Whitepapers Archive - Hydro Review

Like-for-like plant controls upgrades: When are they an advantage?

12.23.19

Plants are facing the need to upgrade much of their automation systems and electrical gear due to age and obsolescence. However, the question that managers face is how much of the equipment do I need to replace and to what level does it need to be replaced. Do I just change out the computers and...

Business & Finance

Predictive maintenance

9.30.19

In today’s industrial segment, there are numerous companies which still practice preventive or corrective maintenance despite well-known disadvantages, such as the extra costs for repairs and prolonged production interruption periods. In addition, these factors lead to an almost irremediable decrease in productivity. However, there are better solutions. Predictive maintenance, which has long been proven and...

Dams and Civil Structures

Avoiding the Costly Challenges of Seized Coupling Bolts in Hydropower Plants

4.30.19

Planned turbine outages are among the most expensive costs to power plants. Often, such costs to hydropower facilities are compounded by the seizing of conventional fitted bolts in turbine/generator (T/G) coupling flanges. These seized bolts require extensive, time-consuming labor through a number of methods – most of which typically fail. Unexpected expenditures and time delays...

Generators and Electrical Components

Top Ten Reasons Generators Fail™ Hydrogenerator Edition

4.30.19

Power plant engineers and technicians will find useful this downloadable hydro version from NEC’s well-known Engineer’s Notebooks series. Presented are 10 mini case studies of failures common to hydrogenerators, Find out how good maintinence practices can impact the health of your unit and prevent unexpected stator rewinds or damage to rotor components and more. This...

Business & Finance

Cost Effective, Small Scale Pumped-Storage Solution

1.25.19

Obermeyer’s adjustable speed pumped-storage hydropower design utilizes the concept of submerging a reversible pump turbine below tailwater, eliminating the need for an underground powerhouse. This state-of-the-art design allows for more economical energy storage in the renewable energy market. White Paper Sponsored by Obermeyer Hydro, Inc.