The application is related to {HEAD ~ electrical devices}, such as transformers, that use {TAIL ~ paper insulation} 
use
The application is related to { HEAD ~ electrical devices } , such as transformers , that use { TAIL ~ paper insulation }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL