| 摘要 |
<p>1,179,616. Stand-by supply arrangements. BORG-WARNER CORP. 14 Dec., 1967 [27 Dec., 1966], No. 56935/67. Heading H2H. [Also in Division G3] A no-break standby supply arrangement for a load 88, which is normally energized over an inductor 87 and a line 11 from a primary A.C. line 86, comprises an inverter 10 which is connected to the load 88 by way of a voltage regulating system 23, 24, 26 (see Division G3); the inverter 10 derives its input from a charger 90 which is connected to the A.C. line 86 and which also charges a battery 11, a synchronizing unit 92 being provided so that the inverter output voltage is in phase with the output voltage on line 11. Thus, if the primary supply fails the battery 91 supplies the load over the inverter 10; if the voltage on line 11 should fall, the inverter commences to supply energy to the load and aids the primary supply; in addition, if the load voltage becomes too high the inverter operates regeneratively to charge the battery 91 and aids the charger 90. The inductor 87 isolates the load 88 from the effects of a short-circuit on the line 86.</p> |
