CASE STUDY

[Japan] At a renewal of cubicle-type high-voltage substation, it was difficult to select an appropriate transformer capacity because the current load capacity was unknown.

[Iran] I work as technical safety and electrical inspection consultants, inspecting electrical installations in residential, commercial, healthcare, and industrial facilities. With my previous instrument, each time I performed an RCD test, I had to repeatedly select, configure, and run each test item manually, which made inspections time-consuming. In addition, the instrument did not feature Anti-Trip technology. As a result, RCDs would often trip unnecessarily during loop impedance testing, causing interruptions and further reducing inspection efficiency.

[Spain] When performing fault diagnosis on electrical installations during the construction and repair of residential and commercial facilities, we used instruments such as multimeters, voltage testers, and clamp meters. However, we often could not perform sufficiently thorough diagnostics and had to rely on trial and error, experience, and intuition. Particularly in areas with a large number of aging residential and commercial facilities, it was necessary to respond to numerous electrical problems throughout the year. Accurately and efficiently identifying the cause of a fault was a significant challenge. In addition, when the cause could not be identified, it was often necessary to replace part or all of the equipment, resulting in additional time and cost burdens for customers.

[Japan] We had been using an older clamp meter, which made it difficult to take measurements in areas with densely packed wiring, making circuit checks more time-consuming. Since it did not include multimeter functions, we also had to carry a separate card-type tester, which required the additional hassle of winding and managing test leads.

[Japan] We had been using a multimeter to check analog signals on equipment such as I/P converters. Since the multimeter had to be connected in series with the equipment, it was necessary to either shut down the equipment or prepare additional wiring in advance. As a result, troubleshooting typically took 30 to 60 minutes.

[Italy] Without going over-budget, there was no multimeter that was satisfactory in every respect, including: Analog meters: transient response, precision, susceptibility to static buildup, and durability. Digital meters: readability, functions, and the operation of the auto power‑off feature.

[Japan] When using a power meter, connecting the voltage test leads to the terminals one by one was cumbersome, and we were concerned that the clips might come loose during measurement.

[Japan] We used to disconnect cables to test signal converters, which was time-consuming and required a lot of effort.

[Japan] There was an installation job for an EV/PHEV charger, but although it was installed, we were unable to verify whether the charger was functioning properly, so we had to confirm proper operation using the customer’s PHEV.