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Survey and repair leaking SF6 assets cost effectively and with minimal disruption to operations

EMT delivered the technology and expertise to survey and repair leaking SF6 assets with a cost-effective solution and minimal disruption to operations, which was welcomed by the customer, whose alternative would have been to replace the asset at considerable cost and with significant disruption to the substation – another job well done by the EMT Site Services Team.

 

Industry: Power T&D

Application: SF6 gas inspection cover plate repairs   

Customer: UK electric utility substation

Date: August 2022

Problem: Leaking SF6 gas on cover plates

Solution: SF6 leak repair to inspection plates – non pressurised. 9 repairs completed

Works:

  • Leak surveyed by EMT Site Services team using EMT Handheld SF6 Leak Detector
  • Existing gas purity analysed with EMT Zerowaste Rapide+ Analyser
  • Asset de-gassed using EMT Gas Cart
  • Surface preparation and cleaning works undertaken
  • Specialist repair works completed
  • Asset re-gassed, gas purity checked, and post repair testing completed
  • Further scheduled preventative maintenance work has been recommended by EMT Site Services due to high H20 ppm readings recorded in the SF6 gas
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Site Services

Field based SF6 gas top up utilising EMT Site Services and patented EMT Smartfill technology

EMT Site Services can top up your SF6 assets – contact the team to see how we can provide both the test equipment, and trained and certified SF6 gas technicians, for the safe filling and topping up of SF6 compartments. Performing these essential tasks, our Site Services team can provide 24/7 coverage across the network, supported by tailored service packages to suit specific gas handling requirements, and complimented with a range of SF6 gas management services.

 

Our team have recently completed work on two sites for a UK utility:

 

Industry: Solar Power Generation

Application: SF6 Gas Topping Up x 2 Sites

Customer: UK Solar Farm

Date: June 2022

Problem: Low gas pressure reported

Solution: Field based SF6 gas top up utilising EMT Site Services and patented EMT Smartfill technology

 

Works:

  • Leak survey completed using EMT SF6 leak detector
  • Pressure survey completed
  • SF6 gas top up completed
  • Continued pressure monitoring advised
  • Future repair, de-gassing and re-gassing works discussed

Deliverables: SF6 gas top up restored pressure to normal operating conditions. The client was satisfied, particularly given there were challenges sourcing the correct fittings to carry out the works – EMT took care of all requirements from initial surveillance, to sourcing bespoke fittings for connection, and topping up of the SF6 compartments

 

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EMT’s products and services deliver a total SF6 management solution to ensure you have everything you need to keep your SF6 operations running smoothly.