Automatic Dielectric Tester LADT-A10

The Automatic Dielectric Tester LADT-A10 is used to determine the dielectric breakdown voltage of insulating oils, which directly impacts the reliability and safety of high-voltage equipment such as transformers, circuit breakers, and switchgear. Dielectric testing evaluates the oil’s ability to act as an insulator and prevent electrical discharges under stress. Over time, oils can degrade due to oxidation, moisture ingress, or contamination leading to reduced dielectric strength and potential system failure. Regular testing using this device helps to detect the issues earlier, ensuring timely maintenance and avoiding costly outages or equipment damage.

Labtron’s Automatic Dielectric Tester LADT-A10 features fully automatic testing cycles, including oil agitation, voltage ramping, breakdown detection, and shutdown eliminating manual intervention. This not only improves safety but also standardizes test conditions, reducing variability between operators and test batches. It follows pre-programmed test protocols in line with IEC 60156 and similar standards, ensuring global testing compliance. Automatic recording and display of test values also allow faster data acquisition and improved operational efficiency, especially in high-throughput labs or field conditions.

Our Automatic Dielectric Tester LADT-A10 is factory-calibrated to meet international testing standards and typically requires minimal recalibration under normal operating conditions. However, to maintain long-term accuracy and compliance, periodic calibration usually annually is recommended, especially in accredited labs or regulated environments. Calibration can be performed using certified high-voltage reference standards. The RS-232 interface also allows connection with external calibration tools or PC-based diagnostic software to validate or adjust test parameters as needed.

The Automatic Dielectric Tester LADT-A10 is compatible with a wide range of insulating liquids, including mineral-based transformer oils, synthetic esters, silicone fluids, and natural esters (biodegradable oils). Its flexible test settings and standardized electrode spacing (2.5?mm) support the testing of both fresh and in-service oils. Users can customize test cycles to meet the requirements of different standards or oil types. This versatility makes it suitable for utilities, transformer OEMs, oil refiners, and third-party testing labs.

Labtron's Automatic Dielectric Tester LADT-A10 may show inconsistent breakdown voltage readings due to factors like dirty electrodes, incorrect spacing, moisture contamination, or air bubbles in the oil. Ensure the test cell is properly cleaned and dried, and that the insulating oil is free from suspended particles or visible impurities. Verify that the electrodes are correctly spaced at 2.5?mm and are not corroded or damaged. If the issue persists, check if the device is operating under stable voltage conditions and consider recalibrating the unit using a certified reference oil.