CN202678208U - A gas relay used by a transformer - Google Patents
A gas relay used by a transformer Download PDFInfo
- Publication number
- CN202678208U CN202678208U CN 201220226859 CN201220226859U CN202678208U CN 202678208 U CN202678208 U CN 202678208U CN 201220226859 CN201220226859 CN 201220226859 CN 201220226859 U CN201220226859 U CN 201220226859U CN 202678208 U CN202678208 U CN 202678208U
- Authority
- CN
- China
- Prior art keywords
- transformer
- reed contact
- gas
- flow velocity
- circuit board
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a gas relay used by a transformer. The gas relay used by a transformer timely monitors gas amount, has a function of remote transmission of electronic analog quantity, and achieves accurate monitor to transformer oil loss so as to achieve automated intelligent control. The gas relay comprises a junction box, an upper floater, a light gas alarm dry reed contact, a flow velocity baffle, a flow velocity dry reed contact, an inner fixing support, and a lower housing. The key point of the structure of the gas relay are that the inner fixing support is equipped with a lower floater and a magnet, and that the lower floater is equipped with a oil loss tripping dry reed contact. The upper floater is equipped with a transmitter and a circuit board is disposed in the junction box. By the circuit board, the transmitter converts gas amount in the lower housing into an analog quantity output of 4 to 20mA or 0 to 5V.
Description
Technical field
The utility model relates to a kind of transformer Buchholz relay, and it belongs to parts of transformer, is mounted in the transformer master and joins on the tracheae, for the protection of the oil immersed power transformer safe operation.
Background technology
At present, the Buchholz relay of commonly using both at home and abroad is mainly used in monitoring oil-immersed power transformer inside because of the gas flow (light gas) of partial discharge generation and provides alarm signal and be used for the monitoring transformer and sends the transformer trip signal owing to the faults such as internal short-circuit cause transformer oil rapid expanding (oily flow velocity).Its basic structure comprises: terminal box, upper float, light gas alarming dry-reed contact, flow velocity baffle plate, flow velocity tripping operation dry-reed contact, inner fixed support, lower house.Its operation principle is: when the inner because gas flow that partial discharge produces (light gas) of transformer when main connection tracheae converges in the lower house of Buchholz relay, upper float descends with the increase of gas flow, in the time of near magnet fixing on the upper float arrives light gas alarming dry-reed contact contact, contacting sends gas flow with full alarm signal.When transformer inner because the faults such as short circuit cause the transformer oil rapid expanding, cause transformer oil when connection tracheae Rapid Flow is crossed Buchholz relay, oily stream impacts the flow velocity baffle plate, when the magnet that baffle plate drives trips dry-reed contact near flow velocity, contacting sends the too fast trip signal of flow velocity.The technical problem of its existence is: when 1, only the air accumulation in the Buchholz relay lower house is to some, just send alarm signal, and can not at any time the gas-storing capacity in the lower house be monitored, more can not realize the distant place transmission of gas-storing capacity in the lower house, make the user can not be to data acquisition and the storage of gas-storing capacity in the lower house; 2, monitors oil runs off at any time, and transformer oil is run off does not have defencive function; 3, do not reach the construction of current national intelligent grid to reliability and the high performance requirement of Buchholz relay.
The utility model content
The utility model is exactly for the problems referred to above, providing a kind of carries out timely monitor and has with electronic simulation amount distant place transfer function gas flow, can realize that loss is accurately monitored to transformer oil, be convenient to realize the transformer Buchholz relay of automatic intelligent control.
The utility model comprises terminal box, upper float, light gas alarming dry-reed contact, flow velocity baffle plate, flow velocity tripping operation dry-reed contact, inner fixed support, lower house, its structural feature is to be provided with lower float, magnet on the inner fixed support, is provided with oil loss tripping operation dry-reed contact at lower float.
As further improvement of the utility model, be provided with on the upper float in transmitter, the terminal box and be provided with circuit board, this transmitter converts the gas flow in the lower house to 4～20mA or 0～5V analog output by circuit board.
The utility model beneficial effect
1, by the inside fixed mount in lower house lower float, magnet and oil loss tripping operation dry-reed contact are set, float descends when transformer oil runs off at present, when magnet runs off the tripping operation dry-reed contact near oil, contacting, send the trip signal that transformer oil runs off, improved the transformer Operation safety.
