Tenaga Nasional Berhad

GLOSSARY AND DEFINITIONS
In this guideline, the following words and expressions shall bear the following meanings:
Active Energy
Active Power
Adequate / Adequacy
Apparent Power
Automatic Voltage Regulator
Capacitor Bank
Capacity
Connection Point
Consumer
Contingency
Current Harmonic Distortion
The electrical energy produced, flowing, or supplied by an electric
circuit during a time interval, being the integral with respect to
time of the instantaneous power, measured in units of watt-hours
(wh) and multiples thereof.
The product of voltage and the in-phase component of alternating
current measured in units of watts and multiples thereof.
The ability of the distribution system to provide acceptable and
continuous supply while remaining within component ratings
during contingencies.
The product of voltage and of alternating current measured in units
of volt amperes. Is also the square root of the sum of the squares of
the active power and the reactive power.
A System for controlling generating unit or transformer voltage
within setlimits.
Electrical equipment used to generate reactive power and support
voltage levels on distribution and transmission lines in periods of
high load.
The net MW and MVAr capacity of a generating unit, or any other
transmission/distribution apparatus at a particular time, to supply
electrical energy.
The agreed point of supply established between a distributor and
other entity.
A person who engages in the activity of purchasing energy supplied
through a Transmission or distribution system; and/or the final end
User of energy.
In respect of a transmission or distribution network, a sequence of
related Events which result in outages of one or more transmission
or distribution elements.
It is the measure of the departure of the a.c. current waveform
from sinusoidal shape, that is caused by the addition of one or
more harmonics to the fundamental.
TENAGA
NASIONAL B E R H A D
63