Xantrex Technology RS3000 - Manual (Page 112)

Terminology
C–2 975-0170-01-01
Glossary
Absorption Charge
The second stage of three-stage battery charging. Voltage remains
constant and current reduces as the battery becomes charged. This
ensures complete charging.
Alternating Current (AC)
The type of electrical power supplied by the power utility or an
AC generator. The unique characteristic of this form of electricity
is that it reverses direction at regular intervals. For example, 120
VAC 60 Hz power reverses flow 60 times a second, hence the
rating 60 Hz (cycles per second).
Ambient Temperature
Refers to the air temperature around the inverter, which will affect
its output power.
Ampere (Amp)
A measurement of the flow of electrical current. One amp is equal
to the current that flows when one volt is acting across the
resistance of one ohm. (Ohm’s law: I = V/R where I=current,
V=volts, R=resistance)
Ampere Hour
(Amp Hour/Ah) One amp of electrical current flowing for one hour. One way to
measure the capacity of batteries.
Bulk Charge The first stage of three-stage battery charging. Current is supplied
to the batteries at a constant rate while voltage gradually rises.
Charger, DC A device that is used to replenish the capacity of a battery (its
“charge”) by supplying DC current to the battery.
Current The rate of flow of electrical charge measured in amps.
Direct Current (DC)
The type of electricity stored in batteries and generated by solar
electric devices. Current flows in a single direction without
alternating.
Disable
When a function is disabled, it is not allowed to occur and if it is
occuring, it is terminated. Regardless of other conditions, the
function will not be activated. For example, even if AC power is
present, if the charger is disabled, the unit will not charge. The
charger must be enabled. See “Enable” in the glossary.
Discharge Stored energy being released from a battery
Dual Input
The dual input has two line inputs, one neutral and one ground.
The voltage between each line and the neutral is 120 VAC. The
voltage between the two line inputs is 0 VAC. (Unlike the split
phase type, the two lines are in phase, not out of phase, with each
other.)