CN214953769U - Auxiliary power metering system - Google Patents
Auxiliary power metering system Download PDFInfo
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- CN214953769U CN214953769U CN202022936680.1U CN202022936680U CN214953769U CN 214953769 U CN214953769 U CN 214953769U CN 202022936680 U CN202022936680 U CN 202022936680U CN 214953769 U CN214953769 U CN 214953769U
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Abstract
The utility model belongs to the technical field of the power supply system field batch meter, specifically a service electricity metering system, include: the mounting box of measurement main part and installation measurement main part, the sliding seat is all installed at the relative both ends of mounting box, the cavity has all been seted up on a pair of sliding seat, the jack has all been seted up to the one end that a pair of sliding seat is close to each other, jack and cavity communicate each other, the slider is installed to the cavity with sliding, the inserted bar is installed to the jack with sliding, slider and inserted bar fixed connection, fixedly connected with connecting rod between a pair of inserted bar, install fixed block and barrier cloth on the connecting rod, the measurement main part includes metering device, metering device is provided with multi-functional electric energy meter, multi-functional electric energy meter is connected with intelligent terminal, intelligent terminal is connected with cutout time-recorder, the metering device surface is provided with the operating button cover plate. Through this technical scheme, the isolation cloth can carry out effectual protection to the measurement main part, and energy-saving low-voltage metering box adopts permanent magnet vacuum contactor as closes and divides the major element, has practiced thrift the electric energy.
Description
Technical Field
The utility model belongs to the technical field of the power supply system field batch meter, specifically a service power metering system.
Background
The power supply system is a system which is composed of a power supply system and a power transmission and distribution system and is used for generating electric energy and supplying and delivering the electric energy to electric equipment. The electric power supply system can be roughly divided into three forms of TN, IT and TT, wherein the TN system is divided into three expression forms of TN-C, TN-S and TN-C-S. The production of electric power is different from the production of other products, and it is characterized by that the three departments of sending, supplying and using are connected into a system, and can not be interrupted and completed at the same time, and their close connection is not necessary, and how they are mutually sold and how to calculate the quantity of electric energy by means of economic calculation, it is necessary to use a metering device to measure and calculate quantity of electric energy between three departments, and said metering device is an electric energy metering device. In each link of power generation, supply and utilization of electricity of an electric power system, a large number of electric energy metering devices are arranged. The device is used for measuring generated energy, station service power consumption, power supply quantity, electricity selling quantity and the like. The method provides a basis for making a production plan, making economic calculation reasonable and calculating the electric quantity. In the electricity consumption of various work such as industrial, agricultural production, trade and business operation, in order to strengthen the management, energetically the energy saving, the unit product power consumption is examined, the power consumption quota is formulated, improve economic effects, the electric energy metering device is the necessary measuring apparatus.
Most of the existing power supply system statistic devices are exposed in the air, and certain dust is accumulated on the surface of the existing power supply system statistic devices after the existing power supply system statistic devices are placed for a long time; in addition, at present, the power department adopts a low-voltage metering mode for a transformer with the capacity less than 315KVA, and the low-voltage metering prepayment tripping operation is completed by adopting an electromagnetic alternating current contactor, so that the following problems exist in the actual operation: the electromagnetic AC contactor is switched on and kept by the electromagnetic force generated by the silicon steel sheet by electrifying the coil, the coil is electrified for a long time, the coil accumulates day and month and consumes a large amount of electric energy, and when the voltage of a power grid is insufficient, the surface of the dynamic and static silicon steel sheets is uneven, or dust, foreign matters and the like exist, noise is generated, so that the coil is damaged.
Disclosure of Invention
An object of the utility model is to provide an auxiliary power metering system solves the problem that proposes in the above-mentioned background.
