SU594557A1 - Device for interlocking automatic connection of standby electric power - Google Patents
Device for interlocking automatic connection of standby electric powerInfo
- Publication number
- SU594557A1 SU594557A1 SU762354848A SU2354848A SU594557A1 SU 594557 A1 SU594557 A1 SU 594557A1 SU 762354848 A SU762354848 A SU 762354848A SU 2354848 A SU2354848 A SU 2354848A SU 594557 A1 SU594557 A1 SU 594557A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- voltage
- relay
- zero
- automatic
- contacts
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Control Of Multiple Motors (AREA)
Description
Изобретение предназначено дл применени в схемах автоматического включени резервного (АВР) электропитани в сет х с малым током замыкани на землю энергосистем и потребителей .The invention is intended for use in automatic power-on backup (ATS) power supply circuits in networks with a low earth fault current for power systems and consumers.
Известны различные схемы блокировки действи автоматики ввода резерва, например при действии частотной разгрузки, при наличии однофазного замыкани на землю в сет х с малым током замыкани на землю.There are various schemes of blocking the operation of automatic input reserve, for example, under the action of frequency unloading, in the presence of a single-phase ground fault in networks with a low ground fault current.
Ближайшим по технической сущности вл етс устройство дл блокировки автоматики включени резервного электропитани , состо щее из реле напр жени нулевой последовательности , подключенного к резервному источнику, реле тока нулевой последовательности, включенного на вводе основного источника питани , и промежуточного реле с замедлением на отпадание , контакты которого введены в цепь включени выключател резервного питани . Самоудерживание промежуточного реле происходит при срабатывании пускового органа минимального напр жени . Орган блокировки запрещает действие автоматики ввода резерва при однофазном замыкании на землю в сет х с изолированной нейтралью с целью предотвращени по влени двухфазного замыкани на землюThe closest in technical essence is a device for blocking automatic activation of a backup power supply, consisting of a zero-voltage relay connected to a backup source, a zero-sequence current relay connected to the main power supply input, and an intermediate relay with a fall-off delay, whose contacts introduced into the backup power switch on circuit. Self-holding of an intermediate relay occurs when a minimum voltage starting device is activated. The blocking authority prohibits the operation of automatic input reserve in case of single-phase earth fault in networks with insulated neutral in order to prevent the appearance of a two-phase earth fault.
и отключени резервного источника питани 1.and disconnect the backup power source.
Этот орган блокировки имеет сложную схему , требует установки трансформаторов тока нулевой последовательности и токовых реле, предназначен только дл одностороннего действи автоматического ввода резерва. Блокировка может отказать в действии при малых токах замыкани на землю, когда недостаточна чувствительность токового реле, при наличии на погащенной секции с землей синхронных двигателей, поскольку промежуточное реле может отнасть раньще, чем напр жение на секции снизитс до величины уставки срабатывани органа минимального напр жени .This blocking body has a complex scheme, it requires the installation of zero-sequence current transformers and current relays, it is intended only for the one-sided action of automatic input of a reserve. A blockage may fail at low earth fault currents when the current relay sensitivity is insufficient when there are synchronous motors on the boosted section with the ground, as the intermediate relay may be depleted earlier than the voltage on the section of the minimum voltage organ.
Такой орган блокировки нельз использовать на воздущных лини х из-за того, что установка трансформатора тока нулевой последовательности невозможна, он не защищает от ложной работы автоматики ввода резерва при перего ,, ранни предохранителей на трансформаторе напр жени , не работоспособен при применении в качестве пускового органа минимального напр жени реле времени с выдержкой на отпадание , что снижает надежность устройства.Such a blocking body cannot be used on air lines due to the fact that the installation of a zero-sequence current transformer is impossible, it does not protect against the false operation of the automatic input reserve when it blows fuses on a voltage transformer and is not operational when used as a starting organ the minimum voltage of the time relay with delay to the distance, which reduces the reliability of the device.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762354848A SU594557A1 (en) | 1976-05-03 | 1976-05-03 | Device for interlocking automatic connection of standby electric power |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762354848A SU594557A1 (en) | 1976-05-03 | 1976-05-03 | Device for interlocking automatic connection of standby electric power |
Publications (1)
Publication Number | Publication Date |
---|---|
SU594557A1 true SU594557A1 (en) | 1978-02-25 |
Family
ID=20659463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762354848A SU594557A1 (en) | 1976-05-03 | 1976-05-03 | Device for interlocking automatic connection of standby electric power |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU594557A1 (en) |
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1976
- 1976-05-03 SU SU762354848A patent/SU594557A1/en active
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