CN212967520U - Novel pole-mounted circuit breaker - Google Patents
Novel pole-mounted circuit breaker Download PDFInfo
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- CN212967520U CN212967520U CN202022240497.8U CN202022240497U CN212967520U CN 212967520 U CN212967520 U CN 212967520U CN 202022240497 U CN202022240497 U CN 202022240497U CN 212967520 U CN212967520 U CN 212967520U
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Abstract
The utility model discloses a novel circuit breaker on post, concretely relates to circuit breaker technical field, including base, three-phase utmost point post, three-phase voltage electric current integration mutual-inductor and energy taking device, the built-in cavity of base is equipped with mechanical characteristic monitoring unit and signal processing unit in the cavity, and it has the aviation plug interface to open on the base, and three-phase utmost point post and three-phase voltage electric current integration mutual-inductor and energy taking device all set up on the base, and energy taking device top terminal is connected with the upper end electricity of three-phase utmost point post, and mechanical characteristic monitoring unit and three-phase voltage electric current integration mutual-inductor are connected with the signal processing unit electricity respectively. The beneficial effects of the utility model are that, mechanical characteristic that can real-time supervision circuit breaker has avoided the circuit breaker to break down and arouse potential safe problem in long-term operation or action process, and the big inconvenient installation of conventional circuit breaker that also improves and transport get can the unstable scheduling problem of power.
Description
Technical Field
The utility model relates to a circuit breaker technical field, more specifically say, the utility model relates to a novel circuit breaker on post.
Background
The pole-mounted circuit breaker is one of common power equipment, the mechanical property of the pole-mounted circuit breaker is closely related to the electrical performance and the working stability of the pole-mounted circuit breaker, however, the conventional pole-mounted circuit breaker does not comprise detection of the mechanical property, so that potential hidden dangers caused by faults of the pole-mounted circuit breaker in long-term operation or action processes cannot be avoided; in addition, the conventional pole-mounted circuit breaker adopts a conventional voltage transformer, a conventional current transformer and an electromagnetic energy-taking PT, so that the size and the weight of the pole-mounted circuit breaker are large, and the installation operation is complex.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a novel circuit breaker on post can real-time supervision circuit breaker's mechanical characteristic, has avoided the circuit breaker to break down and arouse potential safe problem in long-term operation or action process, and the conventional circuit breaker that also improves is bulky inconvenient to be installed and the transport, gets can the unstable scheduling problem of power.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel circuit breaker on post, includes base, three-phase utmost point post, three-phase voltage and current integration mutual-inductor and gets can the device, the built-in cavity of base is equipped with spring operating device, mechanical properties monitoring unit and signal processing unit in the cavity, and it has the aviation plug interface to open on the base, and three-phase utmost point post and three-phase voltage and current integration mutual-inductor and get can the device and all set up on the base, get can the device top terminal and be connected with the upper end electricity of three-phase utmost point post, and mechanical properties monitoring unit and three-phase voltage and current integration mutual-inductor are connected with the signal.
In a preferred embodiment, the intelligent terminal further comprises an external intelligent terminal, and the external intelligent terminal is connected with the aerial plug interface through a cable.
In a preferred embodiment, the mechanical characteristic monitoring unit includes a coil current collecting circuit and a contact stroke signal collecting circuit, and calculates mechanical characteristic parameters of contact opening distance, overtravel, opening and closing time, opening and closing synchronization, just opening/just closing speed, and average opening/closing speed of the circuit breaker according to monitoring information amounts of the coil current and the contact operating state.
In a preferred embodiment, the number of the energy taking devices is two, the two energy taking devices are respectively fixed at two ends of the base, one energy taking device is connected with the wire inlet side of the three-phase pole, and the other energy taking device is connected with the wire outlet side of the three-phase pole.
In a preferred embodiment, the three-phase pole is located between two energy extraction devices.
In a preferred embodiment, the energy obtaining device adopts a high-voltage capacitor with stable performance to obtain electricity, and a stable direct-current power supply for equipment is finally obtained through an isolation transformer and an AC/DC module.
In a preferred embodiment, the three-phase voltage and current integrated transformer simultaneously acquires current and voltage signals of a line by using a coil induction principle and a capacitance voltage division principle, and obtains three-phase current and voltage signals, zero-sequence current and voltage signals by secondary conversion and synthesis of a signal processing unit.
The utility model discloses a technological effect and advantage:
1. mechanical properties monitoring unit contains coil current acquisition circuit and contact stroke signal acquisition circuit, calculates the mechanical properties parameter such as the contact opening distance of circuit breaker, overstroke, divide-shut brake time, divide-shut brake synchronism, just divide/just close speed, average divide/close speed through the monitoring information volume to coil current and contact action state. The circuit breaker with built-in mechanical characteristic monitoring can monitor the working state of the circuit breaker in real time, and can judge whether the performance of the current circuit breaker is stable according to monitored data, so that potential safety problems caused by faults of the circuit breaker on a column in long-term operation or action processes are avoided.
