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New tester provides quick and easy diagnosis of EV chargepoint problems

16 September 2015

The growing popularity of electric vehicles (EVs) and hybrids puts even more emphasis on the ability of the power charging infrastructure to operate effectively and safely at all times.

To meet this need, a new easy to use specialist test and diagnostic tool has been introduced that is capable of carrying out comprehensive validation and fault finding on all types of AC electric vehicle charging and supply equipment (EVSE).

The hand held EV100 tester from Seaward carries out all of the tests to ensure that EVSE operates correctly and safely at the time of installation and as part of any ongoing periodic maintenance schedules, in accordance with IEC 61851.

As well as carrying out basic field tests, more detailed diagnostic data from the chargepoint is retained in the unit and can be transferred to a mobile Android app using NFC wireless communications. This comprehensive technical data can then be quickly sent to a specialist engineer or head office location for full remote fault diagnosis and records management purposes.

The lightweight and handheld EV100 simulates all of the commonly used charging cable ratings to quickly and easily verify the correct response from the EVSE.

An extensive set of tests and measurements are automatically carried out and displayed at the press of a button, including output voltage, maximum available charging current, earth loop impedance and RCD trip time. Insulation tests are also carried out on the EV charging cable to verify safety for users.

Importantly the new tester can confirm the presence of correct mains supply and earthing connections on single or three phase systems without the need for additional equipment or the dismantling the charging point to access internal conductors.

For diagnostic testing, the dedicated EV100 tester also simulates a number of vehicle faults and measures the EVSE response, including disconnection time and the amplitude, frequency and duty cycle of the PWM signal.

The comprehensive simulation, test and diagnostic functions of the new EV100 means EVSE maintenance checks and fault finding can be undertaken quickly and cost effectively – helping to ensure that EV charging points remain operational and fit for purpose at all times.

Further details at www.seaward.co.uk/EV100


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