SU61130A1 - Device for locking the protection of electrical installations when swinging - Google Patents

Device for locking the protection of electrical installations when swinging

Info

Publication number
SU61130A1
SU61130A1 SU27695A SU27695A SU61130A1 SU 61130 A1 SU61130 A1 SU 61130A1 SU 27695 A SU27695 A SU 27695A SU 27695 A SU27695 A SU 27695A SU 61130 A1 SU61130 A1 SU 61130A1
Authority
SU
USSR - Soviet Union
Prior art keywords
protection
locking
swinging
electrical installations
relay
Prior art date
Application number
SU27695A
Other languages
Russian (ru)
Inventor
Г.И. Атабеков
Original Assignee
Г.И. Атабеков
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Г.И. Атабеков filed Critical Г.И. Атабеков
Priority to SU27695A priority Critical patent/SU61130A1/en
Application granted granted Critical
Publication of SU61130A1 publication Critical patent/SU61130A1/en

Links

Description

В ОСНОВНОМ авт. св. № 48720 описано устройство дл  предотвращени  действи  релейной защиты при качани х. Устройство состоит из двух пусковых реле (реле максимального тока и реле минимального напр жени  или импеданца), имеющих различную чувствительность. Контакты этих реле (один нормально разомкнутый, а другой нормально замкнутый) включены последовательно в промежуточное реле.BASIC Auth. St. No. 48720 describes a device for preventing the effects of swing protection. The device consists of two starting relays (overcurrent relay and undervoltage or impedance relay) with different sensitivity. The contacts of these relays (one normally open and the other normally closed) are connected in series to the intermediate relay.

Действие указанного устройства основано на том, что при качани х более чувствительное реле замыкает свой нормально разомкнутый контакт раньше, чем второе реле размыкает свой нормально замкнутый контакт, вследствие чего замыкаетс  цепь промежуточного реле и тогда промежуточное реле размыкает цепь защиты.The action of this device is based on the fact that, when it swings, the more sensitive relay closes its normally open contact before the second relay opens its normally closed contact, as a result of which the intermediate relay closes and then the intermediate relay opens the protection circuit.

Однако, при малых периодах качаний могут иметь место случаи, когда второе реле, имеющее меньшую чувствительность, успеет разомкнуть свой контакт раньше, чем сработает первое реле, в результате чего промежуточное реле включено не будет и защита не будет блокирована.However, for small periods of swinging, there may be cases when the second relay, which has a lower sensitivity, has time to open its contact before the first relay operates, as a result of which the intermediate relay will not be turned on and the protection will not be blocked.

Описываемое устройство отличаетс  тем, что, с целью блокировки защиты при качани х путем фиксации первого полупериода качаний и выведени  вследствие этого защиты из действи  на все врем  качани , применено самоблокирующеес  промежуточное реле, цепь которого замыкаетс  через последовательно включенные контакты (один нормально разомкнутый, а другой нормально замкнутый) двух пусковых органов, имеющих различную чувствительность и неодновр еменно срабатывающих в момент возникновени  качаний.The described device is characterized in that, in order to block the protection during the swings, by fixing the first half-cycle of the swings and removing as a result of this protection from the entire swing time, a self-locking intermediate relay is applied, the circuit of which closes through the series-connected contacts (one normally open and the other normally closed) of two starting organs with different sensitivity and non-uniformly acting at the moment of the occurrence of the swings.

На чертеже схематически изображено видоизменение устройства по авт. св. № 48720.The drawing schematically shows the modification of the device according to ed. St. No. 48720.

Действие устройства основано на фиксации первого полупериода качаний.The operation of the device is based on fixing the first half cycle of oscillations.

В начальный момент возникновени  качаний в системе первый период качаний, как правило, получаетс  больше последующих периодов качаний; поэтому если обеспечить самоудерживание (самоблокировку)At the initial moment of occurrence of swings in the system, the first period of swings, as a rule, is obtained more than subsequent periods of swings; therefore, if you ensure self-holding (self-locking)

SU27695A 1939-11-23 1939-11-23 Device for locking the protection of electrical installations when swinging SU61130A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU27695A SU61130A1 (en) 1939-11-23 1939-11-23 Device for locking the protection of electrical installations when swinging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU27695A SU61130A1 (en) 1939-11-23 1939-11-23 Device for locking the protection of electrical installations when swinging

Publications (1)

Publication Number Publication Date
SU61130A1 true SU61130A1 (en) 1941-11-30

Family

ID=48242624

Family Applications (1)

Application Number Title Priority Date Filing Date
SU27695A SU61130A1 (en) 1939-11-23 1939-11-23 Device for locking the protection of electrical installations when swinging

Country Status (1)

Country Link
SU (1) SU61130A1 (en)

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