CN213402438U - Differential protection device of transformer - Google Patents
Differential protection device of transformer Download PDFInfo
- Publication number
- CN213402438U CN213402438U CN202022283153.5U CN202022283153U CN213402438U CN 213402438 U CN213402438 U CN 213402438U CN 202022283153 U CN202022283153 U CN 202022283153U CN 213402438 U CN213402438 U CN 213402438U
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- transformer
- protection device
- differential protection
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- guard box
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Abstract
The utility model discloses a differential protection device of transformer relates to differential protection device technical field, and for solving current differential protection device of transformer result of use not fine, the radiating effect is than poor problem simultaneously. The utility model discloses a fan, including the control panel, protection case, power supply block, fan, motor, dustproof filter screen, protection case and dustproof filter screen, the guard box is installed to one side of control panel, and the control panel passes through bolted connection with the guard box, the top and the below of guard box all are provided with the vent, and the vent is provided with a plurality of, the internally mounted of guard box opposite side has heat dissipation bellows, the internally mounted of guard box opposite side has the detection case, the power supply block is installed to the below of the inside opposite side of detection case, the internally mounted of heat dissipation bellows has the mounting panel, the fan is installed to one side of mounting panel, the motor is installed to the opposite side.
Description
Technical Field
The utility model relates to a differential protection device technical field specifically is differential protection device of transformer.
Background
The transformer differential protection device is mainly used for protecting transformer equipment, and the transformer differential protection device is provided with differential quick-break protection and compound rate differential protection with or without secondary harmonic braking, CAN be used for three-side differential current input occasions (three-turn transformer) to the maximum extent, has complete and powerful acquisition functions on voltage and current analog quantity and switching quantity of primary equipment, is provided with a standard RS forty-eighty five and industrial CAN communication port, and realizes the protection and measurement and control functions of three-turn main transformer differential protection, two-turn distribution transformer differential protection, non-electric quantity protection and the like through reasonable configuration.
However, the existing transformer differential protection device has poor use effect and poor heat dissipation effect; therefore, the existing requirements are not met, and the transformer differential protection device is provided for the requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a differential protection device of transformer to it is not very good to provide current differential protection device of transformer result of use among the above-mentioned background art of solution, and the radiating effect is than poor problem simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: differential protection device of transformer, including the control panel, the guard box is installed to one side of control panel, and the control panel passes through bolted connection with the guard box, the top and the below of guard box all are provided with the vent, and the vent is provided with a plurality of, the internally mounted of guard box opposite side has heat dissipation bellows, the internally mounted of guard box has the detection case, the power supply piece is installed to the below of the inside opposite side of detection case.
Preferably, the internally mounted of heat dissipation bellows has the mounting panel, the fan is installed to one side of mounting panel, the motor is installed to the opposite side of mounting panel, dustproof filter screen is all installed to the inside top of guard box and below, and the guard box passes through the screw connection with dustproof filter screen.
Preferably, the display screen is installed to the opposite side of control panel, the relay is installed to inside one side of detection case, the wire connecting block is installed to the inside below of detection case, the connecting pipe is installed to the below of wire connecting block, and the connecting pipe is provided with two, wire connecting block and connecting pipe sealing connection.
Preferably, a current and voltage disconnector is installed above the wire connecting block, a current and voltage transformer is installed above the current and voltage disconnector, the number of the current and voltage transformers is three, and a recorder is installed above the current and voltage transformer.
Preferably, the mounting bar is all installed to the both sides of guard box, the fixed strip is installed to one side of mounting bar, the stopper is installed to one side of mounting bar, and mounting bar and stopper welded connection.
Preferably, the top and the below of stopper all are provided with the mounting groove, the internally mounted of mounting groove has the spring, and the spring is provided with a plurality of.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an at the internally mounted current-voltage transformer of detection case, current-voltage transformer plays the effect of protection register, prevents that the register from meetting the high current and being destroyed, and the data of the electric current that the recorder was used for recording the transformer and passed through, voltage, makes things convenient for the operator to detect the record, through the outside installation guard box at the detection case, the guard box plays the effect of protection detection case, makes the transformer differential protection device whole firmer, is difficult to be destroyed and is difficult to leak electricity simultaneously, has effectively promoted the result of use of detection case;
2. the utility model discloses an internally mounted heat dissipation bellows in protection box one side, the inside fan of heat dissipation bellows rotates for the radiating effect of the inside electronic component of detection case, prevent that the inside high temperature of detection case, influence the radiating result of use of electronic component, through installing mounting bar and fixed strip in the both sides of protection box, the stopper of fixed strip one side is installed in the inside of mounting bar, install the spring in the mounting groove of stopper top and below, the spring has fine elasticity, play for protection box absorbing effect, prevent that external vibrations from making the inside electronic component of detection case drop.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of the inside structure of the detection box of the present invention;
fig. 3 is a cross-sectional view of the mounting bar of the present invention.
In the figure: 1. a control panel; 2. a protection box; 3. a vent; 4. a heat dissipation air box; 5. mounting a plate; 6. a fan; 7. a motor; 8. a dustproof filter screen; 9. a detection box; 10. a display screen; 11. a relay; 12. a wire connecting block; 13. a connecting pipe; 14. a power supply block; 15. a current-voltage disconnector; 16. a current-voltage transformer; 17. a recorder; 18. mounting a bar; 19. a fixing strip; 20. a limiting block; 21. mounting grooves; 22. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: differential protection device of transformer, including control panel 1, guard box 2 is installed to one side of control panel 1, and control panel 1 passes through bolted connection with guard box 2, simple structure, the form is various, and the practicality is strong, convenient operation, connect reliably, the top and the below of guard box 2 all are provided with vent 3, and vent 3 is provided with a plurality of, the internally mounted of 2 opposite sides of guard box has heat dissipation bellows 4, the internally mounted of 2 guard box has detection case 9, power supply block 14 is installed to the below of the inside opposite side of detection case 9.
Further, the internally mounted of heat dissipation bellows 4 has mounting panel 5, and fan 6 is installed to one side of mounting panel 5, and motor 7 is installed to the opposite side of mounting panel 5, and dustproof filter screen 8 is all installed to inside top and the below of guard box 2, and guard box 2 passes through the screw connection with dustproof filter screen 8, installs and removes the convenience, does benefit to the maintenance, can increase the pretightning force and prevents not hard up, can not arouse junction material composition phase transition.
Further, display screen 10 is installed to control panel 1's opposite side, and relay 11 is installed to the inside one side of detection case 9, and wire connecting block 12 is installed to the inside below of detection case 9, and connecting pipe 13 is installed to wire connecting block 12's below, and connecting pipe 13 is provided with two, wire connecting block 12 and connecting pipe 13 sealing connection, and fatigue resistance is good, has good leakproofness, insulating nature and corrosion protection.
Further, a current-voltage disconnector 15 is installed above the wire connecting block 12, a current-voltage transformer 16 is installed above the current-voltage disconnector 15, the number of the current-voltage transformers 16 is three, a recorder 17 is installed above the current-voltage transformer 16, and the recorder 17 is used for recording current and voltage data of the transformer, so that an operator can conveniently detect and record the data.
Furthermore, mounting bars 18 are mounted on two sides of the protection box 2, fixing bars 19 are mounted on one sides of the mounting bars 18, limiting blocks 20 are mounted on one sides of the mounting bars 18, the mounting bars 18 are connected with the limiting blocks 20 in a welding mode, the welding connection is good in air tightness and water tightness, structural rigidity is high, structural integrity is good, labor and time are saved, the sectional area of materials is not reduced, and the materials are fully utilized.
Further, stopper 20's top and below all are provided with mounting groove 21, and the internally mounted of mounting groove 21 has spring 22, and spring 22 is provided with a plurality of, and spring 22 has fine elasticity, plays for 2 absorbing effects of guard box, prevents that external vibrations from making the inside electronic component of detection case 9 drop.
