| 摘要 |
FIELD: electrical engineering; relay protective gear for supply mains and generators. ^ SUBSTANCE: proposed relay has five threshold units, adder, two AND gates, reversing counter, final component, clock generator, pulse frequency divider, and monostable multivibrator; input of fourth threshold input functions as supply mains voltage input; input of fifth threshold unit functions as peripheral generator voltage input; input of monostable multivibrator functions as trigger input of phase difference relay. ^ EFFECT: enlarged functional capabilities. ^ 1 cl, 2 dwg |
