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Related Products: |
EAMA-001, EAMA-002, EAMA-003, EAMA-004, EAMA-005, EAMA-210, EGSA-310, EGSA-320, EXMC-001 |
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Related Documents: |
EZDP-2089, EZDP-2104 |
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Type: |
operations, reference information |
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Keywords/Labels: |
lines, bandwidths, average values, peak values |
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Summary: |
This topic provides reference information on monitored lines and bandwidths and how to calculate average and peak values. |
This section provides detailed technical information on the Generator Field Monitoring System capabilities and legal information.
Standard Data Collection
|
Monitored Line |
Bandwidth |
Attenuation Ratio |
|---|---|---|
|
Ground Current |
1 MS/s or 222 kHz |
30 A : 10 V |
|
Shaft Voltage |
1 MS/s or 222 kHz |
100 V : 10 V |
|
Exciter Shaft Voltage |
1 MS/s or 222 kHz |
100 V : 10 V |
|
Meter Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Ground Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Exciter Meter Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Rotor Flux |
100 kS/s or 22.2 kHz |
100 V : 10 V |
Burst Mode
|
Monitored Line |
Bandwidth |
Attenuation Ratio |
|---|---|---|
|
Ground Current |
20 MS/s or 500 kHz |
30 A : 10 V |
|
Shaft Voltage |
20 MS/s or 500 kHz |
100 V : 10 V |
|
Exciter Shaft Voltage |
20 MS/s or 500 kHz |
100 V : 10 V |
|
Meter Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Ground Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Exciter Meter Rope Wear Indicator |
100 kS/s or 22.2 kHz |
100 V : 10 V |
|
Rotor Flux |
100 kS/s or 22.2 kHz |
100 V : 10 V |
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Average voltages and currents are calculated on the samples taken during each snapshot as the sum of (x)/N, where x is the array of samples acquired, and N is the number of samples.
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Zero-to-peak voltages and currents are calculated on the samples taken during each 0.02 second period by the following formula:
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The longer-term averages are calculated by accumulating averages for the specified period. They are then reset in preparation for the next calculation. The formula used is as follows: