Measurement System for Surface Leakage Current at Epoxy Resin Insulating Materials

Performance of the insulating material as a new insulator needs to be tested. To determine how well such performance requires testing with data acquisition techniques from analog to digital. Currently Testing is still off line by using oscilloscope. To increase the accuracy of Electrical Tracking measurement required online measurements by utilizing current sensors and voltage sensors. To test the accuracy of the voltage sensor and current sensor, it must be tested the sensitivity on the voltage sensor. A measuring device that can simulate the voltage and current conditions in the electrical tracking test was made. If no sensitivity test is conducted, then the results obtained may not match the actual voltage and current in the measurement system. The available current and voltage sensors in the market list the values and parameters in the datasheet. But the conditions in the field at the time of its application is influenced many things, especially mechanical and electrical influences. In this paper, measurement of current and voltage at sample of resin epoxy were carried out. Measurement result in this research show the average LC of rice husk ash is 46 mA. The average voltage during insulation failure in rice husk ash sample is 2,829 volts. The first discharge time on the average rice husk ash sample occurred at the 114 second. The first discharge current of the rice husk ash sample was at 20 mA. The average voltage during the first discharge on the ash of rice husk ash is 3,449 volts. The time of insulation failure on the average rice husk ash sample occurred at 4.661 seconds.