Handheld instruments
FAST, CONVENIENT CHECKING FOR EV CHARGE POINTS
T
opportunity arose to develop its testing by using a more advanced camera to see how the results would differ – it seemed like the perfect fit. Neil Stokes, Optical Measurements Systems at
ARA says: “Our relationship with Matthew Clavey at Thermal Vision Research goes back a long way. We’ve been looking at thermal imaging across the site for various things. I’ve had demonstrations from a couple of companies but a lot is based on experience and trust with a particular distributor or supplier. Matthew was really helpful so he loaned the camera to us to try for a week. He always gives us the right technical answers whenever we had a question. “If I’m honest, I think it was the service and
support from Matthew that sold us down the Teledyne FLIR route. The support from a local distributor really was key - having someone at the end of the phone or willing to visit and talk us through things is really helpful.”
IMPROVING WING DESIGN FOR BETTER AERODYNAMIC PERFORMANCE Before completing the test, ARA ran trials to ensure that the handheld T1K could be controlled remotely over a distance by installing it in the tunnel. The ARA team needed to control the camera from about 30
metres away so they could retrieve the images live on a computer, allowing them to see the airflow as it happened. As the tunnel is running, it can cause vibrations which could cause the cameras to go out of focus so being able to see the images live means they can correct any issues like this. Using the Teledyne FLIR T1K camera enabled
greater accuracy during the testing and improved accuracy on identifying the point of transition. The Teledyne FLIR 655 is slightly more sensitive than the T1K but it didn’t lose anything with the loss of sensitivity – it just gained improved resolution. It gave better accuracy for proving the theory correct. The T1K camera uses FLIR Vision
Processing which combines HD resolution, MSX, and UltraMax image enhancement to produce brilliant thermal images with up to 3.1 million pixels. The Teledyne FLIR T1K allowed ARA to
prove the Hybrid Laminar Flow Control theory is true within a safe and controlled environment. It is now able to offer the T1K set up in the windtunnel as a concept to customers for improving wing design for better aerodynamic performance.
Teledyne FLIR
www.flir.co.uk
he new EVCC300 electric vehicle charger checker from Megger is a convenient and easy-to-use all-in-one
tool for checking the electrical safety and correct operation of Mode 2 and single- phase Mode 3 EV charge points rated at up to 32 A. Suitable for use with the vast majority of charge points installed in domestic properties, company car parks and similar locations, the EVCC300 is completely self-contained and provides fast results that include invaluable pass/fail guidance. “With huge numbers of EV charge points
already in service, and more being installed every day, we realised contractors needed a fast, easy way of checking their performance and safety,” says Paul Swinerd, product manager, General Electrical Test of Megger. “We have developed the EVCC300 specifically to meet this need. We believe it offers the fastest and most convenient way of checking charge points, and it’s equally suitable for rapid non-certification tests on new installations and for regular ‘health checks’ on existing points. We’re confident that users will soon wonder how they managed without it!” With a robust gun-shaped body optimised
for convenient handling, this innovative new instrument offers an extensive range of operational and safety checks. Operational tests include proximity pilot (PP) and control pilot (CP) checks. Uniquely, the EVCC300 not only sets the CP conditions, it also reads the CP code received back from the charger and confirms that it meets the requirements of IEC 61851-1:2017, without the need to use an external oscilloscope. Safety checks include ground open circuit
and ground voltage checks, PE resistance checks and touch-voltage tests. The EVCC300 also checks the tripping speed of RCDs protecting the charge point, which is particularly useful as an aid to diagnosing issues related to nuisance tripping. Megger’s ground-breaking EVCC300 electric vehicle charger checker can be used directly with Type 2 connectors and is supplied, as standard, with an adaptor for Type 1 (end of lead) connectors.
Megger
uk.megger.com Instrumentation Monthly October 2022 55
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