<previous  BASIC DC THEORY 16 next> DC EQUIPMENT CONSTRUCTION Direct current machines are energy transfer devices. These machines can function as either a motor or a generator. DC motors and generators have the same basic construction, differing primarily in the energy conversion. To better understand the operation and construction of DC machines, a few basic […]

<previous  BASIC DC THEORY 15   next> DC EQUIPMENT TERMINOLOGY Direct current devices are used frequently in today’s technology. Before the construction and operation of these devices can be introduced, a few common terms must be understood.   Terminal Voltage Terminal voltage, as applied to DC generators, is defined as the voltage that can be […]

 <previous  BASIC DC THEORY 14   next> BATTERY HAZARDS Because batteries store large amounts of energy, there are certain hazards that are associated with battery operation. These hazards must be fully understood to ensure safe operation of batteries.   Shorted Cell Cell short circuits can be caused by several conditions, which include the following: faulty […]