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SU610227A2 - Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends - Google Patents

Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends

Info

Publication number
SU610227A2
SU610227A2 SU762418663A SU2418663A SU610227A2 SU 610227 A2 SU610227 A2 SU 610227A2 SU 762418663 A SU762418663 A SU 762418663A SU 2418663 A SU2418663 A SU 2418663A SU 610227 A2 SU610227 A2 SU 610227A2
Authority
SU
USSR - Soviet Union
Prior art keywords
exchange
interlocking
arrangement
protection system
protection
Prior art date
Application number
SU762418663A
Other languages
Russian (ru)
Inventor
Владимир Федорович Воропаев
Гельман Николаевич Степанов
Original Assignee
Предприятие П/Я А-7374
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 Предприятие П/Я А-7374 filed Critical Предприятие П/Я А-7374
Priority to SU762418663A priority Critical patent/SU610227A2/en
Application granted granted Critical
Publication of SU610227A2 publication Critical patent/SU610227A2/en

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  • Protection Of Static Devices (AREA)
  • Alarm Systems (AREA)

Description

, (54) УСГГОЙСГВО ДЛЯ БЛОКИГОВКИ СЕЛЕКТИВНОЙ ЗАЩИТЫ, ВЫПОЛНЕННОЙ С ОБМЕНОМ ДИСКРЕТНОЙ ИНФОРМАЦИЕЙ МЕЖДУ КОНЦАМИ ЗАЩИЩАЕМОГО УЧАСТКА, (54) GOVERNMENT FOR LOCKING OF SELECTIVE PROTECTION, IMPLEMENTED WITH EXCHANGE OF DISCRETE INFORMATION BETWEEN THE ENDS OF THE PROTECTED SITE

эй, а запрещающий вход - к цеп м питани  защиты .Hey, and the prohibiting entrance - to the power supply chain of protection.

На чертеже изображена схема устройства дл The drawing shows a diagram of the device for

блокировки защиты.lock protection.

К лииии св зи 1 подключены: в начале - источник питани  2, в конце - балластное сопротивление 3. К линии подключены также полукомплекты защиты 4 и ключи 5. Разрешающие входы 6 ключей св заны с линией св зи, а запрещающие 7 с выходами блоков питани  8 полукомплектов защиты, цепи питани  которых подключены к защшцаемому участку 9.Line 1 is connected to: at the beginning - power source 2, at the end - ballast resistance 3. Semi-sets of protection 4 and keys 5 are also connected to the line. Permitting inputs of 6 keys are connected to the communication line, and prohibiting 7 are connected to outputs of power supply units 8 protection semi-sets, the power supply circuits of which are connected to the latched section 9.

Работает устройство следующим образом. При отсутствии повреждений в защищаемой сети в линии св зи блокировки устанавливаетс  напр жение, определ емое соотнощением сопротивлений источника 2, балластного сопротивлешш 3, полукомплектов защиты 4 и ключей 5.The device works as follows. In the absence of damages in the protected network, in the communication line of the blocking, the voltage is determined, determined by the ratio of the resistances of the source 2, the ballast resistance 3, the security half-sets 4 and the keys 5.

При этом полукомплекты защиты не блокируютс .In this case, the half-sets of protection are not blocked.

В случае внещнего к.з. (нормальна  работа блоков питани  полукомплектов) или по влении иной помехи, возбуждающей блокирующие органы направлени , входное сопротивление одного из полукомплектов 4 (ближайшего к месту к,з. или к источшпсу помехи) резко снижаетс . В этом случае напр жение в линии св зи снижаетс  практически до нул , что вызывает блокировку остальных поТ1укомплектов защиты. Аналогачно устройство работает при коротком замыкании в линии св зи. При обрыве в линии св зи напр жение в ней слева от точки обрыва повыщаетс , а справа - понижаетс  до нул  вследствие отключени  от источника питани . Защита в обоих случа х блокируетс .In the case of external k.z. (normal operation of the power supply units of the half sets) or the appearance of a different disturbance that excites the blocking directions, the input resistance of one of the half sets 4 (closest to the location to, z. or to the source of interference) sharply decreases. In this case, the voltage in the communication line drops to almost zero, which causes the rest of the P1 protection kits to be blocked. Similarly, the device operates during a short circuit in the communication line. If the link is broken, the voltage in the link to the left of the break point rises, and to the right it drops to zero due to disconnection from the power source. Protection in both cases is blocked.

Если напр жение питани  полукомплекюв сн жаетс  до уровн , не обеспечивающего нормальной работы блокирующих органов, сигнал на запрещающем входе ключа уменьщаетс , происходит закорачивание цепи блокировки, т.е. блокирующий сигнаЯ передаетс  на остальные полукомплекты защиты.If the supply voltage of the semicomplexes decreases to a level that does not ensure the normal operation of the locking bodies, the signal at the prohibitory input of the key decreases, short-circuiting of the blocking circuit occurs, i.e. the blocking signal is transmitted to the remaining half protection sets.

Если нштр жение снижаетс  в результате короткого замыкани  в зоне защиты, она отключаетс , например, токовыми защитами, которые в этом режиме достаточно чувствительны. При коротком замыкании через значительное переходное сопротивление , привод щее к отказу токовых запоит, к указанной защите подводитс  питание, обеспечивающее ее надежную работу.If the penetration is reduced as a result of a short circuit in the protection zone, it is turned off, for example, by current protections, which are quite sensitive in this mode. In the event of a short circuit, through a significant transient resistance, which leads to a current failure, the circuit will be energized; power is supplied to this protection, ensuring its reliable operation.

Такое рещение обеспечивает надежную работу I защиты, питаемой от защищаемой сети, при коротI всих замьпсани х, сопровождающихс  резким снижением напр жени  в сети, в точке поДключени  хот  бы одного из полукомплектов.Such a solution ensures reliable operation of the I protection, powered from the protected network, with short-circuit conditions, accompanied by a sharp decrease in the voltage in the network, at the point of disconnection of at least one of the semi-sets.

Claims (1)

1. Авторское свидетельство СССР № 555492,,.1. USSR author's certificate No. 555492 ,,. Н 02 Н 5/10, 11.05.75.H 02 H 5/10, 11.05.75.
SU762418663A 1976-11-09 1976-11-09 Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends SU610227A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762418663A SU610227A2 (en) 1976-11-09 1976-11-09 Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762418663A SU610227A2 (en) 1976-11-09 1976-11-09 Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU555492 Addition

Publications (1)

Publication Number Publication Date
SU610227A2 true SU610227A2 (en) 1978-06-05

Family

ID=20682291

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762418663A SU610227A2 (en) 1976-11-09 1976-11-09 Arrangement for interlocking a selective protection system with exchange of discrete information between protected portion ends

Country Status (1)

Country Link
SU (1) SU610227A2 (en)

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