What is involved in a PMU installation and connection?
Installation of a typical 10 Phasor PMU is a simple process. A phasor will be either a 3 phase voltage or a 3 phase current. Each phasor will, therefore, require 3 separate electrical connections (one for each phase). We are talking about 6 wires per phasor – 2 for each phase of either voltage or current. The PMU will also measure the line frequency from a specific voltage phasor (typically a major bus assigned by the user). Typically an electrical engineer designs the installation and interconnection of a PMU at a substation or at a generation plant. Substation personnel will bolt equipment rack to the floor of the substation following established seismic mounting requirements. Then the PMU along with a modem and other support equipment will be mounted on the equipment rack. They will also install the Global Positioning Satellite (GPS) antenna on the roof of the substation per manufacturer instructions. The antenna signal cable will be connected to the antenna and brought directly to
