RU2012115871A

RU2012115871A - METHOD FOR CONTROLLING AUTOMATIC REPEATED SWITCHING OF THE FEEDER SWITCH WITH SHORT-CIRCUIT CONTROL IN THE CONTACT NETWORK

Info

Publication number: RU2012115871A
Application number: RU2012115871/28A
Authority: RU
Inventors: Леонид Абрамович Герман; Вадим Леонидович Герман
Original assignee: Леонид Абрамович Герман; Вадим Леонидович Герман
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2013-10-27
Also published as: RU2498328C1

Abstract

Способ управления автоматическим повторным включением выключателя фидера с контролем короткого замыкания в контактной сети двухпутного участка с постом секционирования и с трансформатором напряжения для контроля наведенного напряжения в контактной сети, причем по опорам контактной сети проходит линия ДПР, заключающийся в том, что после аварийного отключения выключателя фидера измеряют наведенное напряжение в контактной сети, отличающийся тем, что выделяют первую (U) и третью (U) гармоники наведенного напряжения, рассчитывают их отношение (В=U/U), и если В меньше Во, где Во - первое базовое значение, и Uбольше Ао, где Ао - второе базовое значение, то производят включение выключателя фидера, а если В больше Во или Uменьше Ао, то устанавливают запрет на включение выключателя фидера.A method of controlling the automatic reclosing of the feeder circuit breaker with short-circuit control in the overhead line of a double-track section with a sectioning post and with a voltage transformer to control the induced voltage in the overhead line, and the DPR line runs through the overhead supports, which consists in the fact that after emergency shutdown of the feeder circuit breaker measure the induced voltage in the contact network, characterized in that the first (U) and third (U) harmonics of the induced voltage are isolated, their ratio is calculated (B = U / U), and if B is less than B, where B is the first base value, and Umore Ao, where Ao is the second basic value, then the feeder breaker is turned on, and if B is more than Bo or U less than Ao, then the prohibition on closing the feeder breaker is set.

Claims

A method for controlling the automatic restart of the feeder circuit breaker with the monitoring of a short circuit in the contact network of a double-track section with a sectioning station and with a voltage transformer for monitoring the induced voltage in the circuit, and along the contact network supports there is an LPR line, which consists in the fact that after an emergency shutdown of the feeder circuit breaker measuring the induced voltage in the catenary, characterized in that the separated first _{(U (1))} and third _{(U (3))} harmonic of the induced voltage is calculated their elations (B = U ₍₃₎ / U _(1)), and if B is less than Bo, where Bo - the first reference value, and U _{(1) is} larger than Ao, where Ao - the second base value, that produce inclusion feeder circuit breaker, and if B is greater than B0 or U _{(1) is} less than A0, then a ban is placed on the inclusion of a feeder switch.