CN218767199U - Medium-voltage indication loop fault detection device - Google Patents
Medium-voltage indication loop fault detection device Download PDFInfo
- Publication number
- CN218767199U CN218767199U CN202222245159.2U CN202222245159U CN218767199U CN 218767199 U CN218767199 U CN 218767199U CN 202222245159 U CN202222245159 U CN 202222245159U CN 218767199 U CN218767199 U CN 218767199U
- Authority
- CN
- China
- Prior art keywords
- indicating
- circuit
- detected
- lamp
- medium
- 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
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a medium voltage indication return circuit fault detection device, include: the measuring module is used for acquiring the voltage waveform of the medium-voltage indicating loop to be detected and the current waveform of the indicating lamp to be detected; the first storage module is connected with the measuring module and used for storing the voltage waveform and the current waveform acquired by the measuring module; the second storage module is connected with the comparison module and is used for storing the voltage waveform of the to-be-detected medium-voltage indicating circuit in normal operation and the current waveform of the to-be-detected indicating lamp in normal operation; and the comparison module is used for comparing the voltage waveform and the current waveform obtained by the measurement module with the voltage waveform and the current waveform under the normal operation of the medium voltage indicating loop to be detected and obtaining a comparison result. The utility model provides a well pressure indicating loop fault detection device monitors through the pilot lamp wave form to waiting to examine in the well pressure indicating loop, can the state of remote monitoring pilot lamp, need not the technical staff scene and looks over, has practiced thrift the human cost to the possibility of erroneous judgement has been reduced.
Description
Technical Field
The utility model belongs to the technical field of the medium voltage indicating circuit detects, concretely relates to medium voltage indicating circuit fault detection device.
Background
In medium voltage distribution systems with nominal voltages of 1kV to 35kV, a large number of medium voltage switchgear are widely used to provide functions such as breaking, protection, distribution, etc. The operating condition of equipment is judged through installing circuit breaker handcart operating position pilot lamp, circuit breaker handcart experimental position pilot lamp, circuit breaker separating brake pilot lamp, circuit breaker closing indicator lamp and energy storage pilot lamp on the medium-voltage cabinet secondary room panel at present among the medium-voltage distribution system, technical staff judges according to the display condition of pilot lamp, if on-the-spot switching operation that needs to carry out, and the pilot lamp damages this moment just, also can cause technical staff's puzzlement and erroneous judgement. And, the pilot circuit comprises corresponding position dry contact series indicator lamp, and when the position dry contact switches on, the indicator lamp lights, if the position dry contact takes place the adhesion phenomenon, does not break when needs break, and the indicator lamp still is in lighting, and this will lead to the indicator lamp mistake to light. Moreover, by adopting the method, the running state of the equipment in the medium-voltage distribution system is judged, the indicated display condition cannot be remotely checked, a technician needs to go to the site of the medium-voltage cabinet to check, and the problems of waste of human resources and low efficiency exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the pilot lamp state can't long-rangely look over in to above-mentioned current middling pressure distribution system to there is the misjudgment scheduling problem of puzzlement and misjudgement that the pilot lamp causes technical staff in the mistake, provides a middling pressure indicating loop fault detection device.
The utility model discloses a technical scheme be, provide a medium voltage indicating circuit fault detection device, include:
the measuring module is used for acquiring the voltage waveform of the medium voltage indicating circuit to be detected and the current waveform of the indicator lamp to be detected in the medium voltage indicating circuit to be detected;
the first storage module is connected with the measuring module and used for storing the voltage waveform and the current waveform acquired by the measuring module;
the second storage module is connected with the comparison module and used for storing the voltage waveform of the medium-voltage indicating circuit to be detected under normal operation and the current waveform of the indicating lamp to be detected under normal operation;
the comparison module is connected with the first storage module and the second storage module and is used for comparing the voltage waveform and the current waveform obtained by the measurement module with the voltage waveform and the current waveform of the medium-voltage indicating circuit to be detected under normal operation and the current waveform of the indicating lamp to be detected under normal operation to obtain a comparison result;
and the display module is connected with the comparison module and used for outputting and displaying the comparison result.
Further, the measuring module comprises a Hall current sensor, and the Hall current sensor is clamped on the medium-voltage indicating circuit to be detected and is connected with the indicating lamp to be detected in series.
