LIU Chunlai, ZHOU Taotao, MA Hongming, et al. Typical Mechanical Fault Diagnosis of GW4-126 Disconnector Based on Torque and Angle Detection[J]. High voltageapparatus, 2020, 56(2): 232-239.
LIU Chunlai, ZHOU Taotao, MA Hongming, et al. Typical Mechanical Fault Diagnosis of GW4-126 Disconnector Based on Torque and Angle Detection[J]. High voltageapparatus, 2020, 56(2): 232-239. DOI: 10.13296/j.1001-1609.hva.2020.02.035.
Typical Mechanical Fault Diagnosis of GW4-126 Disconnector Based on Torque and Angle Detection
An operating torque and rotation angle detecting technology for GW4-126 disconnector is put forward without needing to damage its original shaft system.The operating torque versus rotation angle curves are measured in typical mechanical states of the disconnector
such as normal state
jam of bearing
asynchronous action of three phases
and insufficient closing.It is concluded that the torque-angle curves will change with the mechanical state of the disconnector.On this basis
a longitudinal comparison method and a lateral comparison method based on the torque-angle curve are proposed to judge the mechanical state of the disconnector.Both methods can be applied to detection and diagnosis of the mechanical faults of the disconnector.