RFL Electronics GARD 8000, Инструкция по эксплуатации

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Distance Relay Settings
GARD 8000 Distance Relay RFL Electronics Inc.
Description Range Units Step Default
81D-2 ROC frequency pickup
Pickup threshold for rate-of-change of frequency, step 2 -10 - -0.5 Hz/s 0.01 -1
81D-2 ROC frequency time delay
Pickup time delay for rate-of-change of frequency, step 2
0 - 300 s 0.01 0
81D-2 Dropout Time
Drop-out time delay for rate-of-change of frequency, step 2
0 - 300 s 0.01 2
81D-3 Frequency rate-of-change (ROC) enable
Enables rate-of-change of frequency, step 3
No - Yes - 1 No
81D-3 ROC underfrequency pickup
Pickup threshold for underfrequency for the rate-of-change of
frequency element, step 3
40 - 70 Hz 0.01 40
81D-3 ROC frequency pickup
Pickup threshold for rate-of-change of frequency, step 3
-10 - -0.5 Hz/s 0.01 -1
81D-3 ROC frequency time delay
Pickup time delay for rate-of-change of frequency, step 3
0 - 300 s 0.01 0
81D-3 Dropout Time
Drop-out time delay for rate-of-change of frequency, step 3
0 - 300 s 0.01 2
7.4 CURRENT ELEMENTS
7.4.1 DIRECTIONAL ELEMENTS
Description Range Units Step Default
67P Phase characteristic angle
Characteristic angle for phase directional elements 0 - 90 deg 1 45
67G Ground characteristic angle
Characteristic angle for ground directional elements 0 - 90 deg 1 45
67Q Negative sequence characteristic angle
Characteristic angle for negative sequence directional elements 0 - 90 deg 1 45
67P Minimum voltage
Minimum polarizing voltage threshold for phase directional
elements
0.05 - 10 V 0.01 0.2
67G Minimum voltage
Minimum polarizing voltage threshold for ground directional
elements
0.05 - 10 V 0.01 0.2
67Q Minimum voltage
Minimum polarizing voltage threshold for negative sequence
directional elements
0.05 - 10 V 0.01 0.2
Zero sequence voltage compensation
Sets a factor to amplify available zero sequence voltage
polarization level
0 - 50 - 0.01 0
Negative Sequence Voltage Compensation
Sets a factor to amplify available zero sequence voltage
polarization level
0 - 50 - 0.01 0
Loss of polarization block
Select whether to block overcurrent element when polarization
voltage is below set thresholds (Yes) or to allow the elements
to operate non-directional (No).
No - Yes - 1 No
67 transient block coordination time
This is a timer setting for transient block logic when the
directional overcurrent elements (50P and/or 50Q/G) are used
in a permissive pilot scheme.
0 – 30 ms 1 0
July 21, 2009 7-15 973.334.3100