| Summary: | This paper presents a novel technique to identify the spot area of neutral-To-earth-voltage (NTEV) rise due to the problem of loose neutral termination (LT) in the commercial building. This technique is proposed to pin-point the spot area of problem either on the upstream or downstream side of measurement spot. In addition, this paper only focusing to the problem on the commercial building which comprise three-phase four wire conductor system. The results show the location of NTEV rise can be detected properly by using Fourier Transform (FT) which is the main core in a proposed technique. The NTEV rise due to the LT is one of the dominant problems in power quality because that problem give an adverse effect to the network distribution system where heating on the conductor cable, stray voltage, fire on the wiring system and lifetime of electrical appliances becoming shorter and shorter. © 2021 IEEE.
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