Power flow analysis is a network analysis solution that predicts steady-state currents, voltages, and the flow of active and reactive power through all branches and busbars in a power system. Power flow analysis simulates various operating conditions and scenarios that cannot be experimentally tested on a real system due to limitations such as the system…
Category Archives: Service
Short circuit is a fault in the electrical system when there is a short circuit or discharge between the energized phases or the ground system caused by insulation deterioration, sudden voltage increase, overloaded equipment, loose connection causing overheating of the equipment, humidity in the operating environment, human error during installation, maintenance and operation of the…
The power system faces many impacts that cause instability and reduce reliability from the actual operation process caused by short circuits or discharges between energized phases or the ground system or by sudden load increases, loss of synchronization and excessive load usage that overloads the system’s tolerance due to increased demand for electrical energy, in…
Arc flash is the phenomenon of releasing a huge amount of heat energy when an electrical short circuit occurs such as a 3-phase short circuit, 2-phase short circuit, 1-phase short circuit to ground… due to a conductive object touching between energized phases or a short circuit due to a discharge between energized phases due to…
The current power system is connected by many centralized synchronous generators and distributed power sources, creating a complex system to provide electricity for production, business and human activities, so the management and operation are posing many great challenges to maintain the stability and reliability of the power system. During the operation process, the power system…
Harmonics are disturbances, these waveforms are voltage or current waveforms, periodic, sinusoidal and are integer multiples of the fundamental frequency (50 or 60 Hz). In today’s industrial power distribution systems, non-linear equipment accounts for an increasing proportion of the total load used. Any equipment that has non-linear voltage and current characteristics generates harmonics. The main…
An electric motor is an electromechanical device that converts electrical energy into mechanical energy. Electric motors operate on the principle of electromagnetic induction through the interaction of magnetic fields and current-carrying conductors to create rotational force. Electric motors are important and indispensable equipment in production and business activities. Starting motors, especially large motors in the…
Overheating and partial discharge shorten the operating life of equipment and can lead to serious fire and explosion incidents that affect the reliability and safety of the power system. Infrared thermal scanning and partial discharge measurement are indispensable methods in enhancing the monitoring of electrical cabinets and electrical equipment to detect and prevent problems early…
Installation conditions, environmental conditions, power quality, and operating processes cause negative impacts on electrical equipment such as overheating, partial discharge, mechanical damage, insulation damage or aging, gas leakage, incorrect metering devices, and incorrect protection devices. Therefore, preventive maintenance is an indispensable part to increase the stability and reliability of the power system. Preventive maintenance also…
The high penetration of distributed power sources into the power system, especially power sources using popular renewable energy sources such as solar panels and wind turbines, is characterized by unstable or intermittent output power due to continuous changes in solar radiation and wind fluctuations, causing major impacts on power quality. In addition, it changes the…
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