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US 11,906,568 B2Granted
Monitoring arrangement for electrical equipment, and monitoring system
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsThomas Koch, Bastian Robben, Matthias Schubert
Life of this patent
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Abstract
A monitoring arrangement for electrical equipment includes a first sensor for sensing a surface creeping current on a creeping path-lengthening electrically insulating housing of the equipment. A monitoring system includes electrical equipment, the monitoring arrangement, a communication device for transmitting data to a central server device, and a central server device configured to receive and evaluate the data.
Claims20
A monitoring arrangement for electrical equipment, the monitoring arrangement comprising:
- a first sensor configured to detect a surface creeping current on a creeping path-lengthening electrically insulating housing of the equipment;
- a second sensor configured to detect a voltage applied to the equipment, said second sensor evaluating at least one of an electrical or magnetic field in an environment of the equipment, and said second sensor providing measurement data;
- third harmonics being determined from the measurement data, and a degree of aging of at least one varistor of a surge arrester of the equipment being determined based on the third harmonics.
Dependencies are inferred from the claim text.