The working principle is as follows: when the protective box is used, the fixing strips 19 on the mounting strips 18 on the two sides of the protective box 2 are firstly mounted at required positions, the limiting block 20 on one side of the fixing strip 19 is mounted inside the mounting strip 18, the springs 22 are mounted in the mounting grooves 21 above and below the limiting block 20, the springs 22 have good elasticity and play a role in damping the protective box 2 to prevent the electronic elements inside the protective box 9 from falling off due to external vibration, the electric wires on the transformer are inserted into the connecting pipe 13 below the protective box 2, the connecting pipe 13 is connected with the electric wire connecting block 12 below the inside of the protective box 9 inside the protective box 2, then the range of protective voltage and current is input to the display screen 10 on the control panel 1 on one side of the protective box 2, information is transmitted to the relay 11 on one side inside the protective box 9 inside the protective box 2 through the display screen 10, when the current is too large, the current and voltage disconnector, thereby play the effect of protection transformer, the internally mounted current-voltage transformer 16 of detection case 9, current-voltage transformer 16 can become the low-voltage with the high-voltage, the heavy current becomes the undercurrent, play the effect of protection current-voltage transformer 16 top register 17, prevent that register 17 from meetting the high current and being destroyed, register 17 is used for the electric current that the recording transformer passed through, the data of voltage, make things convenient for the operator to detect the record, through the internally mounted heat dissipation bellows 4 in protection case 2 one side, the work of motor 7 of heat dissipation bellows 4 inside mounting panel 5 one side drives the output and rotates, the output rotates and drives fan 6 and rotate, fan 6 rotates for the radiating effect of the inside electronic component of detection case 9, prevent the inside high temperature of detection case 9, influence the radiating result of use of electronic component.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Differential protection device of transformer, including control panel (1), its characterized in that: protection box (2) are installed to one side of control panel (1), and control panel (1) passes through bolted connection with protection box (2), the top and the below of protection box (2) all are provided with vent (3), and vent (3) are provided with a plurality of, the internally mounted of protection box (2) opposite side has heat dissipation bellows (4), the internally mounted of protection box (2) has detection case (9), power pack (14) are installed to the below of the inside opposite side of detection case (9).
2. The transformer differential protection device of claim 1, wherein: the internally mounted of heat dissipation bellows (4) has mounting panel (5), fan (6) are installed to one side of mounting panel (5), motor (7) are installed to the opposite side of mounting panel (5), dustproof filter screen (8) are all installed to the top and the below of guard box (2) inside, and guard box (2) pass through the screw connection with dustproof filter screen (8).
3. The transformer differential protection device of claim 1, wherein: display screen (10) are installed to the opposite side of control panel (1), relay (11) are installed to inside one side of detection case (9), wire connecting block (12) are installed to the inside below of detection case (9), connecting pipe (13) are installed to the below of wire connecting block (12), and connecting pipe (13) are provided with two, wire connecting block (12) and connecting pipe (13) sealing connection.
4. A transformer differential protection device according to claim 3, characterized in that: current-voltage disconnector (15) are installed to the top of wire connecting block (12), current-voltage transformer (16) are installed to the top of current-voltage disconnector (15), and current-voltage transformer (16) are provided with threely, recorder (17) are installed to the top of current-voltage transformer (16).
5. The transformer differential protection device of claim 1, wherein: mounting bar (18) are all installed to the both sides of guard box (2), fixed strip (19) are installed to one side of mounting bar (18), stopper (20) are installed to one side of mounting bar (18), and mounting bar (18) and stopper (20) welded connection.
6. The transformer differential protection device of claim 5, wherein: the top and the below of stopper (20) all are provided with mounting groove (21), the internally mounted of mounting groove (21) has spring (22), and spring (22) are provided with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283153.5U CN213402438U (en) | 2020-10-14 | 2020-10-14 | Differential protection device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283153.5U CN213402438U (en) | 2020-10-14 | 2020-10-14 | Differential protection device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213402438U true CN213402438U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022283153.5U Active CN213402438U (en) | 2020-10-14 | 2020-10-14 | Differential protection device of transformer |
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| CN (1) | CN213402438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2020
- 2020-10-14 CN CN202022283153.5U patent/CN213402438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN117169640B (en) * | 2023-11-02 | 2024-02-20 | 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 |
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