2. The utility model discloses an electronic type voltage electric current integration sensor to install the electronic type in both sides and get the ability device, all have brand-new improvement, practicality strong in mechanism and volume, the popularization and application value is high, helps and promotes the development of distribution network automation.
3. The utility model discloses three-phase voltage and current integration mutual inductor adopts coil induction principle and electric capacity partial pressure principle to gather the electric current of circuit, voltage signal simultaneously to obtain three-phase current, voltage signal, zero sequence current, voltage signal through signal processing unit secondary conversion and synthesis. Compared with the traditional voltage and current transformers, the voltage and current transformer has higher integration level, smaller occupied space and reasonable structure, and has perfect information quantity acquisition function, thereby providing reliable and accurate voltage and current acquisition quantity for terminal equipment.
4. The utility model discloses the equal fixedly connected with in both sides can the device, and capacitanc can the device be got and ferromagnetic resonance that has avoided traditional electromagnetic type PT reduces the circuit loss, gets more energy-conservingly than traditional electromagnetic type PT. The different-phase energy taking devices on the two sides of the incoming and outgoing lines can take electricity at the same time, so that the requirement for terminal equipment with high power consumption and multiple functions can be met, and the problem of taking electricity at multiple power supply contact points is solved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a working principle diagram of the mechanical characteristic monitoring unit of the present invention.
The reference signs are: the system comprises a base 1, a three-phase pole column 2, a three-phase voltage and current integrated mutual inductor 3, an energy taking device 4 and an aerial plug interface 5.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1-2, the utility model relates to a novel circuit breaker on post, including base 1, three-phase utmost point post 2, three-phase voltage electric current integration mutual-inductor 3 and can get device 4, the built-in cavity of base 1 is equipped with spring operating device (not seen in the picture), mechanical properties monitoring unit (not seen in the picture) and signal processing unit (not seen in the picture) in the cavity, and it has aviation plug interface 5 to open on the base, and three-phase utmost point post 2, three-phase voltage electric current integration mutual-inductor 3 and get can the device 4 and all set up on the base, and it is connected with the upper end electricity of three-phase utmost point post 2 to get to be connected 4 top terminals, and mechanical properties monitoring unit and three-phase voltage electric current integration mutual-inductor 3 are connected with the signal.
The three-phase voltage and current integrated mutual inductor 3 simultaneously acquires current and voltage signals of a circuit by adopting a coil induction principle and a capacitance voltage division principle, and obtains three-phase current and voltage signals, zero-sequence current and voltage signals through secondary conversion and synthesis of a signal processing unit. Compared with the traditional voltage and current transformers, the voltage and current transformer has higher integration level, smaller occupied space and reasonable structure, and has perfect information quantity acquisition function, thereby providing reliable and accurate voltage and current acquisition quantity for terminal equipment.
The signal processing unit part has the following specific working principle: converting the primary current signal into a small voltage signal proportional to the primary side current and the phase through a signal processing circuit by a low-power-consumption coil, and synthesizing a zero-sequence current signal; the primary voltage is converted into a small voltage signal proportional to the primary voltage and phase by a voltage divider, and a zero-order voltage signal is synthesized.
The energy taking devices 4 are two, the two energy taking devices 4 are respectively fixed at two ends of the base 1, the energy taking devices 4 adopt high-voltage capacitors with stable performance to take electricity, and a stable direct-current power supply for equipment is finally obtained through the isolation transformer and the AC/DC module. The capacitive energy taking device avoids ferromagnetic resonance of the traditional electromagnetic PT, reduces line loss, and is more energy-saving than the traditional electromagnetic PT. The energy taking device 4 on one side can be connected to the phase A wire inlet side, the energy taking device 4 on the other side can be connected to the phase C wire outlet side to take electricity simultaneously, a direct current power supply which can be used for equipment to be practical is directly output, and the on-load capacity is greatly improved by adopting a bilateral capacitance energy taking device.
The spring operating mechanism comprises a contact and a coil, the mechanical characteristic monitoring unit comprises a coil current acquisition circuit and a contact stroke signal acquisition circuit, a displacement sensor can be adopted to follow and monitor the stroke of the contact, a high-sensitivity Hall sensor is used for acquiring the current of the coil, conditioned signals are sent to an AD acquisition channel, and MCU is used for calculating and processing mechanical characteristic parameters such as contact opening distance, overtravel, opening and closing time, opening and closing synchronism, just opening/just closing speed, average opening/closing speed and the like of the circuit breaker and sending the mechanical characteristic parameters to a terminal. The circuit breaker with built-in mechanical characteristic monitoring can monitor the working state of the circuit breaker in real time, and can judge whether the performance of the current circuit breaker is stable according to monitored data, so that potential hidden dangers caused by faults of the circuit breaker on a column in long-term operation or action processes are avoided.
