Technology Class

This article will focus on the common methods of detecting rough fault points: the bridge method and the wave reflection method, hoping to help you quickly locate cable faults.

Refers to the ability to react to fault conditions within the specified protection range. A protective device that meets the sensitivity requirements shall be able to react sensitively and correctly to a fault within the zone, regardless of the location of the short-circuit point and the type of short-circuit.

Batteries with low internal resistance can discharge high currents easily, while those with high internal resistance discharge weakly. Internal resistance changes with power state and age.

The impact tests in electrical engineering generally include operation impact test, lightning impact test and steep wave front impact test, the purpose of which is to test the insulation strength of electrical equipment.

Both DC internal resistance and AC internal resistance measurements have their own unique principles and operations.

Once a fault occurs, it usually takes a lot of manpower and material resources to dig the cable out of the ground for troubleshooting. This type of troubleshooting method is most likely to cause problems such as low troubleshooting efficiency, long search time, and low test accuracy. This article will combine the work experience in recent years to explore the types of signal cable faults, the main causes, and the methods and techniques for finding cable faults using cable fault testers.

Hydrogen-cooled generator with water-cooled stator, segmented rotor coils, advanced ventilation, and safety features including sealing and cooling systems.

The article emphasizes the critical role of relay protection devices in modern power systems, discussing their operation, reliability, and the need for effective management to enhance power transmission efficiency and control.

Transformers convert AC voltage using electromagnetic induction, essential for power transmission and distribution. They adjust voltage to suit different applications, with the primary coil generating a magnetic field that induces force in the secondary coil. The coil turn ratio determines the voltage conversion.