The mathematical model of the Partial Discharge (PD) location detection system in transformers, using the Ultra High Frequency (UHF) technique, is a system of non-linear sphere equations. These non-linear equations are solved to determine the PD source co-ordinates. In this paper, a non-iterative method is studied to determine the PD location. For the study, a simulation-based system is modelled in an EM-solver. The UHF technique-based detection of the PD source location needs a minimum of four sensors. The non-iterative algorithm’s significant drawback is that it provides two solutions. However, in the present study, five sensors are positioned at specified coordinates to attain the real PD position (from the two obtained solutions) with higher accuracy.

使用超高频（UHF）技术的变压器局部放电（PD）位置检测系统的数学模型是一个非线性球体方程组。求解这些非线性方程式以确定PD源坐标。在本文中，研究了一种非迭代方法来确定局部放电位置。为了进行研究，在EM求解器中对基于仿真的系统进行了建模。基于UHF技术的PD源位置检测至少需要四个传感器。非迭代算法的主要缺点是它提供了两种解决方案。但是，在本研究中，将五个传感器定位在指定的坐标上，从而以更高的精度获得实际的PD位置（从两个获得的解中）。