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Zenith Automatic Transfer Switch | new.abb.com/low-voltage
Table of Contents
Section 1: General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Section 3: Lifting, Mounting and Installation ATS & Bypass . . . . . . . . . . . . . . . 6
Unpacking the ATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Lifting and Mounting Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tools Needed for Installation and Maintenance . . . . . . . . . . . . . . . . . . 9
Power Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Section 4: Standalone ATS Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sequence of Operations – Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . 12
Sequence of Operations – Automatic Mode . . . . . . . . . . . . . . . . . . . . . 13
Section 5: Bypass Isolation ATS Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Sequence of Operations – Manual Mode – Isolation . . . . . . . . . . . . . . 21
ATS Sequence of Operations – Manual Mode . . . . . . . . . . . . . . . . . . . . 21
Bypass ATS Sequence of Operations – Racking Operations . . . . . . . . 22
Sequence of Operation – Automatic mode - Isolation ATS . . . . . . . . . 25