Further, wait to examine the middling pressure and instruct the return circuit include the position dry contact with wait to examine the pilot lamp, the position dry contact with wait to examine the pilot lamp and establish ties, be in the off-state when the position dry contact, and wait to examine the voltage waveform of middling pressure and instruct the return circuit unchangeable, wait to examine the current waveform of pilot lamp and be 0 in being greater than first predetermineeing often time length, export this middling pressure and instruct the return circuit pilot lamp disconnection.
Further, when the position dry contact in the medium voltage indicating circuit to be detected is in a closed state, the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, and the current waveform of the medium voltage indicating circuit to be detected is not 0 and is basically unchanged within a time length which is larger than a first preset time, the medium voltage indicating circuit indicating lamp is output to be turned on by mistake.
Further, when the position dry contact in the medium voltage indicating loop to be detected is in a closed state, the voltage waveform of the medium voltage indicating loop to be detected is unchanged, and the current waveform of the medium voltage indicating loop to be detected is 0 and basically unchanged within a time length which is larger than a first preset frequent time, the medium voltage indicating loop is output to be in a fault open circuit.
Further, when the position dry contact in the medium voltage indicating circuit to be detected is in a closed state, the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, and the deviation between the current waveform of the medium voltage indicating circuit to be detected and the waveform in the comparison database exceeds a first threshold value, outputting the indicating lamp of the medium voltage indicating circuit to be poor in contact.
Furthermore, the medium-voltage indicating circuit to be detected comprises a circuit breaker handcart operation position indicating circuit, a circuit breaker handcart test position indicating circuit, a circuit breaker opening indicating circuit, a circuit breaker closing indicating circuit and an energy storage indicating circuit, the circuit breaker handcart operation position indication circuit, the circuit breaker handcart test position indication circuit, the circuit breaker opening indication circuit, the circuit breaker closing indication circuit and the energy storage indication circuit are connected in parallel.
Furthermore, the circuit breaker handcart operation position indication loop comprises a first position dry contact, a first Hall current sensor and a circuit breaker handcart operation position indication lamp, wherein the first position dry contact is connected with the first Hall current sensor and the circuit breaker handcart operation position indication lamp in series; the circuit breaker handcart test position indicating loop comprises a second position dry contact, a second Hall current sensor and a circuit breaker handcart test position indicating lamp, wherein the second position dry contact is connected with the second Hall current sensor and the circuit breaker handcart test position indicating lamp in series; the breaker opening indicating loop comprises a third position dry contact, a third Hall current sensor and a breaker opening indicating lamp, wherein the third position dry contact is connected with the third Hall current sensor and the breaker opening indicating lamp in series; the circuit breaker closing indication loop comprises a fourth position dry contact, a fourth Hall current sensor and a circuit breaker closing indication lamp, wherein the fourth position dry contact is connected with the fourth Hall current sensor and the circuit breaker closing indication lamp in series; the energy storage indicating circuit comprises a fifth position dry contact, a fifth current sensor and an energy storage indicating lamp, wherein the fifth position dry contact is connected with the fifth current sensor and the energy storage indicating lamp in series.
The utility model has the advantages that:
the utility model provides a pair of medium voltage indication return circuit fault detection device monitors through the pilot lamp wave form to waiting to examine in the medium voltage indication return circuit, can the state of remote monitoring pilot lamp, need not the technical staff scene and looks over, practiced thrift the human cost, improved monitoring efficiency to the possibility of erroneous judgement has been reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only a part of the embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a block diagram of a medium voltage indicating circuit fault detection apparatus provided by the present invention;
fig. 2 is the utility model provides a pair of medium voltage indication fault detection circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As the utility model provides an embodiment, as shown in fig. 1, the utility model provides a medium voltage indicating loop fault detection device for the running state of pilot lamp in control medium voltage indicating loop and the medium voltage indicating loop. The medium-voltage indicating loop fault detection device comprises a measuring module, a first storage module connected with the measuring module, a comparison module connected with the first storage module, a second storage module connected with the comparison module and a display module connected with the comparison module.
And the measuring module is used for acquiring the voltage waveform of the medium voltage indicating circuit to be detected and the current waveform of the indicator lamp to be detected in the medium voltage indicating circuit to be detected.
And the first storage module is used for storing the voltage waveform and the current waveform acquired by the measuring module.
And the second storage module is used for storing the voltage waveform of the medium-voltage indicating circuit to be detected under normal operation and the current waveform of the indicating lamp to be detected under normal operation.
And the comparison module is used for comparing the voltage waveform and the current waveform obtained by the measurement module with the voltage waveform under the normal operation of the medium-voltage indicating circuit to be detected and the current waveform under the normal operation of the indicating lamp to be detected, and obtaining a comparison result.
And the display module is used for outputting and displaying the comparison result.
Specifically, the voltage waveform of the medium-voltage indicating circuit to be detected and the current waveform of the indicating lamp to be detected are obtained through the measuring module, the running state of the indicating lamp in the medium-voltage indicating circuit can be judged remotely, and the possibility of misjudgment of the running state judgment of medium-voltage equipment by technicians on site according to the display condition of the indicating lamp is reduced.
Preferably, the measuring module includes hall current sensor, and when using this device, press from both sides hall current sensor on waiting to examine the middling pressure indicating circuit, with wait to examine the pilot lamp and establish ties for acquireing the voltage waveform of waiting to examine middling pressure indicating circuit and wait to examine the current waveform of pilot lamp.
Fig. 2 is the utility model provides a pair of medium voltage indication fault detection return circuit, as shown in fig. 2, in this embodiment, wait to examine that medium voltage indication return circuit includes circuit breaker handcart operation position indication return circuit, circuit breaker handcart experimental position indication return circuit, circuit breaker separating brake indication return circuit, circuit breaker combined floodgate indication return circuit and energy storage indication return circuit, circuit breaker handcart operation position indication return circuit, circuit breaker handcart experimental position indication return circuit, circuit breaker separating brake indication return circuit, circuit breaker combined floodgate indication return circuit and energy storage indication return circuit between parallelly connected each other.
Preferably, every is waited to examine voltage indication circuit and is included a position dry contact and the pilot lamp of establishing ties with it, specifically, circuit breaker handcart operation position indication circuit includes first position dry contact, first hall current sensor and circuit breaker handcart operation position pilot lamp, and first position dry contact, first hall current sensor and circuit breaker handcart operation position pilot lamp are established ties mutually, and first hall current sensor is used for acquireing the voltage waveform of circuit breaker handcart operation position indication circuit and the current waveform of circuit breaker handcart operation position pilot lamp.
The circuit breaker handcart test position indicating circuit comprises a second position dry contact, a second Hall current sensor and a circuit breaker handcart test position indicating lamp, wherein the second position dry contact, the second Hall current sensor and the circuit breaker handcart test position indicating lamp are connected in series, and the second Hall current sensor is used for acquiring the voltage waveform of the circuit breaker handcart test position indicating circuit and the current waveform of the circuit breaker handcart test position indicating lamp.
The circuit breaker opening indicating loop comprises a third position dry contact, a third Hall current sensor and a circuit breaker opening indicating lamp, wherein the third position dry contact, the third Hall current sensor and the circuit breaker opening indicating lamp are connected in series, and the third Hall current sensor is used for acquiring the voltage waveform of the circuit breaker opening indicating loop and the current waveform of the circuit breaker opening indicating lamp.
The circuit breaker closing indication circuit comprises a fourth position dry contact, a fourth Hall current sensor and a circuit breaker closing indication lamp, wherein the fourth position dry contact, the fourth Hall current sensor and the circuit breaker closing indication lamp are connected in series, and the fourth Hall current sensor is used for acquiring the voltage waveform of the circuit breaker closing indication circuit and the current waveform of the circuit breaker closing indication lamp.
The energy storage indicating circuit comprises a fifth position dry contact, a fifth Hall current sensor and an energy storage indicating lamp, wherein the fifth position dry contact, the fifth Hall current sensor and the energy storage indicating lamp are connected in series, and the fifth Hall current sensor is used for acquiring the voltage waveform of the energy storage indicating circuit and the current waveform of the energy storage indicating lamp.
As an embodiment of the utility model, be in the off-state when the position dry contact, and wait to examine the voltage waveform of middling pressure indicating circuit unchangeably, wait to examine the electric current waveform of pilot lamp and be 0 in being greater than 1 second's time length, this middling pressure indicating circuit pilot lamp disconnection of display module output.
When the position dry contact in the medium voltage indicating circuit to be detected is in a closed state, the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, and the current waveform of the medium voltage indicating circuit to be detected is not 0 and is basically unchanged within the time length of more than 1 second, the display module outputs that the indicator lamp of the medium voltage indicating circuit is mistakenly turned on, and the position dry contact of the medium voltage indicating circuit is adhered to be maintained.
