Eaton Electrical Magnum Transfer Switch manual Drawout and Fixed Switching Devices

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Instructional Booklet

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Effective: March 2007

Fixed and Drawout Magnum Transfer Switches

Section 6: Drawout and Fixed Switching Devices

6.1 Installing a Drawout Switching Device

In transfer switches equipped with drawout switching devices, bolted-in carriages with extendable rails support the switching devices.

Figure 26. Switching Device Drawn Out from the Transfer Switch.

To install a drawout switching device, the extendable rails must first be pulled all the way out. Once the rails are fully extended, the switching device can be carefully placed on the rails.

CAUTION

IT IS IMPORTANT TO TAKE GREAT CARE WHEN PLACING A DRA- WOUT SWITCHING DEVICE ON ITS EXTENDED RAILS. IF THE SWITCHING DEVICE IS NOT PROPERLY SEATED ON THE EXTEND- ABLE RAILS, IT COULD FALL FROM THE RAILS CAUSING EQUIP- MENT DAMAGE AND/OR BODILY INJURY.

Carefully lower the switching device onto the extended rails. Be certain that the switching device’s four molded drawout rail sup- ports are fully seated in the extendable rail cutouts on both sides (Figure28). Do not remove the lifting yoke from the switching device until it is properly seated on the rails.

Figure 28. Switching Device in the REMOVE Position.

Once the switching device is properly seated on the extended rails, the lifting yoke can be removed and the rest of the switching device installation procedure can be completed.

6.1.1 Switching Device Positioning

The Magnum drawout switching device has four normal positions:

•REMOVE (Withdrawn) (Figure 28)

•DISCONNECT (Figure 31)

•TEST (Figure 30)

•CONNECT (Figure 29)

The REMOVE position is a position outside the compartment on the carriages drawout rails where the switching device is not engaged with the levering mechanism. The DISCONNECT, TEST, and CONNECT, positions are reached by means of the levering mechanism.

With the switching device solidly positioned on the carriage’s extendable rails and the levering-in mechanism in the DISCONNECT position, carefully and firmly push the switching device into the compartment as far as it will go. The outer (recessed) portion of the switching device face plate should align with the GREEN target line (labeled DISC) on the inside top left wall of the carriage (Figure 32).

CAUTION

MAKE CERTAIN THAT THE SWITCHING DEVICE IS FULLY INSERTED INTO ITS COMPARTMENT BEFORE ANY ATTEMPT IS MADE TO LEVER THE SWITCHING DEVICE. ATTEMPTING TO LEVER THE SWITCHING DEVICE IN BEFORE IT IS FULLY POSITIONED INSIDE ITS COMPARTMENT CAN RESULT IN DAMAGE TO BOTH THE SWITCH- ING DEVICE AND THE COMPARTMENT.

Figure 27. Drawout Rail Supports Fully Seated in the Rail Cutouts.

For more information visit: www.Eaton.com

IB01602011E

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Contents Manual for the Fixed and Drawout Magnum Transfer Switches Testing and Problem Solving Maintenance Renewal Parts GuideInstructional Booklet Introduction Preliminary Comments and Safety PrecautionsGeneral Information Typical Load Transfer Switch Switching Device Type Schematic Design ConfigurationTypical Bypass Isolation Switch Schematic Withstand RatingsMagnum 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 Using the Style Identification Guide Transfer Switch Catalog Number ExplanationReceiving, Handling, and Storage Equipment DescriptionSwitch Interlocks Open Transition Only Power PanelDrawout Interlocks Left Side View with Panels Removed Logic Panel Voltage Selection PanelDrawout Mechanism Neutrals FeaturesRelay Auxiliary Contacts Transfer Switch Equipment Enclosures EnclosureStandards Installation and WiringMounting Location Unpackaging and Inspection Mounting Procedure Seismic Tested and Approved Product Mounting InstructionsPower Cable Connections Wire Size for Available Power Cable ConnectionsVoltage Selection Adjustment Mounting the Switching Device in the Drawout MechanismOperation WiringEngine Start Connection Automatic Transfer Switch Close Switch by Pushing Close ButtonInstalling a Drawout Switching Device Drawout and Fixed Switching DevicesSwitching Device Positioning Switching Device in the Connect Position Fixed Switching Device Levering and Position IndicationSwitching Device Operation Operation of the Bypass Isolation Transfer SwitchOperator Panel Source 1 to Source 1 Bypass Bypassing the Transfer SwitchAutomatic Operation Source 2 to Source 2 BypassInto Its Source 2 to Source 1 Bypass Open Transition Only Testing Testing and Problem SolvingManual Operation When in Bypass Mode Problem SolvingTransfer Switch Will Not Automatically Transfer to Source Transfer Switch Appears InoperativeTransfer Switch Will Not Automatically Recharge Switches Maintenance Procedures MaintenancePeriodic Maintenance Procedures IntroductionCover Removal and Replacement Cover Removal and ReplacementRenewal Parts Guide Instructional Booklet Sensing Harness TSMGH02 Kcmil Neutral Terminal Instructional Booklet

Magnum Transfer Switch specifications

The Eaton Electrical Magnum Transfer Switch is a premium solution designed for reliable power management in various applications, ranging from data centers to critical facilities. Known for its robust performance and advanced technology, the Magnum Transfer Switch ensures seamless transitions between utility and backup power sources, thereby enhancing operational continuity.

One of the standout features of the Eaton Magnum Transfer Switch is its unparalleled reliability. The switch is designed with heavy-duty components that provide up to 3,000 amps of continuous current with exceptional fault protection. Its construction is particularly suited for environments where power availability is crucial, ensuring that critical loads remain powered even during grid failures.

The Magnum Transfer Switch incorporates advanced technologies that simplify the operation and monitoring of power systems. It includes microprocessor-based controls that offer users customizable settings and configurations. These smart controls enable automatic transfer operations, ensuring quick response times when switching between power sources. The intelligent diagnostics feature further enhances reliability by offering predictive maintenance alerts, which help in identifying potential issues before they lead to failures.

Safety is a priority with the Magnum Transfer Switch. It is equipped with multiple interlocking features that prevent accidental switchovers and ensure that maintenance can be performed without the risk of electrical accidents. The design adheres to stringent safety standards, providing users with peace of mind.

Flexibility is another characteristic of the Eaton Magnum Transfer Switch. It offers a range of mounting options and configurations to fit diverse installation needs, whether in commercial infrastructures or industrial settings. The switch can be integrated with various power systems, making it a versatile choice for project developers and facility managers.

Additionally, the Magnum Transfer Switch supports eco-friendly initiatives through energy-efficient designs that minimize power loss during transfer operations. This feature is increasingly important as businesses aim to reduce their carbon footprint and enhance sustainability.

In summary, the Eaton Electrical Magnum Transfer Switch stands out for its reliable performance, advanced technologies, and robust safety measures. It is a versatile solution that meets the demands of modern power management, ensuring that critical systems operate continuously, even in the face of unexpected power interruptions. With its combination of efficiency, safety, and flexibility, the Magnum Transfer Switch remains a trusted choice for professionals in various industries.
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