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I.L. 40-385.1B
1-10
(5/92)
Figure 1-5. MDAR Relay Program Functions
ESK00223 dtp
POWER
ON
-Initialization
-Self-Checks
Mode =
Background
START
Sample V and I
dc Offset
Correction
Compute V and I
Phasors Using
Fourier Algorithm
Mode?
Fault
Background
Disturbance
in
V or
Ι?
Mode =
Fault
Relaying Calculations:
Zone 1 and Pilot Zone
Pilot Logic and
Channel Control
No Fault for
3 Cycles ?
Mode =
Background
- Operator Panel
Interface
- Hardware Self-Checks
N
Y
N
Y
Relaying Calculations
- Zone 2
- Zone 3
- Out-of-Step Blinders
- Inst. Overcurrent
- Ground Backup
- Phase Selector
Checks and Logic
- Non-Pilot Trip Logic
- Loss-of-Pot. and Loss-of-Current
- Data Communications
- Contact Inputs
∆
•
•
∆
Содержание REL-300
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Страница 116: ...I L 40 385 1B 6 14 5 92 Figure 6 1 Test Connection for Single Phase to Ground Faults Sheet 1 of 4...
Страница 117: ...I L 40 385 1B 5 92 6 15 Figure 6 2 Test Connection for Three Phase Faults 1502B51 Sub 1 Sheet 2 of 4...
Страница 118: ...I L 40 385 1B 6 16 5 92 Figure 6 3 Test Connection for Phase to Phase Faults 1502B51 Sub 1 Sheet 3 of 4...
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Страница 135: ...I L 40 385 1B SD 6 5 92 Figure SD 2 MDAR Block Diagram sheet 1 of 1 Sub 1 1611C12...