InteliLite
NT
– AMF20/25, SW version 2.2, ©ComAp – September 2014 36
IL-NT-AMF-2.2-Reference Guide.pdf
Earth Fault measurement (module)
The Earth Fault protection is done by extension module IC-NT CT-BIO7.
Technical characteristics
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Input current range up to 5 A (
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Measurement range from 1 to 500 A
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Operating frequency 50 or 60 Hz
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Tripping current software programmable from 1 to 500 A or DISABLED
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Tripping delay software programmable from 0,03 to 5 seconds
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Included seven binary inputs or seven binary outputs (IL-NT-CT-BIO7)
Hint:
For more technical details see
Hint:
For more information about the application settings see
Operating principle
When the measured current exceeds the set value, this indicates that part of the current is dispersed
to earth and after the set
protection and
activated. Earth Fault protection is not active when gen-set does not run and also when
DISABLED.