Field performance of a digital transient surge recorder

Characterizing the waveshape of voltage and current transients on distribution systems caused by lightning events has been of considerable interest. A solid-state recording device for this purpose was developed in 1984 with high-sample-rate capabilities and the ability to operate for extended periods unattended. One-hundred of these recorders were fabricated and installed on electric utility distribution systems beginning in 1985. Triggered lightning tests were performed in 1987 and 1988 to further characterize the performance of the recorder and transducers. The design and operation of the recorders are discussed. The recorder has proven accurate, reliable, and effective in capturing high-frequency phenomena on utility distribution networks