Drive Comparisons

When comparing drives, factors to be considered include the following:

• Drive costs—both initial and operating cost. Cost considerations must include not only initial (installed) cost but also drive efficiency and power factor effects. Power factor may motor bus power supply motor bus power supply rectifier speed potentiometer

armature

FIGURE 14 Block diagram for dc motor with SCR power supply

Survival Treasure

Survival Treasure

This is a collection of 3 guides all about survival. Within this collection you find the following titles: Outdoor Survival Skills, Survival Basics and The Wilderness Survival Guide.

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