Reactor switching system of voltage sag device

• Main Author: YAO CHENGYONG
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2014
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model relates to a reactor switching system of voltage sag device. The system comprises a first single-pole double-throw switch, a second single-pole double-throw switch, a first reactor and a second reactor, wherein the first single-pole double-throw switch is connected with an electrical-network connection point, the second single-pole double-throw switch is connected with a short-circuit grounding point, tap joints of the first and second reactors are respectively connected with separate voltage testing wires, and the first or second reactor is connected by the first and second single-pole double-throw switches according to the voltage sag depth required for the voltage sag device. The first reactor includes five reactance sections, and the second reactor includes nine reactance sections. The reactor switching system enables that the two reactors of different reactance are switched and connected via the two single-pole double-throw switches, redundant configuration of reactors is avoided, and t