CN214150995U - Leakage protector exempts from to try to jump alarm device - Google Patents
Leakage protector exempts from to try to jump alarm device Download PDFInfo
- Publication number
- CN214150995U CN214150995U CN202022471296.9U CN202022471296U CN214150995U CN 214150995 U CN214150995 U CN 214150995U CN 202022471296 U CN202022471296 U CN 202022471296U CN 214150995 U CN214150995 U CN 214150995U
- Authority
- CN
- China
- Prior art keywords
- leakage
- leakage protector
- module
- detection module
- phase
- 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
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a trial jump-free alarm device of a leakage protector, which is used for the leakage protector and comprises a leakage detection module, a voltage detection module, a current detection module, a judgment module, a data processing module and a communication alarm module, wherein the leakage detection module, the voltage detection module, the current detection module and the judgment module are respectively connected with the data processing module, and the data processing module is connected with the communication alarm module; the leakage protector comprises a leakage detection module, a voltage detection module, a current detection module and a judgment module, wherein the leakage detection module is connected to a bus cable of the leakage protector, the voltage detection module is connected to a wiring terminal at a wire inlet end of the leakage protector, the current detection module is connected to a three-phase wire outlet end cable of the leakage protector, and the judgment module is connected to a wiring terminal at a wire outlet end of the leakage protector; the data processing module is preset with various relevant thresholds. The trial jump-free alarm device of the leakage protector can monitor the working state of the leakage protector in real time, timely judge abnormal conditions and send alarm information.
Description
Technical Field
The utility model belongs to the power equipment field especially relates to a leakage protector exempts from to try to jump alarm device.
Background
In order to detect whether the working state of the leakage protector is normal or not, the leakage protector must test for jumping once per month according to the provisions of 'operation maintenance management of residual current operated protector' and make a record. If the leakage protector is found to be abnormal, abnormal equipment needs to be maintained and replaced in time, the leakage protector is ensured to be in a normal working state, and the electricity utilization safety of residents is guaranteed. If the leakage protector is repaired for a long time, the leakage protection function is invalid, and the user has electric shock safety hidden trouble; the overcurrent protection function is invalid, so that the temperature of a line is raised, and potential safety hazards such as fire disasters exist; the capacitor can burst without the overvoltage protection function, and the hazards such as fire explosion and the like can be generated; the lack of the under-voltage protection function can cause low production efficiency and even burn out the motor. However, in actual life, because the field installation environment of the leakage protector is complex and distributed disorderly, a great amount of manpower and material resources are consumed for one-by-one trial jump, and the requirement of once trial jump every month is difficult to meet. In addition, the power failure in a short time can be caused during the trial jump, and the daily power utilization is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a trial jump alarm device is exempted from to earth-leakage protector can effectively solve the problem that current earth-leakage protector detects earth-leakage protector's operating condition operation inconvenience and can not real time monitoring earth-leakage protector operating condition through the mode of trial jump every month.
In order to solve the technical problem, the utility model adopts the following technical scheme: a kind of leakage protector avoids the alarm device of the trial jump, used in the leakage protector, including the detection module of electric leakage, voltage detection module, current detection module, judging module, data handling module and communication alarm module, the detection module of electric leakage, voltage detection module, current detection module and judging module are connected with data handling module separately, the data handling module is connected with communication alarm module; the leakage detection module is connected to a bus cable of the leakage protector and used for detecting a leakage value of a bus, the voltage detection module is connected to A, B, C three-phase and N-phase inlet terminal binding posts of the leakage protector and used for detecting phase voltage values of each phase at an inlet terminal of the leakage protector, the current detection module is connected to a A, B, C three-phase outlet terminal cable and used for detecting phase current values of each phase, and the judgment module is connected to A, B, C three-phase and N-phase outlet terminal binding posts and used for detecting phase voltage values of each phase at an outlet terminal of the leakage protector; the data processing module is provided with a leakage judgment threshold value, an overvoltage judgment threshold value, an undervoltage judgment threshold value, an overcurrent judgment threshold value and a three-phase unbalance judgment threshold value in advance.
