Supervision
Commissioning: Trip Circuit Supervision [74TC]
For CBs that trip by means of little energy (e.g. via an optocoupler), it has to be
ensured that the current applied by the digital inputs will not cause false tripping
of the CB.
Object to be tested
Test of the trip circuit supervision.
Procedure, part 1
Simulate failure of the control voltage in the power circuits.
Successful test result, part 1
After expiry of
»t-TCS« the trip circuit supervision TCS of the device should signal an alarm.
Procedure, part 2
Simulate a broken cable in the CB control circuit.
Successful test result, part 2
After expiry of
»t-TCS« the trip circuit supervision TCS of the device should signal an alarm.
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MRI4
DOK-HB-MRI4-2E
Summary of Contents for highprotec MRI4
Page 1: ...Manual Feeder Protection MRI4 Software Version 3 4 a DOK HB MRI4 2E Revision C English...
Page 43: ...Installation and Connection 43 MRI4 DOK HB MRI4 2E...
Page 46: ...Installation and Connection Ensure the correct tightening torques 46 MRI4 DOK HB MRI4 2E...
Page 69: ...Navigation Operation Navigation Operation 69 MRI4 DOK HB MRI4 2E 1 2 3 5 7 6 8 10 9...
Page 353: ...Device Parameters 353 MRI4 DOK HB MRI4 2E...
Page 373: ...373 MRI4 DOK HB MRI4 2E...