Japan’s highest end precision current measurement technology since 1985
HARMONIC ANALYSIS ON HV ASSETS
High voltage assets, such as transformers, generators, and transmission lines, are critical components of electrical power systems. The presence of harmonics in line currents can lead to significant issues in these assets, including overheating, insulation deterioration, and equipment damage. Accurate line current harmonics measurement for high voltage assets is essential for assessing the power quality and ensuring the reliability of the electrical network.
Significance of Line Current Harmonics Measurement
Line current harmonics measurement is of paramount importance for high voltage assets for several reasons:
Asset Health Assessment: Harmonics can cause additional losses, increased thermal stress, and mechanical vibrations in high voltage assets, leading to a higher risk of failure. Monitoring harmonics helps assess the health of these assets.
Power Quality Assurance: Harmonics can cause voltage distortion and other power quality issues. Measurement helps ensure that high voltage assets are operating within specified quality standards.
Energy Efficiency: Harmonics can lead to energy losses in high voltage assets, resulting in higher operational costs and reduced energy efficiency. Measurement identifies inefficiencies.
Regulatory Compliance: High voltage assets must often comply with stringent harmonic distortion limits imposed by regulatory authorities. Measurement is necessary to ensure compliance.
Optimal Operation: Reducing harmonics in high voltage assets can improve system stability, prolong asset life, and minimize operational disruptions.
HCL-36UX is a digital clamp current tester specially designed to measure load current of high voltage assets. The clamp is U-shaped, with 55.4 mm diameter so no Clamp-on is needed. The clamp can measure load current of assets with voltage of up to 36 kV. The current rating is 3000 A, with auto range possibility. The clamp sends the measured data to a smartphone via Bluetooth. On the smartphone app the data is visualized on a user-friendly interface. Additionally, the app calculates the harmonic spectrum up to the 25th harmonic. The current is extremely safe to operate. The clamp has 100MΩ insulation resistance. The clamp can be extended with insulation rod, so the current can be measured from a distance, for example overhead lines. Also, the instrument has overcurrent protection and is shock and drop resistant.