2. by at upper float transmitter being housed, this transmitter is by being installed in the circuit board in the terminal box, the electronic simulation amounts such as 4～20mA or 0～5V that gas flow in the lower house is converted to output to the transformer control room, convenient monitoring to running state of transformer can be carried out continuous monitoring and the gas numberical value of quantity is gathered and stores gas flow in the lower house; Convenient monitoring to running state of transformer is convenient to realize automatic intelligent control;
3, meet national intelligent grid construction to reliability and the high performance requirement of oil flow relay.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model comprises terminal box 1, upper float 4, light gas alarming dry-reed contact 7, flow velocity baffle plate 6, flow velocity tripping operation dry-reed contact 11, inner fixed support 12, lower house 5, be provided with lower float 10, magnet 9 on the inner fixed support 12, be provided with oil loss tripping operation dry-reed contact 8 at lower float 10, when oil runs off, lower float 10 descends, magnet 9 is connected with tripping operation dry-reed contact 8, sends the trip signal that oil runs off, and has improved the transformer Operation safety.Be provided with transmitter 3 on the upper float 4, be provided with circuit board 2 in the terminal box 1, this transmitter 3 converts the gas flow in the lower house 5 to 4～20mA or 0～5V analog output by circuit board 2.
Claims (2)
1. transformer Buchholz relay, comprise terminal box, upper float, light gas alarming dry-reed contact, flow velocity baffle plate, flow velocity tripping operation dry-reed contact, inner fixed support, lower house, it is characterized in that being provided with on the inner fixed support lower float, magnet, be provided with oil loss tripping operation dry-reed contact at lower float.
2. transformer Buchholz relay as claimed in claim 1, it is characterized in that being provided with in transmitter, the terminal box on the described upper float and be provided with circuit board, this transmitter converts the gas flow in the lower house to 4～20mA or 0～5V analog output by circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220226859 CN202678208U (en) | 2012-05-21 | 2012-05-21 | A gas relay used by a transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220226859 CN202678208U (en) | 2012-05-21 | 2012-05-21 | A gas relay used by a transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678208U true CN202678208U (en) | 2013-01-16 |
Family
ID=47499092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220226859 Expired - Lifetime CN202678208U (en) | 2012-05-21 | 2012-05-21 | A gas relay used by a transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288564A (en) * | 2018-01-10 | 2018-07-17 | 宁波海蔓汽车科技有限公司 | Transformer Buchholz relay automatic exhaust device |
| CN113280884A (en) * | 2020-02-20 | 2021-08-20 | 阳江核电有限公司 | Gas quantity monitoring system, method and storage medium for gas relay of oil-immersed transformer |
-
2012
- 2012-05-21 CN CN 201220226859 patent/CN202678208U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288564A (en) * | 2018-01-10 | 2018-07-17 | 宁波海蔓汽车科技有限公司 | Transformer Buchholz relay automatic exhaust device |
| CN108288564B (en) * | 2018-01-10 | 2019-04-19 | 宁波海蔓汽车科技有限公司 | Transformer Buchholz relay automatic exhaust device |
| CN113280884A (en) * | 2020-02-20 | 2021-08-20 | 阳江核电有限公司 | Gas quantity monitoring system, method and storage medium for gas relay of oil-immersed transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494739A (en) | Remote oil level monitoring alarm device for distribution transformer | |
| CN202678208U (en) | A gas relay used by a transformer | |
| CN202600017U (en) | Intelligent temperature, humidity and current on-line real-time monitoring contact box | |
| CN203133204U (en) | Transformer DC magnetic biasing monitoring system | |
| CN110611714A (en) | Comprehensive energy application control system based on Internet of things big data cloud platform | |
| CN203224255U (en) | Temperature/humidity monitoring alarm device for cable trench of unattended transformer substation | |
| CN202524166U (en) | On-line monitoring and protection device used in feeder automation system | |
| CN202075846U (en) | Water flooding and temperature remote measuring device | |
| CN204030728U (en) | Box type transformer supervising device | |
| CN203325798U (en) | Gas relay for transformer | |
| CN203384062U (en) | Automatic drainage monitoring system of transformer substation | |
| CN202268749U (en) | Intelligent security monitoring device for box transformer substation | |
| CN201733004U (en) | Special intelligent circuit breaker for railways | |
| CN205246796U (en) | Used leakance electricity fault detection of transformer substation device | |
| CN201682274U (en) | Intelligent explosion-proof switch integrated protector | |
| CN203747378U (en) | Transformer microcomputer protection system | |
| CN201270385Y (en) | Intelligent synthetic electric distribution box | |
| CN205562672U (en) | Integration arrester on -line monitoring device | |
| CN209818268U (en) | PCS pump control system | |
| CN211479936U (en) | Float type gas relay for transformer | |
| CN103166320B (en) | Modeling for online monitoring of intelligent substation device temperature | |
| CN202333990U (en) | Intelligent multimedia monitoring system | |
| CN202405874U (en) | Intelligent remote-control electricity-stealing prevention comprehensive distribution network module | |
| CN104158142A (en) | Intelligent remote automatic reclosing lock controller | |
| CN202304956U (en) | Remote oil level monitoring and alarm device for distribution transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
|
| CX01 | Expiry of patent term |