A SIMULATOR FOR A LOW-VOLTAGE WIRING SYSTEM

摘要

PURPOSE: A simulator for a low-voltage distribution system is provided to consult various situations generated in an earth resistance, a line impedance according to a line length, and a coexisting of a high pressure or a low pressure. CONSTITUTION: A simulator of a low pressure distribution system comprises a transformer (100), an earth resistance switching unit (200), and a line resistance switching unit (300). The earth resistance switching unit varies an earth resistance of the primary side and the secondary side of the transformer by switching a third switch (SW3). The line resistance switching unit varies a resistance (R) and a line impedance (L) by switching a second switch (SW2) by being equipped between a load and the secondary side of the transformer. A coexisting of a neutral line of the primary side and a neutral line of the secondary side of the conductor is consulted by a switching action of a first switch (SW1) equipped between the neutral line of the primary side and the neutral line of the secondary side of the conductor.