CN209804542U - Outdoor intelligent electronic vacuum circuit breaker - Google Patents
Outdoor intelligent electronic vacuum circuit breaker Download PDFInfo
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- CN209804542U CN209804542U CN201921115858.7U CN201921115858U CN209804542U CN 209804542 U CN209804542 U CN 209804542U CN 201921115858 U CN201921115858 U CN 201921115858U CN 209804542 U CN209804542 U CN 209804542U
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- circuit breaker
- vacuum circuit
- breaker body
- vacuum
- conducting rod
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Abstract
The utility model discloses an outdoor intelligent electronic vacuum circuit breaker, which comprises a vacuum circuit breaker body, wherein an electronic voltage transformer and an electronic current transformer are arranged inside the vacuum circuit breaker body, one end of the vacuum circuit breaker body is provided with a wire outlet sleeve, the other end of the vacuum circuit breaker body is provided with a wire inlet sleeve, the axial position of the wire inlet sleeve is spliced with a wire inlet conducting rod, and the axial position of the wire outlet sleeve is spliced with a wire outlet conducting rod; the vacuum circuit breaker comprises a vacuum circuit breaker body, an outgoing line conducting rod, an incoming line conducting rod, an electronic current transformer, a conducting clamp and a vacuum arc extinguish chamber, wherein the vacuum arc extinguish chamber is arranged inside the vacuum circuit breaker body, the outgoing line conducting rod is connected with one side of the vacuum arc extinguish chamber, the incoming line conducting rod is connected with the other side of the vacuum arc extinguish chamber, the electronic current transformer is sleeved on the outer peripheral surface of an incoming line sleeve, the conducting clamp is arranged inside the vacuum circuit breaker body, the conducting clamp is. The utility model discloses the control voltage electric current signal's that can be better phase difference improves power measurement's the degree of accuracy.
Description
Technical Field
The utility model relates to a switch, in particular to outdoor intelligent electronic type vacuum circuit breaker.
Background
The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. An automatic demarcation switch refers to a device used for protecting a branch line and an end user. The breaker body structure consists of an insulation system, an operation system, a conductive system, a sealing system and a measuring system. When a T-connection branch line or an end user of a 10kV overhead distribution line fails at a line at the inlet side of a switch or a line at the inner side of a user switch at present, and the protection action time limit of the T-connection branch line or the end user is not matched with the protection of an outlet switch of a transformer substation, the outlet switch of the transformer substation is tripped. If the nature of the fault is permanent, the coincidence of transformer substations will not succeed, then the accident in a medium-voltage user boundary will make the whole 10kV distribution line have a power failure, if a demarcation vacuum circuit breaker is installed at a T-junction branch line or a terminal user, the actual fault condition of the line is detected in real time, the fault is automatically removed, a series of management problems caused by large-area power failure due to the fact that a fault occurs in one section of line or one piece of equipment in a distribution network can be effectively solved, and the power supply management efficiency is greatly improved. It is mainly suitable for branch line and terminal user to protect line. The vacuum circuit breaker is composed of a vacuum arc extinguish chamber, a spring mechanism, a measuring transformer and a sealing shell. SF6 gas is filled in the shell as an insulating medium, so that the electrical safety performance is greatly improved. The operating mechanism adopts a third-generation miniaturized spring operating mechanism with excellent performance, and a direct-acting chain main transmission and a multi-stage tripping system are applied, so that the action is more reliable and stable. An inward-contraction outward-expansion watch chain structure is adopted between the main loop incoming and outgoing line shaft sleeves, so that the contact resistance is small, and the current-carrying performance is strong. Small volume, excellent performance and no maintenance. The existing vacuum circuit breaker can not well control the phase difference of voltage and current signals, and the measurement accuracy is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists to a provide one kind and adopt voltage, current combination formula electronic transformer, the outdoor intelligent electronic type vacuum circuit breaker of the degree of accuracy that improves power measurement can better control voltage current signal's phase difference.
The above technical problem of the present invention can be solved by the following technical solutions:
An outdoor intelligent electronic type vacuum circuit breaker comprises a vacuum circuit breaker body, wherein an electronic voltage transformer and an electronic current transformer are installed inside the vacuum circuit breaker body, one end of the vacuum circuit breaker body is provided with a wire outlet sleeve, the other end of the vacuum circuit breaker body is provided with a wire inlet sleeve, a wire inlet conducting rod is inserted in the axial position of the wire inlet sleeve, and a wire outlet conducting rod is inserted in the axial position of the wire outlet sleeve; the vacuum circuit breaker comprises a vacuum circuit breaker body, an outgoing line conducting rod, an incoming line conducting rod, an electronic current transformer, a conducting clamp, an electronic voltage transformer and a control circuit, wherein the vacuum circuit breaker body is internally provided with a vacuum arc extinguish chamber, the outgoing line conducting rod is connected with one side of the vacuum arc extinguish chamber, the incoming line conducting rod is connected with the other side of the vacuum arc extinguish chamber, the electronic current transformer is sleeved on the outer peripheral surface of an incoming line sleeve, the inside of the vacuum circuit breaker body is provided with the conducting clamp, the conducting clamp is arranged; a straight crank arm is arranged between the conductive clamp and the incoming line conductive rod, an insulating connecting rod is arranged inside the vacuum circuit breaker body, the lower end of the insulating connecting rod is connected with the upper end of the straight crank arm, and the lower end of the straight crank arm is arranged between the conductive clamp and the incoming line conductive rod.
Furthermore, the front of the vacuum circuit breaker body is provided with a manual energy storage handle, the connecting position of the insulating connecting rod and the straight connecting arm is connected with the inner end of the manual energy storage handle, and the outer end of the manual energy storage handle is a free end.
Furthermore, a manual-manual closing handle is arranged on the front side of the vacuum circuit breaker body, the inner end of the manual-manual closing handle is connected with the connecting position of the straight crank arm and the conductive clamp, and the outer end of the manual-manual closing handle is a free end; the front of vacuum circuit breaker body is equipped with the energy storage sign, and the energy storage sign is installed in the below of manual hand combined floodgate handle, is connected with the energy storage pointer on the manual hand combined floodgate handle, and the upper end and the manual hand combined floodgate handle of energy storage pointer pass through the rotation axis and are connected, and the dead ahead at the energy storage sign is installed to the lower extreme of energy storage pointer.
Furthermore, the front face of the vacuum circuit breaker body is provided with a switching-on and switching-off indication board, the front face of the switching-on and switching-off indication board is provided with a switching-on and switching-off pointer, and the axial direction of the switching-on and switching-off pointer is connected with the main shaft assembly through the mounting shaft.
Further, the vacuum circuit breaker body internally mounted has main shaft assembly, and the upper end and the main shaft assembly of insulating extension rod are connected.
Further, an oil buffer is arranged at the lower part of the main shaft assembly and is installed inside the vacuum circuit breaker body.
Further, the top of the vacuum circuit breaker body is provided with a hanging bracket.
Furthermore, the vacuum arc-extinguishing chamber is installed in the insulating cover, the inner end of the incoming line conducting rod is installed at one side of the insulating cover, and the inner end of the outgoing line conducting rod is installed at the other side of the insulating cover.
Furthermore, a contact grease is arranged between the incoming line sleeve and the incoming line conducting rod.
Further, the bottom of vacuum circuit breaker body is equipped with the aviation socket, and the aviation socket is connected for the electricity with vacuum interrupter.
According to the outdoor intelligent electronic vacuum circuit breaker adopting the technical scheme, the electronic voltage transformer and the electronic current transformer are common transformers, and the vacuum arc-extinguishing chamber is a common vacuum switch tube; the incoming line sleeve is externally connected with a power supply through an incoming line conducting rod, the incoming line conducting rod supplies power to the vacuum arc extinguish chamber through a conducting clamp, the vacuum arc extinguish chamber outputs electric energy through an outgoing line conducting rod, and the insulating connecting rod enables the incoming line conducting rod to be conducted with a circuit of the vacuum arc extinguish chamber through a straight crank arm; the electronic current transformer generally has higher bandwidth, and is suitable for fundamental wave and harmonic wave measurement of current with higher harmonic wave content. In order to accurately measure the power, a voltage and current combined electronic transformer can be adopted, and the combined electronic transformer can better control the phase difference of voltage and current signals and improve the accuracy of power measurement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses outdoor intelligent electronic type vacuum circuit breaker's schematic structure.
Fig. 2 is the utility model discloses outdoor intelligent electronic type vacuum circuit breaker's inner structure schematic diagram.
fig. 3 is the utility model discloses outdoor intelligent electronic type vacuum circuit breaker's front view.
Fig. 4 is the utility model discloses outdoor intelligent electronic type vacuum circuit breaker's side view.
