Power Factor / Grading Capacitance Measurement – GIS

Measuring the power factor, or the dissipation factor, also known as the tangent delta (tan δ), provides effective means for verifying the integrity of the insulation condition of circuit breaker components. In particular, the insulation condition of high voltage breaker bushings should be verified with this measurement. If the measurement is performed outside of mains frequency, interferences from nearby live station components can be filtered out and minimized. Measuring over a range of frequencies provides better insight into the insulation condition. Measuring the capacitance can help detect deterioration in capacitive layers of bushings.

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Benefits of this solution

High level of mobility

The CPX 200 + HVX10 combination is a compact, lightweight, and powerful test system for high and medium voltage assets, weighing less than 30 kg (66 lbs). The combo is designed for easy transport and handling, making it ideal for on-site substation testing.

One system – multiple tests

The CPX 200 + HVX10 combo offers you the best of both worlds by integrating insulation resistance with capacitance and power factor/dissipation factor testing in a single unit and setup.

Accurate and flexible

CPX 200 + HVX10 ensure highly accurate measurement data by offering not only advanced hardware capabilities but also four configurable measurement channels. The guarding inputs effectively bypass unwanted leakage currents, ensuring precise and reliable results.

TESTRANO 600 + CP TD12/15

The TESTRANO 600 can be used to comprehensively test power and distribution transformers, that can measure at frequencies ranging from 15 Hz to 599 Hz. When combined with the CP TD12, the device can provide great insight into the insulation condition of high voltage components.