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 TM 55-1905-223-24-6
GLOSSARY - CONT
Section II. DEFINITIONS
AMBIENT TEMPERATURE
-
The atmospheric temperature of the immediate surrounding area.
ANODS
-
Active metals such as zonc and magnesium which, when
attached to steel or other metal in a water environment, prevent
the corrosion of the metal. The anodes corrode and are sacrificed
instead of the steel.
ANTIFREEZE
-
A solution which, when mixed with water, lowers the freezing point.
ALTERNATING CURRENT
-
Electrical current which repeatedly varies from zero to a positive
maximum value to zero to a negative maximum value and back to
zero at a periodic rate. Since the applied voltage continuall
reverses polarity, the resultant current flow alternates in direction
within the circuit.
AIR CAP
-
The radial space between the rotating and the stationary
elements of a generator. The magnetic field passes through this
space.
-
An instrument designed to measure electric current.
AMP
-
An abbreviation for the term Ampere.
AMPERE
-
The unit of measure of electrical current flow. One ampere of
current will flow when one volt of electrical potential is applied
across one ohm of resistance.
CAPACITOR
-
A device possessing the property of capacitance. A typical
capacitor consists of two conducting surfaces separated by an
insulating material. A capacitor stores electrical energy, blocks
the flow of dc, and permits the flow of ac to a degree largely
dependent on the capacitance and the frequency of the applied ac.
CIRCUIT
-
An electrical path through which an electric current may flow from
a voltage or complete circuit is one where current is flowing. An
open circuit is one where the path has been disrupted, such as an
open switch or circuit breaker, thus stopping current flow.
CIRCUIT BREAKER
-
A protective device for opening a circuit when current when
current flow exceeds a predetermined value.
Glossary 3
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