Emerson 7ACTB - Manuals - manualsarea.com

Page 2 - Remove the Shipping Skid; To prevent serious damage, remove three

SECTION 1 INSTALLATION 1 --- 1 The ASCO 7000 Series Automatic Closed–TransitionTransfer & Bypass–Isolation Switch (ACTB) consists ofan upper bypass–isolation switch, a transfer switch, amonitoring and transfer controller, and door–mountedcontrols. The ACTB is factory wired and tested.Installatio...

Page 3 - INSTALLATION; Wiring Diagram

INSTALLATION (continued) 1 --- 2 De–energize the conductors before making any line or auxiliary circuitry connections. Be sure that Normal and Emergency line connections are in proper phase rotation. Place engine gen- erator starting control in the OFF position. Make sure engine generator is not in ...

Page 4 - Wiring Diagrams; Section 3; – Voltage Checks; Use extreme caution when using a meter; Engine Control

INSTALLATION (continued) 1 --- 3 RED RED GREEN GREEN observe these lights RED RED RED Figure 1-3. Standard controls and indicators. Functional Test Read all instructions on the Wiring Diagrams and labels affixed to the ACTB. Note the control features that areprovided and review their operation befor...

Page 5 - – Electrical Operation; Transfer Test; automatic; Isolation Handle; TEST; Retransfer Delay Bypass; CONN; Bypass Handle

INSTALLATION (continued) 1 --- 4 RED RED GREEN GREEN observe these lights RED RED RED operate this switch Figure 1-4. Standard controls and indicators. 2 – Electrical Operation This procedure checks electrical operation of the ATS. Be sure to close the enclosure door before proceeding to prevent per...

Page 6 - SECTION 2 TESTING & SERVICE; TRANSFER TEST; trol; Auto; Electrical Operation – Transfer; PREVENTIVE MAINTENANCE; lubrication kit; REPLACEMENT PARTS; Return to Service

SECTION 2 TESTING & SERVICE 2--1 TRANSFER TEST Test the Automatic Closed–Transition Transfer Switch portion of the 7000 Series ACTB at least once a month. This procedure checks the electrical operation of the Transfer Switch and Control Panel. Turn the Engine Con- trol switch to Auto and put the...

Page 7 - MANUAL LOAD TRANSFER; CLOSED; MAINTENANCE HANDLE

TESTING & SERVICE (continued) 2--2 TROUBLE-SHOOTING Note any optional accessories that may be furnished on the ACTB and review their operation. Refer to any sepa- rate drawings and/or instructions that may be packed with the ACTB. Table 2-1. Trouble-Shooting Checks. Hazardous voltage capable of ...

Page 8 - SECTION 3 BYPASSING & ISOLATING; You can only bypass to the same source; To Bypass Normal Source*; ISOLATING

SECTION 3 BYPASSING & ISOLATING 3 --- 1 BYPASSING THE ATS* This procedure explains how to Bypass the closed automatic transfer switch contacts. Bypassing is required before the ATS can be tested or isolated. The Bypass Handle must be in the OPEN position (green indicator) and the Isolation Handl...

Page 9 - BYPASSING & ISOLATING; ISOLATING THE ATS; BYPASSING; energized through secondary disconnects.

BYPASSING & ISOLATING (continued) 3 --- 2 ISOLATING THE ATS Isolating is required before any service work can be performed on the automatic transfer switch (ATS). Refer to Figures 3–4, 3–5, 3–6, and 3–7. 1. Bypass the closed automatic transfer switch contacts. See BYPASSING on page 3–1. Align po...

Page 10 - RETURN TO SERVICE; NOTE

BYPASSING & ISOLATING (continued) 3 --- 3 RETURN TO SERVICE This procedure explains how to return the automatic transfer switch (ATS) to service after inspection and maintenance. Observe the Bypass Switch Position indica- tor and lights). Refer to Figures 3–7, 3–8, 3–9, and 3–10. 1. Slide the tr...

Page 11 - To Un–Bypass Normal Source*

BYPASSING & ISOLATING (continued) 3 --- 4 RETURN TO SERVICE continued* This procedure explains how to return the Bypass Switch Handle to the OPEN position. The Bypass Handle must be in the CLOSED position (yellow indicator on NOR- MAL or EMERGENCY ) and the Isolation Handle must be in the TEST p...

Page 12 - INDEX

INDEX Printed in U.S.A. Copyright ASCO Power Technologies, L.P. 2007 A Alarm Reset pushbutton, 1–4, 2–2auxiliary circuits, 1–2 B bus connections, 1–2bypassing the ATS, 3–1 C catalog number, covercleaning, 2–1closed–transition transfer, 1–4connections line, 1–1 controller disconnecting, 2–1 see Contr...