Fig. 5 is the utility model discloses outdoor intelligent electronic type vacuum circuit breaker's top view.
Detailed Description
the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
as shown in fig. 1 to 5, an outdoor intelligent electronic vacuum circuit breaker includes a vacuum circuit breaker body 23, an electronic voltage transformer 1 and an electronic current transformer 3 are installed inside the vacuum circuit breaker body 23, an outgoing line bushing 7 is installed at one end of the vacuum circuit breaker body 23, an incoming line bushing 8 is installed at the other end of the vacuum circuit breaker body 23, an incoming line conductive rod 10 is inserted in an axial position of the incoming line bushing 8, and an outgoing line conductive rod 14 is inserted in an axial position of the outgoing line bushing 7; a vacuum arc extinguish chamber 13 is arranged in a vacuum circuit breaker body 23, an outgoing line conducting rod 14 is connected with one side of the vacuum arc extinguish chamber 13, an incoming line conducting rod 10 is connected with the other side of the vacuum arc extinguish chamber 13, an electronic current transformer 3 is sleeved on the outer peripheral surface of an incoming line sleeve 8, a conducting clamp 12 is arranged in the vacuum circuit breaker body 23, the conducting clamp 12 is arranged between the incoming line conducting rod 10 and the vacuum arc extinguish chamber 13, the incoming line conducting rod 10 is electrically connected with the vacuum arc extinguish chamber 13 through the conducting clamp 12, and an electronic voltage transformer 1 is connected with the conducting clamp 12; a straight crank arm 11 is arranged between the conductive clamp 12 and the incoming line conductive rod 10, an insulating connecting rod 2 is arranged inside the vacuum circuit breaker body 23, the lower end of the insulating connecting rod 2 is connected with the upper end of the straight crank arm 11, and the lower end of the straight crank arm 11 is arranged between the conductive clamp 12 and the incoming line conductive rod 10.
The utility model discloses outdoor intelligent electronic vacuum circuit breaker, electronic voltage transformer 1 and electronic current transformer 3 are the mutual-inductor commonly used, vacuum interrupter 13 is the vacuum switch tube commonly used; the incoming line sleeve 8 is externally connected with a power supply through an incoming line conducting rod 10, the incoming line conducting rod 10 supplies power to a vacuum arc-extinguishing chamber 13 through a conducting clamp 12, the vacuum arc-extinguishing chamber 13 outputs electric energy through an outgoing line conducting rod 14, and the insulating connecting rod 2 enables the incoming line conducting rod 10 to be conducted with a circuit of the vacuum arc-extinguishing chamber 13 through a straight connecting lever 11; the electronic current transformer generally has higher bandwidth, and is suitable for fundamental wave and harmonic wave measurement of current with higher harmonic wave content. In order to accurately measure the power, a voltage and current combined electronic transformer can be adopted, and the combined electronic transformer can better control the phase difference of voltage and current signals and improve the accuracy of power measurement.
Preferably, a manual energy storage handle 16 is arranged on the front surface of the vacuum circuit breaker body 23, the connecting position of the insulating connecting rod 2 and the straight connecting lever 11 is connected with the inner end of the manual energy storage handle 16, and the outer end of the manual energy storage handle 16 is a free end; the manual energy storage handle 16 is used for controlling the insulating connecting rod 2 to be electrically connected with the straight crank arm 11 and controlling the insulating connecting rod 2 to be switched on or switched off with the straight crank arm 11.
Preferably, a manual closing handle 17 is arranged on the front surface of the vacuum circuit breaker body 23, the inner end of the manual closing handle 17 is connected with the connecting position of the straight crank arm 11 and the conductive clamp 12, and the outer end of the manual closing handle 17 is a free end; the front side of the vacuum circuit breaker body 23 is provided with an energy storage indicator 18, the energy storage indicator 18 is arranged below a manual closing handle 17, the manual closing handle 17 is connected with an energy storage pointer 19, the upper end of the energy storage pointer 19 is connected with the manual closing handle 17 through a rotating shaft, and the lower end of the energy storage pointer 19 is arranged right in front of the energy storage indicator 18; switch is realized through manual hand closing handle 17 control straight turning arm 11 and electrically conductive clamp 12, stirs energy storage pointer 19, and energy storage pointer 19 stirs about realizing on energy storage sign 18, instructs this vacuum circuit breaker body 23 to be in energy storage state or not energy storage state through energy storage pointer 19, makes things convenient for the operator to survey.
Preferably, the front surface of the vacuum circuit breaker body 23 is provided with a switching-on/off indication board 21, the front surface of the switching-on/off indication board 21 is provided with a switching-on/off pointer 22, and the axial direction of the switching-on/off pointer 22 is connected with the spindle assembly 5 through a mounting shaft; the switching-on and switching-off state of the vacuum circuit breaker body 23 can be conveniently observed by an operator through the indicating position of the switching-on and switching-off pointer 22 on the switching-on and switching-off indicating plate 21.
Preferably, the main shaft assembly 5 is installed inside the vacuum circuit breaker body 23, and the upper end of the insulating connection rod 2 is connected with the main shaft assembly 5; an oil buffer 6 is arranged at the lower part of the main shaft assembly 5, and the oil buffer 6 is arranged inside the vacuum circuit breaker body 23; the main shaft assembly 5 realizes buffering through the oil buffer 6, and the insulating connecting rod 2 can flexibly rotate and finely adjust around the main shaft assembly 5.
Preferably, the top of the vacuum circuit breaker body 23 is provided with a hanger 4; the ceiling installation is conveniently carried out to the top of vacuum circuit breaker body 23 through gallows 4.
Preferably, the vacuum arc-extinguishing chamber 13 is installed in the insulating cover 15, the inner end of the incoming conducting rod 10 is installed at one side of the insulating cover 15, and the inner end of the outgoing conducting rod 14 is installed at the other side of the insulating cover 15; the periphery of the vacuum interrupter 13 is protected by an insulating cover 15.
Preferably, a contact grease 9 is arranged between the incoming line sleeve 8 and the incoming line conducting rod 10; the contact grease 9 greatly improves the good contact performance of the incoming line sleeve 8 and the incoming line conducting rod 10.
Preferably, the bottom of the vacuum circuit breaker body 23 is provided with an aviation socket 20, and the aviation socket 20 is electrically connected with the vacuum arc-extinguishing chamber 13; the aviation socket 20 is convenient for plugging a power line to supply power to the vacuum circuit breaker body 23.
The utility model discloses outdoor intelligent electronic type vacuum circuit breaker comprises ZW20-12 type vacuum circuit breaker body, FDR controller, built-in electronic type voltage, current transformer, carries out the electrical connection through aviation socket and outdoor sealed control cable. The need for user management can grow to be close to the remote control and the operating software. The high-voltage and low-voltage insulation structure has the advantages of complete isolation, high safety, excellent insulation performance, no iron core, elimination of problems of magnetic saturation, ferromagnetic resonance and the like. The measured signal of the electromagnetic mutual inductor is coupled with the secondary coil through the iron core, the insulation structure is complex, and the manufacturing cost of the electromagnetic mutual inductor is increased in an exponential relation with the voltage grade. The unconventional mutual inductor transmits a high-voltage side signal to secondary equipment through an optical fiber with good insulation performance, so that the insulation structure of the unconventional mutual inductor is greatly simplified, and the cost performance advantage is more obvious when the voltage grade is higher. And the potential risks of flammability, explosion and the like caused by oil filling are avoided. The insulating structure of the unconventional mutual inductor is relatively simple, generally oil is not used as an insulating medium, and dangers such as fire disasters, explosions and the like cannot be caused. The dynamic range is large, the measurement precision is high, and the frequency response range is wide. When the power grid normally operates, the current flowing through the current transformer is small, but the short-circuit current is generally large, and the short-circuit current is larger and larger along with the increase of the capacity of the power grid. The unconventional transformer has a wide dynamic range and can meet the requirements of measurement and relay protection at the same time. The anti-electromagnetic interference performance is good, and the low-voltage side has no open-circuit high-voltage danger. The high-voltage side and the low-voltage side of the unconventional mutual inductor are only in optical fiber connection, signals are transmitted through optical fibers, a high-voltage loop and a secondary loop are completely isolated electrically, the mutual inductor has good electromagnetic interference resistance, and the low-voltage side is free of high voltage danger caused by open circuit. The data transmission has strong anti-interference capability. Electromagnetic transformers transmit analog signals, and measurement, control and relay protection in power stations traditionally transmit electric signals measured by electric sensors to a control room through coaxial cables. Small volume and light weight. The unconventional mutual inductor has no iron core, and the weight of the unconventional mutual inductor is much smaller than that of an electromagnetic mutual inductor with the same voltage class.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (10)
1. An outdoor intelligent electronic type vacuum circuit breaker comprises a vacuum circuit breaker body, wherein an electronic voltage transformer and an electronic current transformer are installed inside the vacuum circuit breaker body, one end of the vacuum circuit breaker body is provided with a wire outlet sleeve, the other end of the vacuum circuit breaker body is provided with a wire inlet sleeve, a wire inlet conducting rod is inserted in the axial position of the wire inlet sleeve, and a wire outlet conducting rod is inserted in the axial position of the wire outlet sleeve;
The method is characterized in that: the vacuum circuit breaker comprises a vacuum circuit breaker body, an outgoing line conducting rod, an incoming line conducting rod, an electronic current transformer, a conducting clamp, an electronic voltage transformer and a control circuit, wherein the vacuum circuit breaker body is internally provided with a vacuum arc extinguish chamber, the outgoing line conducting rod is connected with one side of the vacuum arc extinguish chamber, the incoming line conducting rod is connected with the other side of the vacuum arc extinguish chamber, the electronic current transformer is sleeved on the outer peripheral surface of an incoming line sleeve, the inside of the vacuum circuit breaker body is provided with the conducting clamp, the conducting clamp is arranged;
A straight crank arm is arranged between the conductive clamp and the incoming line conductive rod, an insulating connecting rod is arranged inside the vacuum circuit breaker body, the lower end of the insulating connecting rod is connected with the upper end of the straight crank arm, and the lower end of the straight crank arm is arranged between the conductive clamp and the incoming line conductive rod.
2. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the front of vacuum circuit breaker body is equipped with manual energy storage handle, and the connection position of insulating extension rod and straight crank arm is connected with the inner of manual energy storage handle, and the outer end of manual energy storage handle is the free end.
3. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the front side of the vacuum circuit breaker body is provided with a manual switching-on handle, the inner end of the manual switching-on handle is connected with the connecting position of the straight crank arm and the conductive clamp, and the outer end of the manual switching-on handle is a free end; the front of vacuum circuit breaker body is equipped with the energy storage sign, and the energy storage sign is installed in the below of manual hand combined floodgate handle, is connected with the energy storage pointer on the manual hand combined floodgate handle, and the upper end and the manual hand combined floodgate handle of energy storage pointer pass through the rotation axis and are connected, and the dead ahead at the energy storage sign is installed to the lower extreme of energy storage pointer.
4. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the front face of the vacuum circuit breaker body is provided with a switching-on and switching-off indication board, the front face of the switching-on and switching-off indication board is provided with a switching-on and switching-off pointer, and the axial direction of the switching-on and switching-off pointer is connected with the main shaft assembly through the mounting shaft.
5. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the vacuum circuit breaker comprises a vacuum circuit breaker body and is characterized in that a main shaft assembly is mounted inside the vacuum circuit breaker body, and the upper end of an insulating connecting rod is connected with the main shaft assembly.
6. The outdoor intelligent electronic vacuum circuit breaker of claim 5, wherein: the lower part of the main shaft assembly is provided with an oil buffer which is arranged inside the vacuum circuit breaker body.
7. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the top of vacuum circuit breaker body is equipped with the gallows.
8. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the vacuum arc extinguish chamber is arranged in the insulating cover, the inner end of the incoming line conducting rod is arranged at one side of the insulating cover, and the inner end of the outgoing line conducting rod is arranged at the other side of the insulating cover.
9. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: and contact grease is arranged between the incoming line sleeve and the incoming line conducting rod.
10. The outdoor intelligent electronic vacuum circuit breaker of claim 1, wherein: the bottom of vacuum circuit breaker body is equipped with the aviation socket, and the aviation socket is connected for the electricity with vacuum interrupter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115858.7U CN209804542U (en) | 2019-07-16 | 2019-07-16 | Outdoor intelligent electronic vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115858.7U CN209804542U (en) | 2019-07-16 | 2019-07-16 | Outdoor intelligent electronic vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209804542U true CN209804542U (en) | 2019-12-17 |
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ID=68817953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921115858.7U Active CN209804542U (en) | 2019-07-16 | 2019-07-16 | Outdoor intelligent electronic vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209804542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284926A (en) * | 2021-12-27 | 2022-04-05 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
-
2019
- 2019-07-16 CN CN201921115858.7U patent/CN209804542U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284926A (en) * | 2021-12-27 | 2022-04-05 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
| CN114284926B (en) * | 2021-12-27 | 2023-12-15 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Yueshuang Inventor after: Wang Shaohua Inventor before: Wang Shaohua |