322 / | HD | ELECTRICITY: SINGLE GENERATOR SYSTEMS |
17 | DF | AUTOMATIC CONTROL OF GENERATOR OR DRIVING MEANS {13} |
22 | DF | .~ Plural conditions {1} |
23 | DF | .~.~ Including an electrical condition {1} |
24 | .~.~.~ Plural electrical conditions {1} | |
25 | DF | .~.~.~.~> Voltage and current |