70055MP Revision D February 3, 2000
Appendix C: Glossary of Terms A Amperes.
Alarm Operating condition occurring when data point value exceeds
the alarm parameter set point.
Averaging Interval Configurable time period, up to 60 minutes, when the monitor
automatically takes incoming data levels and transfers them
into memory.
Calibration Parameters Calibration setpoints for voltage, current, temperature,
combustible gas, and tap position.
Clear Memory Action removes the monitored input data from the monitor non-
volatile memory.
COM Serial communication port on a personal computer.
Combustible Gas Fault gas in the dielectric oil.
CPU Central Processing Unit.
CT Current transducer.
Download Command that transfers data stored in memory from the monitor
to a personal computer.
Gland Plate Assembly with pre-punched holes, used for routing cables and
conduits into the monitor.
Event Tap change time period.
I/O Input/Output.
LTC Load Tap Changer installed on the transformer.
mA Milliamperes.
Profile Data Recording
Mode Method in which data is stored and updated in the monitor
memory.
Relay Parameters Parameters for transformer control relay and cam signals.
Remote Site Transformer location – substation.
Rms Root mean square of a number.
RTD Resistance temperature detector.
Settable Parameters Alarm level parameters for sensor inputs.
Tap Position LTC tap location.
Upload Command that transfers alarm parameters and site description
information to the monitor.
VAC Volts alternating current.
VDC Volts direct current.