Pennsylvania-based PPL Corporation and International Brotherhood of Electrical Workers Local 1600 reached a tentative agreement Saturday on a three-year labor contract.

The agreement includes wage increases of 7.75 percent over the three-year term of the contract, a new retirement savings program for future employees, changes in health-care benefit options that reflect the competitive market and work rule changes that provide for increased workforce flexibility and versatility.Local 1600 represents about 3,000 workers for PPL Electric Utilities, power plants owned by PPL companies in Pennsylvania and various PPL corporate services groups.The current collective bargaining agreement was set to expire May 11. In announcing the tentative agreement, PPL companies and Local 1600 also announced a temporary extension of current contract terms enabling business operations to continue normally while the union conducts its ratification vote.