OPERATION |
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Step Sixteen |
| Functional Chart for Relay On/Off Operations |
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| Backup | |
Duplexing | Primary | |
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Control |
| Stop |
Operation |
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| Relay 1 | Energize |
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| Relay 2 | Energize |
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| Backup | |
Alternating | Primary | |
Control |
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Operation |
| Stop |
| Relay 1 | Energize |
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| Relay 2 | Energize |
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| Start |
Automatic |
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Empty |
| Stop |
Operation |
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| Relay X | Energize |
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| Stop |
Automatic |
| Start |
Fill |
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Operation |
| Energize |
| Relay X | |
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| High |
Out of |
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Bounds |
| Low |
Operation |
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| Relay X | Energize |
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