CN216054469U - One-time and two-time fusion outdoor on-column metering switch - Google Patents
One-time and two-time fusion outdoor on-column metering switch Download PDFInfo
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- CN216054469U CN216054469U CN202122304062.XU CN202122304062U CN216054469U CN 216054469 U CN216054469 U CN 216054469U CN 202122304062 U CN202122304062 U CN 202122304062U CN 216054469 U CN216054469 U CN 216054469U
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Abstract
The utility model discloses a primary and secondary fusion outdoor on-post metering switch, which comprises a high-voltage circuit breaker mechanism box, wherein a state indicating plate is arranged on the front side surface of the high-voltage circuit breaker mechanism box, a backup power supply and an intelligent microcomputer protection electric energy metering management measurement and control terminal are respectively arranged on two side surfaces of the high-voltage circuit breaker mechanism box, a high-voltage vacuum circuit breaker is fixedly connected to the upper side surface of the high-voltage circuit breaker mechanism box, a high-voltage outgoing line connecting terminal is arranged at the top end of a three-phase pole of the high-voltage vacuum circuit breaker, a current sensor and a voltage sensor are sequentially connected to the rear side of the three-phase pole of the high-voltage vacuum circuit breaker, the current sensor and the voltage sensor are both fixedly connected to the rear side surface of the high-voltage circuit breaker mechanism box, and one side of the current sensor, which is far away from the high-voltage vacuum circuit breaker, is provided with a high-voltage incoming line connecting terminal; by adopting the high-voltage vacuum circuit breaker, the utility model not only has the capacity of breaking the fault short-circuit current.
Description
Technical Field
The utility model relates to the technical field of high-voltage electric metering devices, in particular to a primary and secondary fusion outdoor on-column metering switch.
Background
At present, when a user is accessed to a three-phase alternating-current high-voltage electric connector, a high-voltage electric energy prepayment metering device is adopted to facilitate meter reading and counting of electric power workers, the existing high-voltage electric energy prepayment metering device is mainly composed of a high-voltage vacuum contactor, an electromagnetic combined sensor, a prepayment control device and an electric energy meter, and a switch part of the high-voltage electric energy prepayment metering control device adopts a contactor and does not have the capacity of breaking fault and short-circuit current, equipment is easy to burn out after short circuit occurs on a user side, certain potential safety hazards exist, and the existing electromagnetic combined sensor is independent of the high-voltage vacuum contactor, so that a large space is additionally occupied.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a primary and secondary fusion outdoor on-post metering switch to solve the above problems in the background art.
In order to achieve the purpose, the utility model discloses a technical scheme of a primary and secondary fusion outdoor on-column metering switch, which comprises the following steps: including high-voltage circuit breaker mechanism case, the leading flank of high-voltage circuit breaker mechanism case is provided with the status indicator board, the both sides face of high-voltage circuit breaker mechanism case is provided with stand-by power supply and intelligent computer protection electric energy measurement management measurement and control terminal respectively, the side fixedly connected with high-pressure vacuum circuit breaker that goes up of high-voltage circuit breaker mechanism case, the top of high-pressure vacuum circuit breaker three-phase utmost point post is provided with high-pressure binding post of being qualified for the next round of competitions, the rear side of high-pressure vacuum circuit breaker three-phase utmost point post has connected gradually current sensor and voltage sensor, current sensor with the equal fixed connection of voltage sensor in the trailing flank of high-voltage circuit breaker mechanism case, current sensor keeps away from one side of high-pressure vacuum circuit breaker is provided with high-pressure inlet wire binding post.
Has the advantages that: by adopting the high-voltage vacuum circuit breaker, the utility model not only has the capacity of breaking fault short-circuit current, but also has the capacity of three-section type current protection of overload protection, short-circuit short delay and short-circuit long delay, thereby further improving the reliability of the utility model; the high-voltage vacuum circuit breaker, the current sensor and the voltage sensor are integrated on the high-voltage circuit breaker mechanism box, so that the utility model not only can realize the electric energy metering and the monitoring of the electric load, but also greatly reduces the occupied space of the utility model.
Furthermore, the top surface of the voltage sensor is positioned below the high-voltage incoming line wiring terminal.
Has the advantages that: the voltage sensor is arranged below the current sensor, so that the occupied space of the utility model is further reduced, and an external three-phase cable can be more conveniently connected with a high-voltage incoming line terminal on the current sensor.
Furthermore, the three-phase pole of the high-voltage vacuum circuit breaker, the voltage sensor and the current sensor are all poured into a whole in a totally-closed mode through epoxy resin.
Has the advantages that: the insulation of the utility model is increased by casting with epoxy resin material.
Further, the current sensor includes an LPCT coil LHa, an LPCT coil LHb and an LPCT coil LHc respectively disposed on the three-phase cable, sampling resistors Ra, Rb and Rc are respectively disposed in the LPCT coil LHa, the LPCT coil LHb and the LPCT coil LHc, an LPCT coil LHa ', an LPCT coil LHb' and an LPCT coil LHc 'are respectively disposed on the three-phase cable, and a sampling resistor Ro is disposed in the LPCT coil LHa'.
Has the advantages that: the primary side and the secondary side are isolated through the structure, and the phenomenon of secondary side open circuit and secondary side short circuit is avoided.
Further, the voltage sensor comprises a wire L1, a wire L2 and a wire L3 respectively connected to a three-phase cable, a capacitor C1, a capacitor C2 and a capacitor C3 are connected in series to the wire L1, a capacitor C4, a capacitor C5 and a capacitor C6 are connected in series to the wire L2, a capacitor C7, a capacitor C8 and a capacitor C9 are connected in series to the wire L3, one end of the capacitor C1, the capacitor C2, the capacitor C3 and one end of the capacitor C3 are connected in common to a capacitor C3, one end of the capacitor C3 is grounded, a wire L3 is connected between the capacitor C3 and the C3, a wire L3 is connected between the capacitor C3 and the capacitor C3, and a wire L3 is connected between the capacitor C3 and the wire L3, a lead L9 is connected between the capacitor C8 and the capacitor C9, lead L10 and lead L11 are connected between the capacitor C9 and the capacitor C10 and between the capacitor C10 and a ground point, and a lead L12 is connected between the capacitor C9 and the capacitor C10.
Has the advantages that: the structure not only can detect the voltage in the three-phase cable, but also can supply power for the intelligent microcomputer protection electric energy metering management measurement and control terminal and provide an electric operation power supply for the high-voltage vacuum circuit breaker, thereby reducing the complexity of the structure of the utility model.
Furthermore, the upper side of the high-voltage circuit breaker mechanism box is adjacent to the lifting lugs fixedly connected between the poles.
Has the advantages that: the lifting lug is arranged to facilitate the lifting and moving of the utility model.
Drawings
FIG. 1 is a schematic view of an overall structure of a primary and secondary integrated outdoor on-post metering switch according to the present invention;
FIG. 2 is a right side view of a primary and secondary fusion outdoor pole metering switch of the present invention;
FIG. 3 is a schematic logic diagram of a one-time and two-time integrated outdoor on-pole metering switch of the present invention;
fig. 4 is a schematic diagram of a current sensor and a voltage sensor of a primary-secondary fusion outdoor on-pole metering switch according to the present invention.
In the figure: 1. a backup power supply; 2. the intelligent microcomputer protects the electric energy metering management measurement and control terminal; 3. a high voltage vacuum circuit breaker; 4. a current sensor; 5. a voltage sensor; 6. a high-voltage incoming line wiring terminal; 7. a high-voltage outgoing line connecting terminal; 8. high voltage circuit breaker mechanism case.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings, wherein the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to orientations and positional relationships that are based on the orientation shown in the drawings, are used for convenience in describing the utility model and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
As shown in fig. 1 and 2, a primary and secondary fusion outdoor on-column metering switch includes a high-voltage circuit breaker mechanism box 8, a state indicating plate is disposed on a front side surface of the high-voltage circuit breaker mechanism box 8, and the state indicating plate is used for indicating whether a current circuit breaker is in a closing state; a backup power supply 1 is arranged on the left side of the high-voltage circuit breaker mechanism box 8, the backup power supply 1 can be a lead storage battery or a super capacitor, a backup power supply 1 management module is arranged in the backup power supply 1, and the power supply management module is used for managing charging and discharging of the backup power supply 1; an intelligent microcomputer protection electric energy metering management measurement and control terminal 2 is arranged on the right side of the high-voltage circuit breaker mechanism box 8, a high-voltage vacuum circuit breaker 3 is fixedly connected to the upper side face of the high-voltage circuit breaker mechanism box 8, and a charge control terminal is arranged in the high-voltage vacuum circuit breaker 3; a high-voltage outgoing wire connecting terminal 7 is arranged at the top end of a three-phase pole of the high-voltage vacuum circuit breaker 3, and a lifting lug is fixedly connected between adjacent poles at the upper side of a high-voltage circuit breaker mechanism box 8; the rear side of 3 three-phase utmost point posts of high-pressure vacuum circuit breaker has connected gradually current sensor 4 and voltage sensor 5, and the equal fixed connection of current sensor 4 and voltage sensor 5 is in the trailing flank of high-pressure circuit breaker mechanism case 8, and one side that high-pressure vacuum circuit breaker 3 was kept away from to current sensor 4 is provided with high-pressure inlet wire binding post 6, and voltage sensor 5's top surface is located high-pressure inlet wire binding post 6's below.
By adopting the high-voltage vacuum circuit breaker 3, the utility model not only has the capacity of breaking fault short-circuit current, but also has the capacity of three-section type current protection of overload protection, short-circuit short delay and short-circuit long delay, thereby further improving the reliability of the utility model; the high-voltage vacuum circuit breaker 3, the current sensor 4 and the voltage sensor 5 are integrated on the high-voltage circuit breaker mechanism box 8, so that the utility model not only can realize the electric energy metering and the monitoring of the electric load, but also greatly reduces the occupied space of the utility model.
As shown in fig. 3, in the present embodiment, the current sensor 4 is a low power consumption iron core coil current transformer, and includes an LPCT coil LHa, an LPCT coil LHb, and an LPCT coil LHc for current measurement, and an LPCT coil LHa ', an LPCT coil LHb', and an LPCT coil LHc 'for zero-sequence current measurement, wherein the LPCT coil is used for measuring a-phase current, the LPCT coil LHb is used for measuring a-phase current, the LPCT coil LHc is used for measuring a-phase current, sampling resistors Ra, Rb, and Rc are respectively disposed in the LPCT coil LHa, the LPCT coil LHb, and the LPCT coil LHc, and a sampling resistor Ro is disposed in the LPCT coil LHa'.
The voltage sensor 5 comprises a lead L1, a lead L2 and a lead L3 which are respectively connected with an A-phase cable, a B-phase cable and a C-phase cable, wherein a capacitor C1, a capacitor C2 and a capacitor C3 are connected in series on the lead L1, a capacitor C4, a capacitor C5 and a capacitor C6 are connected in series on the lead L2, a capacitor C7, a capacitor C8 and a capacitor C9 are connected in series on the lead L3, one end of each of the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, the capacitor C8 and the capacitor C9 is connected with a capacitor C10, and one end of the capacitor C10 is grounded; a lead L4 for taking electricity Va from the phase A is connected between the capacitors C1 and C2, a lead L5 for taking electricity Vb from the phase B is connected between the capacitors C4 and C5, and a lead L6 for taking electricity Vc from the phase C is connected between the capacitors C7 and C8; a lead L7 for measuring an A-phase voltage Ua is connected between the capacitors C2 and C3, a lead L8 for measuring a B-phase voltage Ub is connected between the capacitors C5 and C6, a lead L9 for measuring a C-phase voltage Uc is connected between the capacitors C8 and C9, leads L10 and L11 for measuring a zero-sequence voltage are connected between the capacitor C9 and the capacitor C10 and between the capacitor C10 and a grounding point, and a lead L12 for measuring a neutral-point voltage is connected between the capacitor C9 and the capacitor C10.
In the embodiment, the three-phase pole of the high-voltage vacuum circuit breaker 3, the voltage sensor 5 and the current sensor 4 are all fully sealed and cast by epoxy resin, and the insulation property of the high-voltage vacuum circuit breaker is increased by casting by using epoxy resin materials.
As shown in fig. 4, the energy-taking power supply of the backup power supply 1 and the voltage sensor 5 simultaneously supplies power to the power management module, the fee control terminal and the intelligent microcomputer-protected electric energy metering and control terminal, the intelligent microcomputer-protected electric energy metering and control terminal receives the current signal collected by the current sensor 4 and the voltage signal collected by the voltage sensor 5 and transmits the current signal and the voltage signal to the fee control terminal, the fee control terminal meters the transmitted current and voltage signals and deducts fee by combining with the account balance of the user, if the account balance is insufficient, a command is sent to the intelligent microcomputer-protected electric energy metering and control terminal, so that the intelligent microcomputer-protected electric energy metering and control terminal controls the high-voltage vacuum circuit breaker 3 to be opened; when short circuit or open circuit occurs at the user side, the intelligent microcomputer protects the electric energy metering and control terminal to receive an instantaneous large current signal transmitted by the current sensor 4, and the high-voltage vacuum circuit breaker 3 is switched off by the intelligent microcomputer protecting the electric energy metering and control terminal; when the fault is repaired or the balance of the user is sufficient, the intelligent microcomputer protects the electric energy metering and control terminal to send a command to the high-voltage vacuum circuit breaker 3, so that the high-voltage vacuum circuit breaker 3 is switched on.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a measurement switch on outdoor post is fused to a secondary which characterized in that: including high-voltage circuit breaker mechanism case, the leading flank of high-voltage circuit breaker mechanism case is provided with the status indicator board, the both sides face of high-voltage circuit breaker mechanism case is provided with stand-by power supply and intelligent computer protection electric energy measurement management measurement and control terminal respectively, the side fixedly connected with high-pressure vacuum circuit breaker that goes up of high-voltage circuit breaker mechanism case, the top of high-pressure vacuum circuit breaker three-phase utmost point post is provided with high-pressure binding post of being qualified for the next round of competitions, the rear side of high-pressure vacuum circuit breaker three-phase utmost point post has connected gradually current sensor and voltage sensor, current sensor with the equal fixed connection of voltage sensor in the trailing flank of high-voltage circuit breaker mechanism case, current sensor keeps away from one side of high-pressure vacuum circuit breaker is provided with high-pressure inlet wire binding post.