The utility model provides a technical scheme does:
an auxiliary power metering system comprises a metering main body and a mounting box, wherein the metering main body is mounted in the mounting box, the two opposite ends of the mounting box are respectively provided with a sliding seat, a pair of sliding seats are respectively provided with a cavity, one ends of the pair of sliding seats close to each other are respectively provided with a jack, the jack is communicated with the cavity, the cavity is internally and slidably provided with a slide block, the jack is internally and slidably provided with an insertion rod, the slide block is fixedly connected with the inserted rods, a connecting rod is fixedly connected between the pair of inserted rods, a fixed block and an isolating cloth are arranged on the connecting rod, the fixed block is provided with a pulling handle, the fixed block is fixedly connected with the mounting box through a lock body, one end of the isolation cloth far away from the connecting rod is wound on the winding roller, when the metering main body is not needed to be used, the metering main body can be effectively sealed, and dust accumulation is reduced;
the metering main body comprises a metering device and a switch device, the metering device is provided with a multifunctional electric energy meter, the multifunctional electric energy meter is connected with an intelligent terminal, the intelligent terminal is connected with a cutoff timer, and the outer surface of the metering device is provided with an operation button cover plate; the switch device is characterized in that a metering mutual inductor matched with the capacity of the transformer is arranged in the switch device, the metering mutual inductor is connected with a fuse type isolating switch, the fuse type isolating switch is connected with a permanent magnet type vacuum contactor, and the fuse type isolating switch and the permanent magnet type vacuum contactor are connected through a corresponding connecting bus.
Furthermore, a fixing clamp is installed on the connecting rod, one end of the isolation cloth is fixed by the connecting rod through the fixing clamp, and the isolation cloth is detached and cleaned.
Further, place and seted up on the seat and place the recess, place the inside upper and lower both ends of recess and install resetting means respectively, fixedly connected with dwang between resetting means and the winding roller can control the winding roller and rotate, and then control the winding of winding roller to the barrier cloth.
Furthermore, resetting means is motor or elasticity spool, and when the lock body unblock, resetting means can control the shrink of barrier cloth to placing in the recess of placing the seat.
Furthermore, the metering device is also provided with a closing indicator light, a separating indicator light and an owing acousto-optic alarm device.
Furthermore, the metering transformer is a high-precision dry transformer with a straight-through structure.
Furthermore, the main body of the metering box adopts a galvanized angle steel framework and a stainless steel plate is externally coated.
Furthermore, a metering independent chamber specially used for installing the power supply metering device is separated from the metering device, and observation windows are reserved on a box door in front of the multifunctional electric energy meter.
Furthermore, the batch meter electrical control loop includes closing circuit, separating brake circuit and arrearage tripping circuit.
The utility model discloses an aspect of the technical effect that technical scheme brought lies in: when the metering main body is not needed to be used, the handle is pulled, the winding roller rotates, the wound isolating cloth is discharged from the winding roller, the connecting rod moves leftwards, the sliding block slides leftwards in the cavity and is fixed with the lock body to the fixed block, the isolating cloth can effectively protect the metering main body at the moment, the accumulation of dust on the surface of the metering main body is reduced, the use of people in leisure and the like to the metering main body can also be reduced, when the metering main body is needed to be used, the lock body is opened, the reset device drives the winding roller to rotate, the winding roller rotates and winds the isolating cloth, and the connecting rod moves rightwards.
The utility model discloses an aspect of the technical effect that technical scheme brought lies in: this energy-saving low-voltage metering box adopts permanent magnetism formula vacuum contactor as closing branch major element, and permanent magnetism vacuum contactor's holding relies on permanent magnetism power to realize completely, and more traditional electromagnetic type contactor economize on electricity the rate is up to more than 99%, has practiced thrift the loss of electric energy, can not burn out the main contact because of quivering moreover, simultaneously, noiselessness, longe-lived.
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 a schematic structural diagram of an auxiliary power metering system according to the present invention;
FIG. 2 is a schematic view of a main metering body of the utility model;
the multifunctional electric energy meter comprises a measuring main body, a mounting box, a lock body, a sliding seat, a sliding block, a fixing block, a pulling handle, a winding roller, a groove 15, a placing groove 16, a rotating rod 17, a resetting device 18, a placing seat 100, a multifunctional electric energy meter, a 200 intelligent terminal 300, a cutout timer 400, a measuring device 500, an operating button cover plate 600, a measuring mutual inductor 700, a fuse type isolating switch 800 and a permanent magnet type vacuum contactor 5, isolating cloth 6, a cavity 7, a jack 8, a sliding block 9, an inserting rod 10, a connecting rod 11, a fixing clamp 12, a fixing block 13, a pulling handle 14, a winding roller.
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.
