Eaton Electrical manual Fixed Switching Device for the Magnum Transfer Switch

Fixed and Drawout Magnum Transfer Switches

Figure 7. Fixed Switching Device for the Magnum Transfer Switch.

Figure 9. Drawout Switching Device Fully Extended from the Magnum Transfer Switch.

1.3.3 Magnum Fixed Switching Devices

The Magnum fixed type switching device differs from the drawout version in that it has no levering device, primary disconnects, and secondary disconnects.

Figure 8. Drawout Switching Device Installed in the Magnum Transfer Switch.

1.3.2 Magnum Drawout Switching Devices

The Magnum drawout switching device is a design having three positions with the compartment door closed (CONNECT, TEST, DISCONNECT) and one position out of its compartment on the extendable carriage rails (REMOVE). The Magnum drawout switching device is equipped with both primary and secondary dis- connects to provide for the drawout functioning. The operating mechanism is a two-step, stored energy mechanism, either manu- ally or electrically operated. When withdrawn on the extendable carriage rails, Magnum switching devices can be inspected, acces- sory items added, and minor maintenance performed. The inside of the compartment can also be inspected with the switching device withdrawn on the extendable carriage rails.

PRIMARY CONNECTIONS

SECONDARY CONNECTIONS

Figure 10. Primary and Secondary Connections on a Magnum Fixed Switching Device.