Bus wiring fault detection circuit and fault judgment method

• Main Authors: WEI WEN, HONG PEIZAI, LIN ZHENHUANG
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2019
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a bus wiring fault detection circuit and a fault judgment method. The bus wiring fault detection circuit comprises a positive bus, a negative bus, a grounding wire, a protection module and a first voltage detection module. Two ends of the first voltage detection module are respectively connected with the negative bus and the grounding wire, and two ends of the protection module are respectively connected with the negative bus and the grounding wire. The protection module is used for disconnecting the connection between the negative bus and the grounding wire when the positive bus and the grounding wire are in short circuit. The first voltage detection module is used for detecting a voltage value between the grounding wire and the negative bus and judging the connection state of the positive bus, the negative bus and the grounding wire according to the voltage value. Through setting up the protection module, when the positive bus and the grounding wire are connected in a short circuit m