Preferably, the leakage detection module is a zero sequence current transformer, and the leakage detection module is hung on a bus cable of the leakage protector. The zero sequence current transformer is adopted to detect the leakage value, the detection precision is high, and the zero sequence current transformer is easy to be hung and connected to a bus cable.
Preferably, the voltage detection module is a power taking clamp, and the voltage detection module is respectively clamped on three-phase and N-phase inlet wire terminal binding posts of the leakage protector A, B, C. The phase voltage value is detected by adopting the power taking clamp, the detection precision is high, and the disassembly and assembly operation is simple and convenient.
Preferably, the current detection module is a current transformer, and the current detection module is hung on a three-phase line cable at the outlet end A, B, C of the leakage protector. The current transformer is adopted to detect the phase current value, the detection precision is high, and the current transformer is easy to be hung and connected to A, B, C three-phase line cables.
Preferably, the judging module is a power-taking clamp, and the judging module is respectively clamped on three-phase and N-phase outlet terminal binding posts of the leakage protector A, B, C. The phase voltage value is detected by adopting the power taking clamp, the detection precision is high, and the disassembly and assembly operation is simple and convenient.
Preferably, the communication alarm module is connected with the master station through wireless communication. The remote information transmission can be realized, and the monitoring device is suitable for monitoring the leakage protector in unattended electrical equipment.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the leakage detection module is used for detecting a leakage value of a bus, the judgment module is used for detecting each phase voltage value of a leading-out terminal of the leakage protector and transmitting the leakage value and the voltage value to the data processing module, the data processing module compares the leakage value with a preset leakage judgment threshold value, and when the leakage value is larger than the leakage judgment threshold value, if each phase voltage value of the leading-out terminal of the leakage protector is 0, the working state of the leakage protector is normal and the leakage protector is tripped; if the voltage value of each phase of the corresponding outlet terminal of the leakage protector is not 0, the working state of the leakage protector is abnormal, the leakage protector does not trip, the leakage protection function fails, at the moment, the leakage data and the alarm information are transmitted to an operator through the communication alarm module, and the operator is informed to check, replace and maintain in time.
2. The method comprises the steps that a voltage detection module is arranged for detecting phase voltage values of each phase at a wire inlet end of the leakage protector, a judgment module is arranged for detecting phase voltage values of each phase at a wire outlet end of the leakage protector and transmitting the phase voltage values to a data processing module, the data processing module compares the phase voltage values of each phase at the wire inlet end with an overvoltage judgment threshold value and an undervoltage judgment threshold value which are preset, and when the phase voltage values of each phase at the wire inlet end are larger than the overvoltage judgment threshold value or smaller than the undervoltage judgment threshold value, if the phase voltage values of the corresponding wire outlet end of the leakage protector are 0, the working state of the leakage protector is normal and the leakage protector is tripped; if the voltage value of each phase of the outlet end of the corresponding leakage protector is not 0, the working state of the leakage protector is abnormal and is not tripped, the corresponding overvoltage protection function or undervoltage protection function is invalid, at the moment, the data and the alarm information of each phase of the outlet end are transmitted to an operator through the communication alarm module, and the operator is informed to check, replace and maintain in time.
3. The current detection module is arranged for detecting phase current values of each phase, the judgment module is arranged for detecting phase voltage values of each phase at the outlet end of the leakage protector, the current values and the voltage values are transmitted to the data processing module, the data processing module compares the current values with a preset overcurrent judgment threshold, and when the current values are larger than the overcurrent judgment threshold, if the phase voltage values of the outlet end of the corresponding leakage protector are 0, the working state of the leakage protector is normal and the leakage protector is tripped; if the voltage value of each phase at the outlet end of the corresponding leakage protector is not 0, the working state of the leakage protector is abnormal, the leakage protector does not trip, the overcurrent protection function fails, at the moment, the current value and the alarm information of each phase are transmitted to an operator through the communication alarm module, and the operator is informed to check, replace and maintain the leakage protector in time.
