CN220188605U - Automatic electric energy meter terminal intelligent plugging device that matches - Google Patents
Automatic electric energy meter terminal intelligent plugging device that matches Download PDFInfo
- Publication number
- CN220188605U CN220188605U CN202223546989.5U CN202223546989U CN220188605U CN 220188605 U CN220188605 U CN 220188605U CN 202223546989 U CN202223546989 U CN 202223546989U CN 220188605 U CN220188605 U CN 220188605U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- plug
- live wire
- zero
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Automatic electric energy meter terminal intelligence grafting device of matching relates to electric energy meter technical field. The device comprises a base, wherein the base comprises a back plate and a bottom bracket; the bottom support is provided with a live wire inlet plug, a live wire outlet plug, a zero wire inlet plug and a zero wire outlet plug. The intelligent plug-in device is arranged along with factory preset of the ammeter box, and the ammeter is directly plugged into the intelligent plug-in device during site construction, so that extra wire-in work is not needed, the site installation efficiency is greatly improved, and the risk of site wiring errors is avoided; the operation of quickly installing the electric energy meter and replacing the electric energy meter without power failure is realized; when the temperature exceeds the early warning threshold value, early warning events and records can be generated, so that subsequent fault analysis and processing are facilitated; the binding and application processes of the connector are greatly simplified; the transmission efficiency is greatly improved by packing or uploading the uploaded data, and a powerful data support is provided for the fine line loss management and fault research and judgment of the power enterprises.
Description
Technical Field
The utility model relates to the technical field of electric energy meters.
Background
With the rapid development of smart grids, electric energy meters have entered into thousands of households. In the application of the electric power system, the electric energy meter is used as terminal acquisition and metering equipment, the installation quantity is huge, and the requirements on stability, metering accuracy and safety are high. The following problems mainly exist in the current electric energy meter application:
1. the electric energy meter is mainly arranged in the electric meter box, a large amount of field manual wiring is needed during electric meter installation and construction, including live wire incoming line, live wire outgoing line, zero wire incoming line, zero wire outgoing line, RS485 line and the like of the electric meter, and various risks such as nonstandard electric energy meter installation, missed connection, wrong connection, poor contact of cable interfaces and the like exist during manual operation;
2. when the electric energy meter is replaced due to the fault of the electric energy meter and other reasons in daily maintenance, the user of the electric energy meter needs to be powered off before the operation, and the normal production and life of the user are affected; the operation efficiency of replacing the electric energy meter is low, and various risks such as missed connection, wrong connection, poor contact of a cable interface and the like are easy to occur;
3. in field application, the problems of damage to the electric energy meter, large metering error of the electric energy meter, fire and the like are caused by overheat of the terminal connector of the electric energy meter due to poor wiring, overload of electricity and the like. The existing electric energy meter has no functions of monitoring the temperature of an inlet and outlet terminal, and the like, cannot perform tracing and early warning after a problem occurs, and is difficult in fault analysis;
4. when the conventional connector is used, the connector needs to be uniquely bound with an electric energy meter, manual code scanning or manual information input matching with the electric energy meter is needed, the operation is complicated, the input error risk exists at the same time, and the large-area popularization and application of the connector are not facilitated.
5. The existing electric energy meter acquisition is limited by the constraints of the electric energy meter transmission rate, the uplink communication bandwidth of the collector/concentrator, the limited acquisition main station resources and the like, and the electric energy meter electric quantity information is usually acquired once every 24 hours or every 15 minutes, key data are missing (voltage, current, abnormality, load curve and the like), the data acquisition frequency and data items are low, and the fine line loss and fault analysis requirements of power grid companies cannot be met.
