For safety reasons, the control circuit operates at a lower voltage and current to reduce the shock hazard to the operator. The crane and hoist are run by a push button type control or radio remote used by the operator. Power circuit – provides energy to lift loads and run the motors that perform workĬontrol circuit – supplies power and includes circuitry to activate the devices that turn the main motors off and on. It consists of a movable bridge carrying a fixed or movable hoist mechanism and travels on an overhead runway structure. This cable reel is powering a below-the-hook magnetic lifting device.īefore we jump into the different types of electrification options for overhead cranes, let’s look at some definitions for terms that may be used throughout this article:Įlectric overhead traveling crane – electrically operated machine for lifting, lowering and transporting loads. Glossary of Terms Related to Overhead Crane ElectrificationĪ cable reel system (shown here), can be spring-driven or motorized to payout, retrieve, and store multi-conductor power cable. Identify what types of crane applications or environments each electrification system may be best suited for.Discuss the advantages and disadvantages of each crane electrification system.Explain how each crane electrification system works and lay out the different options available for each system.Breakdown and explain the three main types of overhead crane electrification:.
Define terms related to overhead crane electrification.With different types of electrification systems available, and different varieties that exist for each type of system, it can be difficult to determine which electrification method is best for powering your overhead crane.
There are three main types of overhead crane electrification: conductor bars, festoon systems (shown here), and cable reels.Īdmittedly, overhead crane electrification can be one of the more complex subject matters.
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