Project profile: Improving switchgear inspections at London's Stansted Airport

In this project profile, Lonsdon Stansted Airport Engineering Team performed an existing building retrofit in order to reduce the amount of time needed for maintenance inspections.


Project name: Improving Switchgear Inspections at London's Stansted Airport

Project type: Existing building retrofit

Engineering Firm: London Stansted Airport Engineering Team

Building type: Utilities/public works/transportation

Location: Stansted, Essex, United Kingdom

Timeline: Nov. 11, 2012 - Dec. 24, 2012

Thermographer inspects switchgear at Stansted Airport through an IRISS CAP infrared camera. Courtesy: London Stansted Airport

Building details

London Stansted Airport has permission to handle 35 million passengers annually and currently 17.5 million people pass through the terminal building each year. The airports electrical structure is enormous. Power is brought onto the site at 33kV and transformed down to 11V. 

Project details

At best, Stansted's engineers had four hours per night in which to conduct predictive maintenance inspections. By the time they had the system safe, the window of opportunity was reduced even more. This meant the entire inspection cycle was significantly protracted and no system could be checked under load. With the installation of IRISS CAP Series infrared inspection windows, the savings in terms of inspection time and associated costs went up dramatically. Payback was instant, but the benefits extended beyond that.

With IRISS infrared windows, Stansted Airport switchgear systems are thoroughly inspected. Courtesy: London Stansted Airport

Project success

Once the IRISS windows were installed there was an immediate impact on switchgear inspections time. It took just took five hours to complete the job in daylight hours, including walking from one substation to the next and coffee breaks. Previously, it took the engineers two nights to inspect just one panel. There is no longer a need for isolations or back feed, and the engineers' safety is completely assured. A single thermographer with a thermal imaging camera and without PPE can do everything. An initial thermal survey of the fully energized low-voltage systems that serve the main terminal block showed just two minor cable faults. For the first time, the airport had a benchmark for trending future performance and the complete assurance that everything was working optimally. This was not possible before install the IRISS CAP Series IR window.

London Stansted Airport, Enterprise House, Bassingbourn Road, Essex, United Kingdom CM24 1QW

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
Variable speed drives: Smooth, efficient, electrically quite motion control; Process control upgrades; Mobile intelligence; Product finalists: Vote now; Product Exclusives
Machine design tips: Pneumatic or electric; Software upgrades; Ethernet advantages; Additive manufacturing; Engineering Leaders; Product exclusives: PLC, HMI, IO
This article collection contains the 5 most referenced articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security