一种交联聚乙烯电缆故障点定位探测方法
By injecting a broadband signal into one end of the cable to construct an impedance spectrum, selecting characteristic frequencies to synthesize an excitation signal, and using a magnetic induction probe to obtain the magnetic field gradient and phase jump value, the problem of poor operability and high misjudgment rate in existing cable fault location technologies is solved, achieving high-precision and interference-resistant fault location.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG HONGCE CABLE CO LTD
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cable fault location methods are difficult to operate in practice, have a high misjudgment rate, and are difficult to accurately locate faults in complex urban electromagnetic environments.
By injecting a broadband detection signal into one end of the cable, an impedance distribution spectrum is constructed, characteristic frequencies are screened, a composite excitation signal is synthesized, and a magnetic induction probe is used to obtain the magnetic field strength gradient and phase jump value, and logical correlation is performed to determine the fault point.
It achieves high-precision fault location with autonomous self-adaptation, reduces false alarm rate, overcomes interference from complex environments, and adapts to cables of different specifications.
Smart Images
Figure CN122085054B_ABST