New EZ Lift Eyebolt Is Coming
In the 100-year-old electric power industry, PPI’s Power Partners business is working with customers to develop innovations that make it safer and easier to install distribution transformers, increase their reliability and life span, and utilize smart technologies that make it easier for utilities to monitor and manage transformers and distribution feeders in service.
Power Partners is about to introduce the EZ Lift Eyebolt for its transformers, in response to utility customers’ requests for an innovative way to lower their costs in the field and to reduce liability exposures that are associated with the lifting practices and devices currently in use. The unique bolt lifts the unit by the beam. By providing a single point for lift, the EZ Lift Eyebolt eliminates the need for slings and spreader bars, permits easier lifts in tight installations, and enables safer and faster installation of overhead transformers.
Center Bolt Cover
The exclusive center-bolt cover design is standard on all Power Partners overhead transformers, 5-1000 kVA single phase and 30-500 kVA three phase. The cover assembly is unique in both operation and design. The unit offers an extraordinary high withstand capability and an extra margin of safety.
Low Voltage Spark Gap
An internal low voltage spark gap has been developed as a means of protection for distribution transformers against secondary side surges. The Electric Utility Industry has been concerned about transformer failures attributed to secondary surges, although the failure rate is estimated to be less than 0.5% per year. The entire subject is very complex, but the phenomenon is very much related to system parameters, such as, house and pole ground resistance, length and type of service drop, and transformer load. The surge impedance of the transformer coil is also a significant factor, resulting in units larger than 50 kVA being typically immune from this type of failure. The Power Partners spark gap will provide the same degrees of protection as any other method presently available, and at a significantly lower cost.