Example 1
As shown in fig. 1 and fig. 2, the utility model discloses an auxiliary power metering system, which comprises a metering main body 1 and a mounting box 2, wherein the metering main body 1 is arranged in the mounting box 2, two opposite ends of the mounting box 2 are both provided with a sliding seat 4, a pair of sliding seats 4 are both provided with a cavity 6, one ends of the pair of sliding seats 4 close to each other are both provided with a jack 7, the jack 7 is communicated with the cavity 6, a slide block 8 is arranged in the cavity 6 in a sliding way, an inserted bar 9 is arranged in the jack 7 in a sliding way, the slide block 8 is fixedly connected with the inserted bar 9, a connecting rod 10 is fixedly connected between the pair of inserted bars 9, a fixed block 12 and an isolating cloth 5 are arranged on the connecting rod 10, a pulling handle 13 is arranged on the fixed block 12, the fixed block 12 is fixedly connected with the mounting box 2 through a lock body 3, one end of the isolating cloth 5 far away from the connecting rod 10 is wound on a winding roller 14, the winding roller 14 is rotatably arranged in a placing seat 18, when the metering main body 1 is not needed to be used, the metering main body 1 can be effectively sealed, and dust accumulation on the surface of the metering main body is reduced.
In this embodiment, the connecting rod 10 is provided with the fixing clip 11, and the connecting rod 10 fixes one end of the isolation cloth 5 through the fixing clip 11, so that the isolation cloth 5 can be detached for cleaning.
In this embodiment, place and seted up on the seat 18 and place recess 15, place the inside upper and lower both ends of recess 15 and install resetting means 17 respectively, fixedly connected with dwang 16 between resetting means 17 and the winding roller 14 can control winding roller 14 and rotate.
As shown in the figure, the utility model provides an auxiliary power metering system, its measurement main part, including multi-functional electric energy meter 100, intelligent terminal 200, cutout time-recorder 300, metering device 400, operating button cover plate 500, measurement mutual-inductor 600, fuse formula isolator 700, permanent magnetism formula vacuum contactor 800, switching device.
The utility model discloses the box of measurement main part adopts galvanized angle steel skeleton, and external application corrosion resistant plate can be rain-proof, dustproof, theftproof, ventilation cooling, has sufficient intensity to ensure can not warp in transportation and the installation, can satisfy hang, imbed, fall to the ground, mode installation needs such as pole. The box has good ventilation, heat dissipation, dustproof, waterproof function, processes the louvre at box both sides wall, adds the stainless steel dust screen in the louvre, and dustproof mesh hole diameter is less than 1 mm.
The opening angle of the box door is larger than 90 degrees, the box door can be opened flexibly, the box door lock adopts an embedded handle pull rod lock, the door lock handle has the function of opening a lock nose after rotating to the position, and the rainproof cover plate is arranged.
The box body is internally divided into a metering device 400 and a switch device, a box door can be sealed by lead and lock, and the metering device 400 and the switch device are completely separated by a sealing plate.
The switch device is composed of a metering mutual inductor 600 matched with the capacity of the transformer, a fuse type isolating switch 700, a permanent magnet type vacuum contactor 800 and a corresponding connecting bus 8.
The metering device 400 is composed of the three-phase four-wire electronic multifunctional electric energy meter 100 and the intelligent terminal 200, a metering independent small chamber specially used for installing the power supply metering device is separated from the metering device 400, and an observation window is reserved on a box door in front of each multifunctional electric energy meter 100, so that metering personnel can conveniently read and check the meter.
The secondary winding of the current transformer and the electric energy meter are connected by six wires, and the secondary side of the current transformer is not grounded. The three phases adopt yellow, green and red copper insulated wires respectively, and the zero line adopts a blue wire. The sectional area of the connecting wire of the secondary current loop for electric energy metering adopts 4 squares, the sectional area of the connecting wire of the voltage loop adopts 2.5 squares, and the wires of the voltage loop and the current loop must be connected into the test junction box firstly and then connected into the watt-hour meter.
The metering transformer 600 should be of a straight-through configuration with an accuracy rating of 0.5S, a single current transformation ratio and a secondary capacity of 5 VA.
The AC contactor in the switch device adopts a permanent magnet type vacuum contactor 800, replaces the traditional electromagnet driving mechanism with the permanent magnet type driving mechanism, and replaces the electromagnetic device in the traditional product with a control device consisting of a permanent magnet and a microelectronic module.
The microelectronic module in the permanent magnet vacuum contactor 800 contains six basic components: the power supply rectification, the control of the power supply voltage real-time detection, the release of the stored energy, the detection of the voltage of the energy storage capacitor, the detection of the anti-interference threshold voltage and the release of the logic circuit.
The permanent magnet vacuum contactor 800 is switched on and kept by permanent magnetic force, a coil is not required to generate electromagnetic force through current to keep switched on and only has 0.8 mA-1.5 mA working current of an electronic module, and therefore electric energy can be saved to the maximum extent.
The permanent magnet type driving mechanism is a permanent magnet with fixed polarity which is arranged on the contactor linkage mechanism and interacts with a soft magnet with variable polarity which is solidified on the contactor base, thereby achieving the purposes of attraction, holding and release, and the electric service life can reach 60 ten thousand times.
The variable polarity of the soft magnet in the permanent magnet vacuum contactor 800 is caused by the electronic module solidified with the soft magnet to generate forward and reverse pulse currents for tens of milliseconds to twenty milliseconds, so that different polarities are generated. According to the field requirement, the set release voltage value is controlled by the control electronic module, and the reverse pulse current can be emitted after a period of time delay, so that the aim of low-voltage delay release or power-off delay release is fulfilled.
The permanent magnet AC contactor is completely held by the permanent magnet force, the attraction is completed once, the voltage fluctuation can not influence the permanent magnet force, or the permanent magnet AC contactor is in an attraction state, or is in a brake separating state, and can not be in an intermediate state, so that the main contact can not be burnt out due to vibration.
The metering device 400 is provided with a closing indicator light, a separating indicator light and an owing acousto-optic alarm device; the operating circuit is provided with a closing button, a separating button and an audible and visual alarm switch. The metering device 400 is internally provided with a prepayment electric energy meter, namely, the metering device has the functions of data processing, display, storage, alarm, automatic power off and the like; the meter measuring room is also provided with an intelligent terminal 200 designed by anti-electricity-theft software, so that the electricity safety is effectively realized, and the phenomenon of default of electricity charge is avoided.
The metering chamber door and the switch chamber door on the cabinet body are provided with devices for hanging metering lead seals, so that the whole metering cabinet can achieve the effects of full sealing, full insulation and electricity larceny prevention.
An electric control loop of an energy-saving low-voltage metering box comprises the following steps:
closing a circuit: an AC220 power supply X1 passes through a fuse FU1, a closing button SB1, an intermediate relay KS1 normally closed contact KS11 and a closing coil of a permanent magnet mechanism to reach a zero line N, when the permanent magnet mechanism obtains a closing instruction, a connecting lever is driven to close a moving contact and a static contact in a vacuum switch tube, after the moving contact and the static contact are closed, an auxiliary switch simultaneously cuts off the power supply for the permanent magnet mechanism, and a permanent magnet keeps the connection of a main loop.
A brake separating loop: the AC220 power supply X1 passes through the fuse FU1, the opening button SB2, the opening coil of the permanent magnetic mechanism to the zero line N, when the permanent magnetic mechanism obtains the opening instruction, the crank arm is driven to disconnect the moving contact and the static contact in the vacuum switch tube, after the moving contact and the static contact are disconnected, the auxiliary switch simultaneously cuts off the power supply for the permanent magnetic mechanism, and the permanent magnet keeps the disconnection state of the main loop.
Arrearage tripping: an AC220 power supply X1 is connected to a zero line N through a fuse FU1, a PJ arrearage tripping normally-open contact and an intermediate relay KS1 coil; when the time is not consumed, the PJ normally open contact is closed, the coil of the intermediate relay KS1 is electrified, and an AC220 power supply X1 passes through the fuse FU1, the normally open contact KS12 of the intermediate relay KS1 and the opening coil of the permanent magnet mechanism to the zero line N.
This energy-saving low-voltage metering box adopts permanent magnetism formula vacuum contactor as closing branch major element, and permanent magnetism vacuum contactor's holding relies on permanent magnetism power to realize completely, and more traditional electromagnetic type contactor economize on electricity the rate is up to more than 99%, has practiced thrift the loss of electric energy, can not burn out the main contact because of quivering moreover, simultaneously, noiselessness, longe-lived.
Claims (9)
1. An electricity service metering system, comprising: the measuring device comprises a measuring main body and a mounting box, wherein the measuring main body is mounted in the mounting box, sliding seats are mounted at two opposite ends of the mounting box, cavities are formed in a pair of the sliding seats, one ends, close to each other, of the pair of the sliding seats are provided with jacks, the jacks and the cavities are communicated with each other, sliders are slidably mounted in the cavities, insertion rods are slidably mounted in the jacks, the sliders and the insertion rods are fixedly connected, a connecting rod is fixedly connected between the pair of the insertion rods, a fixing block and isolating cloth are mounted on the connecting rod, a pulling handle is arranged on the fixing block, the fixing block is fixedly connected with the mounting box through a lock body, one end, far away from the connecting rod, of the isolating cloth is wound on a winding roller, and the measuring main body can be effectively sealed when the measuring main body is not required to be used;
the metering main body comprises a metering device and a switch device, the metering device is provided with a multifunctional electric energy meter, the multifunctional electric energy meter is connected with an intelligent terminal, the intelligent terminal is connected with a cutoff timer, and the outer surface of the metering device is provided with an operation button cover plate; the switch device is characterized in that a metering mutual inductor matched with the capacity of the transformer is arranged in the switch device, the metering mutual inductor is connected with a fuse type isolating switch, the fuse type isolating switch is connected with a permanent magnet type vacuum contactor, and the fuse type isolating switch and the permanent magnet type vacuum contactor are connected through a corresponding connecting bus.
2. The service electricity metering system of claim 1, wherein: the connecting rod is provided with a fixing clamp, one end of the isolation cloth is fixed by the connecting rod through the fixing clamp, and the isolation cloth is detached and cleaned.
3. The service electricity metering system of claim 1, wherein: still including placing the seat, place and seted up on the seat and place the recess, place the upper and lower both ends of recess inside and install resetting means respectively, fixedly connected with dwang between resetting means and the winding roller, control winding roller rotates, and then control winding roller is to the winding of barrier cloth.
4. The service electricity metering system of claim 3, wherein: the resetting device is an electric motor or an elastic scroll, and when the lock body is unlocked, the resetting device can control the isolating cloth to contract into the placing groove of the placing seat.
5. The service electricity metering system of claim 1, wherein: the metering device is also provided with a closing indicator light, a separating indicator light and an owing acousto-optic alarm device.
6. The service electricity metering system of claim 1, wherein: the metering mutual inductor is a high-precision dry mutual inductor with a straight-through structure.
7. The service electricity metering system of claim 1, wherein: the metering device is internally divided into metering independent small chambers specially used for installing the power supply metering device, and observation windows are reserved on box doors in front of the multifunctional electric energy meters.
8. The service electricity metering system of claim 1, wherein: the electric control loop of the metering system comprises a closing loop, an opening loop and an arrearage tripping loop.
9. The service electricity metering system of claim 1, wherein: the microelectronic module of the permanent magnet type vacuum contactor comprises a power supply rectification circuit, a control power supply voltage real-time detection circuit, an energy storage release logic circuit, an energy storage capacitor voltage detection circuit, an anti-interference threshold voltage detection circuit and a release logic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022936680.1U CN214953769U (en) | 2020-12-10 | 2020-12-10 | Auxiliary power metering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022936680.1U CN214953769U (en) | 2020-12-10 | 2020-12-10 | Auxiliary power metering system |
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| CN214953769U true CN214953769U (en) | 2021-11-30 |
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| CN202022936680.1U Active CN214953769U (en) | 2020-12-10 | 2020-12-10 | Auxiliary power metering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118150883A (en) * | 2024-05-10 | 2024-06-07 | 江苏百维能源科技有限公司 | Intelligent electric energy meter with electricity larceny prevention function |
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2020
- 2020-12-10 CN CN202022936680.1U patent/CN214953769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118150883A (en) * | 2024-05-10 | 2024-06-07 | 江苏百维能源科技有限公司 | Intelligent electric energy meter with electricity larceny prevention function |
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