Figure 18 load on one system to continuous tie, Operating instructions 36, Legend: m – Liebert Series 610 User Manual

Page 40: Module ss, Static bypass switch, Tie closed to: continuous tied systems, From: one system in bypass mode tie open

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Operating Instructions

36

Figure 18 Load on one system to Continuous Tie

Figure 19 One system in bypass to both feeders combined on remaining operational system

See 4.2.11 - Tying the UPS Systems - Continuous

Parallel Operations.

LEGEND: M

x

= Module

SS

x

= Static Bypass Switch

M

1

M

1

SS

1

SS

2

M

2

M

2

System 1

System 2

Load 1 Load 2

Tie

Tie Closed

TO:

Continuous Tied Systems

M

1

M

1

SS

1

SS

2

M

2

M

2

System 1

System 2

Load 1 Load 2

Tie

Tie Closed

FROM:

Combined Loads Operation

Momentary Tie

for transfer of

Load 2 to System 1

M

1

M

1

SS

1

SS

2

M

2

M

2

System 1

System 2

Load 1 Load 2

Tie

FROM:

One System in Bypass Mode

Tie Open

See 4.2.3 - Maintenance Procedures - Isolating Each

UPS System.

LEGEND: M

x

= Module

SS

x

= Static Bypass Switch

M

1

M

1

SS

1

SS

2

M

2

M

2

System 1

System 2

Load 1 Load 2

Tie

Tie Closed

TO:

Combined Loads Operation

Momentary Tie

for transfer of

Load 2 to

System 1

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