4. The data processing module can also judge whether three-phase balance of earth-leakage protector according to each phase current value that current detection module detected, when the unbalance degree is greater than the three-phase unbalance degree judgement threshold value that sets up in advance, will transmit three-phase current information and alarm information for operating personnel through communication module, in time inform operating personnel to look over and change the maintenance.
To sum up, the utility model discloses a this earth-leakage protector exempts from to try to jump alarm device, has saved the detection of trying to jump every month, has reduced the operation degree of difficulty, avoids influencing daily power consumption, simultaneously can real-time supervision earth-leakage protector's operating condition, and the earth-leakage protection function that probably appears to earth-leakage protector is inefficacy, overvoltage protection function, undervoltage protection function, overcurrent protection function inefficacy and unbalanced three phase scheduling problem in time make the judgement and report to the police.
Drawings
Fig. 1 is a schematic diagram of a leakage protector no-jump alarm device installed on a leakage protector according to an embodiment;
fig. 2 is a schematic diagram of a trial jump free alarm device of a leakage protector according to an embodiment.
The leakage protection device comprises a leakage protector 1, a leakage protection device 2, a trial jump-free alarm device 20, a leakage detection module 21, a voltage detection module 22, a current detection module 23, a judgment module 24, a data processing module 25, a communication alarm module 26, a wire inlet terminal, a wire outlet terminal 27 and a main station 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; may be directly connected or indirectly connected through an intermediate, unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example (b): as shown in fig. 1 and fig. 2, the trial jump-free alarm device for a leakage protector provided in this embodiment is used for the leakage protector 1, where the trial jump-free alarm device 2 for a leakage protector includes a leakage detection module 20, a voltage detection module 21, a current detection module 22, a judgment module 23, a data processing module 24 and a communication alarm module 25, where the leakage detection module 20, the voltage detection module 21, the current detection module 22 and the judgment module 23 are respectively connected to the data processing module 24, and the data processing module 24 is connected to the communication alarm module 25; the leakage detection module 20 is connected to a bus cable of the leakage protector 1 and used for detecting a leakage value of a bus, the voltage detection module 21 is connected to three-phase and N-phase incoming line terminal binding posts 26 of the leakage protector 1A, B, C and used for detecting phase voltage values of each incoming line terminal of the leakage protector 1, the current detection module 22 is connected to a 1A, B, C three-phase outgoing line terminal cable of the leakage protector 1 and used for detecting phase current values of each phase, and the judgment module 23 is connected to three-phase and N-phase outgoing line terminal binding posts 27 of the leakage protector 1A, B, C and used for detecting phase voltage values of each outgoing line terminal of the leakage protector 1; the data processing module 24 is preset with a leakage judgment threshold, an overvoltage judgment threshold, an undervoltage judgment threshold, an overcurrent judgment threshold, and a three-phase imbalance judgment threshold.
As shown in fig. 1, during installation, the leakage detecting module 20 may select a zero sequence current transformer, and hang the zero sequence current transformer on the bus cable of the leakage protector 1, and detect the leakage value by using the zero sequence current transformer, so that the detection precision is high, and the zero sequence current transformer is easy to hang and connect to the bus cable. The voltage detection module 21 and the judgment module 23 can both select power-taking clamps, the power-taking clamps serving as the voltage detection module 21 are respectively clamped on the three-phase incoming line terminal binding post 26 and the N-phase incoming line terminal binding post 26 of the leakage protector 1A, B, C, the power-taking clamps serving as the judgment module 23 are respectively clamped on the three-phase outgoing line terminal binding post 27 and the N-phase outgoing line terminal binding post 27 of the leakage protector 1A, B, C, the power-taking clamps are used for detecting phase voltage values, the detection precision is high, and meanwhile, the dismounting and mounting operation is simple and convenient. The current detection module 22 can select a current transformer, the current transformer is hung on the A, B, C three-phase line cable at the outlet end of the earth leakage protector 1, the current transformer is used for detecting the phase current value, the detection precision is high, and the current transformer is easy to be hung and connected to the A, B, C three-phase line cable.
