The dissipation factor measurement 

(tan δ measurement)

The dissipation factor measurement (tan δ measurement) is a non-destructive and integral procedure that serves to evaluate the condition of an entire cable route. With the dielectric dissipation factor tan δ, the relation of effective power to reactive power of the cable is measured. The measurement provides clear information on the condition of the cable insulation and its ageing.

Sequence for tan δ diagnostics 

 
The tan δ measurement is performed over several voltage steps that can be adjusted in our devices. With aged cables, a characteristic increase in dissipation factor can be seen with increasing measurement voltage. A classification of the cables is possible, which proves highly valuable when planning the maintenance measures.

With the dissipation factor measurement you will discover

 

  • Areas in the insulation of XLPE cables that are damaged by water (water trees), which later lead to electrical trees and represent the natural cause of a cable fault
  • Faults in the insulation of paper-insulated mass-impregnated cables due to drying or insufficient insulation of paper-insulated mass-impregnated cables due to moisture
  • Moisture in accessories (joints/terminations) 
  • Possible partial discharges
  • Possible ageing effects in cable routes
Applications: Dissipation factor measurement | BAUR GmbH

Dissipation factor measurement with the BAUR Software 4

Applications: Dissipation factor measurement | BAUR GmbH

Illustration of dissipation factor measurement in the BAUR Software 4:

Applications: Illustration of dissipation factor measurement | BAUR GmbH

Illustration of dissipation factor measurement in the report

Perform dissipation factor and partial discharge measurements in parallel using the BAUR Software 4!

BAUR measurement methods for underground cables and accessories:

BAUR products for cable testing & diagnostics / dissipation factor measurement

1-5 of 5 products

BAUR Software 4

Software package for cable fault location, cable testing and cable diagnostics

frida TD

VLF testing and diagnostics unit

PHG 80 TD

VLF diagnostics system

PHG 80 TD/PD

VLF cable testing and diagnostics system

viola TD

Testing and diagnostics unit

1-5 of 5 products