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CRD250DA12E-XM3 Consequence of frequent switch tripping

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ZAO
ZAO Contributor Level 1
in Module Products

Hi,

I am currently using the CRD250DA12E-XM3 inverter to supply a test-rig used to examine short circuit faults.

I have a downstream MCB that is intended to provide protection during abnormal short-circuit current conditions. During one of these abnormal events, the 3A-rated MCB trips as expected. However, the inverter switches also trip and enter a latched-off state; although the short-circuit current shouldn't exceed the inverter’s rated current.

What could be causing the inverter to trip in this situation? And if this occurs relatively frequently, could it result in any permanent damage to the inverter?

Many thanks.

Kind regards,

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  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
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