Referring to fig. 2, in this embodiment, the communication alarm module 25 may also be connected to the master station 3 through wireless communication. Thus, remote information transmission can be realized, and the device is suitable for monitoring the leakage protector 1 in unattended electrical equipment.
In this embodiment, the leakage judgment threshold, the overvoltage judgment threshold, the undervoltage judgment threshold, the overcurrent judgment threshold, and the three-phase imbalance judgment threshold preset by the data processing module 24 are set according to the model of the overvoltage protector itself and the corresponding standard, and the following working principle will be described in detail.
The operation principle of the leakage protector trial jump-free alarm device 2 provided by the embodiment is described as follows:
and (3) monitoring and judging whether the leakage protection function of the leakage protector 1 fails or not: the leakage detection module 20 is configured to detect a leakage value of the bus, the determination module 23 is configured to detect a voltage value of each phase at the outlet of the leakage protector 1, and transmit the leakage value and the voltage value to the data processing module 24, and the data processing module 24 compares the leakage value with a preset leakage determination threshold. If the default set leakage tripping threshold value of the leakage protector 1 is 300mA, the preset leakage judgment threshold value of the device is also 300mA, when the leakage value is larger than 300mA, the preset leakage judgment threshold value is indicated to exceed the tripping threshold value of the leakage protector 1, if the voltage value of each phase corresponding to the outlet end of the leakage protector 1 is 0, the leakage protector 1 is tripped, the working state is normal, and the leakage protection function is realized; if the voltage value of each phase corresponding to the outlet end of the leakage protector 1 is not 0, it is indicated that the leakage protector 1 does not trip, the working state is abnormal, the leakage protection function fails, at this time, the leakage data and the leakage non-trip alarm information are transmitted to an operator through the communication alarm module 25, and the operator is informed to check, replace and maintain in time.
Monitoring and judging whether the overvoltage protection function and the undervoltage protection function of the leakage protector 1 are invalid or not: the voltage detection module 21 is arranged to detect each phase voltage value at the inlet end of the earth leakage protector 1, the judgment module 23 is arranged to detect each phase voltage value at the outlet end of the earth leakage protector 1 and transmit each voltage value to the data processing module 24, and the data processing module 24 compares each phase voltage value at the inlet end with a preset over-voltage judgment threshold value and under-voltage judgment threshold value. When the voltage exceeds 35% of the rated power supply voltage according to the regulation of GB 14048.2, the leakage protector 1 should act; when the voltage is lower than 70% of the rated power supply voltage, the leakage protector 1 should operate, in this embodiment, taking 220V as an example, when the voltage exceeds 297V or is lower than 154V, the leakage protector 1 should trip, the overvoltage judgment threshold preset by the device is 297V, and the undervoltage judgment threshold is 154V, when the voltage value of each phase at the incoming line end is greater than 297V or less than 154V, if the voltage value of each phase at the outgoing line end corresponding to the leakage protector 1 is 0, the leakage protector 1 is tripped, the working state is normal, and the leakage protector 1 has the corresponding overvoltage protection function or undervoltage protection function; if the voltage value of each phase of the outlet end of the corresponding leakage protector 1 is not 0, it is indicated that the leakage protector 1 is not tripped, the working state is abnormal, the corresponding overvoltage protection function or undervoltage protection function is failed, at this moment, the communication alarm module 25 transmits the voltage data of each phase of the inlet end and the overvoltage or undervoltage non-trip alarm information to the operator, and the operator is informed to check, replace and maintain in time.
Monitoring and judging whether the overcurrent protection function of the leakage protector 1 fails or not: the current detection module 22 is configured to detect each phase current value, the determination module 23 is configured to detect each phase voltage value at the outlet of the earth leakage protector 1, and transmit the current value and the voltage value to the data processing module 24, and the data processing module 24 compares the current value with a preset overcurrent determination threshold. According to the regulation of GB 14048.2, the current exceeds the rated current by 1.3 times, and the earth leakage protector 1 should trip after two hours. In this embodiment, taking 200A as an example, if the current value exceeds 260A, and the earth leakage protector 1 should trip after two hours, the preset overcurrent determination threshold value in this embodiment is 260A, and if the current value is greater than 260A, if the voltage value of each phase corresponding to the outlet terminal of the earth leakage protector 1 is 0, it indicates that the earth leakage protector 1 has tripped, and the working state is normal, and the earth leakage protector has an overcurrent protection function; if the voltage value of each phase at the outlet end of the corresponding leakage protector 1 is not 0, the leakage protector 1 is not tripped, the working state is abnormal, the overcurrent protection function fails, at the moment, the current value of each phase and the overcurrent non-trip alarm information are transmitted to an operator through the communication alarm module 25, and the operator is informed to check, replace and maintain the current value of each phase in time.
Monitoring and judging whether the leakage protector 1 is in three-phase balance: according to the specification of 13.4.4 article Q/GDW 1519-2014 Power distribution network operation and maintenance regulations: the three-phase load stress of the distribution transformer is balanced, and the unbalance degree is preferably as follows: maximum current-minimum current/maximum current x 100%. The neutral current limit level of the various winding wiring mode transformers should comply with DL/T572 related regulations. The unbalance of the distribution transformer should correspond to: yyn0 wiring is not more than 15%; dyn11 wiring was not more than 25%. The device that this embodiment provided predetermines three-phase unbalance degree judgement threshold value according to distribution transformer mode setting in advance, and data processing module 24 calculates three-phase unbalance degree according to above-mentioned calculation mode according to the each phase current value that current detection module 22 detected, when this three-phase unbalance degree is greater than three-phase unbalance degree judgement threshold value, will transmit three-phase current information and three-phase unbalance alarm information for operating personnel through communication module, in time inform operating personnel to look over and change the maintenance.
Therefore, the utility model discloses a this earth-leakage protector exempts from to try to jump alarm device 2, has saved the detection of trying to jump every month, has reduced the operation degree of difficulty, avoids influencing daily power consumption, simultaneously can real-time supervision earth-leakage protector 1's operating condition, and the earth-leakage protection function inefficacy, overvoltage protection function, undervoltage protection function, the overcurrent protection function inefficacy and the unbalanced three phase scheduling problem that probably appear to earth-leakage protector 1 in time make the judgement and report to the police.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (6)
1. The utility model provides a trial run alarm device is exempted from to earth-leakage protector for earth-leakage protector (1), its characterized in that: the intelligent power supply comprises an electric leakage detection module (20), a voltage detection module (21), a current detection module (22), a judgment module (23), a data processing module (24) and a communication alarm module (25), wherein the electric leakage detection module (20), the voltage detection module (21), the current detection module (22) and the judgment module (23) are respectively connected with the data processing module (24), and the data processing module (24) is connected with the communication alarm module (25); the leakage detection module (20) is connected to a bus cable of the leakage protector (1) and used for detecting a leakage value of a bus, the voltage detection module (21) is connected to three-phase and N-phase inlet terminal binding posts (26) of the leakage protector (1) A, B, C and used for detecting phase voltage values of each inlet terminal of the leakage protector (1), the current detection module (22) is connected to a A, B, C three-phase outlet terminal cable of the leakage protector (1) and used for detecting phase current values of each phase, and the judgment module (23) is connected to A, B, C three-phase and N-phase outlet terminal binding posts (27) of the leakage protector (1) and used for detecting phase voltage values of each outlet terminal of the leakage protector (1);
the data processing module (24) is provided with a leakage judgment threshold value, an overvoltage judgment threshold value, an undervoltage judgment threshold value, an overcurrent judgment threshold value and a three-phase unbalance judgment threshold value in advance.