2. The primary-secondary fusion outdoor on-pole metering switch of claim 1, wherein: the top surface of the voltage sensor is positioned below the high-voltage incoming line wiring terminal.
3. The primary-secondary fusion outdoor on-pole metering switch of claim 1, wherein: the three-phase pole of the high-voltage vacuum circuit breaker, the voltage sensor and the current sensor are all poured into a whole in a totally-enclosed manner by epoxy resin.
4. The primary-secondary fusion outdoor on-pole metering switch of claim 3, wherein: the current sensor comprises an LPCT coil LHa, an LPCT coil LHb and an LPCT coil LHc which are respectively arranged on a three-phase cable, sampling resistors Ra, Rb and Rc are respectively arranged in the LPCT coil LHa, the LPCT coil LHb and the LPCT coil LHc, an LPCT coil LHa ', an LPCT coil LHb' and an LPCT coil LHc 'are respectively arranged on the three-phase cable, and a sampling resistor Ro is arranged in the LPCT coil LHa'.
5. The primary-secondary fusion outdoor on-pole metering switch of claim 4, wherein: the voltage sensor comprises a lead L1, a lead L2 and a lead L3 which are respectively connected with a three-phase cable, a capacitor C1, a capacitor C2 and a capacitor C3 are connected in series on the lead L1, a capacitor C4, a capacitor C5 and a capacitor C6 are connected in series on the lead L2, a capacitor C3 and a capacitor C3 are connected in series on the lead L3, one end of the capacitor C3, the capacitor C3 and the capacitor C3 are connected with the capacitor C3 in common, one end of the capacitor C3 is grounded, the lead L3 is connected between the capacitor C3 and the C3, the lead L3 is connected between the capacitor C3 and the capacitor C3, the lead L3 is connected between the capacitor C3 and the lead L3, and the capacitor C3 are connected with the lead L3, and the capacitor C3, and the lead L3 are connected with the capacitor C3, and the lead L3, and the capacitor C3 are connected with the lead L3, and the capacitor C3, and the lead L3, and the capacitor C3 are connected with the capacitor C3, and conducting wires L10 and L11 are connected between the capacitor C9 and the capacitor C10 and between the capacitor C10 and the grounding point, and a conducting wire L12 is also connected between the capacitor C9 and the capacitor C10.
6. The primary-secondary fusion outdoor on-pole metering switch of claim 5, wherein: the upper side of the high-voltage circuit breaker mechanism box is adjacent to the lifting lugs fixedly connected between the poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122304062.XU CN216054469U (en) | 2021-09-23 | 2021-09-23 | One-time and two-time fusion outdoor on-column metering switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122304062.XU CN216054469U (en) | 2021-09-23 | 2021-09-23 | One-time and two-time fusion outdoor on-column metering switch |
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| CN216054469U true CN216054469U (en) | 2022-03-15 |
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| CN202122304062.XU Active CN216054469U (en) | 2021-09-23 | 2021-09-23 | One-time and two-time fusion outdoor on-column metering switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115360047A (en) * | 2022-09-20 | 2022-11-18 | 南方电网科学研究院有限责任公司 | Self-monitoring high-voltage switch device based on primary and secondary fusion |
-
2021
- 2021-09-23 CN CN202122304062.XU patent/CN216054469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115360047A (en) * | 2022-09-20 | 2022-11-18 | 南方电网科学研究院有限责任公司 | Self-monitoring high-voltage switch device based on primary and secondary fusion |
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