Publication

In situ control of HV cables during commissioning test operation or preventive maintenance using partial discharge reflectometry

Michel Ianoz, Pierre Zweiacker
1987
Conference Papers

Abstract

In order to achieve control of HV cables after repair or preventive maintenance measurements should be performed on the installed cables. The authors present numerical studies on the wave reflection in the cable using the EM transients program. They show the present promises and limits of the method of partial discharge reflectometry

Official source

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Michel Ianoz, Pierre Zweiacker
1987
Conference Papers

Abstract

Official source

Related concepts (18)

Maintenance

The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations. Over time, this has come to include multiple wordings that describe various cost-effective practices to keep equipment operational; these activities occur either before or after a failure. Maintenance functions can be defined as maintenance, repair and overhaul (MRO), and MRO is also used for maintenance, repair and operations.

Predictive maintenance

Predictive maintenance techniques are designed to help determine the condition of in-service equipment in order to estimate when maintenance should be performed. This approach promises cost savings over routine or time-based preventive maintenance, because tasks are performed only when warranted. Thus, it is regarded as condition-based maintenance carried out as suggested by estimations of the degradation state of an item. The main promise of predictive maintenance is to allow convenient scheduling of corrective maintenance, and to prevent unexpected equipment failures.

High-voltage cable

A high-voltage cable (HV cable) is a cable used for electric power transmission at high voltage. A cable includes a conductor and insulation. Cables are considered to be fully insulated. This means that they have a fully rated insulation system that will consist of insulation, semi-con layers, and a metallic shield. This is in contrast to an overhead line, which may include insulation but not fully rated for operating voltage (EG: tree wire).

Related publications (1)

In situ control of HV cables during commissioning test operation or preventive maintenance using partial discharge reflectometry

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