A power system analysis comprises a number of technical evaluations as well as the use of scientific analytical ideas and techniques to verify that your facility’s power system is safe, effective, and reliable under both normal and unforeseen conditions. The objective of a power system analysis is to comprehend how a system will act in different configurations and how disturbances, such as capacitor switching, the start of a big motor, and arc flash energy, would affect it.
To verify that safety equipment performs effectively in the event of a short circuit or other failure, it may be necessary to conduct an examination of the power system. Power systems must be researched to provide a continuous and reliable electrical supply. A power system that is well-designed assures dependable operation and maximizes plant utilization in all operational conditions. Poorly constructed systems are marked by outages, defects, inefficiency, and diminished security.
The following small studies may be included in a study of a typical power system:
This blog will examine the first three studies. and understand the applicable regulations and procedures for each of these queries.
A load flow study investigates an electrical network to learn the flow direction of power. It helps find the efficiency of the power system and the amount of active and reactive power generated, as well as losses, voltage, current, and power factor.
The load flow study included three components:
There are three ways to determine power system information:
A short circuit analysis will examine one or more of the following types of short circuits:
Creating a one-line diagram of the power distribution system will be simple after the sort of problem has been found. Utilize the created single-line diagram and an impedance diagram with numerical values for the utility source, transformer, and conductor in relation to the voltage that each section may consume to calculate short circuits. It is possible to figure out the short circuit current, transformer multiplier, and full-load amps. It is essential to compare the findings to the equipment ratings in order to ensure that the power distribution system has the necessary safety measures in place at various places to prevent accidents and downtime.
Relay coordination is a crucial part of power system safety design because coordination systems guarantee that relays work quickly, reliably, and selectively to isolating the problem. Coordination analysis is utilized to calculate the number of overcurrent protection devices needed in a power system. It also helps find the requirements, arrangements, and sizes necessary to achieve a compromise between ensuring equipment safety and limiting system operation.
Using software such as ETAP (Electrical Transient Analysis Program), which is designed to simulate the power system, data collection activities are carried out. After a short circuit analysis is performed, the fault currents at each electrical location are measured. The protective devices are then selected and configured to limit the impact of equipment failures inside the system. The time-current characteristic curves of the protective device are checked and compared to detect locations where coordination has failed. Adjustments are made as necessary to ensure that protective devices function consistently and selectively.
CareLabs offers Load Flow analysis, Short Circuit analysis, and Relay coordination analysis to watch the voltage at various buses as well as the actual and reactive power flow between buses, analyze the system under various fault conditions, and find how well the system handles small and substantial changes. If your firm in Philippines need a power system audit, please contact us or get a quote. One of our customer service specialists will call you within 24 hours.