GE ZBTSD manual 1600-4000 AMP

Page 26

Sequence of Operation (cont’d)

1600-4000 AMP

1) Automatic

a) Manually operated Bypass Switch contacts (BN/BE) are open and ATS is supplying load.

b) Disconnect Switch (DS) is in Auto.

2) To Bypass ATS

a) Open bottom cabinet door and turn DS to Inhibit. b) Turn Bypass Selector Switch (BSS) to same power

source as ATS

c) Position manual bypass handle (MBH) upward.

3) To Test ATS

a) Bypass per above instructions.

b) Rotate crank mechanism counter-clockwise until ATS test light is illuminated.

c) Turn DS to Auto.

d) Test Switch (TS) on bottom cabinet door will allow electrical operation of ATS.

4) To Isolate ATS

a) Bypass per above instructions.

b) Rotate crank mechanism counter-clockwise until ATS Isolated light is illuminated.

5) To Remove ATS

a) Bypass and isolate per above instructions. b) Disconnect multipin plugs and external

connections to ATS.

c) Slide four corner latches of ATS to innermost position.

d) ATS can now be removed from cabinet.

6) To Reconnect ATS

a) Roll cart back into cabinet.

b) Slide four corner latches of ATS to outermost position.

c) Turn DS to Inhibit.

d) Manually position ATS into same source as Bypass Switch.

e) Reconnect multipin plugs and external connections to ATS.

f) Rotate crank mechanism clockwise until ATS Test light is illuminated.

g) Turn DS to Auto and use TS to electrically

operate ATS.

Figure 14

h)Turn DS to Inhibit.

i)Rotate crank mechanism clockwise until ATS location pointer is aligned with Auto mark on location indicator. (ATS must be in same source as Bypass.)

j)Turn DS to Auto and open Bypass with MBH.

k)ATS is now fully automatic.

Notes:

1.DS in Inhibit will prevent ATS electrical operation.

2.DO NOT use excessive force on mechanical handles.

3.Figures depict Bypass Source 1. Sequence is the same for Bypass Source 2.

4.When ATS is in Test or Isolate, Bypass Switch is a manual transfer switch to either available source (indicated on light panel).

5.To operate Bypass Switch when ATS is in Test or Isolate:

a)Move MBH downward (to open Bypass Contacts BN/BE)

b)Turn BSS to opposite power source.

c)Move MBH upward to close into selected power source.

Legend:

1.BP - Bypass switch (indicated by contacts BN/BE) is a three position switch.

2.ATS - Automatic Transfer Switch.

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ZBTS / ZBTSD Operation and Maintenance Manual (71R-4000A)

GE Zenith Controls

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Contents
GE Zenith Controls Introduction Authorized ServiceTable of Contents Final Equipment Inspection SafetyEquipment Inspection and Storage MountingEngine Start Control Connections InstallationPower Connections Installation cont’d IInitial EnergizationInitial Energization cont’d R E T E S TInstallation cont’d Entelli-Switch 250 Controller Entelli-Switch 250 ControllerEntelli-Switch 250 Controller cont’d LCD & KeypadUser Setting for Voltage & Frequency Standard 3-Phase Sensing on 3 and 4 Pole Units SourceAccessory Group Packages Stds Exes Cons Sens Spes PsgsCalibrate Accessory DefinitionsA62 Accessory Definitions cont’d S13P R50S12P S14How to Set the System Clock UMDCDT One Event Timer Exerciser Load / No-LoadCDP Clock Exerciser Load / No-Load Clock ExerciserEntelli-Switch 250 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuEntelli-Switch 250 User Setup SET Menu Change adjustable values through the SET menuEntelli-Switch 250 User Setup System Info View System DataDelayed Transition TestingATS Testing Standard TransitionTimer Designations as they appear in the SET menu Sequence of OperationSequence of Operation cont’d Bypass-Isolation Operation100-400 AMP Automatic600-1200 AMP 1600-4000 AMP Controls Power Supply CPS Standard and Delay TransitionDelayed Transition CPS Schematic Controls Power Supply CPS cont’dStandard Transition CPS Schematic Troubleshooting and Diagnostics General TroubleshootingTesting Maintenance and TestingInspection and Cleaning ServicingPage GE Zenith Controls