CN218825293U - Detection device applied to special transformer control extension module - Google Patents
Detection device applied to special transformer control extension module Download PDFInfo
- Publication number
- CN218825293U CN218825293U CN202223520291.6U CN202223520291U CN218825293U CN 218825293 U CN218825293 U CN 218825293U CN 202223520291 U CN202223520291 U CN 202223520291U CN 218825293 U CN218825293 U CN 218825293U
- Authority
- CN
- China
- Prior art keywords
- switching
- module
- relay
- coil
- signal detection
- 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
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model belongs to the technical field of intelligent distribution equipment power consumption information acquisition, concretely relates to detection device applied to special transformer control extension module, which comprises at least one path of detection circuit, wherein the detection circuit comprises a switching-off and switching-on signal detection module, a state indication module and a power supply module for supplying power and connecting the switching-off and switching-on signal detection module; the switching-on and switching-off signal detection module comprises a switching-off signal detection branch circuit with the same switching-on and switching-off state as that of a switching-off relay coil of the special variable control extension module and a switching-on signal detection branch circuit with the same switching-on and switching-off state as that of a switching-on relay coil of the special variable control extension module, and the state indication module comprises a switching-off indicator lamp which is bright when the switching-on signal detection branch circuit is switched on and a switching-on indicator lamp which is bright when the switching-on signal detection branch circuit is switched on. Namely the utility model discloses a detection device can reflect the divide-shut brake relay state of special variable control extension module to state indication module can reflect the divide-shut brake relay state of special variable control extension module through audio-visual demonstration.
Description
Technical Field
The utility model belongs to the technical field of intelligent distribution equipment power consumption information acquisition, concretely relates to be applied to detection device who specially becomes control extension module.
Background
The special transformer control extension module is a device which is matched with a special transformer terminal extension control channel in an electricity information acquisition system, and is provided with interfaces such as multi-path switching-off control output, switching-on control output and remote signaling input. The special transformer control extension module is a device which is matched with a type-III special transformer terminal to improve the load control capacity of the special transformer terminal, and in order to realize fine management of user loads, the user loads need to be classified and refined and accessed according to turns. According to the requirement of load turn-by-turn access, the field load of a user is required to be controlled to be accessed at least 4 turns, the control output of a type III terminal is 2-path output and cannot meet the requirement, in order to fully utilize the existing power utilization information acquisition system resources, the load control capability of a special transformer terminal is improved by depending on a mature load control framework of 'an acquisition system + a special transformer terminal + a load switch', a national network company publishes the technical specification of a special transformer control expansion module, and the technical scheme of the terminal and the control expansion module is adopted for the condition that the load control capability of the type III special transformer terminal is insufficient.
And the control capability is improved and upgraded, and the control capability comprises hardware and terminal software. In the aspect of hardware, a special transformer control extension module needs to be additionally installed, a single module can extend a 4-round control channel, and in the aspect of software, the functions of the terminal need to be modified and upgraded and the functions of the special transformer control extension module need to be developed and designed. In order to verify whether the functions of the expansion module are reasonably designed and whether the functions meet the requirements of national networks and companies of various provinces, software and hardware functions of the expansion module need to be tested and verified in a pilot test.
The software and hardware function test of the special transformer control extension module mainly verifies whether the control function can be correctly executed or not, no auxiliary tool can be used for the current test of the extension module, a tester needs to test the opening function, the closing function and the telecommand state acquisition function of the extension module one by one, for example, manual wiring is needed when the telecommand state is tested each time, and then a telecommand state displacement event is manufactured by manually disconnecting or connecting the wiring of a telecommand terminal, so that the test process is extremely complicated, the test efficiency is low, the test period of a single product is increased, and the working efficiency of the worker is reduced. And because the external status indicator lamp of the expansion module can correctly indicate the current working state only when meeting a certain condition, but the current test environment of the laboratory does not meet the condition, when testing the functions and performance of the product, a tester can only judge whether the expansion module correctly executes the opening and closing command by reading data such as the relay output state of the module through the master station, and the like, so the operation process is complicated, the data analysis is complex, and the test and analysis of the product are not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to detection device of special change control extension module for solve because of the outside not have audio-visual state indicating equipment of extension module, and the loaded down with trivial details problem of control function test flow to special change control extension module that leads to.
