Alternative energy glossary. (The Solar Cowboy).

From: Countryside & Small Stock Journal | Date: September 1, 2003| Author: | Copyright information

Single quadrant: Power is taken from a voltage source, delivered to a load. Power does not go back to the voltage source.

Example: Current flows from the voltage source to the load, only. Current flows from a battery to a motor. The motor cannot operate as a generator, and has to coast to a stop.

Two quadrant: Power is taken from a voltage source, delivered to a load, or vice versa.

Example: Current flows in both directions. Current flows from or to a battery when connected to a DC motor that runs in only one direction. The motor can operate as a motor or generator, ...

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