| 摘要 |
FIELD: railway transport. ^ SUBSTANCE: invention relates to methods and equipment supplying power to electric systems in contact with vehicle current collectors. Proposed device to divided supply of ac traction system consists of switch connected between two sections of buses of sectioning post of two track section. First and second feeders are connected to first section, and third and fourth feeders, to second section. Said feeders supply contact systems of corresponding tracks, being separated by air gaps. Current transformer is installed on each feeder. Outputs of current transformers of first and second feeders are connected through scaling amplifiers to inputs of first comparator, and outputs of current transformers of third and fourth feeders are connected through scaling amplifiers to inputs of second comparator. Direct outputs of comparators are connected to inputs of OR circuit forming signal to switch on supply divider if currents of first and second, or third and fourth feeders are different, respectively. Inverted outputs of comparators are connected to inputs of AND circuit forming signal to switch off divider if currents are equal. ^ EFFECT: enlarged sphere of application of supply divider on heavy profile sections of track and at small intervals between trains. ^ 2 dwg |
