OMICRON 147
Off-service diagnostic methods
Disconnection
For disconnecting the circuit breaker, see "Disconnection" on page 158.
17.1.7 Dynamic Contact Resistance test
The Dynamic Contact Resistance test is typically not done on MV circuit breakers and can be performed
only with the CB MC2 modules in connection with CIBANO 500. For more information, see
17.2.7 "Dynamic Contact Resistance test" on page 189.
Bounce time
1
Duration of the main contact bounce
Bounce count
1
Number of main contact bounces within the bounce time
PIR closing time Closing time for pre-insertion resistors
Assessment Measurement assessment
1. Only available for O and C sequences
Table 17-21: Coil characteristics
Data Description
Peak current Peak current value through a trip or close coil
Average current Average current through the coil (see Average coil current/voltage
settings in Table 17-16: "Advanced settings of the Timing test" on
page 142)
Average voltage Average voltage applied to the coil (see Average coil current/voltage
settings in Table 17-16: "Advanced settings of the Timing test" on
page 142)
Resistance Calculated resistance of the coil
Assessment Assessment of coil characteristics
Table 17-20: Main contact characteristics (continued)
Data Description
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