In order to solve the technical problem, the utility model provides a detection device applied to a special transformer control extension module, which comprises at least one path of detection circuit, wherein the detection circuit comprises an opening and closing signal detection module, a state indication module and a power supply module for supplying power and connecting the opening and closing signal detection module; the switching-off and switching-on signal detection module comprises a switching-off signal detection branch and a switching-on signal detection branch, one end of the switching-off signal detection branch is used for being connected with a switching-off control output terminal of the special transformer control extension module so as to be conducted when a coil of a switching-off relay of the special transformer control extension module is conducted, and one end of the switching-on signal detection branch is used for being connected with a switching-on control output terminal of the special transformer control extension module so as to be conducted when the coil of a switching-on relay of the special transformer control extension module is conducted; the state indicating module comprises a switching-off indicating lamp and a switching-on indicating lamp, the switching-off indicating lamp is connected with the other end of the switching-off signal detecting branch circuit and is turned on when the switching-off signal detecting branch circuit is switched on, and the switching-on indicating lamp is connected with the other end of the switching-on signal detecting branch circuit and is turned on when the switching-on signal detecting branch circuit is switched on.
The beneficial effects are as follows: the utility model discloses a set up the branch road of separating brake signal detection the same with the separating brake relay coil break-make state of special change control extension module (control the break-make of separating brake signal detection branch road promptly through separating brake relay coil break-make state) and the branch road of closing brake signal detection the same with the combined floodgate relay coil break-make state of special change control extension module (control the break-make of combined floodgate signal detection branch road promptly through combined floodgate relay coil break-make state), make the utility model discloses a detection device can reflect the divide-shut brake relay state of special change control extension module, and the divide-shut brake relay state based on special change control extension module is issued command control by the main website, consequently the utility model discloses a detection device can reflect whether special change control extension module correctly carries out the main website order (whether its control function can correctly carry out promptly), and the utility model provides a status indication module to the divide-shut brake relay state with coming the special change control extension module of special change control extension module through audio-visual demonstration reflection, and then avoided because the outside status indicator lamp of extension module need satisfy certain condition just can correctly indicate current operating condition, and the loaded down with trivial details problem of test flow that leads to.
Furthermore, the opening signal detection branch comprises an opening relay coil and a normally open contact of a contact switch, the control end of the opening relay coil is used for being connected with an opening control output terminal of the special transformer control expansion module, and the normally open contact of the contact switch is connected with an opening indicator lamp, so that when the coil of the special transformer control expansion module opening relay is switched on, the opening relay coil is switched on, the normally open contact of the contact switch is closed, and the opening indicator lamp is on; the switching-on signal detection branch circuit comprises a switching-on relay coil and a normally closed contact of a contact switch, the control end of the switching-on relay coil is used for being connected with a switching-on control output terminal of the special transformer control expansion module, and the normally closed contact of the contact switch is connected with a switching-on indicating lamp, so that the switching-on relay coil is switched on when the coil of the special transformer control expansion module switching-on relay is switched on, the normally closed contact of the contact switch is closed, and the switching-on indicating lamp is turned on.
Present separating brake control output terminal and combined floodgate control output terminal based on special change control extension module, the utility model discloses in through the mode that sets up two relay coils to connect separating brake control output terminal and combined floodgate control output terminal, come the internal state that reflects special change control extension module with the relay coil through among the detection device, and the setting need not to change the testing process who has just realized special change control extension module to special change control extension module's hardware interface.
Furthermore, the opening relay coil and the closing relay coil are part of a double-coil relay, the double-coil relay further comprises two groups of contact switches, and a normally open contact of the contact switch of the opening signal detection branch and a normally closed contact of the contact switch of the closing signal detection branch are a group of contact switches of the double-coil relay.
The utility model discloses an use a twin coil relay to simplify the design that needs two single coil relays, and then use components and parts quantity reduction on the hardware design of circuit, and then can the corresponding hardware usage space who saves detection module.
Furthermore, the common contact and the normally open contact of the other set of contact switches of the double-coil relay are used for being connected with a remote signaling input terminal of the special variable control extension module, so that when the switching-on and switching-off signal detection module detects a switching-on signal or a switching-off signal, a corresponding opening or closing signal is transmitted to a remote signaling unit of the special variable control extension module.
The double-coil relay can also use another group of wiring terminals to transmit the remote signaling state to the special variable control extension module, so that the problems that the test flow is abnormal and complicated and the test efficiency is low due to the fact that the remote signaling state is manually wired each time the remote signaling state is tested and then the remote signaling state is changed in a manual disconnection mode or a wiring mode of connecting the remote signaling terminals are adopted are solved.
Furthermore, the switching-off indicator lamp and the switching-on indicator lamp are LED lamps with two different colors.