Disclosure of Invention
The utility model aims to solve the technical problems of the 1 st and the 2 nd provided in the background technology, and adopts the following technical scheme:
the intelligent plugging device for the electric energy meter terminals is characterized by comprising a base, wherein the base is used for fixedly installing an electric energy meter in an electric energy meter box and comprises a back plate and a bottom bracket arranged at the bottom of the front side surface of the back plate; the bottom bracket is provided with a live wire inlet plug, a live wire outlet plug, a zero wire inlet plug and a zero wire outlet plug which are respectively matched and spliced with the live wire inlet jack, the live wire outlet jack, the zero wire inlet jack and the zero wire outlet jack of the electric energy meter; the lower ends of the live wire inlet plug, the live wire outlet plug, the zero wire inlet plug and the zero wire outlet plug are all wire terminals.
The technical scheme for further limiting the utility model comprises the following steps:
the collet on be equipped with two RS485 thimble that are used for with the RS485 interface correspondence cooperation grafting of electric energy meter.
A fire wire short-circuit switch for short-circuiting the fire wire inlet plug and the fire wire outlet plug is arranged in the bottom bracket; the utility model provides a live wire short circuit switch including the conducting strip of electric connection short circuit live wire inlet wire plug and live wire outlet plug and be used for driving the conducting strip disconnection and live wire inlet wire plug or live wire outlet plug electricity connection's push rod, the push rod stretch out from the collet top, under electric energy meter and base fixed connection state, the push rod by electric energy meter bottom edge push away the disconnection of live wire short circuit switch.
The bottom support is internally provided with a zero line short-circuit switch for shorting the zero line inlet plug and the zero line outlet plug; the zero line short circuit switch structure is the same as the fire wire short circuit switch structure.
The two RS485 ejector pins are connected with an RS485 communication unit, and the RS485 communication unit is connected with a CPU processing unit; the CPU processing unit is also connected with a power supply unit, a clock unit and a storage unit.
The CPU processing unit is also connected with a temperature sampling unit which is arranged in the live wire inlet plug, the live wire outlet plug, the zero line inlet plug and/or the zero line outlet plug.
And the CPU processing unit is also connected with an audible and visual indication and alarm unit.
And the CPU processing unit is also connected with a Bluetooth communication unit or a power carrier which is used for being in communication connection with an intelligent measuring switch collector in the ammeter box.
The CPU processing unit reads information of the electric energy meter through the two RS485 ejector pins, wherein the information comprises electric quantity information and voltage and current information.
The top of the backboard is provided with an elastic clamping hook which is clamped with the electric energy meter.
The beneficial effects of the utility model are as follows:
1. the intelligent plug-in device is arranged along with factory preset of the ammeter box, and the ammeter is directly plugged into the intelligent plug-in device during site construction, so that extra wire-in work is not needed, the site installation efficiency is greatly improved, and the risk of site wiring errors is avoided;
2. the live wire short-circuit switch realizes the crimping linkage control of the electric energy meter, when the electric energy meter is not installed on the electric energy meter, the live wire inlet plug and the live wire outlet plug are in a short-circuit state, when the electric energy meter is installed on the electric energy meter, the live wire short-circuit switch is pressed and disconnected under the action of the push rod, so that the electric energy meter is connected and electrified for metering, and through the design, the electric energy meter can be quickly installed and replaced without power failure;
3. the temperature sampling unit can realize real-time acquisition of the temperature of the inlet and outlet terminals of the electric energy meter, and can generate early warning events and records when the temperature exceeds an early warning threshold value, so that the subsequent fault analysis and processing are facilitated;
4. according to the utility model, the two RS485 ejector pins are correspondingly matched and inserted with the RS485 interface of the electric energy meter, and the meter box can automatically communicate with the electric energy meter in real time after being electrified, so that the address matching with the electric energy meter is completed, and the binding and application processes of the connector are greatly simplified;
5. aiming at the problems of low frequency and low density of data acquisition of the electric energy meter in the prior art, the method supports the full data acquisition of minute-level data of the electric energy meter by applying the distributed edge computing technology, and the transmission efficiency is greatly improved by packing or uploading the uploaded data, so that powerful data support is provided for fine line loss management and fault research and judgment of an electric power enterprise.
