Innovative Power Engineering Company


Thermography - ONLINE

Non contact, non destructive online method detection on invisible infrared thermal radiation of objects. Any thermal anomaly may result in failures. Anomaly is based on detection of temperature difference of standard guide, phase to phase temperature differences and operating temperature signatures.

Insulation Power Factor (Dielectric dissipation factor / Tan Delta Measurement) - OFFLINE

Measurement of the dielectric dissipation power factor is performed on each winding to ground and each winding to all other windings to evaluate the condition of the insulation system. Current leakage through the insulation is measured and the dissipation power factor calculated as the ratio of the wattsloss to the apparent power input.

Partial Discharge - ONLINE

Partial discharge occurs in an insulation system when a breakdown of the insulation medium causes a redistribution of charge within the system. The high frequency method of detecting partial discharge offers good sensitivity and permits the site of the source to be located. The online technique has the advantage as it can measure PD at operating voltage, loading and 50Hz frequency, and it is a non destructive test, NDT. With measurements trend analysis, severity can be monitored and acts as early warning system.

Winding Resistance - OFFLINE

The winding resistance measurement allow the detection of the subtle changes in conductor resistance caused by various types of damage, i.e. high resistance joints, corrosion, fractures or dimensional reductions in the cross sectional area of conductors. With time in service, the mechanical vibration of operation can lead to failure or partial failure of conductors. Insulating blocks can also vibrate and wear away part of the cross section of copper conductors.

Insulation Resistance Test - OFFLINE

The insulation resistance test provides useful indicator of contamination and moisture on the insulation surfaces of the winding, especially when there are cracks, pinholes or fissures in the insulation.

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