CN217933660U - Circuit breaker of external combined sensor - Google Patents
Circuit breaker of external combined sensor Download PDFInfo
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- CN217933660U CN217933660U CN202220985672.2U CN202220985672U CN217933660U CN 217933660 U CN217933660 U CN 217933660U CN 202220985672 U CN202220985672 U CN 202220985672U CN 217933660 U CN217933660 U CN 217933660U
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- circuit breaker
- combined sensor
- sensor
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- sealing strip
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Abstract
The utility model discloses a circuit breaker of external combination formula sensor, utmost point post and supporting component fix on casing assembly, combination formula sensor and sealed the pad pass in proper order and fix the conducting rod on utmost point post, casing assembly's strake outside is equipped with the boss, the sealing strip is placed between boss and shell, even after sealing strip below is scribbled sealed fat, the unsettled condition of sealing strip skew can not appear yet, sealing effect has been improved effectively, and then the protection level of circuit breaker complete machine has been improved, the fail safe nature is high, be equipped with winding coil's iron core T1 and T2 in the combination formula sensor, high-voltage capacitor C and low voltage electric capacity Cd, only need install three combination formula sensors additional and can export three phase current simultaneously, zero sequence current and zero sequence voltage signal, be convenient for install in the workshop, this structure partial discharge can obtain effective control, under 1.2 times Ur, the partial discharge is less than or equal to 5pC, and then can effectively reduce the complete machine partial discharge of circuit breaker.
Description
Technical Field
The utility model relates to a circuit breaker of external combination formula sensor.
Background
The conventional one-time and two-time fusion breaker required by state network bidding: the circuit breaker needs to install two kinds of materials of electromagnetic type current transformer and zero sequence voltage sensor additional simultaneously, and this structure not only is not convenient for the workshop installation, because of the mutual inductance of electromagnetic type current need dispose independent zero sequence moreover, because of the unable effective control partial discharge of self structural problem, can't satisfy the complete machine partial discharge requirement. The existing shell edge strip of the circuit breaker is a plane, the sealing strip is made of silicon rubber, and particularly after sealing grease is coated on the lower portion of the sealing strip, when the sealing strip is fastened by bolts, the sealing strip can laterally move in a suspension mode, the sealing effect is influenced, the whole protection level of the circuit breaker is further influenced, rainwater can enter the shell from the position of the offset of the sealing strip at the bottom of the circuit breaker, and the safety and reliability are poor. Therefore, it is imperative to design a circuit breaker with an external combined sensor which is convenient for workshop installation, small in complete machine partial discharge and high in protection level.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be convenient for workshop installation, complete machine office put little and protect the high circuit breaker of external combination formula sensor of grade.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a circuit breaker of external combination formula sensor which characterized by: the terminal and the supporting component are fixed on the shell component, the conducting rod is fixed on the terminal, the combined sensor and the sealing gasket sequentially penetrate through the conducting rod, the lower outgoing line is fixed on the conducting rod, the sealing strip is placed at the bottom of the shell component, and the bottom cover plate is placed on the sealing strip and fixed on the shell component.
The sealing gasket is tightly attached to the combined type sensor and the pole.
The combined sensor is internally poured with epoxy resin, the outside of the combined sensor is wrapped with a silicon rubber sheath, the outside of the silicon rubber sheath is provided with a conducting strip, and the bottom of the combined sensor is provided with a wire outlet pipe.
And reinforcing ribs are arranged on two sides of the supporting plate of the supporting component.
The shell of the shell assembly is welded with a stud and an edge strip, and a boss is arranged outside the edge strip.
The lower outgoing line is tightly attached to the conducting plate.
The silicon rubber sheath is provided with a climbing-increasing umbrella skirt, an umbrella skirt A and an umbrella skirt B are arranged below the climbing-increasing umbrella skirt, and the bottom of the climbing-increasing umbrella skirt is provided with a silicon rubber soft sleeve.
The supporting plate is provided with a semi-elliptical hole, a waist-shaped hole and a square opening.
The utility model has the advantages that three combined sensors are only needed to be added to output three-phase current, zero-sequence current and zero-sequence voltage signals simultaneously, which is convenient for workshop installation; the combined sensor adopts a three-phase synthesis zero sequence principle, partial discharge of the structure can be effectively controlled, under 1.2 times of Ur, the partial discharge is less than or equal to 5pC, and then the partial discharge of the whole circuit breaker can be effectively reduced; the boss is arranged on the outer side of the edge strip, the sealing strip is placed between the shell and the boss, and even after sealing grease is coated on the lower portion of the sealing strip, the situation that the sealing strip deviates and is suspended cannot occur, so that the sealing effect is effectively improved, the protection level of the whole breaker is further improved, and the safety and reliability are high.
Drawings
Fig. 1 is a schematic structural diagram of the circuit breaker with the external combined sensor of the present invention;
fig. 2 is a front view of the circuit breaker with the external combined sensor of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2;
FIG. 4 is a schematic structural view of the combined sensor of the present invention;
FIG. 5 is a schematic structural view of the support assembly of the present invention;
FIG. 6 is a schematic structural view of the housing assembly of the present invention;
FIG. 7 is an enlarged view at B of FIG. 6;
FIG. 8 is a partial schematic view of the housing assembly and the seal strip of the present invention;
FIG. 9 is a schematic diagram of the current portion of the combined sensor of the present invention;
fig. 10 is a secondary schematic diagram of the zero sequence voltage part of the combined sensor of the present invention.
In the figure: 1. a lower outgoing line; 2. a combination sensor; 3. a gasket; 4. a pole column; 5. a support assembly; 6. a housing assembly; 7. a conductive rod; 8. a seal strip; 9. a bottom cover plate; 201. a silicone rubber sheath; 202. a conductive sheet; 203. an epoxy resin; 204. a wire outlet pipe; 501. reinforcing ribs; 502. a support plate; 601. a stud 602, a boss; 603. a housing; 604. edging; 20101. a support leg A; 606. a support leg B; 607. a lower fixing plate; 20101. the umbrella skirt is added and climbed; 20102. an umbrella skirt A; 20103. an umbrella skirt B; 20104. a silica gel soft sleeve; 50201. a semi-elliptical hole; 50202. a waist-shaped hole; 50203. and (4) square opening.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-8, the utility model relates to a circuit breaker of external combination formula sensor, its characterized in that: utmost point post 4 and supporting component 5 are fixed on casing subassembly 6, and conducting rod 7 is fixed on utmost point post 4, and modular sensor 2 and sealed pad 3 pass conducting rod 7 in proper order, and lower 1 of being qualified for the next round of competitions is fixed on conducting rod 7, and sealing strip 8 is placed in casing subassembly 6 bottom, and bottom cover plate 9 is placed on sealing strip 8 and is fixed on casing subassembly 6.
The sealing gasket 3 is tightly attached to the combined sensor 2 and the pole 4.
The combined sensor 2 is internally poured with epoxy resin 203, the outside of the combined sensor is wrapped with a silicon rubber sheath 202, the outside of the silicon rubber sheath 202 is provided with a conducting strip 201, and the bottom of the combined sensor is provided with a wire outlet pipe 204.
Reinforcing ribs 501 are arranged on two sides of a supporting plate 502 of the supporting component 5.
The shell 603 of the shell assembly 6 is welded with a stud 601 and an edge strip 604, and a boss 602 is arranged outside the edge strip 604.
The lower outlet 1 is closely attached to the conductive sheet 201.
The silicone rubber sheath 202 is provided with a climbing-increasing umbrella skirt 20101, an umbrella skirt A20102 and an umbrella skirt B20103 are arranged below the climbing-increasing umbrella skirt, and the bottom of the climbing-increasing umbrella skirt is provided with a silicone rubber soft sleeve 20104.
The supporting plate 502 is provided with a semi-elliptical hole 50201, a waist-shaped hole 50202 and a square opening 50203.
