Industrial Pump Manufacturing Plant project in California
This project improves continuity of energy delivery from Southern California Edison when the California ISO issues a Load Reduction Alert. The equipment includes new high voltage switchgear, 2 - 700Kw gas fired
Engine Gen sets, Parallel Interconnection to SCE’s distribution system, and 2 - new load feeders for the plant. The protection included 2 - GPS100 for Generator Protection, 2 - BE1-851 for Feeders, BE1-951 for bus tie application and BE1-27/59 for backup interconnection protection. The project required a 78 - Loss of Synchronism element for the Primary Interconnection supplied by another vendor. The project improved plant emissions that were out of compliance when running the diesel engine gen sets.
Industrial Automotive Manufacturing Plant in Tennessee
This project improved the economics of the plant electric system by allowing the 1250Kw gas-fired engine gen set to operate as a back up unit, a peak shaving unit, or a continuous operation. There are also mutual
economic benefits for the TVA distributor since they are a combined electric and gas utility. The project used a BE1-GPS100 for generator protection and a BE1-951 for interconnection protection.
Industrial Food Processing Plant in California
The DG was added to provide response to ISO Load Reduction Alert. The project is interconnected with Southern California Edison, and due to the lack of need for a 78 function the interconnection protection was done
with a BE1-951 and the generator protection was done with a BE1-GPS100
Documentation for DG projects
Learn more about the unique issued encountered in distributed generation projects:
Directional Overcurrent (67) Relaying Applications in the DG Environment
This paper reviews the basics of the theory of directional
overcurrent relaying as applied in modern numeric relays, and then discusses several applications of the directional overcurrent relaying in the DG environment. An Excel spreadsheet (PoleSlip_R0.xls) to model voltages, currents, and power flow during a pole slip event is available for download.
Distributive Generation and Interconnection: Protection, Monitoring, and Interconnection Opportunities - Paralleling a distributed generation supply to an electric power system involves protection, monitoring and control of the interconnection for the mutual benefit of both parties to the interconnection. Standards exist that cover the various practices for the types of distributed energy technologies, sizes, and configurations of the interconnection.
Effects of Distributed Generation on Utility Protection Schemes - The effects of the addition of Distributed Generation to a distribution feeder can be minimized by having digital multifunction overcurrent with voltage protection schemes previously installed as standard feeder protection.
Intertie Requirements for DGs Connected to Radial Distribution Feeders - This paper will review some of the proposed protection requirements for Distributed Generators connected to radial distribution feeders.
Practical Experience in Commissioning Distributed Generation Installations - This paper covers the experiences of the authors during commissioning of several distributed generation projects under the auspices of Portland General Electric's Dispatchable Generation Program.
Protective Relaying When Distributed Generation is Added to Your Circuit - The purpose of this paper is to highlight the advantages of having numeric multifunction protection in place when Distributed Generation (DG) is added to a radial distribution circuit.
Successful DG Projects: Design and Build Considerations - This paper covers the design and build challenges for four DG projects known as On-Site Generation Resources, including their justification based on economics, reliability considerations, and flexibility for daily operational situations.
|
