Load banks are typically custom made per application. Load elements consist of power resistors and inductors which are sized to match the required load points.

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Typical applications are for testing of Permanent Magnet generators, electric drives and other AC or DC electric power sources.

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Switching of different load points can be accomplished by electrical contacts (relays, contactors) or by solid state switches (power transistors). Selection can be manual or remote.

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Method of cooling and enclosure protection depend on application. Duty cycle and expected life of load bank are considered to optimize size and cost.

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Temperature protection, junction boxes, cables, meters and other features can be provided.