1.4(b) Load Flow Study
The power-flow study, also known as load-flow study, is an important tool involving numerical
analysis applied to a power system. A power-flow study usually uses simplified notation such as
a one-line diagram and per-unit system, and focuses on various forms of AC power (i.e.:
voltages, voltage angles, real power and reactive power). It analyzes the power systems in
normal steady-state,transient operation.
Power-flow or load-flow studies are important for planning future expansion of power systems as
well as in determining the best operation of existing systems. The principal information obtained
from the power-flow study is the magnitude and phase angle of the voltage at each bus, and the
real and reactive power flowing in each line.
Introduction
Prior to purchasing heavy or high-voltage electrical equipment (transformers, breakers, cables,
etc.), it is customary for plant owners, engineering firms, design firms, power utilities, etc. to
model their electrical system in a digital computer software for the purpose of equipment sizing
and performing various "what if" scenarios.This study can be used for studying
•
Model Verification and validation
•
Short Circuit Motor Starting
•
Protective devices
•
Arc Flash
•
Dynamic studies
•
Harmonic studies
PROLIANCE provides load flow studies using ETAP software provides an integrated facility to
create, maintain, track and revise your power system one-line diagrams and report generation in
E Tap
Relay Coordination Studies:
In any power system network, protection should be designed such that protective relays isolate
the faulted portion of the network at the earliest, to prevent equipment damage, injury to
operators and to ensure minimum system disruption enabling continuity of service to healthy
portion of the network. PROLIANCE provide solution for relay coordination using ETAP software
from the
power-flow study
is the magnitude
and phase angle
of the voltage at
each bus, and the
real and reactive
power flowing in
each line.
ENERGY/POWER QUALITY/SAFETY AND ENVIRONMENT SOLUTIONS
08
PROLIANCE ENERGY SOLUTIONS