The utility model has the advantages of the practicality is strong, has reduced electric power enterprise and user construction operation intensity by a wide margin, has ensured operation safety and power consumption safety, has improved user's power consumption and has experienced, simultaneously provides the effective means of meticulous line loss management, trouble early warning and failure analysis for electric power enterprise.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic perspective view of the protective cover of the present utility model in an opened state;
FIG. 3 is a schematic view of another perspective view of the protective cover in an opened state;
FIG. 4 is a schematic block diagram of the circuit of the present utility model;
FIG. 5 is a system architecture diagram of the present utility model during application;
fig. 6 is a flow chart of the operation of the present utility model.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and preferred embodiments of the utility model.
Referring to fig. 1 to 6, the automatic matching electric energy meter terminal intelligent plugging device disclosed by the utility model comprises a base for fixedly mounting an electric energy meter in an electric energy meter box, wherein the base comprises a back plate 1 and a bottom bracket 2 arranged at the bottom of the front side surface of the back plate; the bottom support 2 is provided with a live wire inlet plug 31, a live wire outlet plug 32, a zero wire inlet plug 33 and a zero wire outlet plug 34 which are respectively matched and spliced with a live wire inlet jack, a live wire outlet jack, a zero wire inlet jack and a zero wire outlet jack of the electric energy meter; the lower ends of the live wire inlet plug 31, the live wire outlet plug 32, the zero wire inlet plug 33 and the zero wire outlet plug 34 are all wire terminals. That is, in the application process of the intelligent plugging device, a plurality of intelligent plugging devices are installed in the same electric meter box, the back plate 1 of each intelligent plugging device is fixed on the back plate of the electric meter box through screws, and the live wire inlet jack, the live wire outlet jack, the zero wire inlet jack and the zero wire outlet jack of the electric meter are aligned and plugged with the live wire inlet plug 31, the live wire outlet plug 32, the zero wire inlet plug 33 and the zero wire outlet plug 34, and after the intelligent plugging devices are plugged in place, the hanging hole of the electric meter is just hung on the elastic clamping hook 11 arranged at the top of the back plate 1. The live wire incoming line and the live wire outgoing line which are connected with the electric energy meter are changed into the lead wire incoming line and the live wire outgoing line which are connected with the lead wire terminal at the lower end of each corresponding plug, when the electric energy meter box leaves the factory, the live wire incoming line and the live wire incoming line which are required by each electric energy meter in the installation box can be standardized in advance, and various risks such as irregular installation, missed connection, misconnection, poor contact of a cable interface and the like in the existing installation process are avoided.
The utility model is not only suitable for the installation of the traditional electric energy meter, but also suitable for the installation of the electric energy meter for remote meter reading, namely, the base 2 is provided with two RS485 thimble 4 which are correspondingly matched and spliced with an RS485 interface of the electric energy meter. The two RS485 ejector pins 4 are correspondingly matched and inserted with the RS485 interface of the electric energy meter synchronously while the live wire inlet plug 31, the live wire outlet plug 32, the zero wire inlet plug 33 and the zero wire outlet plug 34 are inserted into the live wire inlet jack, the live wire outlet jack, the zero wire inlet jack and the zero wire outlet jack of the electric energy meter. The intelligent measuring switch/collector for remote meter reading in the ammeter box can be in communication connection with each intelligent plug-in device in the box in advance when leaving a factory.