2. A leakage protector jump-proof alarm device according to claim 1, wherein: the leakage detection module (20) is a zero sequence current transformer, and the leakage detection module (20) is hung on a bus cable of the leakage protector (1).
3. A leakage protector jump-proof alarm device according to claim 1, wherein: the voltage detection module (21) is a power taking clamp, and the voltage detection module (21) is respectively clamped on three-phase and N-phase inlet wire terminal binding posts (26) of the leakage protector (1) A, B, C.
4. A leakage protector jump-proof alarm device according to claim 1, wherein: the current detection module (22) is a current transformer, and the current detection module (22) is hung on a three-phase wire cable at an outlet end A, B, C of the earth leakage protector (1).
5. A leakage protector jump-proof alarm device according to claim 1, wherein: the judgment module (23) is an electricity taking clamp, and the judgment module (23) is respectively clamped on three-phase and N-phase outlet terminal binding posts (27) of the leakage protector (1) A, B, C.
6. A leakage protector jump-proof alarm device according to claim 1, wherein: the communication alarm module (25) is connected with the main station (3) through wireless communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471296.9U CN214150995U (en) | 2020-10-30 | 2020-10-30 | Leakage protector exempts from to try to jump alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471296.9U CN214150995U (en) | 2020-10-30 | 2020-10-30 | Leakage protector exempts from to try to jump alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214150995U true CN214150995U (en) | 2021-09-07 |
Family
ID=77561663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022471296.9U Active CN214150995U (en) | 2020-10-30 | 2020-10-30 | Leakage protector exempts from to try to jump alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214150995U (en) |
-
2020
- 2020-10-30 CN CN202022471296.9U patent/CN214150995U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201444191U (en) | Direct-current power supply online monitoring system | |
| CN211293018U (en) | Novel ammeter case is prevented fires device | |
| CN111579934A (en) | Method and device for realizing electric safety monitoring of external power network of base station and base station | |
| CN201563174U (en) | Video monitoring front-end control box | |
| CN214150995U (en) | Leakage protector exempts from to try to jump alarm device | |
| CN110927507A (en) | Safety detection device for four-pile charging pile | |
| CN216215916U (en) | Power consumption protector for three-phase balance immersion electric shock prevention | |
| CN202041612U (en) | Automatic locating device for earth faults of electricity transmission lines | |
| CN201557212U (en) | Network optical-fiber access cabinet | |
| CN204992785U (en) | Take low voltage network monitored control system of trouble early warning and diagnostic function | |
| CN211417017U (en) | Charging system of direct current charging pile | |
| CN201450318U (en) | Automatic false ground preventive low-voltage power distribution device | |
| CN114236246A (en) | System and method for detecting backup capability of FTU (fiber to the Unit) super capacitor | |
| CN113791282A (en) | Power utilization safety monitoring system and building thereof | |
| CN103928964B (en) | Transformer station's integrated power supply communication power device | |
| KR101473224B1 (en) | Power distribution board for preventing of black out and arc fault | |
| CN111313368A (en) | Intelligent protection device for zero line breakage | |
| KR101161157B1 (en) | Warning system for reactor of electricity substation | |
| CN205158000U (en) | Control system recloses | |
| CN201608515U (en) | Electric arc light protecting system for feeder cable in switch cabinet | |
| CN111907379A (en) | 10kV/27.5kV electrified railway auxiliary traction power supply | |
| CN204905865U (en) | Three -phase equilibrium high pressure takes accuse device | |
| CN209896774U (en) | Novel switch power supply cabinet transformation and old recycling system | |
| CN220367356U (en) | Device for detecting correctness of installation phase sequence of secondary fusion circuit breaker | |
| CN219980426U (en) | DC protection power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |