Supervisory control and remote metering

Supervisory control and remote metering installations on the electrified section of the Pennsylvania Railroad are outlined herein. A brief history of the growth of electrification on this railroad, and of the supervisory control and remote metering installations which accompanied the electrification is given, together with the locations at which the different types of equipment are used. These remote metering and control systems have been of considerable assistance in load dispatching and substation operation.