short time overcurrent

IEC 62052-11, #7.2
Short-time overcurrent test shall not damage the meter. The meter shall perform correctly when back to its initial working condition.

Conditions for direct connected meters:
Test current: 30 Imax, duration one half cycle at nominal frequency

Conditions for meters connected trough current transformers:
Test current: 20 Imax, duration 0.5 s

Published by

Reinhard Günther

Reinhard Günther

more than 30 years experience in energy metering

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