243Soft Loading Transfer System

When a closed- or open-transition transfer switch transfers load between sources, the load is applied in a block — the load on the switch is connected to the generator in one step. Generator sets are typically rated close to the demand of the load to be handled. When a load approaching the full load rating of the generator set is applied in one step, the generator's frequency will drop. In the worst case, the generator set may not recover, or, at best, loads may be disturbed by the dip. In such cases, a closed-transition transfer switch can be modified to allow soft loading, or ramping of the load from the utility to the engine-generator.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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