CN211579576U - Intelligent protection device for zero line breakage - Google Patents
Intelligent protection device for zero line breakage Download PDFInfo
- Publication number
- CN211579576U CN211579576U CN202020340257.2U CN202020340257U CN211579576U CN 211579576 U CN211579576 U CN 211579576U CN 202020340257 U CN202020340257 U CN 202020340257U CN 211579576 U CN211579576 U CN 211579576U
- Authority
- CN
- China
- Prior art keywords
- zero line
- line
- module
- protection device
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a low voltage protection equipment technical field, more specifically relates to a zero line intelligent protection device breaks, insert module, zero line ground wire combined floodgate module and power module including zero line detection module breaks, phase line insert the module and be connected with zero line detection module electricity, zero line detection module and zero line ground wire combined floodgate module electricity be connected, phase line insert the module and be connected with the power module electricity. After the zero line breaking condition occurs, the zero line of the line at the rear section of the breaking point is recovered in time, the normal circulation of the line is recovered, the normal power utilization of line equipment can be realized, and the economic loss caused by abnormal voltage is avoided.
Description
Technical Field
The utility model relates to a low pressure protective equipment technical field, more specifically relates to a zero line intelligent protection device breaks.
Background
Because the low-voltage distribution network overhead line is low in erection height, the low-voltage distribution network overhead line is easily damaged by external force of pressing down the wires when a vehicle collides and a tree is cut down, and the low-voltage distribution network three-phase four-wire system zero line is highest in possibility of being damaged by the external force because the wire is lowest in erection position, and the damage degree is usually the largest. After the zero line of the low-voltage distribution network is damaged by external force, the damage of user electrical equipment is easily caused.
Under the condition of unbalanced three-phase load, the zero line can have serious consequences once being broken, and the position of the zero line breaking point can be different to cause
Firstly, a single-phase load cannot form a loop, and the load cannot work normally;
secondly, a single-phase load is equivalent to be connected in series on a phase line, the phase voltage of the load is low when the load is large, and the phase voltage of the load is high when the load is small;
the zero line is not conducted with unbalanced current, and three voltages are unbalanced due to neutral point offset in order to maintain the vector sum of three-phase current equal to zero;
and fourthly, the three-phase voltage is distorted, the working characteristics of the electrical equipment are changed, and the electrical equipment cannot work due to too low voltage. The service life of the equipment is shortened due to overhigh voltage, and even the equipment is burnt out, so that economic loss is caused;
the electric equipment which is protected from zero will lose the protection function, and once the equipment leaks electricity, the electric shock will be caused to the human body. Even if no electricity leakage occurs, the shell of the equipment is electrified due to the fact that the zero line has dangerous voltage, and personal electric shock accidents can be caused.
After the zero line of the low-voltage distribution network is broken, the user electrical appliance works under the condition of abnormal voltage, electrical equipment is burnt out in a very short time, economic loss is caused, and operation and maintenance personnel or users can find that the line has problems only after the equipment fails, so that the power supply reliability and safety are reduced. At present, equipment which can recover the zero line of a line at the rear section of a line breaking point in time and recover the normal circulation of the line after the zero line breaking condition occurs and can realize the normal power utilization of line equipment is lacked in the market.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a zero line intelligent protection device breaks, after taking place the zero line condition, in time resume the zero line of broken string point back end circuit, resume the normal circulation of circuit, can realize the normal power consumption of line equipment, avoid voltage to cause economic loss unusually.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a zero line intelligent protection device breaks, includes zero line detection module, phase line access module, zero line ground wire combined floodgate module and power module, phase line access module be connected with zero line detection module electricity, zero line detection module and zero line ground wire combined floodgate module electricity be connected, phase line access module be connected with power module electricity.
