CN207149477U - A kind of new gas relay - Google Patents
A kind of new gas relay Download PDFInfo
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- CN207149477U CN207149477U CN201721177795.9U CN201721177795U CN207149477U CN 207149477 U CN207149477 U CN 207149477U CN 201721177795 U CN201721177795 U CN 201721177795U CN 207149477 U CN207149477 U CN 207149477U
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- gas relay
- gas
- oil
- platinum wire
- relay housing
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Abstract
The embodiment of the present application discloses a kind of new gas relay.A kind of new gas relay provided by the utility model, including：Gas relay housing, resistive platinum wire fixed mount, resistive platinum wire, oil inlet, oil-out, capacitance level gauge, binding post and binding post fixed seat；Can be by measuring the resistance of resistive platinum wire, the oil stream flow velocity of oil inlet and oil-out is flowed through in measurement indirectly, consequently facilitating completing the functions such as the display of the flow velocity and flow of oil stream, record and setting alarming logic, and then realizes grave gas defencive function；Measure the liquid level of medium indirectly by capacitance level gauge, consequently facilitating completing the functions such as liquid level, the display of evacuation volume, record and setting alarming logic, and then realize light gas protecting function；The related organizations such as rotary shaft, the spring stop of tradition machinery form gas relay can be avoided the problems such as medium attachment, motion reliability decrease to be over time present, reliability is high, strong antijamming capability.
Description
Technical field
The application is related to relay technical field, more particularly to a kind of new gas relay.
Background technology
Gas relay is for a kind of main protection device in oil-filled transformer.When in oil-filled transformer
There is turn-to-turn and layer short circuit, iron core failure, inside pipe casing failure, winding inside broken string and insulation degradation in portion and pasta declines
Etc. failure when, gas relay can delicately generation act, send in time fault alarm or rapidly from power network cut off therefore
Hinder equipment, so as to reduce the generation of accident, the safe operation to equipment provides powerful guarantee.
The protection mechanism structure of existing gas relay is usually mechanical structure, mainly includes grave gas protection mechanism
With light gas protecting mechanism.Wherein, grave gas protection mechanism generally include suspension bracket, rotary shaft, baffle plate, reset tension spring and
Dry spring.Suspension bracket is connected with Casing top, and rotary shaft is arranged on suspension bracket, and baffle plate is towards housing oil inlet, and baffle plate side is with revolving
Rotating shaft is connected, and rotary shaft side, which is provided with, resets tension spring.When oil stream is moved, impact baffle plate rotation produces displacement,
It is arranged on the dry-reed contact of suspension bracket side so as to trigger and sends signal.Light gas protecting mechanism generally includes suspension bracket, rotary shaft, again
Hammer open cup and dry spring into shape.Suspension bracket is arranged at the position that gas relay enclosure interior is higher than latus rectum, and rotary shaft is arranged at suspension bracket
On, open cup side is connected with rotary shaft, and weight is located at open cup opposite side.When liquid level is higher than open cup, open cup one
Side floats；When liquid level is less than open cup, the weight of liquid makes open cup drop in open cup, and triggering is installed on suspension bracket side
Dry-reed contact sends signal.
However, the grave gas protection mechanism and light gas protecting mechanism of above-mentioned existing gas relay are mechanical shape
Formula, the related organizations such as rotary shaft be present, over time, these related organizations can have medium attachment, make what it was acted
Reliability decrease, when internal fault occurs for transformer, as the unique protection device of inside transformer, mechanical gas relay
Device can only pinpoint demarcation working value by dedicated test calibrator (-ter) unit, cause to bring uncertainty to working value demarcation, exist interior
Portion's malfunction can not Real-time Feedback, there is situations such as malfunction or tripping.Therefore, the reliability of above-mentioned existing gas relay
It is limited.
Utility model content
The application provides a kind of new gas relay, to solve the problems, such as existing gas relay limited reliability.
The application provides a kind of new gas relay, including：Gas relay housing, resistive platinum wire fixed mount, platinum electricity
Hinder silk, oil inlet, oil-out, capacitance level gauge, binding post and binding post fixed seat；
Electrical appliance kit is provided with the top of the gas relay housing, the bottom both ends of the gas relay housing are set
There is flange, the oil flow channel of the flange is provided through in the gas relay housing, one end of the oil flow channel is
Oil inlet, the other end of the oil flow channel is oil-out；
Described in the resistive platinum wire fixed mount setting in flange, the resistive platinum wire is consolidated by the resistive platinum wire fixed mount
Due in the gas relay housing, the resistive platinum wire is between the oil inlet and the oil-out；
The capacitance level gauge is arranged at the top of the gas relay housing, the bottom of the capacitance level gauge
Extend to the inside of the gas relay housing, the bottom of the capacitance level gauge is located inside the oil flow channel；
The binding post fixed seat is arranged at the top of the gas relay housing, and the binding post is arranged at described connect
In terminal fixed seat；The binding post bottom is connected with the resistive platinum wire and the capacitance level gauge.
Optionally, the resistive platinum wire fixed mount is in hollow cylindrical, the resistive platinum wire fixed mount and the flange spiral shell
Line connects, and the resistive platinum wire fixed mount and the oil flow channel are coaxial.
Optionally, light gas release and acquisition port are provided with the top of the top-side of the gas relay housing, it is described
Light gas release and acquisition port connect with the gas relay enclosure interior.
Optionally, the interior of electrical box is provided with magnetic valve, one end of the magnetic valve and the light gas release and
Acquisition port connects, and the other end of the magnetic valve connects with the gas relay enclosure interior.
Optionally, the magnetic valve is manual and electric integral solenoid valve, and the magnetic valve top is provided with hand switch.
Optionally, the front and rear surfaces of the gas relay housing are respectively arranged with light gas observation window and grave gas observation
Window, the light gas observation window is located at close to the side of the electrical appliance kit in the gas relay housing front and rear surfaces, described
Grave gas observation window is located at the side away from the electrical appliance kit in the gas relay housing front and rear surfaces.
From above technical scheme, a kind of new gas relay provided by the utility model, including：Gas relay
Housing, resistive platinum wire fixed mount, resistive platinum wire, oil inlet, oil-out, capacitance level gauge, binding post and binding post are fixed
Seat；Be provided with electrical appliance kit at the top of gas relay housing, the bottom of gas relay housing is provided at both ends with flange, gas after
The oil flow channel of flange is provided through in casing for electric appliances, one end of oil flow channel is oil inlet, and the other end of oil flow channel is
Oil-out；In resistive platinum wire fixed mount setting flange, resistive platinum wire is fixed on gas relay shell by resistive platinum wire fixed mount
In vivo, resistive platinum wire is between oil inlet and oil-out；Capacitance level gauge is arranged at the top of gas relay housing, electricity
The bottom of appearance formula liquid level gauge extends to the inside of gas relay housing, and the bottom of capacitance level gauge is located in oil flow channel
Portion；Binding post fixed seat is arranged at the top of gas relay housing, and binding post is arranged in binding post fixed seat；Binding post bottom
End is connected with resistive platinum wire and capacitance level gauge；New gas relay of the present utility model, can be by measuring RTD
The resistance of silk, indirectly measurement flow through the oil stream flow velocity of oil inlet and oil-out, consequently facilitating completing the flow velocity and flow of oil stream
The functions such as display, record and setting alarming logic, and then realize grave gas defencive function；Surveyed indirectly by capacitance level gauge
The liquid level of medium is measured, consequently facilitating completing light gas liquid level, the display of evacuation volume, record and setting alarm
The functions such as logic, and then realize light gas protecting function；Rotary shaft, the spring catch of tradition machinery form gas relay can be avoided
There is the problems such as medium attachment, motion reliability decrease in Ban Deng related organizations, reliability is high over time.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of dimensional structure diagram for new gas relay that the embodiment of the present application provides.
Fig. 2 is a kind of schematic front view for new gas relay that the embodiment of the present application provides.
Fig. 3 is a kind of schematic top plan view for new gas relay that the embodiment of the present application provides.
Fig. 4 is a kind of diagrammatic cross-section for new gas relay that the embodiment of the present application provides.
Illustrate：1- gas relay housings；2- resistive platinum wire fixed mounts；3- resistive platinum wires；4- oil inlets；5- is fuel-displaced
Mouthful；6- capacitance level gauges；The light gas releases of 7- and acquisition port；8- magnetic valves；9- binding posts；10- binding post fixed seats；11-
Light gas observation window；12- grave gas observation windows；100- electrical appliance kits；101- flanges；102- oil flow channels.
Embodiment
Protection is the main protection of power transformer interior fault, to transformer turn-to-turn and layer short circuit, iron core failure, sleeve pipe
The failure such as broken string and the decline of insulation degradation and pasta can sensitive action inside internal fault, winding.When oil-filled transformer
When inside is broken down, because electric arc will decompose insulating materials and produce substantial amounts of gas, flowed from fuel tank to conservator, its is strong
Strong degree is different and different with the order of severity of failure, and the protection reacted this air-flow and oil stream and acted is referred to as protection,
Also gas shield is cried.
Protection is generally divided into the light class of gas and grave gas two.Inside transformer overheats or shelf depreciation, makes transformer
Oil temperature rises, and produces certain gas, comes together in relay, touches relay after having reached a certain amount of, sends signal, should
Protection is referred to as light gas protecting.After serious short circuit occurs in transformer, impact will be produced to transformer oil, rushes at certain oil stream
The plate washer of relay, act in tripping operation, the protection is referred to as grave gas protection.
Fig. 1 to Fig. 4 is referred to, the embodiment of the present application provides a kind of new gas relay, including：Gas relay housing
1st, resistive platinum wire fixed mount 2, resistive platinum wire 3, oil inlet 4, oil-out 5, capacitance level gauge 6, binding post 9 and binding post are consolidated
Reservation 10.
Wherein, the top of the gas relay housing 1 is provided with electrical appliance kit 100, the bottom of the gas relay housing 1
Portion is provided at both ends with flange 101, and the flange 101 is used for the oil pipe being arranged on gas relay housing 1 under installation for transformer
In.The oil flow channel 102 of the flange 101 is provided through in the gas relay housing 1, the oil flow channel 102
One end is oil inlet 4, and the other end of the oil flow channel 102 is oil-out 5.During transformer normal work, the oil flow channel
The state filled with oil is in 102.
The resistive platinum wire fixed mount 2 is set in the flange 101, and the resistive platinum wire 3 is consolidated by the resistive platinum wire
Determine frame 2 to be fixed in the gas relay housing 1, the resistive platinum wire 3 be located at the oil inlet 4 and the oil-out 5 it
Between.
In the present embodiment, the resistive platinum wire 3 may be configured as three, because the resistance of resistive platinum wire 3 can be with temperature
Change and change, and incidence relation be present between the flow velocity and flow of the temperature of oil and oil, by the resistance of resistive platinum wire 3
Sampling, flow velocity and flow oily in oil flow channel 102 can be measured indirectly, so as to complete oil flow velocity and flow display,
The function such as record and setting alarming logic.
The capacitance level gauge 6 is arranged at the top of the gas relay housing 1, the capacitance level gauge 6
Bottom extends to the inside of the gas relay housing 1, and the bottom of the capacitance level gauge 6 is located at the oil flow channel
Inside 102.When the height change of measuring electrode is drawn in measured medium leaching, the electric capacity of electrode can be caused to produce change.Condenser type liquid
The change of fuel head can be converted into standard current signal by position meter 6, pass through the electric current of the electrode to flowing through capacitance level gauge 6
Sampled, measure the fuel head in the oil flow channel 102 indirectly, so as to complete fuel head, evacuation volume it is aobvious
Show, record and set the functions such as alarming logic.The binding post fixed seat 10 is arranged at the top of the gas relay housing 1
Portion, the binding post 9 are arranged in the binding post fixed seat 10；The bottom of binding post 9 and the resistive platinum wire 3 and institute
State capacitance level gauge 6 to connect, the binding post 9 can be used for the devices such as connection external detection instrument, be easy to the RTD
The electric current that 3 resistance of silk and the electrode of the capacitance level gauge 6 flow through is detected.
New gas relay operation principle of the present utility model is as follows：
Gas relay housing 1 is arranged in the oil pipe under installation for transformer by the flange 101.The normal work of transformer
When making, the state filled with oil is in the oil flow channel 102.When inside transformer produces failure, internal temperature is too high or produces
During raw partial discharge phenomenon, the oil temperature of transformer oil can be caused to rise, oil decomposition can produce certain gas, these gas collections
In in gas relay housing 1, oil in oil flow channel 102 can be emptied after reaching a certain amount of so that oil flow channel 102
Interior oily liquid level declines, and now, the current value flowed through in the electrode by detecting the capacitance level gauge 6, can survey indirectly
The fuel head in the oil flow channel 102 is measured, so as to complete liquid level, the display of evacuation volume, record, setting report
The functions such as alert logic, realize light gas protecting.
After serious short circuit occurs in transformer, impact will be produced to transformer oil, certain oil stream is rushed at gas relay
The oil flow channel 102 of device housing 1 so that oily flow velocity and flow in oil flow channel 102 produce change, and oily temperature produces change
Change, the resistance of resistive platinum wire 3 can also produce change with the change of oil temperature, by the sampling to the resistance of resistive platinum wire 3, can between
Connect and measure flow velocity and flow oily in oil flow channel 102, so as to complete display, record and the setting of the flow velocity of oil and flow
The functions such as alarming logic, realize that grave gas is protected.
New gas relay of the present utility model fundamentally avoids the rotation of tradition machinery form gas relay
The problems such as medium attachment, motion reliability decrease over time be present in the related organizations such as axle, spring stop；By to electricity
The electrode current sampling of appearance formula liquid level gauge 6, measures medium liquid level, so as to realize light gas protecting function, avoids indirectly
Vibrations or liquid stream light gas are unstable, are fluctuated by during weight open cup there is open cup and cause mechanical structure
The problems such as damage；In addition, new gas relay of the present utility model also have it is simple in construction, measurement error is small, anti-interference energy
Power is strong, the advantages that conveniently adjusting.
In the present embodiment, the resistive platinum wire fixed mount 2 is in hollow cylindrical, the resistive platinum wire fixed mount 2 and institute
State flange 101 to be threadedly coupled, the resistive platinum wire fixed mount 2 and the oil flow channel 102 are coaxial.The resistive platinum wire fixed mount
2 are threadedly coupled with the flange 101, when needing to change resistive platinum wire 3, are easy to the installation and removal of resistive platinum wire fixed mount 2,
And to the fixed of resistive platinum wire 3.
In the present embodiment, light gas release and collection are provided with the top of the top-side of the gas relay housing 1
Mouth 7, the light gas release and acquisition port 7 connect with the inside of gas relay housing 1.When inside transformer overheat or office
Portion discharge, make transformer oil oil temperature rise, produce certain gas, come together in relay, reached it is a certain amount of after touch after
Electrical equipment, sends signal, when triggering light gas protecting, can be discharged by the light gas release and acquisition port 7 or described in gathering
Gas caused by the inside of gas relay housing 1.
In the present embodiment, the electrical appliance kit 100 is internally provided with magnetic valve 8, one end of the magnetic valve 8 with it is described light
Gas discharges and acquisition port 7 connects, and the other end of the magnetic valve 8 connects with the inside of gas relay housing 1.The electricity
Magnet valve 8 is manual and electric integral solenoid valve, and the top of magnetic valve 8 is provided with hand switch.It can be controlled by the magnetic valve 8
The light gas release and the break-make of acquisition port 7.
In the present embodiment, the front and rear surfaces of the gas relay housing 1 are respectively arranged with the light He of gas observation window 11
Grave gas observation window 12, the light gas observation window 11 is in the front and rear surfaces of gas relay housing 1 close to the electricity
The side of device box 100, the grave gas observation window 12 are located in the front and rear surfaces of gas relay housing 1 away from the electrical equipment
The side of box 100.The light gas observation window 11 and grave gas observation window 12 can be used for observing in the gas relay housing 1
The state in portion, it is easy at any time to carrying out observation monitoring inside the gas relay housing 1, to find failure in time.
From above technical scheme, a kind of new gas relay provided by the utility model can be by measuring platinum electricity
The resistance of silk 3 is hindered, the oil stream flow velocity of oil inlet 4 and oil-out 5 is flowed through in measurement indirectly, consequently facilitating completing the flow velocity and stream of oil stream
The functions such as display, record and the setting alarming logic of amount, and then realize grave gas defencive function；Pass through capacitance level gauge 6
Measure the liquid level of medium indirectly, consequently facilitating complete light gas liquid level, evacuation volume display, record and set
Determine the functions such as alarming logic, and then realize light gas protecting function；Can avoid tradition machinery form gas relay rotary shaft,
There is the problems such as medium attachment, motion reliability decrease in the related organizations such as spring stop, reliability is high over time, resist
Interference performance is strong.
The application embodiment above does not form the restriction to the application protection domain.
Claims (6)
- A kind of 1. new gas relay, it is characterised in that including：Gas relay housing (1), resistive platinum wire fixed mount (2), Resistive platinum wire (3), oil inlet (4), oil-out (5), capacitance level gauge (6), binding post (9) and binding post fixed seat (10)；Electrical appliance kit (100), the bottom of the gas relay housing (1) are provided with the top of the gas relay housing (1) Flange (101) is provided at both ends with, the oil flow channel of the flange (101) is provided through in the gas relay housing (1) (102), one end of the oil flow channel (102) is oil inlet (4), and the other end of the oil flow channel (102) is oil-out (5)；The resistive platinum wire fixed mount (2) is set in the flange (101), and the resistive platinum wire (3) passes through the resistive platinum wire Fixed mount (2) is fixed in the gas relay housing (1), and the resistive platinum wire (3) is located at the oil inlet (4) and described Between oil-out (5)；The capacitance level gauge (6) is arranged at the top of the gas relay housing (1), the capacitance level gauge (6) Inside from bottom to the gas relay housing (1) extend, the bottom of the capacitance level gauge (6) is located at the oil stream Passage (102) is internal；The binding post fixed seat (10) is arranged at the top of the gas relay housing (1), and the binding post (9) is arranged at On the binding post fixed seat (10)；Binding post (9) bottom and the resistive platinum wire (3) and the capacitance level gauge (6) connect.
- 2. a kind of new gas relay as claimed in claim 1, it is characterised in that the resistive platinum wire fixed mount (2) is in Hollow cylindrical, the resistive platinum wire fixed mount (2) are threadedly coupled with the flange (101), the resistive platinum wire fixed mount (2) It is coaxial with the oil flow channel (102).
- 3. a kind of new gas relay as claimed in claim 1, it is characterised in that the gas relay housing (1) Be provided with light gas release and acquisition port (7) at the top of top-side, the light gas release and acquisition port (7) and the gas after Connected inside casing for electric appliances (1).
- 4. a kind of new gas relay as claimed in claim 3, it is characterised in that set inside the electrical appliance kit (100) There is magnetic valve (8), one end of the magnetic valve (8) connects with the light gas release and acquisition port (7), the magnetic valve (8) The other end and the gas relay housing (1) inside connect.
- 5. a kind of new gas relay as claimed in claim 4, it is characterised in that the magnetic valve (8) is manual and electric Integral solenoid valve, magnetic valve (8) top are provided with hand switch.
- 6. a kind of new gas relay as claimed in claim 1, it is characterised in that the gas relay housing (1) Front and rear surfaces are respectively arranged with light gas observation window (11) and grave gas observation window (12), and the light gas observation window (11) is located at Close to the side of the electrical appliance kit (100), the grave gas observation window (12) in gas relay housing (1) front and rear surfaces The side away from the electrical appliance kit (100) in gas relay housing (1) front and rear surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177795.9U CN207149477U (en) | 2017-09-14 | 2017-09-14 | A kind of new gas relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177795.9U CN207149477U (en) | 2017-09-14 | 2017-09-14 | A kind of new gas relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207149477U true CN207149477U (en) | 2018-03-27 |
Family
ID=61667462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721177795.9U Active CN207149477U (en) | 2017-09-14 | 2017-09-14 | A kind of new gas relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207149477U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872887A (en) * | 2019-04-10 | 2019-06-11 | 广州市德百顺电气科技有限公司 | Gas relay protection device |
| CN111863522A (en) * | 2020-07-01 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Electronic gas relay |
| CN114740345A (en) * | 2022-05-12 | 2022-07-12 | 北京中瑞和电气有限公司 | External capacitive digital gas relay and online monitoring system |
-
2017
- 2017-09-14 CN CN201721177795.9U patent/CN207149477U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872887A (en) * | 2019-04-10 | 2019-06-11 | 广州市德百顺电气科技有限公司 | Gas relay protection device |
| CN111863522A (en) * | 2020-07-01 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Electronic gas relay |
| CN114740345A (en) * | 2022-05-12 | 2022-07-12 | 北京中瑞和电气有限公司 | External capacitive digital gas relay and online monitoring system |
| CN114740345B (en) * | 2022-05-12 | 2023-04-07 | 北京中瑞和电气有限公司 | External capacitive digital gas relay and online monitoring system |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210420 Address after: Yunda economic and Technological Development Zone in Yunnan province Kunming city 650217 West Road No. 105 Patentee after: YUNNAN POWER GRID CO., LTD. ELECTRIC POWER Research Institute Address before: Yunda economic and Technological Development Zone in Yunnan province Kunming city 650217 West Road No. 105 Patentee before: YUNNAN POWER GRID CO., LTD. ELECTRIC POWER Research Institute Patentee before: KUNMING ZHONGCHAO ELECTRIC EQUIPMENT Co.,Ltd. |