Modification of Kohler Emergency Generator for Operation on 60 Cycle Current
Abstract
At least twenty-five Kohler emergency generator plants model 1E 21H, 1.5KVA, 11OV.A.C. have been returned from service in the Canal Zone to be used at other activities. The plants were designed to supply 60 cycle emergency power in the event of failure of the 25 cycle line supply which is normal line frequency on the service area. Since all controls on these equipments are designed to operate from the 25 cycle supply, it was requested that the least number of changes to assure continuous operation on 60 cycle current be determined, that one unit be modified accordingly and that instructions be provided for enabling the remaining units to be modified. List of parts and the procedure for making the changes is included in this report. With all of the modifications made, the unit was tested and found to be operating normally. The plant started up on failure of the commercial power line resumed operation. It was found from measurement that the starting battery was being changed at .5 amperes when the charging rate switch was in "hi" position, and at .2 amperes when this switch was in "lo" position. When the emergency generating plant was in operation the "hi" charging rate was 2.0 amperes and 1.6 amperes when on "lo" charging rate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 05, 1946
- Accession Number
- AD1196233
Entities
People
- R. R. Zirm
Organizations
- United States Naval Research Laboratory