CN203772911U - Charged pluggable high voltage electric energy metering device - Google Patents
Charged pluggable high voltage electric energy metering device Download PDFInfo
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- CN203772911U CN203772911U CN201420168425.9U CN201420168425U CN203772911U CN 203772911 U CN203772911 U CN 203772911U CN 201420168425 U CN201420168425 U CN 201420168425U CN 203772911 U CN203772911 U CN 203772911U
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- 238000004804 winding Methods 0.000 claims description 18
- 230000000875 corresponding Effects 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract 1
- 241001347978 Major minor Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The utility model provides a charged pluggable high voltage electric energy metering device. The device comprises a combined transformer which is fixedly arranged on a back plate of a metering cabinet, a main metering drawer and a subsidiary metering drawer. The main metering drawer is provided with a first A phase electric energy metering module and a first C phase electric energy metering module, thus a main meter metering device is formed. The subsidiary metering drawer is provided with a second A phase electric energy metering module and a second C phase electric energy metering module, thus a subsidiary meter metering device is formed. According to the utility model, the structure mode of the metering drawers is used, which is convenient for a user to carry out on-site installation, inspection, comparison and replacement; the design of two metering drawers is used, thus a standard meter can be used to carry out a charged test on a main meter, and on-site metering comparison can be carried out on main and subsidiary meters; data redundancy metering is realized; and data are safe and can be easily restored.
Description
Technical field
The utility model belongs to Electric Energy Metering Technology field, is specifically related to the charged direct measuring apparatus of high voltage electric energy that plugs of a kind of 3-35kV, and specially refers to the electric power meter of the direct electric energy metrical of a kind of drawer type noble potential and major-minor table feature.
Background technology
Although the direct measuring apparatus of existing 3-35kV high voltage electric energy have volume little, lightweight, save metal material, can check global error, effectively avoid the advantages such as stealing, also there are some problems, be to be mainly difficult to carry out field test and charged for replacement.
According to the country of electric energy metrical and industry standard, the electric power meter that charging is used (electric energy meter) will, according to the amount of capacity of load, regularly carry out field test, to prove that the error of electric energy meter is within the limits prescribed.The high-voltage electric-energy meter that independently current transformer, voltage transformer (VT) and low-voltage electric energy table form separately of use in the past has method and the rules of the charged check in scene of a set of maturation or the check that has a power failure, and electric energy meter is charged or the replacing that has a power failure is also very easy.But disclosed integral type directly the high-voltage electric energy meter of metering because gauge assembly is to be integrated in hot end, overall package, so be indoor or outdoor products is all difficult to carry out charged check, have a power failure to change also has inconvenience more.
Chinese invention patent publication number is in the < < high voltage electric energy direct metered system of CN 101216510A and method > >, to introduce the hot end that its current acquisition module of high-voltage electric energy meter, voltage acquisition module, electric energy metering module, communication module are just arranged on A phase and C phase, be integrated in an insulator with current sensor, voltage sensor, can only have a power failure tests changes with integral body.
Chinese utility model patent Granted publication CN 2501227Y, disclosed name is called mono-kind of < < with current transformer, the metering handcart > > of voltage transformer (VT) and protection fuse, and CN 201327959Y, disclosed name is called < < measuring trolley > >, these two disclosed measuring trolleys of patent documentation are by the current transformer of 10kV or 24kV metering use, voltage transformer (VT) and high-tension fuse are all integrated on a dolly, its measuring instrument is the cold end of the voltage transformer (VT) summation current transformer of setting, although be conducive to the quick and safety of repair and maintenance, but can only under power down mode, can pull out or push.
In order to solve the problem of the field test of direct access high-voltage electric energy meter and replacing, spy has invented a kind of direct measuring apparatus of high voltage electric energy of hot-swappable drawer structure.
Utility model content
The purpose of this utility model is to solve above-mentioned technical matters, and a kind of direct measuring apparatus of 3-35kV high pressure three-phase electric energy simple, easy to maintenance of changing is provided.
In the utility model, by the hot end at A, B, C three-phase, fixed voltage, current combined mutual inductor are set, movably on drawer, A phase gauge assembly and C phase gauge assembly are being set, gauge assembly is also arranged on hot end, cold end at drawer arranges display terminal, between gauge assembly and display terminal with optical fiber or wireless communicating.Drawer can warm swap, thereby can carry out easily field test and replacing.
More specifically, the utility model is achieved by the following technical solution:
The charged high voltage electric power meter that plugs, comprises the combined instrument transformer being fixedly mounted on metering cabinet backboard, and analytic accounting amount drawer and secondary metering drawer;
The one A phase electric energy metrical assembly and a C phase electric energy metrical assembly have been installed on analytic accounting amount drawer, have jointly been formed master meter measuring apparatus; On secondary metering drawer, the 2nd A phase electric energy metrical assembly and the 2nd C phase electric energy metrical assembly have been installed, have jointly been formed subtabulation measuring apparatus;
The one A phase electric energy metrical assembly is connected with Signal plug, and Signal plug is corresponding with A phase signals socket;
The one C phase electric energy metrical assembly is connected with Signal plug, and Signal plug is corresponding with C phase signals socket;
The 2nd A phase electric energy metrical assembly is connected with Signal plug, and Signal plug is corresponding with A phase signals socket;
The 2nd C phase electric energy metrical assembly is connected with Signal plug, and Signal plug is corresponding with C phase signals socket.
Analytic accounting amount drawer and secondary metering drawer can be with and be electrically interposed in or extract out combined instrument transformer, can not cause current transformer open circuit or voltage transformer (VT) short circuit; Analytic accounting amount drawer and secondary metering drawer can be distinguished independent insert combined type mutual inductor, form a set of complete high-voltage electric-energy meter, and also insert combined type mutual inductor forms the high-voltage electric-energy meter of major-minor list structure simultaneously.
Further scheme is: described combined instrument transformer is comprised of A phase current mutual inductor, C phase current mutual inductor, AB phase voltage mutual inductor, BC phase voltage mutual inductor.
Further scheme is: the primary winding of described A phase current mutual inductor and secondary coil are all arranged on the hot end of A phase, and its primary winding access A phase current, secondary coil access the A phase signals socket of major and minor metering drawer simultaneously;
The primary winding of described C phase current mutual inductor and secondary coil are all arranged on the hot end of C phase, and its primary winding access C phase current, secondary coil access the C phase signals socket of major and minor drawer simultaneously;
The current terminal of the signal plug of A phase metering units and C phase metering units signal plug is with automatic short circuit function, and when Signal plug inserts, electric current accesses automatically, when Signal plug is extracted, and electric current automatic short circuit;
Current transformer adopts the current transformer of electromagnetic type, or adopts the electronic current mutual inductor of small voltage output, or low power consumption current mutual inductor.
Further scheme is: the primary winding access AB phase voltage of described AB phase voltage mutual inductor, and secondary coil is arranged on the hot end of A phase power supply, accesses the A phase signals socket of major and minor drawer simultaneously; The primary winding access BC phase voltage of BC phase voltage mutual inductor, secondary coil is arranged on the hot end of C phase power supply, accesses the C phase signals socket of major and minor drawer simultaneously;
Described voltage transformer (VT) adopts electromagnetic potential transformer, capacitance voltage sensor or resistance-type voltage sensor.
Further scheme is: on described analytic accounting amount drawer, have display terminal, on secondary metering drawer, there is display terminal, display terminal and terminal are at the cold end of drawer, and electric energy metrical assembly is with adopting optical fiber or wireless mode to communicate between display terminal.
Further scheme is: a described A phase electric energy metrical assembly and the 2nd A phase electric energy metrical assembly are to be all connected on the noble potential of A phase, the one C phase electric energy metrical assembly and the 2nd C phase electric energy metrical assembly are to be all connected on the noble potential of C phase, and the noble potential of realizing electric current and voltage signal directly gathers and carry out the metering of electric energy.
In the application, display terminal can communicate by the metering collecting system with user by multiple telecommunication media (optical fiber, wireless, infrared, GPRS).
In addition, it should be noted that, metering drawer of the present utility model includes but not limited to drawer-type structure, can be also chute type structure, roller type structure, or other similar can be with the structure that is electrically interposed in, pushes and extract out, shifts out under high voltage.
The utlity model has following advantage:
1. adopt the frame mode of metering drawer, the scene that is more conducive to user is installed, checks, compares, is changed;
2. adopt two metering drawer design, standard scale easy to use to carry out charged check to master meter, also can reach the object of continuous data redundancy for the situ metrology comparison of major-minor table, make the safer more easily recovery of data;
3. combined instrument transformer adopts fixing installation, and electric energy metrical assembly is arranged on noble potential and avoids wiring error, prevents wrong meter, leaks quantity calculation, the generation of electricity theft prevention.
The utility model is compared with prior art:
1. scene of the present utility model installation, check, replacing are simply, conveniently;
2. the check of metering units, replacing can chargedly be carried out;
3. can adopt the two metering methods of major-minor table.
Accompanying drawing explanation
Fig. 1 is electrical principle block diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in accompanying drawing 1,2, a kind of charged high voltage electric power meter that plugs, comprises the combined instrument transformer 10 being fixedly mounted on metering cabinet backboard, and analytic accounting amount drawer 21 and secondary metering drawer 31; In figure, 1 is A phase, and 2 is B phase, and 3 is C phase.
The one A phase electric energy metrical assembly 22 and a C phase electric energy metrical assembly 23 have been installed on analytic accounting amount drawer 21, have jointly been formed master meter measuring apparatus; On secondary metering drawer 31, the 2nd A phase electric energy metrical assembly 32 and the 2nd C phase electric energy metrical assembly 33 have been installed, have jointly been formed subtabulation measuring apparatus;
The one A phase electric energy metrical assembly 22 is connected with Signal plug 24, and Signal plug 24 is corresponding with A phase signals socket 11;
The one C phase electric energy metrical assembly 23 is connected with Signal plug 25, and Signal plug 25 is corresponding with C phase signals socket 12;
The 2nd A phase electric energy metrical assembly 32 is connected with Signal plug 34, and Signal plug 34 is corresponding with A phase signals socket 13;
The 2nd C phase electric energy metrical assembly 33 is connected with Signal plug 35, and Signal plug 35 is corresponding with C phase signals socket 14.
Described combined instrument transformer 10 is comprised of A phase current mutual inductor 15, C phase current mutual inductor 16, AB phase voltage mutual inductor 17, BC phase voltage mutual inductor 18.
The primary winding of described A phase current mutual inductor 15 and secondary coil are all arranged on the hot end of A phase, and its primary winding access A phase current, secondary coil access the A phase signals socket 11,13 of major and minor metering drawer simultaneously;
The primary winding of described C phase current mutual inductor 16 and secondary coil are all arranged on the hot end of C phase, and its primary winding access C phase current, secondary coil access the C phase signals socket 12,14 of major and minor drawer simultaneously.
The current terminal of the signal plug 11,13 of A phase metering units and C phase metering units signal plug 12,14 can be with automatic short circuit function, when Signal plug 24,25,34,35 inserts, electric current accesses automatically, when Signal plug 24,25,34,35 is extracted, electric current automatic short circuit;
Current transformer adopts the current transformer of electromagnetic type, or adopts the electronic current mutual inductor of small voltage output, or low power consumption current mutual inductor.
The primary winding access AB phase voltage of described AB phase voltage mutual inductor 17, secondary coil is arranged on the hot end of A phase power supply, accesses the A phase signals socket 11,13 of major and minor drawer simultaneously; The primary winding access BC phase voltage of BC phase voltage mutual inductor 18, secondary coil is arranged on the hot end of C phase power supply, accesses the C phase signals socket 12,14 of major and minor drawer simultaneously;
Described voltage transformer (VT) adopts electromagnetic potential transformer, capacitance voltage sensor or resistance-type voltage sensor.
On described analytic accounting amount drawer 21, have display terminal 26, on secondary metering drawer 31, have display terminal 36, display terminal 26 and display terminal 36 are arranged on the cold end of drawer, and electric energy metrical assembly is with adopting optical fiber or wireless mode to communicate between display terminal.
A described A phase electric energy metrical assembly 22 and the 2nd A phase electric energy metrical assembly 32 are to be all connected on the noble potential of A phase, the one C phase electric energy metrical assembly 23 and the 2nd C phase electric energy metrical assembly 33 are to be all connected on the noble potential of C phase, and the noble potential of realizing electric current and voltage signal directly gathers and carry out the metering of electric energy.
In the application, display terminal can communicate by the metering collecting system with user by multiple telecommunication media (optical fiber, wireless, infrared, GPRS).
In addition, it should be noted that, metering drawer of the present utility model includes but not limited to drawer-type structure, can be also chute type structure, roller type structure, or other similar can be with the structure that is electrically interposed in, pushes and extract out, shifts out under high voltage.
Claims (6)
1. the charged high voltage electric power meter that plugs, is characterized in that: comprise the combined instrument transformer (10) being fixedly mounted on metering cabinet backboard, and analytic accounting amount drawer (21) and secondary metering drawer (31);
The one A phase electric energy metrical assembly (22) and a C phase electric energy metrical assembly (23) have been installed on analytic accounting amount drawer (21), have jointly been formed master meter measuring apparatus; On secondary metering drawer (31), the 2nd A phase electric energy metrical assembly (32) and the 2nd C phase electric energy metrical assembly (33) have been installed, have jointly been formed subtabulation measuring apparatus;
The one A phase electric energy metrical assembly (22) is connected with Signal plug (24), and Signal plug (24) is corresponding with A phase signals socket (11);
The one C phase electric energy metrical assembly (23) is connected with Signal plug (25), and Signal plug (25) is corresponding with C phase signals socket (12);
The 2nd A phase electric energy metrical assembly (32) is connected with Signal plug (34), and Signal plug (34) is corresponding with A phase signals socket (13);
The 2nd C phase electric energy metrical assembly (33) is connected with Signal plug (35), and Signal plug (35) is corresponding with C phase signals socket (14).
2. the charged high voltage electric power meter that plugs according to claim 1, is characterized in that: described combined instrument transformer (10) is comprised of A phase current mutual inductor (15), C phase current mutual inductor (16), AB phase voltage mutual inductor (17), BC phase voltage mutual inductor (18).
3. the charged high voltage electric power meter that plugs according to claim 2, it is characterized in that: the primary winding of described A phase current mutual inductor (15) and secondary coil are all arranged on the hot end of A phase, its primary winding access A phase current, secondary coil access the A phase signals socket (11,13) of major and minor metering drawer simultaneously;
The primary winding of described C phase current mutual inductor (16) and secondary coil are all arranged on the hot end of C phase, and its primary winding access C phase current, secondary coil access the C phase signals socket (12,14) of major and minor drawer simultaneously;
The current terminal of the signal plug of A phase metering units (11,13) and C phase metering units signal plug (12,14) is with automatic short circuit function, when Signal plug (24,25,34,35) inserts, electric current accesses automatically, when Signal plug (24,25,34,35) is extracted, electric current automatic short circuit;
Current transformer adopts the current transformer of electromagnetic type, or adopts the electronic current mutual inductor of small voltage output, or low power consumption current mutual inductor.
4. the charged high voltage electric power meter that plugs according to claim 2, it is characterized in that: the primary winding access AB phase voltage of described AB phase voltage mutual inductor (17), secondary coil is arranged on the hot end of A phase power supply, accesses the A phase signals socket (11,13) of major and minor drawer simultaneously; The primary winding access BC phase voltage of BC phase voltage mutual inductor (18), secondary coil is arranged on the hot end of C phase power supply, accesses the C phase signals socket (12,14) of major and minor drawer simultaneously;
Described voltage transformer (VT) adopts electromagnetic potential transformer, capacitance voltage sensor or resistance-type voltage sensor.
5. the charged high voltage electric power meter that plugs according to claim 1, it is characterized in that: on described analytic accounting amount drawer (21), have display terminal (26), on secondary metering drawer (31), there is display terminal (36), display terminal (26) is arranged on the cold end of analytic accounting amount drawer (21), display terminal (36) is arranged on the cold end of secondary metering drawer (31), and electric energy metrical assembly is with adopting optical fiber or wireless mode to communicate between display terminal.
6. the charged high voltage electric power meter that plugs according to claim 1, it is characterized in that: a described A phase electric energy metrical assembly (22) and the 2nd A phase electric energy metrical assembly (32) are to be all connected on the noble potential of A phase, the one C phase electric energy metrical assembly (23) and the 2nd C phase electric energy metrical assembly (33) are to be all connected on the noble potential of C phase, and the noble potential of realizing electric current and voltage signal directly gathers and carry out the metering of electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168425.9U CN203772911U (en) | 2014-04-08 | 2014-04-08 | Charged pluggable high voltage electric energy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168425.9U CN203772911U (en) | 2014-04-08 | 2014-04-08 | Charged pluggable high voltage electric energy metering device |
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| Publication Number | Publication Date |
|---|---|
| CN203772911U true CN203772911U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168425.9U Active CN203772911U (en) | 2014-04-08 | 2014-04-08 | Charged pluggable high voltage electric energy metering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN106711780A (en) * | 2017-01-04 | 2017-05-24 | 繁昌县易能科技有限责任公司 | Novel multifunctional measuring cabinet |
-
2014
- 2014-04-08 CN CN201420168425.9U patent/CN203772911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN106711780A (en) * | 2017-01-04 | 2017-05-24 | 繁昌县易能科技有限责任公司 | Novel multifunctional measuring cabinet |
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