Siemens ET8 Series Especificações descarregar pdf (Página 95)

HERTZ—International unit of frequency, equal to

one cycle per second.

N

NAVSAT—Naval Satellite.

I

IMPINGEMENT—To have an effect on the

property or rights of another.

IN-PHASE—This term is applied to the condition

that exists when two of the same frequency pass

through their maximum and minimum values of

like polarity at the same instant.

I/O—Input/Output.

IOC—Input Output Controller.

J

JOULE—A unit of energy or work. A joule of

energy is liberated by 1 ampere flowing for 1

second through a resistance of 1 ohm.

JR—Junction Rotary switch.

K

KILOWATT—A unit of electrical power, equal to

1,000 watts.

NAVSTAR—Naval Global Positioning System

Satellite.

NAVSEA—Naval Sea Systems Command.

O

OPEN-LOOPED—One-pass, a seawater system in

which the seawater flows through the system

only once.

P

PBI—Push-button indicator.

PITCH—Degree of slope or inclination.

POLY-PHASE—Having, generating or used in

generating currents consisting of three or a

multiple of three phases.

PM—Planned Maintenance.

PMS—Planned Maintenance System.

PSIG—Pounds-per-square inch gage.

L

R

LINEAR—Straight line relationship where changes

in one function are directly proportional to

changes in another function.

LINES OF FORCE—A line in an electric or

magnetic field that shows the direction of the

force.

M

MAKEUP WATER—Distilled water that is added

to the expansion tank when level becomes too

low.

MERIDIAN—True North.

MICRON—A unit of length equal to 10

4

meter.

Also called a micrometer.

MRC—Maintenance Requirement Card.

RADAR-Radar Detection and Ranging.

REQ—Request.

ROLL—To move gently around and around or from

side to side.

S

SEAWATER—Water that is drawn from the sea by

the ship.

SERVO—A device used to convert a small

movement into one of greater movement or

force.

SINGLE-PHASE—Having, generating, or using a

single alternating current, either in phase or

180° out of phase.

AI-3

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