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Installation of the world's first Platform-Mounted Dynamic Voltage Restorer (DVRTM PM) prototype on a major North American utility system to protect a critical customer load from power system voltage disturbances ushers in a new era of power quality solutions available for overhead distribution systems on the utility side of the revenue billing meter. The DVRTM PM built by Siemens for the Electric Power Research Institute (EPRI) was installed at the Northem Lights Community College in Dawson Creek, B.C. where it provides protection for 600 KVA of load from disturbances coming from the utility 25-kV distribution system that serves the college.The early success of the DVRTM PM demonstration in Canada has implications for the Australian market where in excess of 90% of the 11 and 22 kV networks are bare conductor overhead lines. As a consequence, customers are exposed to the voltage sags that the DVRTM is designed to mitigate. Smaller critical customer loads can now be offered improved power quality network solutions on the 11 or 22 kV distribution systems that were not previously available. In Victoria alone, there are approximately 14,000 customers (or groups of commerciatlindustrial customers) who would benefit from such a network solution. This paper describes the DVRTM PM and the demonstration project installation, commissioning, and field operation to date. Future equipment designs are also discussed.

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A number of monolithic single-ended and push-pull oscillator chips were developed for C-band and Ku-band applications. The chips were used to build dielectric resonstor oscillator (DROS) and voltage controlled oscillators (VCOS) in both frequency bands.