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First trip analysis DCM Switch control Travel parameters & fastening brackets Wireless testing

Travel parameters and fastening brackets


Travel parameters

It is important to monitor the contact times on any given circuit breaker. However, it does not tell you much about the linkage and mechanism behavior. Today, it is a requirement from IEC IEC62271-100 that reference characteristics for travel parameters are used during type testing, routine testing, and service/commissioning work.

Travel parameters that are important for a good breaker analysis:




  • Stroke

  • Contact penetration

  • Overtravel

  • Undertravel

  • Rebounce

  • Speed

  • Damping

  • Lenght of arcing contact

Mechanical routine testing of circuit breakers

Travel parameter 3

For a factory it imperitive that you have fastening kits, specially developed for the breaker at hand. They need to be very rugged and last for millions of operations.




Fastening for EDF-SK



Service and commissioning of circuit breakers

If you are a member of a service team handling commissioning and service of circuit breakers, you need a flexible kit that handles several breaker types and still gives you the best possible accuracy.

The equipment

You get a partner that is specialised in manufacturing solutions that fits your requirements. There are several transducer fastening brackets designated for a given breaker type available, but also flexible kits that will fit most breakers and mechanisms.



s120Travel parameter 2


S120 universal fastening kit and S119- LTB E HPL B


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