Eaton Electrical Magnum Transfer Switch manual Voltage Selection Adjustment

Page 19

Instructional Booklet

Fixed and Drawout Magnum Transfer Switches

Effective: March 2007

Page 19

4.6 Voltage Selection Adjustment

Certain devices, such as the voltage selection panel, sensing relays, and timers need to be set and/or calibrated prior to placing the transfer switch equipment into service. Adjustments for logic

devices are described in the separate instructional document dedi- cated to the specific logic being used. Voltage selection adjust- ments are described here

SECONDARY TERMINALS

7

120V.1.5A

 

 

 

 

 

 

 

 

 

 

7

8

9

10

 

 

 

 

 

 

 

 

 

 

 

 

 

TOP:

8

 

 

 

 

 

 

 

 

 

 

 

5-

 

 

 

 

 

 

 

 

 

 

 

 

BOTT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

OM:

480V

 

3-

 

 

120V

 

21A

 

 

 

 

 

 

 

600

1

 

 

0.

10

 

 

 

 

 

 

 

208V

 

 

 

 

 

 

 

 

 

 

 

 

6-

 

V

4-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMM

ON

 

 

 

 

 

 

 

 

 

 

240V

2-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

3

PRIMARY

1

TERMINALS

6

4

2

600V

6

 

480V

5

7

 

240V

4

SECONDARY 1

120V, 300VA

 

 

208V

3

INTERMITTENT 50%

DUTY CYCLE

 

 

120V

2

8

9

 

 

60Hz

 

SECONDARY 2

 

 

120V, 25VA

 

 

10

0V

1

 

Figure 21. Voltage Selection Adjustment.

WARNING

DISCONNECT ALL SOURCES OF POWER OR DISCONNECT P7/S7 PRIOR TO PERFORMING THE FOLLOWING. FAILURE TO DO SO MAY CAUSE SERIOUS INJURY OR DEATH.

•Remove the transformer pack cover by loosening the 4 screws located at each corner of the transformer pack assembly.

•The transformers are factory set on the 600 volt tap. (See illus- tration above for location of various taps and voltages)

•Detach the spade connector from the 600 volt tap and place on the tap that is suitable for your application.

.

CAUTION

BE SURE THAT THE CORRECT VOLTAGE IS SELECTED TO MATCH THE SYSTEM VOLTAGE. AN IMPROPER SELECTION AND/OR CON- NECTION COULD RESULT IN EQUIPMENT DAMAGE.

•After changing the taps on both transformers, replace the trans- former pack cover and tighten all four screws.

4.7Mounting the Switching Device in the Drawout Mechanism

In structures equipped for drawout circuit breakers, a bolted-in cassette with movable extension rails supports the circuit breaker (Figure 22). The extension rails must first be pulled all the way out. Once the rails are fully extended, the circuit breaker can be carefully placed on the extension rails.

Figure 22. One Side of Drawout Circuit Breaker Properly Seated on Extension Rails.

IB01602011E

For more information visit: www.Eaton.com

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Contents Testing and Problem Solving Maintenance Renewal Parts Guide Manual for the Fixed and Drawout Magnum Transfer SwitchesInstructional Booklet Introduction Preliminary Comments and Safety PrecautionsGeneral Information Design Configuration Typical Load Transfer Switch Switching Device Type SchematicWithstand Ratings Typical Bypass Isolation Switch SchematicMagnum Transfer Switch Configurations Magnum Fixed and Drawout Switching DevicesGeneral Magnum Switching Device Fixed Switching Device for the Magnum Transfer Switch Transfer Switch Catalog Number Identification Transfer Switch Catalog Number Explanation Using the Style Identification GuideEquipment Description Receiving, Handling, and StorageSwitch Interlocks Open Transition Only Power PanelDrawout Interlocks Left Side View with Panels Removed Logic Panel Voltage Selection PanelDrawout Mechanism Neutrals FeaturesRelay Auxiliary Contacts Enclosure Transfer Switch Equipment EnclosuresStandards Installation and WiringMounting Location Seismic Tested and Approved Product Mounting Instructions Unpackaging and Inspection Mounting ProcedureWire Size for Available Power Cable Connections Power Cable ConnectionsMounting the Switching Device in the Drawout Mechanism Voltage Selection AdjustmentOperation WiringEngine Start Connection Close Switch by Pushing Close Button Automatic Transfer SwitchInstalling a Drawout Switching Device Drawout and Fixed Switching DevicesSwitching Device Positioning Switching Device in the Connect Position Levering and Position Indication Fixed Switching DeviceSwitching Device Operation Operation of the Bypass Isolation Transfer SwitchOperator Panel Source 2 to Source 2 Bypass Bypassing the Transfer SwitchAutomatic Operation Source 1 to Source 1 BypassInto Its Source 2 to Source 1 Bypass Open Transition Only Problem Solving Testing and Problem SolvingManual Operation When in Bypass Mode TestingTransfer Switch Will Not Automatically Transfer to Source Transfer Switch Appears InoperativeTransfer Switch Will Not Automatically Recharge Switches Introduction MaintenancePeriodic Maintenance Procedures Maintenance ProceduresCover Removal and Replacement Cover Removal and ReplacementRenewal Parts Guide Instructional Booklet Sensing Harness TSMGH02 Kcmil Neutral Terminal Instructional Booklet

Magnum Transfer Switch specifications

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