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| Operating Instructions |
Figure 12 Transfer both load feeders to one UPS |
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Normal Operation | Combined Loads Operation | ||
System 1 | System 2 | System 1 | System 2 |
M1
M1
SS1
SS2
M2
M2
M1
M1
SS1
SS2
M2
M2
Tie Open |
| Momentary Tie |
| Tie Closed |
| for transfer of |
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Tie | Load 2 to | Tie | ||
Load 1 | Load 2 | System 1 | Load 1 | Load 2 |
See 4.2.4 - Isolating a UPS System for Maintenance - | LEGEND: Mx = | Module |
Combined Loads Operation. | SSx = | Static Bypass Switch |
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Figure 13 Both feeders on one system to normal operation |
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M1
FROM:
Combined Loads Operation
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M2
M1
TO:
Normal Operation
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Load 1 | Load 2 | Load 1 | Load 2 |
See 4.2.6 - Returning an Isolated System to Normal | LEGEND: Mx = | Module |
Operation - End Combined Loads Operation. | SSx = | Static Bypass Switch |
Figure 14 Transfer 100% load on one system to 100% load on a second system (a two-step operation)
FROM:
Combined Loads Operation on System 1
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M1 |
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TO:
Combined Loads Operation on System 2
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Tie Closed
Tie
Load 1 Load 2
Momentary Tie for transfer of Load 2 to System 2, then Momentary Tie for transfer of Load 1 to System 2
Tie Closed
Tie
Load 1 Load 2
See 4.2.5 - Transfer of Load Between Two Systems. | LEGEND: Mx = | Module |
| SSx = | Static Bypass Switch |
34