As shown in fig. 9-10, the combined sensor 2 is internally provided with iron cores T1 and T2 wound with coils, a primary current I in the line respectively induces three phases ABC and zero sequence currents through the iron cores T1 and T2, the combined sensor 2 is internally provided with a high-voltage capacitor and a low-voltage capacitor, and a zero sequence voltage U0 is synthesized by the voltage of the primary three phases in the line respectively passing through the high-voltage capacitor C and the low-voltage capacitor Cd.
The utility model has the advantages that three combined sensors 2 are only needed to be added to output three-phase current, zero-sequence current and zero-sequence voltage signals simultaneously, which is convenient for workshop installation; the combined sensor 2 adopts a three-phase synthesis zero sequence principle, the partial discharge of the structure can be effectively controlled, under 1.2 times of Ur, the partial discharge is less than or equal to 5pC, and further the partial discharge of the whole circuit breaker can be effectively reduced; the boss 602 is arranged on the outer side of the edge strip 604, the sealing strip 8 is arranged between the shell 603 and the boss 602, and even after sealing grease is coated below the sealing strip 8, the situation that the sealing strip 8 deviates and is suspended cannot occur, so that the sealing effect is effectively improved, the protection level of the whole breaker is improved, and the safety and reliability are high.
Claims (8)
1. The utility model provides a circuit breaker of external combination formula sensor which characterized by: utmost point post (4) and supporting component (5) are fixed on casing assembly (6), and conducting rod (7) are fixed on utmost point post (4), and modular sensor (2) and sealed pad (3) pass conducting rod (7) in proper order, and lower outlet (1) is fixed on conducting rod (7), and sealing strip (8) are placed in casing assembly (6) bottom, and end cover board (9) are placed on sealing strip (8) and are fixed on casing assembly (6).
2. The circuit breaker with an external combined sensor as claimed in claim 1, wherein: the sealing gasket (3) is tightly attached to the combined sensor (2) and the pole (4).
3. The circuit breaker with the external combined sensor as claimed in claim 1, wherein: the combined sensor (2) is internally poured with epoxy resin (203), the outside of the combined sensor is wrapped with a silicon rubber sheath (202), the outside of the silicon rubber sheath (202) is provided with a conducting strip (201), and the bottom of the combined sensor is provided with a wire outlet pipe (204).
4. The circuit breaker with an external combined sensor as claimed in claim 1, wherein: reinforcing ribs (501) are arranged on two sides of a supporting plate (502) of the supporting component (5).
5. The circuit breaker with an external combined sensor as claimed in claim 1, wherein: the shell (603) of the shell assembly (6) is welded with a stud (601) and an edge strip (604), and a boss (602) is arranged outside the edge strip (604).
6. The circuit breaker with an external combined sensor as claimed in claim 3, wherein: the silicone rubber sheath (202) is provided with a climbing-increasing umbrella skirt (20101), an umbrella skirt A (20102) and an umbrella skirt B (20103) are arranged below the climbing-increasing umbrella skirt, and a silicone rubber soft sleeve (20104) is arranged at the bottom of the climbing-increasing umbrella skirt.
7. The circuit breaker with the external combined sensor as claimed in claim 1 or 3, wherein: the lower outgoing line (1) is tightly attached to the conducting strip (201).
8. The circuit breaker with an external combined sensor as claimed in claim 4, wherein: the supporting plate (502) is provided with a semi-elliptical hole (50201), a waist-shaped hole (50202) and a square opening (50203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985672.2U CN217933660U (en) | 2022-04-24 | 2022-04-24 | Circuit breaker of external combined sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985672.2U CN217933660U (en) | 2022-04-24 | 2022-04-24 | Circuit breaker of external combined sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217933660U true CN217933660U (en) | 2022-11-29 |
Family
ID=84176821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220985672.2U Active CN217933660U (en) | 2022-04-24 | 2022-04-24 | Circuit breaker of external combined sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217933660U (en) |
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2022
- 2022-04-24 CN CN202220985672.2U patent/CN217933660U/en active Active
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