| 摘要 |
805,035. Protective cut-out arrangements. KERAG KESSELSCHMIEDE APPARATEUND MASCHINENBAU. May 6, 1955 [May 8, 1954; April 23, 1955], No. 13227/55. Class 38 (5). [Also in Group XL (a)] A protective circuit connecting the mains at terminals 30, 31 to an ozonizer (see Group XL (a)) comprising a number of glow discharge chambers each connected through an individual fuse to the terminals 22, 32, includes a hightension transformer 26, 27 and an overload relay 28, 29. If, in the event of a short-circuit in one of the discharge chambers, the corresponding fuse does not blow immediately, the relay operates and the contacts 29 disconnect the primary winding 27 of the transformer and connect the mains directly to the terminal 22 to ensure that the fuse blows and disconnects the faulty discharge chamber. The relay then drops back and re-connects the mains to the transformer to supply the other discharge chambers. |
