RU2016114959A - Overcurrent protection device - Google Patents

Overcurrent protection device Download PDF

Info

Publication number
RU2016114959A
RU2016114959A RU2016114959A RU2016114959A RU2016114959A RU 2016114959 A RU2016114959 A RU 2016114959A RU 2016114959 A RU2016114959 A RU 2016114959A RU 2016114959 A RU2016114959 A RU 2016114959A RU 2016114959 A RU2016114959 A RU 2016114959A
Authority
RU
Russia
Prior art keywords
cable line
line
consumers
current
power supply
Prior art date
Application number
RU2016114959A
Other languages
Russian (ru)
Other versions
RU2639295C2 (en
Inventor
Юрий Николаевич Палкин
Original Assignee
Юрий Николаевич Палкин
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 Юрий Николаевич Палкин filed Critical Юрий Николаевич Палкин
Priority to RU2016114959A priority Critical patent/RU2639295C2/en
Publication of RU2016114959A publication Critical patent/RU2016114959A/en
Application granted granted Critical
Publication of RU2639295C2 publication Critical patent/RU2639295C2/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (5)

1. Устройство токовой защиты кабельной линии в системах электроснабжения потребителей трехфазного переменного тока от двухтрансформаторной подстанции представляет собой первый и второй секционирующие выключатели, которые соединяют соответственно, шины первой и второй секций шинного моста подстанции, причем одноименные шины секций соединены между собой через первый секционирующий выключатель и по меньшей мере один шинный мост потребителя; первые и вторые линейные выключатели, которые установлены между началом и концом кабельной линии соответствующей секции шинного моста подстанции и шинного моста потребителя, а также по одному линейному выключателю в начале и конце каждой кабельной линии, и блоки обнаружения повреждения и аварийного отключения, соединенные с линейными выключателями, отличающееся тем, что в нем использованы два блока для обнаружения повреждения, и два блока аварийного отключения; каждый блок обнаружения повреждения выполнен из одного токового трансформатора установленного между узловыми точками кабельной линии, состоящей из двух одинаковых кабелей, а выход этого трансформатора соединен с управляющим входом блока аварийного отключения, выход которого соединен с управляющими входами первого и второго линейного выключателей на данном кабеле; при этом первый и второй секционирующие выключатели в нормальном режиме работы системы замкнуты.1. The device for current protection of the cable line in the power supply systems of consumers of three-phase alternating current from a two-transformer substation is the first and second sectioning switches that connect, respectively, the buses of the first and second sections of the busbar substation, and the section buses of the same name are interconnected through the first sectioning switch and at least one bus bridge of the consumer; first and second line switches that are installed between the beginning and end of the cable line of the corresponding section of the substation busbar bridge and the consumer bus bridge, as well as one line switch at the beginning and end of each cable line, and damage detection and emergency shutdown units connected to the line switches characterized in that it uses two blocks for detecting damage, and two emergency shutdown blocks; each damage detection unit is made of one current transformer installed between the node points of the cable line, consisting of two identical cables, and the output of this transformer is connected to the control input of the emergency shutdown unit, the output of which is connected to the control inputs of the first and second linear circuit breakers on this cable; the first and second sectionalizing switches in the normal mode of operation of the system are closed. 2. Устройство токовой защиты кабельной линии в системах электроснабжения потребителей трехфазного переменного тока от двухтрансформаторной подстанции по п. 1, отличающееся тем, что блок аварийного отключения выполнен в виде токового реле с быстродействующими контактами.2. The device for current protection of the cable line in power supply systems for consumers of three-phase alternating current from a two-transformer substation according to claim 1, characterized in that the emergency shutdown unit is made in the form of a current relay with high-speed contacts. 3. Устройство токовой защиты кабельной линии в системах электроснабжения потребителей трехфазного переменного тока от двухтрансформаторной подстанции по п. 1, отличающееся тем, что линейный выключатель выполнен на основе вакуумного выключателя.3. The device for current protection of the cable line in the power supply systems of consumers of three-phase alternating current from a two-transformer substation according to claim 1, characterized in that the linear switch is based on a vacuum switch. 4. Устройство токовой защиты кабельной линии в системах электроснабжения потребителей трехфазного переменного тока от двухтрансформаторной подстанции по п. 1, отличающееся тем, что первый и второй секционирующие выключатели выполнены на основе вакуумного выключателя.4. The device for current protection of the cable line in power supply systems for consumers of three-phase alternating current from a two-transformer substation according to claim 1, characterized in that the first and second sectionalizing switches are made on the basis of a vacuum circuit breaker. 5. Устройство токовой защиты кабельной линии в системах электроснабжения потребителей трехфазного переменного тока от двухтрансформаторной подстанции по п. 1, отличающееся тем, что оно установлено на каждой из трех фаз кабеля кабельной линии, вторичные обмотки которых соединены между собой в разомкнутый треугольник и присоединены к заземляющему устройству.5. The device for current protection of the cable line in the power supply systems of consumers of three-phase alternating current from a two-transformer substation according to claim 1, characterized in that it is installed on each of the three phases of the cable of the cable line, the secondary windings of which are interconnected into an open triangle and connected to the ground device.
RU2016114959A 2016-04-18 2016-04-18 Current protection device RU2639295C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2016114959A RU2639295C2 (en) 2016-04-18 2016-04-18 Current protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2016114959A RU2639295C2 (en) 2016-04-18 2016-04-18 Current protection device

