| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: proposed differential-frequency relay designed for adjusting generator frequency to supply mains has frequency meters for input and synchronized signals, synchronized-signal voltage amplitude meter, constant-factor multiplier, two comparators, two fixed components, algebraic adder, inverter, division unit, and constant-factor shaping unit. ^ EFFECT: enhanced precision. ^ 1 cl, 1 dwg |
