ABB GFD563A101 3BHE046836R0101 Operation Sequence
Pre-Operational Checks
-
Safety Verification
- Confirm isolation of CT/VT circuits (test blocks engaged)
- Grounding applied via test port TP-X3 (≤5Ω resistance)
- Disable all tripping outputs (Front panel “BLOCK” LED illuminated)
-
Hardware Inspection
plaintextCopy CodeLED Status Validation:
POWER: Steady green
COM ACT: Flashing amber (IEC 61850-8-1 communication active)
ALARM: Off
Startup Procedure
Step 1: Parameter Initialization
1. Access relay via DIGSI 5 (v7.90+)
2. Load settings file: GFD563A101_BaseSettings.sid
3. Configure:
• Generator rating: __MVA
• CT ratio: ___/5A
• VT ratio: ___/110V
4. Set system frequency: 50/60Hz
Step 2: Function Enablement
| Function Group | Default State | Operational Command |
|---|---|---|
| 87G (Gen Diff) | Enabled | PROT>87G>BLOCK=OFF |
| 51V (Volt-Rest O/C) | Disabled | PROT>51V>ENABLE=ON |
| 64G (Ground Fault) | Enabled | Verify 3I₀ > 0.1In |
Functional Testing
Method A: Secondary Injection (Recommended)
1. Connect Omicron CMC 356:
- I∠0° to Terminals X1.1-X1.2 (Phase A)
- V∠0° to X2.1-X2.3 (Gen Voltage)
2. Execute test sequence:
[Test 1]: 120% Iₙ ∠0° → 51V trip in 650ms ±20ms
[Test 2]: 30% I₅₇N ∠-45° → 64G trip in 35ms ±2ms
3. Validate LED: "TRIP" red + LCD event log entry
Method B: Primary Injection
[Requirements]
Test_Set = Megger TPR1800
Safety_Clearance = 1.5m (arc flash boundary)
Procedure:
1. Energize generator at 10% Vₙ
2. Apply 150% I₅₇N via primary injection
3. Verify 87G restraint characteristic: I_diff/I_bias ≤ 0.25
Commutation to Live Operation
1. Remove test blocks:
- CT shorting links (X1.11-X1.12)
- VT grounding links (X2.7-X2.9)
2. Enable outputs:
HMI → "CONTROL" → "RELEASE BLOCKING"
3. Monitor:
• Real-time measurements: |V_L-L|, ΣI, f
• Harmonics: THD-V < 3%
Critical Alarms & Responses
| Alarm Code | LCD Message | Corrective Action |
|---|---|---|
| F017 | CPU A/B COMM FAULT |
Cycle DC supply ≥10s |
| F122 | SAMPLING ASYNC |
Verify CT polarity |
| F309 | IEC61850 COMM LOSS |
Check GOOSE subscription |
Safety Interlocks
MANDATORY ACTIONS BEFORE MAINTENANCE
- Apply virtual blocking:
textCopy Code
SBO>PROT>GLOBAL_BLOCK=ON
- Install mechanical lock (ABB LT563) on rack handle
- Confirm outputs de-energized:
- Terminal X5.1-X5.2: <1V AC/DC
Post-Operational Verification
1. Download disturbance records:
*.dft files via FTP (port 21)
2. Validate sequence of events (SOE):
Time tagging accuracy ≤1ms
3. Print protection coordination report:
Settings → Reports → ANSI C37.90ABB GFD563A101 3BHE046836R0101 PDF
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