In the device, a zero line breaking detection module is connected with a line lead, voltage value changes under the conditions of normal operation and zero line breaking are compared by detecting the voltage of the line lead, so that whether a zero line breaking exists is judged, when the zero line breaking detection module detects the zero line breaking, a switching-on signal is output to a zero line ground wire switching-on module, the zero line ground wire switching-on module performs switching-on to connect the line zero line and the device ground wire, after the zero line breaking condition occurs, the zero line of the line at the rear section of the breaking point is timely recovered, normal circulation of the line is recovered, normal power utilization of line equipment can be realized, and economic loss caused by abnormal voltage is avoided.
Furthermore, the zero line breaking detection module is a voltage detection module.
The system comprises a wireless transmitter and a remote receiving terminal, wherein the phase line access module is electrically connected with the wireless transmitter, and the wireless transmitter is in communication connection with the remote receiving terminal. The zero line breaking detection module is connected with a communication system, detection information is sent through a wireless transmitter in the communication system, a remote receiving terminal receives signals and sends line fault conditions to the remote receiving terminal, operation and maintenance personnel can check the line fault conditions through the remote receiving terminal, and the remote receiving terminal can be one or more of a computer, a tablet computer or a mobile phone.
Furthermore, the phase line access module comprises a detection line for connecting a low-voltage distribution network line and a power supply line for connecting a power supply module and a wireless transmitter. The phase line access module is a lead led out from a line, wherein one lead is led in and accessed to a low-voltage distribution network line so as to detect the line condition through the zero line breaking detection module, and the other lead is used as a power supply line of other modules.
Furthermore, the power module is a UPS uninterruptible power supply. The UPS can automatically select a non-fault phase as power output to supply power to the wireless transmitting module. In addition, the UPS uninterruptible power supply can also be charged by the power supply line.
The device further comprises a working display module, wherein the working display module is electrically connected with the phase line access module and the zero line and ground wire closing module respectively. The line fault condition can be displayed through the working display module, and a worker can visually know the fault condition of the line and correspondingly carry out first-aid repair.
Furthermore, the working display module comprises a first indicator light for indicating A, B, C phase power-on, a second indicator light for indicating normal operation of the zero line and a third indicator light for indicating grounding. When the line is normal, the first indicator lamp and the second indicator lamp are on, the third indicator lamp is not on, the zero line ground wire switching-on module is switched off, and the line zero line is disconnected with the device ground wire.
Further, the third indicator light is a flashing light. When a line is broken, the broken zero line detection module detects that the line is broken and the zero line ground wire closing module closes, the line zero line is connected with the ground wire of the device to form a transformer-phase line-load-zero line-0.4 kV broken zero line intelligent protection device-external grounding device-ground loop, the load of the non-broken line phase normally works, the first indicator lamp is turned on, the second indicator lamp is turned off, the third indicator lamp flickers to inform operation and maintenance personnel that the line is broken, the UPS automatically selects the non-fault phase as power output to supply power for the wireless transmitting module, and the wireless transmitting module sends out the fault power failure and power restoration conditions of the transmitting line.
Furthermore, the zero line and ground wire switching-on module is a low-voltage switch for connecting the zero line and the ground wire.
Compared with the prior art, the beneficial effects of the utility model are that: after the zero line breaking condition occurs, the zero line of the line at the rear section of the breaking point is recovered in time, the normal circulation of the line is recovered, the normal power utilization of line equipment can be realized, and the economic loss caused by abnormal voltage is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Examples
The utility model provides a zero line intelligent protection device breaks, includes zero line detection module 2, phase line access module 1, zero line ground wire combined floodgate module 3 and power module, and phase line access module 1 is connected with zero line detection module 2 electricity, and zero line detection module 2 is connected with zero line ground wire combined floodgate module 3 electricity, and phase line access module 1 is connected with power module electricity.
In the device, a zero line breaking detection module 2 is connected with a line lead, voltage value changes under the conditions of normal operation and zero line breaking are compared by detecting the voltage of the line lead, so that whether a zero line breaking exists is judged, when the zero line breaking detection module 2 detects the zero line breaking, a switching-on signal is output to a zero line ground wire switching-on module 3, the zero line ground wire switching-on module 3 acts to switch on, the zero line of the line is connected with a grounding device externally connected with a ground wire of the device, after the zero line breaking condition occurs, the zero line of a line at the rear section of a breaking point is timely recovered, normal circulation of the line is recovered, normal power utilization of line equipment can be realized, and economic loss caused by abnormal voltage is avoided.
In this embodiment, the zero line breaking detection module 2 is a voltage detection module.
In this embodiment, the system further comprises a communication system, the communication system comprises a wireless transmitter and a remote receiving terminal, the phase line access module 1 is electrically connected with the wireless transmitter, and the wireless transmitter is in communication connection with the remote receiving terminal. The zero line breakage detection module 2 is connected with a communication system, detection information is sent through a wireless transmitter in the communication system, a remote receiving terminal receives signals and sends line fault conditions to the remote receiving terminal, operation and maintenance personnel can check the line fault conditions through the remote receiving terminal, and the remote receiving terminal can be one or more of a computer, a tablet computer or a mobile phone.
In the present embodiment, the phase line access module 1 comprises a detection line for connecting to the low-voltage distribution network line and a power supply line for connecting to the power module and to the wireless transmitter. The phase line access module 1 is a lead led out from a line, wherein one lead is connected to a low-voltage distribution network line to detect the line condition through the zero line breaking detection module 2, and the other lead is used as a power supply line of other modules.
In this embodiment, the power module is a UPS uninterruptible power supply. The UPS automatically selects a non-fault phase as power output to supply power for the wireless transmitting module 5. In addition, the UPS uninterruptible power supply can also be charged by the power supply line.
In this embodiment, the device further includes a working display module 4, and the working display module 4 is electrically connected to the phase line access module 1 and the zero line/ground line closing module 3, respectively. The line fault condition can be displayed through the working display module 4, and the working personnel can visually know the fault condition of the line and correspondingly carry out first-aid repair.
In this embodiment, the operation display module 4 includes a first indicator light for indicating A, B, C phase energization, a second indicator light for indicating normal operation of the neutral wire, and a third indicator light for indicating grounding. When the line is normal, the first indicator lamp and the second indicator lamp are on, the third indicator lamp is not on, the zero line and ground wire switching-on module 3 is switched off, and the zero line and the device ground wire are disconnected.
In this embodiment, the third indicator light is a flashing light. When a line is broken, the broken zero line detection module 2 detects that the zero line is broken, the zero line ground wire closing module 3 closes, the zero line is connected with the ground wire of the device, a transformer-phase line-load-zero line-0.4 kV broken zero line intelligent protection device-external grounding device-ground loop is formed, the load of the non-broken line phase normally works, the first indicator lamp non-broken phase electrical appliance is on, the second indicator lamp is off, the third indicator lamp flickers to inform operation and maintenance personnel that the line is broken, the UPS uninterrupted power supply automatically selects the non-broken phase as power output to supply power for the wireless transmission module 5, and the wireless transmission module 5 sends out the fault power failure and power restoration conditions of the transmission line.
In this embodiment, the zero line and ground line closing module 3 is a low-voltage switch for connecting the zero line and the ground line.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a zero line intelligent protection device breaks, its characterized in that, includes zero line detection module (2), phase line access module (1), zero line ground wire combined floodgate module (3) and power module, phase line access module (1) be connected with zero line detection module (2) electricity, zero line detection module (2) be connected with zero line ground wire combined floodgate module (3) electricity, phase line access module (1) be connected with the power module electricity.
2. The intelligent zero line breaking protection device according to claim 1, wherein the zero line breaking detection module (2) is a voltage detection module.
3. The intelligent zero line breaking protection device according to claim 1, further comprising a communication system, wherein the communication system comprises a wireless transmitter and a remote receiving terminal, the phase line access module (1) is electrically connected with the wireless transmitter, and the wireless transmitter is in communication connection with the remote receiving terminal.
4. An intelligent zero line breaking protection device according to claim 3, characterized in that the phase line access module (1) comprises a detection line for connecting with a low-voltage distribution network line and a power supply line for connecting with a power supply module and a wireless transmitter.
5. The intelligent protection device for the zero line fault according to claim 4, wherein the power module is a UPS.
6. The intelligent protection device for the zero line breaking according to claim 5, wherein the remote receiving terminal is one or more of a mobile phone, a computer or a tablet.
7. The intelligent protection device for the zero line breaking according to claim 1, further comprising a working display module (4), wherein the working display module (4) is electrically connected with the phase line access module (1) and the zero line ground wire closing module (3) respectively.
8. The intelligent zero line protection device according to claim 7, wherein the working display module (4) comprises a first indicator light for indicating A, B, C phase power-on, a second indicator light for indicating normal working of the zero line, and a third indicator light for indicating grounding.
9. The intelligent protection device for the zero line breaking according to claim 8, wherein the third indicator light is a flashing light.
10. The intelligent zero line breaking protection device according to any one of claims 1-9, wherein the zero line and ground line closing module (3) is a low-voltage switch for connecting a zero line and a ground line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340257.2U CN211579576U (en) | 2020-03-17 | 2020-03-17 | Intelligent protection device for zero line breakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340257.2U CN211579576U (en) | 2020-03-17 | 2020-03-17 | Intelligent protection device for zero line breakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579576U true CN211579576U (en) | 2020-09-25 |
Family
ID=72526905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020340257.2U Active CN211579576U (en) | 2020-03-17 | 2020-03-17 | Intelligent protection device for zero line breakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579576U (en) |
-
2020
- 2020-03-17 CN CN202020340257.2U patent/CN211579576U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202586259U (en) | Minisize intelligent electric leakage comprehensive protection switch | |
| CN111313368A (en) | Intelligent protection device for zero line breakage | |
| CN211579576U (en) | Intelligent protection device for zero line breakage | |
| CN103278733A (en) | Cable ground connection remote monitoring method and remote monitoring system | |
| CN216699500U (en) | Intelligent safety power consumption protection device | |
| CN215896976U (en) | Take time delay type power distribution module | |
| CN109802410A (en) | A kind of zero line break protection device and method | |
| CN212540598U (en) | Intelligent safety power distribution device for grounding system | |
| CN107978495A (en) | A kind of protective device of breaker | |
| CN203734285U (en) | Zero line disconnection protective device of three-phase power grid | |
| CN113791282A (en) | Power utilization safety monitoring system and building thereof | |
| CN209313520U (en) | A kind of dual redundant ups power vehicle | |
| CN200996976Y (en) | Abnormal-voltage alarming indicater in grounding system | |
| CN100539344C (en) | When appearring in grounding system, can send abnormal voltage the device of the indication of reporting to the police | |
| CN211266582U (en) | UPS discharge protection device | |
| CN213878685U (en) | Visual power supply grounding device | |
| CN209232697U (en) | Electric blanket low-voltage protective switch structure | |
| CN210350859U (en) | Alarm device for monitoring circuit breaker | |
| CN215071610U (en) | Automatic isolation alarm device for low-voltage line fault of distribution transformer | |
| CN210985657U (en) | Combined surge protector with SCB backup protector | |
| CN219499594U (en) | Electric leakage monitoring and protecting system for street lamp post | |
| CN211351264U (en) | Water level triggering power-off device | |
| CN211017901U (en) | Multifunctional standby power access box and power distribution cabinet system | |
| CN212366815U (en) | Protection system for socket | |
| CN215641692U (en) | A testing arrangement that is used for ATS device inlet wire open-phase auto-switch-on test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |