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2026年03月09日 09時29分18秒

What is a short circuit? Causes, signs, and how to check for them in electrical systems.

In electrical systems, short circuits are one of the most common but also most dangerous faults. If just two wires touch each other or a phase wire touches ground, the current can surge suddenly in a very short time. This will cause the circuit breaker to trip, electrical equipment to stop working, and the wires may even overheat and catch fire.

2026年03月07日 11時17分58秒

What is voltage drop? Why does voltage drop occur and how to address it in electrical systems?

During electricity usage, there are times when appliances operate less efficiently than usual. Lights may flicker unevenly, pumps may run slowly, or the inverter may display a low voltage error. One of the common causes is voltage drop.

2026年03月06日 10時57分24秒

How does the Kyoritsu 4105A measure earth resistance? Quick review and usage instructions.

When inspecting the grounding system in electrical cabinets, buildings, or factories, measuring the ground resistance is almost mandatory. If the ground resistance value is not met, the lightning protection and electrical protection system will not function as designed.