When a position dry contact in the medium voltage indicating circuit to be detected is in a closed state, the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, and the current waveform of the lamp of the medium voltage indicating circuit to be detected is 0 and basically unchanged within the time span of more than 1 second, outputting the fault open circuit of the medium voltage indicating circuit, wherein the fault causes include but are not limited to damage of an indicating lamp in the medium voltage indicating circuit, loosening and falling of the position dry contact in the medium voltage indicating circuit and burning of the position dry contact in the medium voltage indicating circuit.
When the position dry contact in the medium voltage indicating circuit to be detected is in a closed state, the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, and the deviation between the current waveform of the medium voltage indicating circuit to be detected and the waveform in the comparison database exceeds 25%, the display module outputs the indicating lamp of the medium voltage indicating circuit with poor contact, and the arrangement of maintenance is recommended.
Therefore, the utility model provides a pair of middling pressure indicating loop fault detection device monitors through waiting to examine the pilot lamp wave form in the middling pressure indicating loop, can the state of remote monitoring pilot lamp, need not the technical staff scene and looks over, has practiced thrift the human cost, has improved monitoring efficiency to the possibility of erroneous judgement has been reduced.
The embodiment of the present invention has been described in detail, but it is only used as an example, and the present invention is not limited to the above-described specific implementation. For those skilled in the art, the equivalent modifications or substitutions to the present invention are within the scope of the present invention according to the idea of the present invention, and therefore, the equivalent changes and modifications, improvements, etc. made without departing from the spirit and principle scope of the present invention should be covered within the scope of the present invention. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (8)
1. A medium voltage indicating circuit fault detection device, comprising:
the measuring module is used for acquiring the voltage waveform of the medium voltage indicating circuit to be detected and the current waveform of the indicator lamp to be detected in the medium voltage indicating circuit to be detected;
the first storage module is connected with the measuring module and used for storing the voltage waveform and the current waveform acquired by the measuring module;
the second storage module is connected with the comparison module and used for storing the voltage waveform of the medium-voltage indicating circuit to be detected under normal operation and the current waveform of the indicating lamp to be detected under normal operation;
the comparison module is connected with the first storage module and the second storage module and is used for comparing the voltage waveform and the current waveform obtained by the measurement module with the voltage waveform and the current waveform of the medium-voltage indicating circuit to be detected under normal operation and the current waveform of the indicating lamp to be detected under normal operation to obtain a comparison result;
and the display module is connected with the comparison module and used for outputting and displaying the comparison result.
2. The device for detecting the fault of the medium-voltage indicating loop is characterized in that the measuring module comprises a Hall current sensor, and the Hall current sensor is clamped on the medium-voltage indicating loop to be detected and is connected with the indicating lamp to be detected in series.
3. The medium voltage indicating circuit fault detecting device according to claim 1, wherein the medium voltage indicating circuit to be detected comprises a position dry contact and the indicating lamp to be detected, the position dry contact is connected in series with the indicating lamp to be detected, when the position dry contact is in an open state and the voltage waveform of the medium voltage indicating circuit to be detected is unchanged, the current waveform of the indicating lamp to be detected is 0 within a time length greater than a first preset time, the indicating lamp of the medium voltage indicating circuit is output to be open.
4. The device of claim 3, wherein the device outputs the indication lamp of the medium voltage indicating loop to be turned on by mistake when the position dry contact in the indication loop to be detected is in a closed state, the voltage waveform of the indication loop to be detected is constant, and the current waveform of the indication lamp to be detected is not 0 and is basically constant within a time period greater than a first preset frequent time period.
5. The medium voltage indicating loop fault detecting device as claimed in claim 3, wherein when the position dry contact in the medium voltage indicating loop to be detected is in a closed state and the voltage waveform of the medium voltage indicating loop to be detected is constant, and the lamp current waveform of the medium voltage indicating loop to be detected is 0 and substantially constant for a time period greater than a first preset constant time, the medium voltage indicating loop fault detecting device outputs the medium voltage indicating loop fault open.
6. The medium voltage indicating loop fault detecting device as claimed in claim 3, wherein when the position dry contact in the medium voltage indicating loop to be detected is in a closed state, the voltage waveform of the medium voltage indicating loop to be detected is unchanged, and the deviation between the lamp current waveform of the medium voltage indicating loop to be detected and the waveform in the comparison database exceeds a first threshold value, the medium voltage indicating loop indicator lamp is output to be in poor contact.
7. The medium-voltage indicating circuit fault detection device according to claim 1, wherein the medium-voltage indicating circuit to be detected comprises a circuit breaker handcart operation position indicating circuit, a circuit breaker handcart test position indicating circuit, a circuit breaker opening indicating circuit, a circuit breaker closing indicating circuit and an energy storage indicating circuit, and the circuit breaker handcart operation position indicating circuit, the circuit breaker handcart test position indicating circuit, the circuit breaker opening indicating circuit, the circuit breaker closing indicating circuit and the energy storage indicating circuit are connected in parallel.
8. The medium voltage indicating circuit fault detecting device according to claim 7, wherein the circuit breaker handcart operation position indicating circuit comprises a first position dry contact, a first Hall current sensor and a circuit breaker handcart operation position indicating lamp, wherein the first position dry contact is connected in series with the first Hall current sensor and the circuit breaker handcart operation position indicating lamp; the circuit breaker handcart test position indicating circuit comprises a second position dry contact, a second Hall current sensor and a circuit breaker handcart test position indicating lamp, wherein the second position dry contact is connected with the second Hall current sensor and the circuit breaker handcart test position indicating lamp in series; the breaker opening indicating loop comprises a third position dry contact, a third Hall current sensor and a breaker opening indicating lamp, wherein the third position dry contact is connected with the third Hall current sensor and the breaker opening indicating lamp in series; the circuit breaker closing indication circuit comprises a fourth position dry contact, a fourth Hall current sensor and a circuit breaker closing indication lamp, wherein the fourth position dry contact is connected with the fourth Hall current sensor and the circuit breaker closing indication lamp in series; the energy storage indicating circuit comprises a fifth position dry contact, a fifth current sensor and an energy storage indicating lamp, wherein the fifth position dry contact is connected with the fifth current sensor and the energy storage indicating lamp in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222245159.2U CN218767199U (en) | 2022-08-25 | 2022-08-25 | Medium-voltage indication loop fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222245159.2U CN218767199U (en) | 2022-08-25 | 2022-08-25 | Medium-voltage indication loop fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218767199U true CN218767199U (en) | 2023-03-28 |
Family
ID=85692750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222245159.2U Active CN218767199U (en) | 2022-08-25 | 2022-08-25 | Medium-voltage indication loop fault detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218767199U (en) |
-
2022
- 2022-08-25 CN CN202222245159.2U patent/CN218767199U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100483143C (en) | Magnet coil break detection circuit | |
| CN101895155B (en) | Energy storage device with failure detection and automatic reconstruction function and reconstructing method | |
| CN101858958A (en) | Intelligent device and method for monitoring vacuum circuit breaker on line | |
| CN106483423B (en) | Fault searching method and device for breaker opening electric loop | |
| CN101825684A (en) | Intelligent vacuum circuit breaker online monitoring method | |
| RU2013116582A (en) | AUTOMATIC SWITCH WITH FAILURE INDICATOR AND SECONDARY POWER SUPPLY | |
| CN1135396C (en) | Improved circuit monitoring equipment | |
| CN107147204B (en) | A kind of DC power switching device and DC power supply | |
| CN104332961A (en) | Burning proof protection device for switch opening and closing coil | |
| CN204696056U (en) | A kind of circuit breaker of Novel belt circuit checker | |
| CN218767199U (en) | Medium-voltage indication loop fault detection device | |
| CN109655715A (en) | A kind of electric network fault recognition methods based on intelligent grid fault recognition equipment | |
| CN109708687A (en) | A kind of monitoring system of on-pole switch | |
| CN203543694U (en) | High voltage power distribution control device | |
| CN203513016U (en) | Power supply open-phase protection device of lift control cabinet | |
| CN101699305A (en) | Automatic circuit fault diagnosis and alarm device | |
| CN1026194C (en) | Multifunction insulating monitor | |
| CN114355250A (en) | Detection apparatus based on low-voltage electrical fault | |
| CN211603415U (en) | Transformer substation operation and maintenance cable insulation monitoring system | |
| CN204243738U (en) | Switch divide-shut brake coil burn-out-proof protective device | |
| CN113471939A (en) | Interlocking loop fault monitoring and alarming method in disconnecting link control loop | |
| CN206894975U (en) | Intelligent lighting system | |
| CN206990720U (en) | A kind of fault recognition circuit of transformer | |
| CN202094621U (en) | Intelligent monitoring type surge protector | |
| CN206223898U (en) | A kind of trouble shoot device of breaker open operation electric loop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |