of ester based products, from medium to ultra high voltage applications, demonstrates the practical viability of the technology and as the industry continues to evolve, we can expect ester oil transformers to become an increasingly central component of modern, sustainable power systems worldwide. The future of power transmission and distribution is not just about moving electricity; it’s about doing so in a way that respects our environment, enhances safety, and improves efficiency. Ester oil transformers have a key role to play in meeting the demands of the evolving energy landscape.


DNO benefits from real-time cable tension monitoring


A UK distribution network operator (DNO) has successfully integrated the Cyclops remote monitoring system into its operations, marking what Cyclops describes as “a significant step forward in maintaining power cables and pylons.” By adopting this technology, “the DNO aims to ensure the safety, reliability, and efficiency of its electricity distribution network across diverse and challenging weather conditions.”


Power infrastructure, including distribution cables and pylons, is constantly exposed to varying environmental conditions that can impact its structural integrity. Temperature fluctuations cause expansion or contraction, winds can lead to sway, and moisture affects cable tension — all of which pose risks to the stability of the network. Traditionally, maintenance has relied on regular site visits and physical inspections, which are


costly, labour-intensive, and limited in their ability to pre-emptively address potential failures.


The Cyclops remote monitoring system offers what is described as a “transformative solution” by providing real-time data on cable tension and structural performance.


By using wireless load sensors, the system continuously monitors the load on distribution cables and transmits data via a secure gateway to a cloud-based platform. This technology enables the DNO to proactively manage and maintain its infrastructure, addressing issues before they escalate into major problems.


Typical plots generated by Cyclops remote tension monitor


800 780 760 740 720 700


Stay force Stay PSD (power spectral density)


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0 1 2 3 Frequency/Hz 4 5


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For the DNO mentioned above, the Cyclops system has become a critical tool in verifying that load levels remain within design specifications. Continuous monitoring allows the DNO to detect deviations that could signal potential structural failures, such as shifts in cable tension or anchor stability. In the event of significant changes, the system triggers immediate alerts, allowing swift, condition-based maintenance responses that minimise risks and prevent costly power outages.


Cyclops remote tension monitor


This proactive approach enhances the DNO’s ability to maintain regulatory compliance, improve safety, and extend the lifespan of its assets, says Cyclops. By reducing the need for frequent on-site inspections, the Cyclops system also cuts


operational costs and reduces the environmental impact associated with maintenance activities. Key benefits can be summarised as follows: Enhanced safety: early detection of anomalies reduces the risk of catastrophic failures. Prevented power outages: continuous monitoring minimises disruptions and maintains service reliability.


Predictive maintenance: real-time data lets you address issues before they develop fully, enhancing overall infrastructure integrity. Increased operational efficiency: by reducing the frequency of physical inspections, the Cyclops system saves time and resources, ensuring that maintenance visits are necessary and productive.


www.modernpowersystems.com | October 2024 | 35


33:30


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