BE1-25 Sync-Check Relays are recommended for situations that require verification of synchronism prior to closing a circuit breaker. Typical applications are:. Paralleling a generator to a system. Reestablishing a connection between two parts of a power system. Qt - mfg - type - cat# qt - mfg - type - cat# 3 - abb - 27 - 211r1175: 1 - ge - mdp - mdp4120000da: 3 - abb - 51 - 446s1201: 1 - ge - naa - 12naa27ac1a.
for the Energy Industry
Basler BE1-25A Automatic Synchronizer
PROJECT: Hydro Power Plant Refurbishment & Upgrade Project
I was the Project Manager and Lead Control System Engineer for an Engineer, Procure, and Construct (EPC) contract with a west coast city to resurrect an abandoned 3.5 megawatt capacity hydroelectric power plant facility. The facility ceased operation in 1998 due to numerous design, maintenance, and operational issues. In addition, the power house sustained a major flooding event in December of 2005 inundating all of the plant equipment up to an elevation of approximately four feet.
Under my senior management and control system guidance, engineers and construction craft completely refurbished all damaged, obsolete, and nonfunctional pieces of equipment from as large as the turbine/generators to as small as individual flow transmitters, switches, and relays. There was not a single system in the power house that remained untouched at the completion of this project.
A major challenge that was overcome was the replacement of obsolete and nonfunctional mid 1980s electronic and computer controlled equipment. These included the following:
- SCADA and plant controls upgrade to Allen-Bradley PLC
- Generator excitation equipment upgrade to a Basler Voltage Regulator
- Westinghouse generator protection relays upgrade to Schweitzer relays
- Auto Synchronization device upgrade to a Basler Auto Sync device
- Upgrade of the Transfer Trip communication devices including recloser
In general terms, I was the lead Project Manager and provided expert control system engineering for a complete plant rebuild. This included engineering design, construction and operation. All the work scope was completed even though this plant that had been historically problematic. The end result was to upgrade the plant to a proven standard demonstrated by the extensive years of experience in the power generation utility industry.
Be1250
RESULTS
• Designed and conducted all of the unit trip tests. This site used two lockout relays, normal and emergency (86N & 86E). Designed the philosophy and structure of the trip test based on using the updated electrical schematics & worked thru each sub-sys.
• Conducted the final tuning of the automatic synchronizer to match the characteristics of the turbine mechanical hydraulic governor and the utility line characteristics with the generator breaker closing event.
Be1258h
Be1-25a
©2011 Paul Dirks Engineering.
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Be1-25a
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