AVTMTTR310 Rev 8 May 2016
117
Glossary
Use only in accordance with instruction manual.
Protective ground (earth) terminal is the wing nut for connecting the test
set to earth ground.
ANSI American National Standards Institute
BCT Bushing current transformer
CEI/IEC The initials of the official French name, Commission Electrotechnique
Internationale, of the International Electrotechnical Commission.
Centiradian Phase display option in SYSTEM SETUP screen. 1 centiradian =
0.573 degrees.
CT Current transformer
LCD Liquid crystal display
LTC Load tap changer. A selector switch device used to change transformer
taps with the transformer energized and carrying full load.
Safety ground
stick
An insulated stick (sometimes called a hot stick) with a hook type
electrode connected to ground via an insulated cable. In some
discharge sticks, a resistor is connected between the electrode and the
ground cable. Both are used to discharge capacitive specimens by
providing a low-impedance path to ground. They must be suitable
rated for the voltage and capacitance of the specimen to be discharged.
transient A change in the steady-state condition of voltage or current, or both.
TTR Transformer turn ratio; a registered trademark of Megger.
turn ratio The ratio of the number of turns in a higher voltage winding to that in
a lower voltage winding.
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