CN108565834A - A kind of Power transformer differential protective relaying device - Google Patents
A kind of Power transformer differential protective relaying device Download PDFInfo
- Publication number
- CN108565834A CN108565834A CN201810411668.3A CN201810411668A CN108565834A CN 108565834 A CN108565834 A CN 108565834A CN 201810411668 A CN201810411668 A CN 201810411668A CN 108565834 A CN108565834 A CN 108565834A
- Authority
- CN
- China
- Prior art keywords
- dust cover
- connection
- support base
- hole
- power transformer
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/045—Differential protection of transformers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Abstract
The invention discloses a kind of Power transformer differential protective relaying devices,Including support base,The upper surface of the support base is equipped with the first positioning bolt hole,The number that the inner side of first positioning bolt hole is equipped with the first positioning bolt hole of internal thread is four,Four the first positioning bolt holes are located at the quadrangle of support base,The outside of support base is connected with insulating layer by way of being molded in film,The upper surface of support base is equipped with dust cover,The interior lower end of dust cover is equipped with exterior shield net,It can be connected with external cable by external cabling seat,The junction of electric wire can be protected by anti-skin pad,So that protection is more convenient,The Power transformer differential protective relaying device is simple in structure,It is easy to operate,Not only transformer differential relay is protected,And transformer can be shielded,And so that the service life is longer for transformer,It provides a convenient.
Description
Technical field
The present invention relates to transformer technology field, specially a kind of Power transformer differential protective relaying device.
Background technology
Differential protective device of transformer should have fast differential over current protection and the complex ratio with or without secondary harmonic brake
Differential protection, maximum can be used for the occasion of three side difference streams inputs, have to primary equipment voltage and current analog quantity and switching value
Complete powerful acquisition function, outfit standard RS485 and industrial CAN communication mouth, and realize that three circle main transformers are poor by reasonable disposition
Protections and the observing and controlling functions such as dynamic protection, two circle transform er differential protections, two circle distribution transforming differential protections, non-ionizing energy loss, but it is existing
Apparatus structure it is complicated, installation is inconvenient, and function is less, and many inconvenience is brought for people.
Invention content
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of Power transformer differential relay protection
Device, it is simple in structure, it is easy to operate, transformer differential relay can not only be protected, and transformer can be carried out
Shielding, and make transformer the service life is longer, provide a convenient, can effectively solve asking in background technology
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of Power transformer differential protective relaying device,
Including support base, the upper surface of the support base is equipped with the first positioning bolt hole, the inner side of the first positioning bolt hole
Equipped with internal thread, the number of the first positioning bolt hole is four, and four the first positioning bolt holes are located at the four of support base
The outside at angle, support base is connected with insulating layer by way of being molded in film, and the upper surface of support base is equipped with dust cover,
The interior lower end of dust cover is equipped with exterior shield net, the lower end of exterior shield net by bolted connection with dust cover
Interior lower end connection, the lower end outside of dust cover is equipped with connection socle, and the left side of the dust cover is equipped with through-hole, through-hole
Outside be welded with air inlet pipe, filter screen has been bolted in the inner right side of air inlet pipe, and the left side of filter screen is equipped with activity
The right side upper end of charcoal filter layer, the dust cover is equipped with through-hole, and the outside of the through-hole is connected with outlet by way of bolt
Pipe, the junction of escape pipe and dust cover are equipped with guard ring, and escape pipe is L-type structure, and escape pipe it is separate with it is dust-proof outer
One end of shell connection is downward, and support column is equipped on the inside of one end that the escape pipe is connect with dust cover, and the number of support column is
Four, four support columns are connect with escape pipe by welding, and four support columns are uniformly distributed around the center of escape pipe,
And exhausting motor, the output shaft of exhausting motor is bolted between the separate one end connected escape pipe of four support columns
Blowing fan blade has been bolted, has been set on blowing fan blade there are four blade of drying, four blowing blades surround exhausting motor
Output axis center is uniformly distributed, and the side lower end of the dust cover is equipped with through-hole groove, and the inside of the through-hole groove passes through spiral shell
It tethers the mode connect and is connected with external cabling seat, control babinet, institute has been bolted on the upside of one end of the dust cover
The side for stating control babinet is equipped with opening, and the side of the opening is equipped with connection chamber door, and connection chamber door is by way of hinge connection
With control babinet connect, control babinet interior side be equipped with insulation plank, insulation plank glue paste by way of and control
PLC controller has been bolted in the side of babinet connection processed, the plank that insulate, and the interior side upper end of the dust cover is logical
It crosses and has been bolted current detection sensor, and the input terminal of the output end electrical connection PLC controller of current detection sensor,
The output end of the input terminal electrical connection external power supply of the PLC controller, the output end electrical connection exhausting motor of PLC controller
Input terminal.
