Design of Power-Line Monitoring Equipment

The extensive range in time duration (from microseconds to seconds) of power line distrubances which might affect the operation of data processing equipment requires monitors with characteristics not generally available. The operating and detection characteristics of two types of monitors specifically developed to monitor these disturbances are described. The first is an oscilloscope-automatic camera monitor called an "analog monitor." The second is a small, two-unit "digital printout monitor." Data obtained from the use of these monitors is also presented.