Briggs & Stratton 252700 Spezifikationen PDF herunterladen (Seite 47)

core: The laminations in the generator constituting

the magnetic structure thereof.

cradle: The metal frame that surrounds and protects

the generator/engine.

current: The ow of electrons moving past a point

in a circuit.

cycle: One complete wave of alternating voltage

that contains 360 degrees.

DC amperage test: A test that uses a digital

multimeter or other suitable test instrument to

indicate the current that should enter the battery if

all connections to the battery are good.

depletion region: The region of a diode which

separates P‑type material and N‑type material.

digital multimeter (DMM): A test tool used to

measure two or more electrical values.

diode: An electrical semiconductor device that can

be used to convert AC to DC.

direct current (DC): The ow of electrons in one

direction only.

dynamo: A machine for converting mechanical

energy into electrical energy by electromagnetic

induction – a generator.

eddy current: Undesirable current induced in the

metal structure of an electrical device due to the rate

of change in the induced magnetic eld.

electrical symbols: Graphic illustrations used in

electrical system diagrams to show the function of a

device or component.

electricity: Energy created by the ow of electrons

in a conductor.

electric starting system: A group of electrical

components activated by the operator to rotate the

crankshaft when starting an engine.

electro-motive force (EMF): The force which

causes current to ow in a conductor; in other words,

the voltage potential.

electrolyte: A mixture of water and sulfuric acid

(H2SO4) used in a lead‑acid battery.

electrons: The parts of an atom that have a negative

electrical charge

free electron: An electron that is capable of jumping

in or out of the outer orbit.

frequency: 1. The number of complete electrical

cycles per second (cps).

full-wave rectication: The process of rectifying

AC and recovering the B‑ pulse of AC that the diode

blocks.

full power outlet: Enables you to draw the full power

of the generator out of one outlet.

fuse: An excess current protection device with a thin

metal strip that melts and opens the circuit when a

short circuit or excess current condition occurs.

G – I

generator: An electrical device that produces an AC

sine wave as a wire coil is rotated in a magnetic eld

or as magnets are rotated inside a wire coil.

ground: A connection, intentional or accidental,

between an electrical circuit and the earth or some

conduction body serving in the place of the earth.

half-wave rectier: An electronic device used in a

charging system that converts AC to DC by blocking

one-half of the AC sine wave to allow current to ow

in only one direction.

hertz (Hz): The international unit of frequency equal

to one cycle per second.

horsepower (HP): A unit of power equal to 746

watts (W) or 33,000 lb.‑ft. per minute (550 lb.‑ft. per

second).

idle control: A system that controls the idle speed of

the engine in direct relation to the electrical load.

ignition armature: A component containing two or

more coils which, when acted upon by a magnetic

eld, induces electrical energy.

ignition coil: A device used to supply DC voltage to

the spark plugs.

ignition system: A system that provides a high

voltage spark in the combustion chamber at the

proper time.

induction: The production of voltage and current

by the proximity and motion of a magnetic eld or

electric charge.

induction principle: A theory which states that with

a conductor, any one of the following (current, a

magnetic eld, or motion) can be produced by the

remaining two.

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