The two different states of the special variable control expansion module are more intuitively distinguished by arranging the LED lamps with two different colors.
Furthermore, the state indication module further comprises a buzzer, and the buzzer is used for sounding when a coil of the special transformer control extension module opening relay is conducted.
Through setting up bee calling organ for two kinds of different states of special change control extension module are changeed and are distinguished.
Furthermore, one end of the buzzer is connected with the normally open contact of the contact switch, so that the buzzer is controlled to be switched on and off through the normally open contact of the contact switch.
Furthermore, a triode is further arranged between the buzzer and a normally open contact of the contact switch, the control end of the triode is connected with the normally open contact of the contact switch, and the conduction end of the triode is arranged between one end of the buzzer and the grounding end so as to control the conduction of the buzzer through the conduction of the triode.
Further, the number of the detection circuits is equal to the number of the control channels of the special variable control extension module.
The number of the detection circuits is the same as that of the control channels of the special variable control extension module, so that one detection device can detect all the channels of the special variable control extension module at the same time, the detection efficiency is improved, and the detection time is shortened.
Further, the power module includes a battery power supply branch and a USB power supply branch, and the battery power supply branch and the USB power supply branch are not turned on at the same time.
Through setting up two kinds of power supply modes of battery power supply branch road and USB power supply branch road, compare this and set up application scope wider than single power supply mode.
Drawings
Fig. 1 is a schematic diagram of a system architecture of a detection device according to the present invention;
fig. 2 is a schematic circuit diagram of the power module of the present invention;
fig. 3 is a schematic circuit diagram of the first path detection circuit of the present invention;
fig. 4 is a schematic circuit diagram of a second path detection circuit of the present invention;
fig. 5 is a schematic circuit diagram of a third path detection circuit of the present invention;
fig. 6 is a schematic circuit diagram of a fourth detection circuit according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
The embodiment of the detection device applied to the special variable control extension module comprises the following steps:
the detection device of the embodiment enables the detection device to reflect the switching-on and switching-off relay state of the special variable control extension module by setting the switching-off signal detection branch circuit which is the same as the switching-on and switching-off state of the switching-off relay coil of the special variable control extension module and the switching-on and switching-off signal detection branch circuit which is the same as the switching-on and switching-off state of the switching-on relay coil of the special variable control extension module, and the state indication module is arranged to visually display the current working state of the special variable control extension module, so that the problem that the control function test flow of the special variable control extension module is complicated due to the fact that no visual state indication device exists is avoided.
The detection device in this embodiment includes a power module, a switching-off and switching-on signal detection module, and a state indication module, and specifically, as shown in fig. 1, the switching-off and switching-on signal detection module includes a switching-off signal detection module, a switching-on and switching-on signal detection module, and further includes a remote signaling state detection module. The switching-off signal detection module and the switching-on signal detection module are used for detecting the current state of the special variable control extension module, transmitting the current state to the state indication module for visual display, and transmitting the current state to the remote signaling state detection module so as to transmit a signal to a remote signaling unit of the special variable control extension module through the module, so that the remote signaling unit generates a remote signaling deflection event by comparing the current remote signaling state with the previous remote signaling state. The power module is configured to provide a required working voltage for the opening signal detection module, the closing signal detection module, the remote signaling state detection module, and the state indication module, and specifically, as shown in fig. 2, the power module in this embodiment is composed of a power chip, a diode, a capacitor, a power switch, and other elements, and is responsible for providing a working power supply to the entire test apparatus. The power input mode of the power supply module is divided into two modes, one mode is that a USB interface provides a 5V working power supply, the working power supply is converted into two voltage specifications of 3.3V and 3V through elements such as a power supply chip, a diode, a capacitor and the like, the 3.3V provides stable working voltage for the power supply indicator, and the 3V provides working voltage for the opening signal detection module, the closing signal detection module, the remote signaling state detection module and the state indication module; the other is to provide 3.6V operating voltage from the battery.
The opening signal detection module mainly comprises a relay, is connected with an opening terminal of the extension module (namely an opening control output terminal of the special transformer control extension module) through a wiring terminal, and has the functions of detecting opening signals of the special transformer control extension module and forwarding signals. When the master station sends a switching-off command to the expansion module, a normally open contact of a switching-off relay of the expansion module is closed, a normally closed contact is opened, a switching-off signal detection module detects that a switching-off signal is generated, the signal is transmitted to a state indication module, and the state indication module indicates that the expansion module is in a switching-off state currently through an indicator lamp and a buzzer.
The switching-on signal detection module mainly comprises a relay, is connected with a switching-on terminal of the extension module (namely a switching-on control output terminal of the special transformer control extension module) through a wiring terminal, and has the functions of detecting switching-on signals of the special transformer control extension module and forwarding signals. When the master station sends a closing command to the expansion module, a normally open contact of a closing relay of the expansion module is closed, the closing signal detection module detects that a closing signal is generated and transmits the signal to the state indication module, and the state indication module indicates that the expansion module is in a closing state currently through the indicator lamp and the buzzer.
The remote signaling state detection module is upwards connected with a remote signaling terminal of the extension module (namely a remote signaling input terminal of the special variable control extension module) through a wiring terminal, the interior of the remote signaling state detection module is connected with the switching-off signal detection module and the switching-on signal detection module through a relay contact, when a master station sends a switching-off or switching-on command to the extension module, the remote signaling state detection contact generates a corresponding switching-on or switching-off signal, the detection device transmits the signal to a remote signaling unit of the extension module, the remote signaling unit generates a remote signaling deflection event by comparing the current remote signaling state with the previous remote signaling state, and the master station can acquire the current remote signaling state and deflection information of the extension module by reading a switching value object of the extension module.
The state indicating module consists of elements such as a brake separating indicating lamp, a brake closing indicating lamp and a buzzer and is used for indicating the current working state of the expansion module. The brake closing indicator lamp state is on and the brake opening indicator lamp state is off under the power-on default state of the detection device; when the master station sends a switching-off command to the expansion module, the state indication module detects that a switching-off signal is generated, the switching-on indication lamp is turned off, the switching-off indication lamp is turned on, and meanwhile, the buzzer makes a sound to indicate that the expansion module is currently in a switching-off state; when the state indicating module detects that a closing signal is generated, the closing indicating lamp is turned on, the opening indicating lamp is turned off, and meanwhile, the buzzer stops sounding to indicate that the expansion module is in a closing state at present.
A circuit diagram of a circuit of a detection circuit in the detection apparatus of this embodiment is shown in fig. 3, and includes a dual-coil relay, where a start coil (S coil) of the relay is disposed between a switching-off signal input end and a ground end, the switching-off signal input end is used to connect a switching-off normally-open end of a switching-off control output of a special transformer control extension module (in the diagram, OP-NO1 indicates that this end is used to connect an OP-NO1 end of the special transformer control extension module), and then when the special transformer control extension module executes a switching-off instruction of a master station, the S coil is turned on; a reset coil (R coil) of the relay is arranged between a closing signal input end and a grounding end, the closing signal input end is used for connecting a closing normally-opened end of the closing control output of the special transformer control expansion module (in the figure, CL-NO1 represents the CL-NO1 end used for connecting the special transformer control expansion module), and then when the special transformer control expansion module executes a closing instruction of the main station, the R coil is conducted; the double-coil relay comprises two groups of contact switches, a common contact of the group of contact switches is used for being connected with a VCC3V end of a power supply module, a normally closed contact is connected with one end of a switching-on indicating lamp (namely an anode of an LED 1), a cathode of the other end of the switching-on indicating lamp (namely the LED 1) is grounded after passing through a protective resistor R1, a normally open contact is connected with one end of a switching-off indicating lamp (namely an anode of an LED 2), the other end of the switching-off indicating lamp (namely a cathode of the LED 2) is grounded after passing through the protective resistor R2, and through the arrangement, when an S coil is switched on, the normally closed contact of the contact switches off and the normally open contact of the contact switches off, so that the switching-on detecting branch is switched on, and the switching-on indicating lamp is switched on, and the state indicating module in the embodiment further comprises a buzzer, as shown in figure 3, so that the triode Q1 is switched on when the S coil is switched on, and then the buzzer rings, namely, when the special-variable control extension module executes a switching-off instruction of the main station. The common contact of the other set of contact switches of the double-coil relay is used for being connected with a YX1+ end of a remote signaling input of the special transformer control expansion module, the normally open contact is used for being connected with a YX 1-end of the remote signaling input of the special transformer control expansion module, so that when the contact switches generate corresponding closing or opening signals, corresponding signals are transmitted to a remote signaling unit of the expansion module, the remote signaling unit generates a remote signaling deflection event by comparing the current remote signaling state with the previous remote signaling state, and the master station can acquire the current remote signaling state and deflection information of the expansion module by reading a switching value object of the expansion module.
In this embodiment, the number of the detection circuits of the apparatus of this embodiment is also set according to the number of the control channels of the existing dedicated control expansion module, and four control channels exist based on the dedicated control expansion module of the prior art, so that the detection apparatus is also set as four detection circuits in this embodiment, the remaining three detection circuits are respectively shown in fig. 4, 5, and 6, except that the externally connected control channels are different, the remaining three detection circuits are the same as those shown in fig. 3, and the effect brought by the circuit of fig. 3 can be achieved, and the setting and the effect of the circuit of fig. 3 are described in detail in the above embodiment, and the circuits shown in fig. 4, 5, and 6 are not described here. The number of the detection circuits is the same as the number of the control channels of the special variable control extension module, so that one detection device can detect all the channels of the special variable control extension module at the same time, the detection efficiency is improved, and the detection time is shortened.
The utility model discloses a set up the branch road with the same separating brake signal detection of separating brake relay coil break-make state of special change control extension module to and the branch road with the same closing brake signal detection of closing brake relay coil break-make state of special change control extension module, make the utility model discloses a detection device can reflect the separating brake relay state of special change control extension module, and command control is issued by the main website to separating brake relay state based on special change control extension module, consequently the utility model discloses a detection device can reflect whether the special change control extension module correctly carries out the main website order (whether its control function can correctly carry out promptly), and the utility model discloses in still set up the status indication module, with the separating brake relay state who reflects special change control extension module through audio-visual demonstration, and then avoided because the outside status indicator lamp of extension module need satisfy certain condition could correctly indicate current operating condition, and the loaded down with trivial details problem of test flow that leads to, this detection device has externally increased audio-visual status indication equipment, can instruct extension module current operating condition in real time, has avoided testing personnel operating software to acquire a series of data and analytical data, has accomplished visual equipment operating condition. The detection device can be used for testing the control function of the special transformer control expansion module, is compatible with the control function test of products such as a special transformer terminal, an energy controller, a loop state inspection instrument and the like, and has a wide application range.
Claims (10)
1. The detection device applied to the special transformer control extension module is characterized by comprising at least one path of detection circuit, wherein the detection circuit comprises a switching-on/off signal detection module, a state indication module and a power supply module for supplying power and connecting the switching-on/off signal detection module; the switching-off and switching-on signal detection module comprises a switching-off signal detection branch and a switching-on signal detection branch, one end of the switching-off signal detection branch is used for being connected with a switching-off control output terminal of the special transformer control extension module so as to be conducted when a coil of a switching-off relay of the special transformer control extension module is conducted, and one end of the switching-on signal detection branch is used for being connected with a switching-on control output terminal of the special transformer control extension module so as to be conducted when the coil of a switching-on relay of the special transformer control extension module is conducted; the state indicating module comprises a switching-off indicating lamp and a switching-on indicating lamp, the switching-off indicating lamp is connected with the other end of the switching-off signal detecting branch circuit and is turned on when the switching-off signal detecting branch circuit is switched on, and the switching-on indicating lamp is connected with the other end of the switching-on signal detecting branch circuit and is turned on when the switching-on signal detecting branch circuit is switched on.
2. The detection device applied to the special variable control expansion module according to claim 1, wherein the opening signal detection branch comprises an opening relay coil and a normally open contact of a contact switch, the control end of the opening relay coil is used for connecting an opening control output terminal of the special variable control expansion module, and the normally open contact of the contact switch is connected with an opening indicator lamp, so that when the coil of the special variable control expansion module opening relay is switched on, the opening relay coil is switched on, the normally open contact of the contact switch is switched off, and the opening indicator lamp is turned on; the switching-on signal detection branch circuit comprises a switching-on relay coil and a normally closed contact of a contact switch, the control end of the switching-on relay coil is used for being connected with a switching-on control output terminal of the special transformer control expansion module, and the normally closed contact of the contact switch is connected with a switching-on indicating lamp, so that the switching-on relay coil is switched on when the coil of the special transformer control expansion module switching-on relay is switched on, the normally closed contact of the contact switch is closed, and the switching-on indicating lamp is turned on.
3. The apparatus of claim 2, wherein the switching-off relay coil and the switching-on relay coil are part of a dual-coil relay, the dual-coil relay further includes two sets of contact switches, and the normally open contact of the contact switch of the switching-off signal detection branch and the normally closed contact of the contact switch of the switching-on signal detection branch are a set of contact switches of the dual-coil relay.
4. The detection device applied to the special variable control extension module according to claim 3, wherein the common contact and the normally open contact of the other set of contact switches of the dual-coil relay are used for connecting a remote signaling input terminal of the special variable control extension module, so that when the switching-on/off signal detection module detects a switching-on signal or a switching-off signal, a corresponding opening or closing signal is transmitted to a remote signaling unit of the special variable control extension module.
5. The detection device applied to the special variable control expansion module as claimed in claim 4, wherein the switching-off indicator light and the switching-on indicator light are LED lights with two different colors.
6. The detection device applied to the special variable control expansion module according to claim 5, wherein the status indication module further comprises a buzzer, and the buzzer is used for sounding when a coil of the special variable control expansion module tripping relay is conducted.
7. The detection device applied to the special variable control expansion module according to claim 6, wherein one end of the buzzer is connected with the normally open contact of the contact switch, so that the buzzer is controlled to be turned on or off through the normally open contact of the contact switch.
8. The detecting device applied to the special variable control extension module according to claim 7, wherein a triode is further disposed between the buzzer and the normally open contact of the contact switch, the control terminal of the triode is connected to the normally open contact of the contact switch, and the conducting terminal of the triode is disposed between one end of the buzzer and the ground terminal, so as to control the conduction of the buzzer through the conduction of the triode.
9. The apparatus according to claim 8, wherein the number of the detection circuits is equal to the number of the control channels of the proprietary control extension module.
10. The apparatus according to claim 9, wherein the power module includes a battery power supply branch and a USB power supply branch, and the battery power supply branch and the USB power supply branch are not conducted at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520291.6U CN218825293U (en) | 2022-12-28 | 2022-12-28 | Detection device applied to special transformer control extension module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520291.6U CN218825293U (en) | 2022-12-28 | 2022-12-28 | Detection device applied to special transformer control extension module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218825293U true CN218825293U (en) | 2023-04-07 |
Family
ID=87260273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223520291.6U Active CN218825293U (en) | 2022-12-28 | 2022-12-28 | Detection device applied to special transformer control extension module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218825293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626483A (en) * | 2023-07-26 | 2023-08-22 | 天津宜科自动化股份有限公司 | Service cycle statistics system of circuit breaker |
-
2022
- 2022-12-28 CN CN202223520291.6U patent/CN218825293U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626483A (en) * | 2023-07-26 | 2023-08-22 | 天津宜科自动化股份有限公司 | Service cycle statistics system of circuit breaker |
| CN116626483B (en) * | 2023-07-26 | 2023-11-14 | 天津宜科自动化股份有限公司 | Service cycle statistics system of circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218825293U (en) | Detection device applied to special transformer control extension module | |
| CN101750555A (en) | Spare automatic switching comprehensive tester | |
| CN201319052Y (en) | Auto-switch-on integrated tester | |
| CN110988524B (en) | Automatic function test device of full-automatic recloser formula feeder | |
| CN204065268U (en) | A kind of backup auto-activating device detection module for laboratory | |
| CN201230204Y (en) | Logic test device for microcomputer type protection monitoring module in power supply and distribution system | |
| CN102856137A (en) | Low-voltage intelligent double-power-source change-over switch | |
| CN210534276U (en) | Feeder terminal test interface equipment and system | |
| CN202816840U (en) | Low voltage intelligent double power source change-over switch | |
| CN208432669U (en) | A kind of test macro | |
| CN116312300A (en) | Unit board level fault monitoring system and method for LED display screen | |
| CN109164379A (en) | A kind of relay multidiameter option switch circuit and test macro with interlock function | |
| CN216285598U (en) | Relay contact performance testing device | |
| CN210272192U (en) | Intelligent contactor | |
| CN111781552A (en) | Relay parallel device, and automatic current transformer range conversion device and method | |
| CN210535133U (en) | Electricity-consumption troubleshooting demonstration device | |
| CN207819186U (en) | A kind of intelligent substation Intelligent control cabinet and Secondary Circuit of Potential Transformer | |
| CN111707891A (en) | Secondary circuit monitor | |
| CN202616875U (en) | Equipment for monitoring network connection state of smart power grid | |
| CN212301775U (en) | Contactor fault intelligent diagnosis device | |
| CN218974443U (en) | Current detection module | |
| CN205229356U (en) | Intelligence capacitor switching test device | |
| CN205281253U (en) | Detection apparatus for wind generating set controller | |
| CN219936057U (en) | Test equipment and system for battery management unit circuit board | |
| CN114069427B (en) | High-voltage switch system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |