CN214669247U - Portable electric energy metering box - Google Patents
Portable electric energy metering box Download PDFInfo
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- CN214669247U CN214669247U CN202120338384.3U CN202120338384U CN214669247U CN 214669247 U CN214669247 U CN 214669247U CN 202120338384 U CN202120338384 U CN 202120338384U CN 214669247 U CN214669247 U CN 214669247U
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Abstract
The utility model discloses a portable electric-energy metering box, be in including box and setting electric energy meter, distribution terminal, combination formula wiring row and at least a set of pincerlike current transformer in the box, wherein, every group pincerlike current transformer includes three pincerlike current transformer, wherein, and is three pincerlike current transformer overlaps respectively and establishes on the three-phase wire, and is three pincerlike current transformer respectively with the input of combination formula wiring row passes through the wire electricity and connects, the electric energy meter distribution terminal respectively with the input of combination formula wiring row passes through the wire electricity and connects, distribution terminal is used for long-range collection electric energy data. This portable electric energy metering box under the circumstances that does not have a power failure, can accurate discovery customer survey metering device where breaks down, and the loss also can be reduced for the customer to the timely discovery problem. Through setting up distribution terminal, can realize remote data acquisition, and compare, analysis, raise the efficiency.
Description
Technical Field
The utility model relates to a high-voltage circuit testing arrangement technical field, concretely relates to portable electric-energy metering box.
Background
In order to actively cope with severe and complex operation situations, the national grid company Limited develops special actions for upgrading and efficiency improvement, provides full-force control on the line loss of electric charge recovery, and realizes the excavation and potential improvement. And the technology and the management loss reduction are greatly promoted, and the 50% of the number of high-loss lines and transformer areas is ensured to be reduced.
Therefore, the company vigorously carries out line loss management work, carries out investigation aiming at the operation condition of the metering device of the high-voltage user, finds that the service life of the electric energy metering device of the high-voltage user is long in the investigation process, particularly when the abnormal condition is suspected to occur, the high-voltage combined metering box is electrified at the 10 kV line side and cannot climb a pole to accurately judge, and meanwhile, the influence on the production and the life of adjacent users is brought by considering that the time for power failure inspection or the time for replacing the metering device is long, so that the company and the failed high-voltage user cannot carry out economic accounting indirectly.
In view of the above situation, it is proposed in the industry to install a set of checking and metering devices on the low-voltage side of the transformer, and to compare the checking and metering devices with the fault metering devices, and to immediately require the high-voltage users to replace the metering devices by comparing the difference. However, power failure is also needed when the checking and metering device, particularly the low-voltage transformer, is installed.
How to solve when the high pressure user metering device appears unusually, install and examine the metering device and need not to have a power failure and quick, effective, realize the electric quantity contrast between charging and examination measurement to make and mend the electric quantity and have the foundation, it is a difficult problem in the front of the company to put into effect.
SUMMERY OF THE UTILITY MODEL
For overcoming prior art's defect, the utility model aims to provide a portable electric-energy metering box realizes the automatic collection of data under need not to have a power failure and quick, effectual installation condition.
For this, the utility model provides a portable electric-energy metering box, be in including box and setting electric energy meter, distribution terminal, combination formula wiring row and a set of at least pincerlike current transformer in the box, wherein, every group pincerlike current transformer includes three pincerlike current transformer, wherein, and is three pincerlike current transformer overlaps respectively and establishes on the three-phase wire, and is three pincerlike current transformer respectively with the input of combination formula wiring row passes through the wire electricity and connects, the electric energy meter distribution terminal respectively with the input of combination formula wiring row passes through the wire electricity and connects, distribution terminal is used for long-range collection electric energy data to after the backstage of main website initiates data acquisition signal, with data transmission to the backstage of main website.
Preferably, two groups of the pincerlike current transformers are arranged according to the use range, the secondary current output by the two groups of the pincerlike current transformers is 5A, the primary current of one group of the pincerlike current transformers is 1000A, and the primary current of the other group of the pincerlike current transformers is 500A.
Preferably, the bottom of the box body is provided with a plurality of universal wheels, and the side surface of the box body is provided with a lifting buckle, so that the box body is convenient to move; the back of the box body is provided with a telescopic pull rod.
Preferably, a double-layer spongy cushion is arranged in the box body and used for positioning the electric energy meter, the power distribution terminal, the combined wiring row, the pincerlike current transformer and the wire which are arranged in the box body.
The utility model provides a portable electric-energy metering box, 1) through setting up pincerlike circuit transformer, electric energy meter, under the circumstances that does not have a power failure, can accurate discovery customer survey metering device where breaks down, and in time the discovery problem also can reduce the loss for the customer. For power supply enterprises, the line loss can be greatly reduced, and a large amount of economic loss can be saved; 2) through setting up distribution terminal, can realize remote data acquisition, compare and the analysis, improve electric energy detection efficiency.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of a portable electric energy metering box of the present invention;
FIG. 2 is a schematic side view of the portable electric energy metering box of the present invention; and
fig. 3 is the internal structure schematic diagram of the portable electric energy metering box of the utility model.
Description of the reference numerals
1. A universal wheel; 2. locking; 3. lifting and buckling; 4. a telescopic pull rod; 5. an electric energy meter; 6. a power distribution terminal; 7. a combined wiring bar; 8. a split core current transformer; 9. a wire; 10. a spongy cushion.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 3, the utility model discloses a portable electric energy metering box, include: the electric energy meter 5, the power distribution terminal 6, the combined wiring row 7 and the pincerlike current transformer 8 are connected through the wires and used for testing the electric energy usage amount of the high-voltage equipment under the condition of no power outage. Each group of the pincerlike current transformers is provided with three pincerlike current transformers which are respectively clamped on three leads of three-phase power.
As shown in fig. 3, the three pincer-shaped current transformers 8 are respectively electrically connected with the input end of the combined wiring bar 7 through a wire 9, the electric energy meter 5 and the power distribution terminal 6 are respectively electrically connected with the input end of the combined wiring bar 7 through a wire 9, the power distribution terminal 6 is used for remotely acquiring electric energy data, and the three pincer-shaped current transformers 8 are respectively clamped on a three-phase conductor to generate induced currents for testing.
In the embodiment, the clamp-on current transformer 8 refers to the existing clamp-on current meter mode, a transformer in the conventional use range is customized, and according to the specific capacity range, 500/5A and 1000/5A are customized in each group, that is, the clamp-on current transformer 8 allows the measured primary current to be 500A or 1000A, and the secondary current output by the clamp-on current transformer 8 is 5A. Considering the universality, the inner ring of the pincer-shaped current transformer is selected to be a long hole, and the length of the long hole is 125mm, and the width of the long hole is 52 mm.
The clamp-on current transformer can be directly used for electric energy online detection when a primary current carrier is a copper bar or an aluminum bar, and the maximum applicable width of the copper bar is 120 mm. Load of the split core current transformer: less than or equal to 4 omega (mA output), 0.1 omega (1A output) and 2.5VA (5A output).
Still need certain installation time than open type current transformer, pincerlike current transformer only need like the pincerlike ampere meter, press open the jaw with wire or copper bar pincers income can, the installation rate is fast, insulating properties is good, the security performance is high, shortens operating time greatly, satisfies the electric quantity and compares the requirement, and safe, reliable. Therefore, the split core type current transformer is adopted as the best scheme of the portable electric energy metering box.
Specifically, the box is the cuboid box, has two parts of case and case lid, and the one end and the case lid hinged joint of case, the other end of case are connected through hasp and case lid, make case and case lid open and close.
The electric energy meter 5, the power distribution terminal 6, the combined wiring bar 7, the pincerlike current transformer 8 and the wire 9 are placed in the limiting holes, and the components in the box body can be fixed by the sponge pads 10. Meanwhile, the box body uses a blocking plate to isolate the current transformer from other components in a segmented manner.
In the embodiment, as shown in fig. 1-2, the bottom of the box is provided with a plurality of universal wheels 1, which facilitates the moving and transportation of the whole box body; the side surface of the box is provided with a lifting buckle 2, so that the box is convenient to move; the back of the box is provided with a telescopic pull rod 4, which is also convenient for the whole box body to move.
The box body shell is formed by adopting an aluminum alloy material, plays a role in protecting elements in the box body, and has the advantages of shock resistance, falling resistance and good corrosion resistance; the novel anti-falling bearing is strong in bearing capacity, durable, safe, firm, anti-collision, not easy to deform, good in anti-falling performance and capable of meeting the requirement of material selection. Simultaneously, in order to hold all usable components and parts, with the box design length 690mm, wide 475mm, high 300mm, the main part material is the box of aluminum alloy to increase PLASTIC LAMINATED and omnipotent sponge, play shockproof effect.
The working principle and working process of the present invention will be briefly described with reference to fig. 3.
And selecting a high-voltage combined metering box with a metering objection, testing a client with a low-voltage power distribution room for the first time, and realizing remote data acquisition. And (4) according to the 10 kV branch management of the synchronous system, the high-voltage combined metering box with abnormal problems is checked out, on-site investigation is arranged, and the priority comparison of low-voltage power distribution rooms is selected. And then hanging the developed metering box into the checking and metering of comparison customers, and accessing a corresponding system to realize remote meter reading, comparison and analysis.
In the specific test process, firstly, the pincerlike current transformers 8 with corresponding sizes are selected according to the current size of a circuit to be detected, then, the three pincerlike current transformers 8 are respectively connected with the input end of the combined wiring bar 7 through a lead, and meanwhile, the electric energy meter 5 and the power distribution terminal 6 are respectively connected with the input end of the combined wiring bar 7 through a lead 9 to form a measurement loop; and finally, respectively sleeving three pincerlike current transformers 8 on three leads of three-phase power, measuring electric energy data through the electric energy meter 5, and wirelessly transmitting the measured data to a data center through the power distribution terminal 6.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A portable electric energy metering box comprises a box body and is characterized in that,
the power distribution box also comprises an electric energy meter (5), a power distribution terminal (6), a combined wiring bar (7) and at least one group of pincerlike current transformers (8) which are arranged in the box body, wherein each group of the pincerlike current transformers (8) comprises three pincerlike current transformers (8),
the split core type power distribution system is characterized in that the split core type current transformers (8) are respectively electrically connected with the input end of the combined wiring bar (7) through a wire (9), the electric energy meter (5) is connected with the power distribution terminal (6) respectively and electrically connected with the input end of the combined wiring bar (7) through a wire (9), and the power distribution terminal (6) is used for remotely acquiring electric energy data and transmitting the data to the master station background after the master station background initiates data acquisition signals.
2. The portable electric energy metering box according to claim 1, characterized in that the two sets of the split core type current transformers (8) are arranged according to the using range, the secondary current output by the two sets of the split core type current transformers (8) is 5A, the primary current of one set of the split core type current transformers (8) is 1000A, and the primary current of the other set of the split core type current transformers (8) is 500A.
3. The portable electric energy metering box of claim 1, wherein the bottom of the box body is provided with a plurality of universal wheels (1), and the side surface of the box body is provided with a lifting buckle (2) for convenient movement; the back of the box body is provided with a telescopic pull rod (4).
4. The portable electric energy metering box of claim 1, characterized in that a double-layer spongy cushion (10) is arranged in the box body, and the spongy cushion (10) is used for positioning the electric energy meter (5), the power distribution terminal (6), the combined wiring row (7), the pincer-shaped current transformer (8) and the lead (9) which are arranged in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338384.3U CN214669247U (en) | 2021-02-06 | 2021-02-06 | Portable electric energy metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338384.3U CN214669247U (en) | 2021-02-06 | 2021-02-06 | Portable electric energy metering box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214669247U true CN214669247U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120338384.3U Active CN214669247U (en) | 2021-02-06 | 2021-02-06 | Portable electric energy metering box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214669247U (en) |
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2021
- 2021-02-06 CN CN202120338384.3U patent/CN214669247U/en active Active
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