When the three-phase voltage and current integrated mutual inductor works, the three-phase voltage and current integrated mutual inductor 3 simultaneously acquires current and voltage signals of a three-phase high-voltage line, and three-phase current and voltage signals, zero-sequence current and voltage signals are obtained through secondary conversion and synthesis of the signal processing unit. The current and voltage secondary signals (Ia \ Ib \ Ic \ Io \ Ua \ Ub \ Uc \ Uo) and the circuit breaker control signals (switching-off, switching-on and energy storage) are sent to an external intelligent terminal through the aerial plug interface 5 and the cable; the contact stroke and the coil current of the operating mechanism of the mechanical characteristic monitoring module unit are monitored in real time, and mechanical characteristic parameters of the circuit breaker, such as contact opening distance, over travel, switching-on and switching-off time, switching-on and switching-off synchronism, just on/just off speed, average switching-on/off speed and the like, which are obtained through MCU calculation processing are also transmitted to the terminal through the aerial plug interface and the cable; the double-side energy-taking device 4 takes the electricity from the high-voltage line and converts the electricity into the direct-current power supply which can be directly used by the terminal or other equipment.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel circuit breaker on post which characterized in that: including base, three-phase utmost point post, three-phase voltage current integration mutual-inductor and energy taking device, the built-in cavity of base is equipped with mechanical properties monitoring unit and signal processing unit in the cavity, and it has the aviation plug interface to open on the base, and three-phase utmost point post and three-phase voltage current integration mutual-inductor and energy taking device all set up on the base, and energy taking device top terminal is connected with the upper end electricity of three-phase utmost point post, and mechanical properties monitoring unit and three-phase voltage current integration mutual-inductor are connected with the signal processing unit electricity respectively.
2. The novel pole top circuit breaker as claimed in claim 1, wherein: the intelligent navigation system further comprises an external intelligent terminal, and the external intelligent terminal is connected with the aerial plug interface through a cable.
3. The novel pole top circuit breaker as claimed in claim 1, wherein: the mechanical characteristic monitoring unit comprises a coil current acquisition circuit and a contact stroke signal acquisition circuit, and mechanical characteristic parameters of contact opening distance, overtravel, opening and closing time, opening and closing synchronism, just opening/just closing speed and average opening/closing speed of the circuit breaker are calculated through monitoring information quantities of coil current and contact action states.
4. The novel pole top circuit breaker as claimed in claim 1, wherein: the energy taking devices are two and are respectively fixed at two ends of the base, one of the energy taking devices is connected with the wire inlet side of the three-phase pole, and the other energy taking device is connected with the wire outlet side of the three-phase pole.
5. The novel pole top circuit breaker as claimed in claim 4, wherein: the three-phase pole is positioned between the two energy taking devices.
6. A novel pole top circuit breaker as claimed in any one of claims 1 to 4, wherein: the energy taking device adopts a high-voltage capacitor with stable performance to take electricity, and finally obtains a stable direct-current power supply for equipment through an isolation transformer and an AC/DC module.
7. A novel pole top circuit breaker as claimed in any one of claims 1 to 4, wherein: the three-phase voltage and current integrated mutual inductor simultaneously acquires current and voltage signals of a circuit by adopting a coil induction principle and a capacitance voltage division principle, and obtains three-phase current and voltage signals, zero-sequence current and voltage signals through secondary conversion and synthesis of a signal processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022240497.8U CN212967520U (en) | 2020-10-10 | 2020-10-10 | Novel pole-mounted circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022240497.8U CN212967520U (en) | 2020-10-10 | 2020-10-10 | Novel pole-mounted circuit breaker |
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| CN212967520U true CN212967520U (en) | 2021-04-13 |
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| CN202022240497.8U Active CN212967520U (en) | 2020-10-10 | 2020-10-10 | Novel pole-mounted circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144745A (en) * | 2022-09-01 | 2022-10-04 | 山东汇能电气有限公司 | Detection system is used in column switch production |
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2020
- 2020-10-10 CN CN202022240497.8U patent/CN212967520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144745A (en) * | 2022-09-01 | 2022-10-04 | 山东汇能电气有限公司 | Detection system is used in column switch production |
| CN115144745B (en) * | 2022-09-01 | 2022-11-29 | 山东汇能电气有限公司 | Detection system is used in column switch production |
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