Dissipation/Power Factor and Capacitance (Tan Delta) Measurement on Rotating Machines

The insulation is the most sensitive part of rotating machines. The lifetime of a stator winding depends on how effectively the electrical insulation can prevent any occurrence of winding faults.

Weak spots can already occur in the insulation during manufacture or impregnation with cast resin, through the stresses of daily operation (for example in the form of soiling) or general aging.

With capacitance and dissipation factor measurements, also known as tan-delta measurements, changes in the insulation can be diagnosed. Aging processes, changes in the structure of the insulation or moisture ingress can, for example, increase the dissipation factor. The increase in the dissipation factor during the "tip-up” test reflects the condition of the insulation.

Benefits of this solution

Easy to transport

Due to its modular design, easily transportable reactors and integrated high-voltage source, this solution is ideal for measuring capacitance and dissipation/power factor on generators and motors in various locations.

Modular concept

The flexible combination of several CP CR600 units enables the ideal compensation for each rotating machine at nominal frequency (50 Hz / 60 Hz).

Detailed analysis

The CPC 100, CP TD15 and CP CR600 feature long test cycles and perform automated voltage and frequency sweeps for more complete and detailed measurement analyses.

Saves time

The optional PTM software provides you with automated testing procedures and reporting – these features help you to work quickly and more efficiently than ever before.

TANDO 700

The portable TANDO 700 system offers high-precision measurement of dissipation/power factor (Tan Delta) and capacitance for high-voltage laboratory tests, such as routine and type tests, on rotating electrical machines –generators and motors. TANDO 700 also measures additional parameters such as power, current, voltage, impedance and frequency. TANDO 700 software shows you all measurement data in real-time, displays related trends and enables you to create customized reports.