In order to solve the technical problems that the user of the electric energy meter is powered off and normal production and life of the user are influenced when the electric energy meter is maintained and replaced in daily life, the utility model is characterized in that a live wire short-circuit switch for short-circuiting a live wire inlet plug and a live wire outlet plug is arranged in the base 2; the utility model provides a live wire short circuit switch including the conducting strip of electric connection short circuit live wire inlet wire plug and live wire outlet plug and be used for driving conducting strip disconnection and live wire inlet wire plug or live wire outlet plug electricity connection's push rod 5, push rod 5 stretch out from collet 2 top, under electric energy meter and base fixed connection state, push rod 5 by electric energy meter bottom edge push fire wire short circuit switch disconnection. The intelligent plug-in device has the advantages that before the electric energy meter is taken down from the intelligent plug-in device, the electric energy meter releases the push rod 5, the conducting strip returns under the action of elasticity to achieve short circuit between the live wire inlet plug and the live wire outlet plug, and after the electric energy meter is taken down, power supply to a user is kept unchanged, and normal production and life electricity consumption of the user cannot be affected. After a new electric energy meter is installed, the push rod 5 is pressed to push the live wire short-circuit switch to be disconnected, the electric energy meter is connected and electrified for metering, and the quick installation of the electric energy meter and the operation of replacing the electric energy meter without power failure can be effectively solved through the design.
In the specific implementation process, the conducting strip is for example two copper strips which are in arc elastic contact, the two copper strips are respectively connected with a live wire inlet plug and a live wire outlet plug, the bottom end of the push rod 5 adopting an insulating conical block is arranged above the contact position of the two copper strips, and the push rod 5 is pushed by the bottom edge of the electric energy meter to push the two copper strips to be separated, so that the disconnection state of the live wire short-circuit switch is achieved; after the electric energy meter is lifted, the push rod 5 is extruded upwards under the elasticity of the two copper sheets, or the push rod 5 is upwards moved under the action of a spring sleeved on the push rod 5, so that the insulating conical block at the bottom end of the push rod 5 is separated from the two copper sheets, and the two copper sheets are in electrical contact.
Because most of the zero line inlet jacks and zero line outlet jacks of the electric energy meter are connected in parallel, the zero line inlet plug 33 and the zero line outlet plug 34 of the utility model are preferably in direct short circuit in the base 2. In the specific implementation process, if the zero line inlet plug 33 and the zero line outlet plug 34 are not suitable for direct short circuit, the utility model can also be provided with a zero line short circuit switch in the base 2 for short-circuiting the zero line inlet plug and the zero line outlet plug; the zero line shorting switch structure is the same as the live line shorting switch structure, and will not be repeated here.
In order to realize communication with the electric energy meter, the utility model solves the defect that the traditional electric energy meter cannot provide key data such as voltage, current, abnormality, load curve and the like required by fine line loss and fault analysis of a power grid company due to the restriction that the acquisition is limited by the transmission rate of the electric energy meter, the uplink communication bandwidth of an acquisition device/a concentrator, the limited resource of an acquisition main station and the like, and the two RS485 ejector pins 4 are connected with an RS485 communication unit, and the RS485 communication unit is connected with a CPU processing unit; the CPU processing unit is also connected with a power supply unit, a clock unit and a storage unit. The CPU processing unit is connected with the RS485 interface of the electric energy meter through the two RS485 ejector pins 4, so that electric quantity information of the electric energy meter can be obtained in real time, real-time voltage and current information can be obtained, key data such as an abnormal load curve and the like are generated according to the real-time voltage and current information and are temporarily stored in the storage unit, the data collection of the minute-level electric energy meter is supported through the application of a distributed edge computing technology, the uploading data can be transmitted in a packing or file uploading mode, the transmission efficiency is greatly improved, and powerful data support is provided for fine line loss management and fault research and judgment of an electric power enterprise. In addition, after the electric energy meter is replaced, as the connection between the intelligent measuring switch collector in the electric energy meter box is unchanged, the electric energy meter is not bound by means of complicated operations such as manual input or scanning, and the intelligent measuring switch collector is automatically and uniquely bound with the electric energy meter after being connected with the electric energy meter through the RS485 thimble 4.
Aiming at the problems that the electric energy meter wiring terminal is overheated easily caused by poor wiring of an electric energy meter inlet wire and an outlet wire or overload of electricity, so that the electric energy meter has large metering deviation or fire and the like, no effective monitoring and early warning means and difficult fault analysis exist at present, the CPU processing unit is also connected with a temperature sampling unit, and the temperature sampling unit is arranged in the live wire inlet wire plug, the live wire outlet wire plug, the zero wire inlet wire plug and/or the zero wire outlet wire plug, so that the real-time acquisition of the temperature of the electric energy meter inlet wire and outlet wire terminal can be realized, early warning events and records can be generated when the temperature exceeds an early warning threshold value, and the subsequent fault analysis and processing are convenient; and the CPU processing unit is also connected with an acousto-optic indication and alarm unit according to the requirement, and local alarm prompt is carried out through the acousto-optic indication and alarm unit, so that maintenance personnel can intuitively carry out fault finding.
The communication mode between the intelligent measuring switch collector in the ammeter box and the CPU processing unit of each intelligent plugging device can adopt a Bluetooth communication unit or a power carrier communication mode besides the RS485 communication unit.
The software operation flow of the utility model is shown in fig. 6, and the software of the utility model functionally realizes the communication of the electric energy meter, such as: the meter reading device has the functions of meter reading, automatic unique binding with the electric energy meter, temperature acquisition of the input and output strong electric terminals of the electric energy meter, data processing and uploading, abnormal alarm indication, record storage, local upgrading maintenance, uplink data forwarding or transparent transmission of the intelligent measuring switch or the collector and the like.
The utility model has the advantages of the practicality is strong, has reduced electric power enterprise and user construction operation intensity by a wide margin, has ensured operation safety and power consumption safety, has improved user's power consumption and has experienced, simultaneously provides the effective means of meticulous line loss management, trouble early warning and failure analysis for electric power enterprise.
Claims (10)
1. The intelligent plugging device for the electric energy meter terminals is characterized by comprising a base, wherein the base is used for fixedly installing an electric energy meter in an electric energy meter box and comprises a back plate and a bottom bracket arranged at the bottom of the front side surface of the back plate; the bottom bracket is provided with a live wire inlet plug, a live wire outlet plug, a zero wire inlet plug and a zero wire outlet plug which are respectively matched and spliced with the live wire inlet jack, the live wire outlet jack, the zero wire inlet jack and the zero wire outlet jack of the electric energy meter; the lower ends of the live wire inlet plug, the live wire outlet plug, the zero wire inlet plug and the zero wire outlet plug are all wire terminals.
2. The automatically matched intelligent power meter terminal plugging device of claim 1, wherein: the collet on be equipped with two RS485 thimble that are used for with the RS485 interface correspondence cooperation grafting of electric energy meter.
3. The automatically matched intelligent power meter terminal plugging device of claim 1, wherein: a fire wire short-circuit switch for short-circuiting the fire wire inlet plug and the fire wire outlet plug is arranged in the bottom bracket; the utility model provides a live wire short circuit switch including the conducting strip of electric connection short circuit live wire inlet wire plug and live wire outlet plug and be used for driving the conducting strip disconnection and live wire inlet wire plug or live wire outlet plug electricity connection's push rod, the push rod stretch out from the collet top, under electric energy meter and base fixed connection state, the push rod by electric energy meter bottom edge push away the disconnection of live wire short circuit switch.
4. The automatically matched intelligent power meter terminal plugging device of claim 3, wherein: the bottom support is internally provided with a zero line short-circuit switch for shorting the zero line inlet plug and the zero line outlet plug; the zero line short circuit switch structure is the same as the fire wire short circuit switch structure.
5. The automatically matched intelligent power meter terminal plugging device of claim 2, wherein: the two RS485 ejector pins are connected with an RS485 communication unit, and the RS485 communication unit is connected with a CPU processing unit; the CPU processing unit is also connected with a power supply unit, a clock unit and a storage unit.
6. The automatically-matched intelligent plugging device for terminals of an electric energy meter of claim 5, wherein: the CPU processing unit is also connected with a temperature sampling unit which is arranged in the live wire inlet plug, the live wire outlet plug, the zero line inlet plug and/or the zero line outlet plug.
7. The automatically matched intelligent power meter terminal plugging device of claim 5 or 6, wherein: and the CPU processing unit is also connected with an audible and visual indication and alarm unit.
8. The automatically matched intelligent power meter terminal plugging device of claim 5 or 6, wherein: and the CPU processing unit is also connected with a Bluetooth communication unit or a power carrier which is used for being in communication connection with an intelligent measuring switch collector in the ammeter box.
9. The automatically matched intelligent power meter terminal plugging device of claim 5 or 6, wherein: the CPU processing unit reads information of the electric energy meter through the two RS485 ejector pins, wherein the information comprises electric quantity information and voltage and current information.
10. The automatically matched intelligent power meter terminal plugging device of claim 1, wherein: the top of the backboard is provided with an elastic clamping hook which is clamped with the electric energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546989.5U CN220188605U (en) | 2022-12-30 | 2022-12-30 | Automatic electric energy meter terminal intelligent plugging device that matches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546989.5U CN220188605U (en) | 2022-12-30 | 2022-12-30 | Automatic electric energy meter terminal intelligent plugging device that matches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220188605U true CN220188605U (en) | 2023-12-15 |
Family
ID=89105370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223546989.5U Active CN220188605U (en) | 2022-12-30 | 2022-12-30 | Automatic electric energy meter terminal intelligent plugging device that matches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220188605U (en) |
-
2022
- 2022-12-30 CN CN202223546989.5U patent/CN220188605U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202634082U (en) | On-line monitoring and early warning system for direct-current equipment of substations | |
| CN111865366A (en) | Detection apparatus for on-spot fortune of HPLC maintains module | |
| CN102611196A (en) | 10KV power grid state monitoring and fault process automation system | |
| CN111077463A (en) | Balanced maintenance system for online monitoring of storage battery | |
| CN220188605U (en) | Automatic electric energy meter terminal intelligent plugging device that matches | |
| CN211701485U (en) | Intelligent gateway equipment for distributed power supply control | |
| CN116125117A (en) | Automatic electric energy meter terminal intelligent plugging device that matches | |
| CN201509064U (en) | Three-phase power source phase-sequence adjusting device | |
| CN101750985B (en) | Remote temperature sensing and monitoring system and method for 0.4kV low voltage switch | |
| CN112881765B (en) | Anti-misoperation uninterrupted electricity-changing meter equipment | |
| CN214506661U (en) | System based on low-voltage transformer area line loss rapid positioning | |
| CN210129768U (en) | Novel distribution network data acquisition terminal | |
| CN211856644U (en) | Analog switch circuit based on distribution automation terminal test | |
| CN208588781U (en) | A kind of low-voltage collecting meter reading power consumption band carries and the automatic testing equipment of compatibility facility | |
| CN219758411U (en) | Test equipment before delivery of II-type concentrator | |
| CN211878029U (en) | Power failure troubleshooting device | |
| CN219369897U (en) | Flat wire high-voltage pinhole detection system | |
| CN202150742U (en) | 10 kV electrical network state monitoring and fault processing automation system | |
| CN219420304U (en) | Intelligent alternating-current distribution wiring circuit | |
| CN204330961U (en) | A kind of unattended operation transformer station insulator contamination on-line monitoring system | |
| CN213689745U (en) | Intelligent acquisition monitoring facilities | |
| CN205015710U (en) | Electric power measurement and control device is synthesized to multiloop | |
| CN216529410U (en) | Intelligent fast-plug switch module | |
| CN2901667Y (en) | Modularized intelligent managing terminal for power load managing system | |
| CN205992030U (en) | A kind of distribution power automation terminal debugging apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |