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2. Transfer switch - Wikipedia

   en.wikipedia.org/wiki/Transfer_switch

   Simplified single line diagram of a single-phase transfer switch to select either 'city' (utility) power or local generator power 3-phase Intelligent transfer switch. A transfer switch is an electrical switch that switches a load between two sources. Some transfer switches are manual, in that an operator effects the transfer by throwing a ...

3. Single-phase generator - Wikipedia

   en.wikipedia.org/wiki/Single-phase_generator

   Elementary generator is an example of single-phase generators with two poles. Single-phase generator (also known as single-phase alternator) is an alternating current electrical generator that produces a single, continuously alternating voltage. Single-phase generators can be used to generate power in single-phase electric power systems.

4. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   Pole-mounted single-phase transformer with three-wire center-tapped "split-phase" secondary. On the three secondary terminals, the center tap is grounded with a short strap to the transformer case. A split-phase or single-phase three-wire system is a type of single-phase electric power distribution.

5. Alternating current - Wikipedia

   en.wikipedia.org/wiki/Alternating_current

   A schematic representation of long distance electric power transmission. From left to right: G=generator, U=step-up transformer, V=voltage at beginning of transmission line, Pt=power entering transmission line, I=current in wires, R=total resistance in wires, Pw=power lost in transmission line, Pe=power reaching the end of the transmission line, D=step-down transformer, C=consumers.

6. Single-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Single-phase_electric_power

   A single-phase polemount stepdown transformer in Canada. One supply phase (phase-to-neutral) from the utility is converted to split-phase for the customers. In electrical engineering, single-phase electric power (abbreviated 1φ ) is the distribution of alternating current electric power using a system in which all the voltages of the supply ...

7. Switch - Wikipedia

   en.wikipedia.org/wiki/Switch

   Single pole, single throw: One-way: Two-way: A simple on-off switch: The two terminals are either connected together or disconnected from each other. An example is a light switch. SPST-NO. Form A [4] Single pole, single throw, normally open A simple on-off switch. The two terminals are normally disconnected (open) and are closed when the switch ...

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Commutator (electric) - Wikipedia

   en.wikipedia.org/wiki/Commutator_(electric)

   For a single armature winding, when the shaft has made one-half complete turn, the winding is now connected so that current flows through it in the opposite of the initial direction. In a motor, the armature current causes the fixed magnetic field to exert a rotational force, or a torque , on the winding to make it turn.