Publications (2)

Publication Number Publication Date
RU2016114959A true RU2016114959A (en) 2017-10-23
RU2639295C2 RU2639295C2 (en) 2017-12-21

Family

ID=60153644

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2016114959A RU2639295C2 (en) 2016-04-18 2016-04-18 Current protection device

Country Status (1)

Country Link
RU (1) RU2639295C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107942201A (en) * 2017-12-15 2018-04-20 国家电网公司 A kind of detection device and detection method for heavy-current bus-bars bridge vibration fault

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123418A (en) * 1982-12-28 1984-07-17 株式会社東芝 Direction discriminating system
RU2014705C1 (en) * 1992-05-22 1994-06-15 Юрий Самойлович Кузник Gear for stand-by directed current protection of electric power line with spur lines
RU2159980C1 (en) * 1999-12-20 2000-11-27 Шинкаренко Сергей Михайлович Method and device for directional overcurrent protection of two parallel lines in three-phase electrical installation
RU2195062C2 (en) * 2000-12-20 2002-12-20 Акционерное общество закрытого типа "Контактор" Overcurrent protection method
RU100683U1 (en) * 2010-07-23 2010-12-20 Юрий Николаевич Палкин POWER SUPPLY SYSTEM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107942201A (en) * 2017-12-15 2018-04-20 国家电网公司 A kind of detection device and detection method for heavy-current bus-bars bridge vibration fault

Also Published As

Publication number Publication date
RU2639295C2 (en) 2017-12-21

Similar Documents

Publication Publication Date Title
CN101297448B (en) A converter station
Descloux et al. Protection algorithm based on differential voltage measurement for MTDC grids
JP6430294B2 (en) DC breaker
RU2016148456A (en) DEVICE FOR COMPLEX REGULATION OF POWER FLOWS FOR TWO-CHAIN LINES
CN112514192A (en) AC/DC converter
EP2722954A1 (en) Method of operate Is-limiters in ring systems
KR101475659B1 (en) Dc supply unit for a power provision unit
JP2019004661A (en) Bus protection device
RU2016114959A (en) Overcurrent protection device
RU2513032C1 (en) Method for protection of integrated switchgear cubicles from arcing fault
WO2012136241A1 (en) Fault handling during circuit breaker maintenance in a double-breaker busbar switchyard
RU2638574C1 (en) Medium voltage substation
RU2654208C1 (en) Current protection device of electric motors
EA200901464A1 (en) GENERATOR CURRENT ZERO SEQUENCE
KR102071209B1 (en) Power converting apparatus for supplying dc power for dc distributing line
RU100683U1 (en) POWER SUPPLY SYSTEM
RU2559817C1 (en) Device for protection of integrated switchgear cubicle from arching faults
RU2399136C1 (en) Method for disconnection of short circuit in high-voltage ac circuit
RU171206U1 (en) DEVICE FOR PROTECTING ELECTRIC TRANSMISSION LINES FROM SINGLE-PHASE EARTH CLOSES IN A THREE-PHASE NETWORK WITH INSULATED NEUTRAL
CN108352703B (en) DC switch field and method for operating the same
RU2565065C2 (en) 110 kv (and higher) switching device
RU149390U1 (en) SECURITY PANEL
RU2614528C1 (en) Device for protecting power transmission of two parallel-connected cables in electrical network with insulated neutral of single-phase ground fault
ITMI20012788A1 (en) COMPACT MEASURING EQUIPMENT FOR THE PROTECTION OF MEDIUM VOLTAGE LINES
EP2498360B1 (en) DC electrical power system

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20180419