Omicron CIBANO 500 PTM - Page 196

CIBANO 500 PTM User Manual
196 OMICRON
2. Optionally, enter the advanced settings in the Advanced settings area.
Table 17-50: Advanced settings of the Dynamic Contact Resistance test
Setting Description
Main contact
PIR thresholds
1
Select Automatic if you want to let Primary Test Manager set the PIR
thresholds or select Custom to set the PIR thresholds according to your
needs.
If you select Automatic, Primary Test Manager fits the PIR thresholds as
follows:
• If the PIR value is not defined in the circuit breaker data, Primary Test
Manager sets the default values.
• If the PIR value is defined in the circuit breaker data, Primary Test
Manager sets the Close / PIR threshold to 75% of the PIR value and the
PIR / Open threshold to 125% of the PIR value.
C-O threshold
2
Resistance threshold to detect whether the main contact is open or closed.
Primary Test Manager interprets the contact as open if the contact
resistance is above the C-O threshold and vice versa.
Close / PIR threshold
PIR / Open threshold
1
Resistance thresholds for the PIR measurement
Primary Test Manager interprets the contact in the PIR state if the contact
resistance is above the Close / PIR threshold and below the PIR / Open
threshold.
Resistance threshold
3
Threshold value of the contact resistance for calculating the timing
characteristics of contacts with graphite nozzle
Spike compensation
3
Time interval for calculating the timing characteristics of contacts with
graphite nozzle
The contact is considered closed (C sequence) or opened (O sequence) if
the contact resistance stays in the threshold state within the spike
compensation interval.
Sine wave filter Select the Sine wave filter check box to suppress sinusoidal interference.
Start evaluation at Start time of the sine wave evaluation. Select the time at which the
sinusoidal interference is clearly present in the measurement signal.
Sine frequency Frequency of the sinusoidal interference
Other
Close breaker before
test
4
Select the Close breaker before test check box to automatically close the
circuit breaker 1 second before starting a measurement.
Sample rate
Measurement sample rate
5