As a preferred technical solution of the present invention, the upper surface of the support base is equipped with protection groove, and protection is recessed
Slot is corresponding up and down with dust cover, and the lower end of dust cover is located at the protection inside grooves of support base, and supports bottom
The protection inside grooves of seat are equipped with guard ring, and guard ring is pasted by glue and support base.
As a preferred technical solution of the present invention, the dust cover is internally provided with temperature sensor, and temperature passes
Sensor is connect with dust cover by bolted connection, and temperature sensor is located at the inside top surface of dust cover, and temperature
Spend the input terminal of the output end electrical connection PLC controller of sensor.
As a preferred technical solution of the present invention, the air inlet pipe is internally provided with lime water accepting layer, lime water suction
Layer is located at the left side of activated carbon filter layer, and air inlet pipe is equipped with protective net frame, protection far from one end inside that dust cover connects
Rack is connect with air inlet pipe by bolted connection.
As a preferred technical solution of the present invention, the number of the connection socle is four, four connection socles point
Not Wei Yu dust cover four sides among lower end, it is described connection socle centre be equipped with through-hole, the upper surface of support base is equipped with
Second bolt hole, the second bolt hole and the through-hole of connection socle are corresponding up and down.
As a preferred technical solution of the present invention, the connection chamber door side opposite with babinet is controlled is equipped with anti-skidding
Groove circle, antiskid groove circle are corresponded with the open edge of control babinet, and antiskid groove circle is internally provided with sealing ring, closing
Circle glue stickup by way of with connect chamber door connect.
As a preferred technical solution of the present invention, the separate side being connect with control babinet of connection chamber door is equipped with
Closed lock, the side of the connection chamber door, which is equipped with, has been bolted lock bearing, and lock bearing is corresponded with closed lock,
The number of the closed lock is two, and the number of the lock bearing is two.
As a preferred technical solution of the present invention, the external cabling seat be located at dust cover side set there are two
The side of wiring hole, wiring hole is equipped with anti-skin pad, and anti-skin pad is connect with external cabling seat by way of glue stickup, prevented
Skin pad is pyramidal structure.
As a preferred technical solution of the present invention, the outside of the dust cover and control babinet is equipped with insulated hull
Pad, and dust cover and control babinet are connect by way of being molded in film with insulated leather cushion, and control the inside top of babinet
Face is equipped with headlamp, the output end of the input terminal electrical connection PLC controller of headlamp.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present invention can be supported transformer by support base, can be carried out device by the first positioning bolt hole
It is fixed so that fixing device is more convenient, can be protected transformer by dust cover so that more to transformer protection
Add comprehensively, dust cover can be fixed on to support base upper surface by connecting socle, not only fixing device is more convenient, is
People provide a convenient.
2, the present invention can be introduced air into inside dust cover by air inlet pipe, pass through activated carbon filter layer and lime
Water accepting layer can be filtered dust in air and moisture so that and it is more convenient to gas filtration, prevent the dust in air
Transformer being caused to damage with moisture so that transformer protect more convenient so that the service life is longer for transformer,
It can be protected by protective net frame so that protection is more comprehensive.
3, the present invention by exhausting motor can drive blowing fan blade to rotate, can will be in dust cover by blowing fan blade
Gas extraction, radiated to transformer with this so that heat dissipation effect is more preferable, provides a convenient, and is examined by electric current
The electric current of transformer can be detected by surveying sensor so that detection is more convenient so as to transformer differential relay protection
More comprehensively.
4, the present invention can be detected dust cover internal temperature by temperature sensor so that detection is more square
Just, and detection data can be sent in PLC controller by temperature sensor so that detection is more convenient, passes through external screen
Power transformer differential relay can be shielded by covering net so that protection is more convenient so that protection is more convenient.
5, the present invention can be connected by external cabling seat with external cable, can be to the connection of electric wire by anti-skin pad
Place is protected so that protection is more convenient, and the Power transformer differential protective relaying device is simple in structure, easy to operate, no
But transformer differential relay can be protected, and transformer can be shielded, and transformer is made to use the longevity
It orders longer, provides a convenient.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is side structure schematic diagram of the present invention；
Fig. 3 is cross-sectional view of the present invention.
In figure：1 dust cover, 2 control babinets, 3 connection chamber doors, 4 closed locks, 5 rubber sealing rings, 6 PLC controllers,
7 connection socles, 8 first positioning bolt holes, 9 lock bearings, 10 escape pipes, 11 air inlet pipe, 12 protective net frames, 13 support bases,
14 external cabling seats, 15 exterior shield nets, 16 filter screens, 17 activated carbon filter layers, 18 lime water accepting layers, 19 current detectings sensing
Device, 20 temperature sensors, 21 exhausting motors, 22 support columns, 23 blowing fan blades, 24 anti-skin pads, 25 second bolts hole.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of Power transformer differential protective relaying device, packet
Support base 13 is included, the upper surface of support base 13 is equipped with the first positioning bolt hole 8, the inner side of the first positioning bolt hole 8
Equipped with internal thread, the number of the first positioning bolt hole 8 is four, and four the first positioning bolt holes 8 are located at support base 13
Quadrangle, the outside of support base 13 is connected with insulating layer by way of being molded in film, and the upper surface of support base 13 is equipped with
Dust cover 1 can be supported transformer by support base 13, by the first positioning bolt hole 8 can by device into
Row is fixed so that fixing device is more convenient, and the interior lower end of dust cover 1 is equipped with exterior shield net 15, exterior shield net 15
Lower end connect by bolted connection with the interior lower end of dust cover 1, the lower end outside of dust cover 1 is equipped with connection
The left side of socle 7, dust cover 1 is equipped with through-hole, is welded with air inlet pipe 11 on the outside of through-hole, the inner right side of air inlet pipe 11 passes through
It is bolted filter screen 16, the left side of filter screen 16 is equipped with activated carbon filter layer 17, and the right side upper end of dust cover 1, which is equipped with, to be led to
Hole, the outside of the through-hole are connected with escape pipe 10 by way of bolt, and the junction of escape pipe 10 and dust cover 1 is equipped with anti-
Guard ring, escape pipe 10 are L-type structure, and separate one end connect with dust cover 1 of escape pipe 10 is downward, escape pipe 10 with prevent
Support column 22 is equipped on the inside of one end that dirt shell 1 connects, the number of support column 22 is four, and four support columns 22 pass through welding
Mode is connect with escape pipe 10, and four support columns 22 are uniformly distributed around the center of escape pipe 10, and four support columns 22 are separate
Exhausting motor 21 is bolted between the one end being connect with escape pipe 10, the output shaft of exhausting motor 21 is connected by bolt
It is connected to blowing fan blade 23, is set on blowing fan blade 23 there are four blade of drying, four blowing blades surround the output of exhausting motor 21
Axis center is uniformly distributed, and blowing fan blade 23 can be driven to rotate by exhausting motor 21, can will be dust-proof by blowing fan blade 23
Gas extraction in shell 1, radiates to transformer with this so that heat dissipation effect is more preferable, and the side lower end of dust cover 1 is set
There is through-hole groove, the inside of the through-hole groove is connected with external cabling seat 14 by bolted connection, and the one of dust cover 1
Control babinet 2 has been bolted in end upside, and the side of control babinet 2 is equipped with opening, and the side of the opening is equipped with connecting box
Door 3, connection chamber door 3 are connect by way of hinge connection with control babinet 2, and the interior side of control babinet 2 is equipped with insulation wood
Plate, insulation plank are connect by way of glue stickup with control babinet 2, and PLC has been bolted in the side for the plank that insulate
Current detection sensor 19 has been bolted in the interior side upper end of controller 6, dust cover 1, and current detecting passes
The input terminal of the output end electrical connection PLC controller 6 of sensor 19, can be to the electric current of transformer by current detection sensor 19
It is detected so that detection is more convenient so that, the input terminal of PLC controller 6 more comprehensive to transformer differential relay protection
It is electrically connected the output end of external power supply, the input terminal of the output end electrical connection exhausting motor 21 of PLC controller 6, support base 13
Upper surface be equipped with protection groove, protection groove it is corresponding with about 1 dust cover, and the lower end of dust cover 1 positioned at support
The protection inside grooves of pedestal 13, and the protection inside grooves of support base 13 be equipped with guard ring, guard ring by glue with
Support base 13 is pasted, by protecting groove and dust cover 1 to connect so that dust cover 1 is connect more with support base 13
Securely, dust cover 1 is internally provided with temperature sensor 20, temperature sensor 20 by bolted connection with dust cover
1 connection, temperature sensor 20 are located at the inside top surface of dust cover 1, and the output end electrical connection PLC controls of temperature sensor 20
The input terminal of device 6 processed can be detected 1 internal temperature of dust cover by temperature sensor 20 so that detection is more square
Just, and detection data can be sent in PLC controller 6 by temperature sensor 20 so that detect more convenient, air inlet pipe 11
Be internally provided with lime water accepting layer 18, lime water accepting layer 18 is located at the left side of activated carbon filter layer 17, can be with by air inlet pipe 11
Introduce air into inside dust cover 1, by activated carbon filter layer 17 and lime water accepting layer 18 can to dust in air and
Moisture is filtered so that and it is more convenient to gas filtration, prevent dust and moisture in air from causing to damage to transformer, and
Protective net frame 12, the side that protective net frame 12 is bolted are equipped on the inside of one end that air inlet pipe 11 is connected far from dust cover 1
Formula is connect with air inlet pipe 11, can be protected device by protective net frame 12 so that protection is more comprehensive, connects socle 7
Number be four, four connection socles 7 are located at lower end among four sides of dust cover 1, and the centre of connection socle 7 is equipped with
Through-hole, the upper surface of support base 13 are equipped with the second bolt hole 25, the second bolt hole 25 with to connect the through-hole of socle 7 or more right
It answers, the upper surface that dust cover 1 can be fixed on to support base 13 is connected by the second bolt hole 25 and connection socle 7, even
It connects the side opposite with babinet 2 is controlled of chamber door 3 and is equipped with antiskid groove circle, the open edge phase of antiskid groove circle and control babinet 2
Mutually corresponding, antiskid groove circle is internally provided with sealing ring, sealing ring by way of glue stickup with connect the connection of chamber door 3, it is logical
Cross sealing ring make connect chamber door 3 and control babinet 2 between connect it is even closer, connection chamber door 3 it is separate with control babinet 2 connect
Side be equipped with closed lock 4, the side of connection chamber door 3, which is equipped with, has been bolted lock bearing 9, latches bearing 9 and Sealed lock
Button 4 corresponds, and the number of closed lock 4 is two, and the number of lock bearing 9 is two, passes through closed lock 4 and lock branch
Seat 9 connects so that connection chamber door 3 connect more secured with babinet 2 is controlled, and external cabling seat 14 is located at the side of dust cover 1
If there are two wiring hole, the side of wiring hole is equipped with anti-skin pad 24, and anti-skin pad 24 is by way of glue stickup and external
Junction block 14 connects, and anti-skin pad 24 is pyramidal structure, can be protected the junction of electric wire, is made by anti-skin pad 24
Must protect it is more convenient, dust cover 1 and control babinet 2 outside be equipped with insulated leather cushion, and dust cover 1 and control babinet 2
Connect with insulated leather cushion by way of being molded in film, and control babinet 2 inside top surface be equipped with headlamp, headlamp it is defeated
The output end for entering end electrical connection PLC controller 6 can illuminate the inside for controlling babinet 2 by headlamp, which becomes
The differential protective relaying device of depressor is simple in structure, easy to operate, can not only protect transformer differential relay, Er Qieke
To be shielded to transformer, and make transformer the service life is longer, provide a convenient.
When in use：Transformer is supported by support base 13, is carried out device by the first positioning bolt hole 8
It is fixed, dust cover 1 is then fixed on 13 upper surface of support base by connecting socle 7, and will be empty by air inlet pipe 11
Gas is imported into inside dust cover 1, is carried out to dust in air and moisture by activated carbon filter layer 17 and lime water accepting layer 18
Filtering, prevents dust and moisture in air from causing to damage to transformer so as to transformer protect more convenient, passes through
Exhausting motor 21 can drive blowing fan blade 23 to rotate, by blowing fan blade 23 can by the gas extraction in dust cover 1, with
This radiates to transformer, can be detected to the electric current of transformer by current detection sensor 19, passes through external screen
It covers net 15 and shielding protection is carried out to Power transformer differential relay.
The present invention by exhausting motor 21 can drive blowing fan blade 23 rotate, by blowing fan blade 23 can will it is dust-proof outside
Gas extraction in shell 1, radiates to transformer with this so that heat dissipation effect is more preferable, can be right by exterior shield net 15
Power transformer differential relay is shielded so that protection is more convenient so that controls more convenient, the Power transformer differential
Protective relaying device is simple in structure, easy to operate, can not only protect transformer differential relay, and can be to transformation
Device is shielded, and make transformer the service life is longer, provide a convenient.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of Power transformer differential protective relaying device, including support base（13）, it is characterised in that：The support base
（13）Upper surface be equipped with the first positioning bolt hole（8）, the first positioning bolt hole（8）Inner side be equipped with internal thread, first
Positioning bolt hole（8）Number be four, four the first positioning bolt holes（8）It is located at support base（13）Quadrangle, branch
Support pedestal（13）Outside insulating layer, support base are connected with by way of being molded in film（13）Upper surface be equipped with it is dust-proof outer
Shell（1）, dust cover（1）Interior lower end be equipped with exterior shield net（15）, exterior shield net（15）Lower end connected by bolt
The mode and dust cover connect（1）Interior lower end connection, dust cover（1）Lower end outside be equipped with connection socle（7）, described
Dust cover（1）Left side be equipped with through-hole, be welded with air inlet pipe on the outside of through-hole（11）, air inlet pipe（11）Inner right side pass through
It has been bolted filter screen（16）, filter screen（16）Left side be equipped with activated carbon filter layer（17）, the dust cover（1）The right side
Side upper end is equipped with through-hole, and the outside of the through-hole is connected with escape pipe by way of bolt（10）, escape pipe（10）Outside dust-proof
Shell（1）Junction be equipped with guard ring, escape pipe（10）For L-type structure, and escape pipe（10）Separate and dust cover（1）Even
The one end connect is downward, the escape pipe（10）With dust cover（1）Support column is equipped on the inside of one end of connection（22）, support column
（22）Number be four, four support columns（22）By welding with escape pipe（10）Connection, four support columns（22）
Around escape pipe（10）Center be uniformly distributed, and four support columns（22）Separate and escape pipe（10）Lead between one end of connection
It crosses and has been bolted exhausting motor（21）, exhausting motor（21）Output shaft blowing fan blade has been bolted（23）, blowing
Flabellum（23）On set there are four dry blade, four blowing blades surround exhausting motor（21）Output axis center be uniformly distributed,
The dust cover（1）Side lower end be equipped with through-hole groove, the inside of the through-hole groove connects by bolted connection
There is external cabling seat（14）, the dust cover（1）One end on the upside of control babinet has been bolted（2）, the control
Babinet（2）Side be equipped with opening, the side of the opening is equipped with connection chamber door（3）, connect chamber door（3）Pass through the side of hinge connection
Formula and control babinet（2）Connection controls babinet（2）Interior side be equipped with insulation plank, insulation plank is pasted by glue
Mode and control babinet（2）Connection, PLC controller has been bolted in the side for the plank that insulate（6）, the dust cover
（1）Interior side upper end current detection sensor has been bolted（19）, and current detection sensor（19）It is defeated
Outlet is electrically connected PLC controller（6）Input terminal, the PLC controller（6）Input terminal electrical connection external power supply output
End, PLC controller（6）Output end be electrically connected exhausting motor（21）Input terminal.
2. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The support bottom
Seat（13）Upper surface be equipped with protection groove, protect groove and dust cover（1）It is corresponding up and down, and dust cover（1）Under
End is located at support base（13）Protection inside grooves, and support base（13）Protection inside grooves be equipped with guard ring, prevent
Guard ring passes through glue and support base（13）It pastes.
3. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：It is described dust-proof outer
Shell（1）Be internally provided with temperature sensor（20）, temperature sensor（20）By bolted connection with dust cover（1）Even
It connects, temperature sensor（20）Positioned at dust cover（1）Inside top surface, and temperature sensor（20）Output end electrical connection
PLC controller（6）Input terminal.
4. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The air inlet pipe
（11）Be internally provided with lime water accepting layer（18）, lime water accepting layer（18）Positioned at activated carbon filter layer（17）Left side, and air inlet
Pipe（11）Far from dust cover（1）Protective net frame is equipped on the inside of one end of connection（12）, protective net frame（12）It is bolted
Mode and air inlet pipe（11）Connection.
5. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The connecting pin
Column（7）Number be four, four connection socles（7）It is located at dust cover（1）Four sides among lower end, the connection
Socle（7）Centre be equipped with through-hole, support base（13）Upper surface be equipped with the second bolt hole（25）, the second bolt hole（25）With
Connect socle（7）Through-hole it is corresponding up and down.
6. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The connecting box
Door（3）With control babinet（2）Opposite side is equipped with antiskid groove circle, antiskid groove circle and control babinet（2）Open edge
Correspond, antiskid groove circle is internally provided with sealing ring, sealing ring by way of glue stickup with connect chamber door（3）Even
It connects.
7. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The connecting box
Door（3）It is separate with control babinet（2）The side of connection is equipped with closed lock（4）, the connection chamber door（3）Side be equipped with bolt
It is connected with lock bearing（9）, latch bearing（9）With closed lock（4）It corresponds, the closed lock（4）Number be two
It is a, the lock bearing（9）Number be two.
8. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：The outside connects
Line seat（14）Positioned at dust cover（1）Side set there are two wiring hole, the side of wiring hole is equipped with anti-skin pad（24）, protection
Leather packing（24）Glue stickup by way of with external cabling seat（14）Connection, anti-skin pad（24）For pyramidal structure.
9. a kind of Power transformer differential protective relaying device according to claim 1, it is characterised in that：It is described dust-proof outer
Shell（1）With control babinet（2）Outside be equipped with insulated leather cushion, and dust cover（1）With control babinet（2）Pass through what is be molded in film
Mode is connect with insulated leather cushion, and controls babinet（2）Inside top surface be equipped with headlamp, the input terminal of headlamp is electrically connected
PLC controller（6）Output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411668.3A CN108565834A (en) | 2018-05-02 | 2018-05-02 | A kind of Power transformer differential protective relaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411668.3A CN108565834A (en) | 2018-05-02 | 2018-05-02 | A kind of Power transformer differential protective relaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108565834A true CN108565834A (en) | 2018-09-21 |
Family
ID=63537772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411668.3A Pending CN108565834A (en) | 2018-05-02 | 2018-05-02 | A kind of Power transformer differential protective relaying device |
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| CN (1) | CN108565834A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099548A (en) * | 2020-09-30 | 2020-12-18 | 重庆旷闻科技咨询有限公司 | Integrated monitoring system integration based on enterprise quality management |
| CN117169640A (en) * | 2023-11-02 | 2023-12-05 | 云南电力试验研究院(集团)有限公司 | Multiple ratio differential verification method and device under multi-distributed new energy access feeder line |
| CN117368712A (en) * | 2023-10-13 | 2024-01-09 | 南京国电南思科技发展股份有限公司 | Device, system and method for detecting equipment state of power relay protection device |
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