Siemens ET8 Series Dokumentacja Pobierz pdf (Strona 96)

SONAR—Sound Navigation and Ranging.

STAR CONNECTED—Shaped like the letter Y.

SUBMICRON—Less than one millionth of a meter.

SW/DW—Seawater/distilled water.

SYNCHRO—A small motor-like analog device that

operates like a variable transformer and is used

primarily for the rapid and accurate transmission

of data among equipments and stations.

TEMPERATURE GRADIENT—The rate of tem-

perature change between the primary inlet

temperature and the secondary outlet tem-

perature.

TEMPERATURE COEFFICIENT—The amount of

change of resistance in a material per unit of

change in temperature.

TRUE BEARING—Angle between a target and true

north measured clockwise in the horizontal

plane.

TRUE NORTH—Geographic North.

VENTURI-TYPE—Having a throat-like passage that

increases the velocity and lowers the pressure of

a fluid conveyed through it.

WATERBOX—A part of the heat exchanger, also

called the bonnet. Installed at the end of the

heat exchanger to access the tubes for cleaning.

WATT—International unit of power, equal to one

joule per second.

WYE CONNECTED—A three-phase connection in

which each winding is connected to a command

ground forming a connection that resembles the

letter Y.

ZINC ANODE—Disks, rods, bars, or plates made of

zinc metal and installed in the heat exchangers

water box.

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Siemens ET8 Series Dokumentacja Strona 96