CN212514942U - Cable temperature detection device with short-circuit protection function - Google Patents
Cable temperature detection device with short-circuit protection function Download PDFInfo
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- CN212514942U CN212514942U CN202020850537.8U CN202020850537U CN212514942U CN 212514942 U CN212514942 U CN 212514942U CN 202020850537 U CN202020850537 U CN 202020850537U CN 212514942 U CN212514942 U CN 212514942U
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Abstract
The utility model discloses a short-circuit protection function's cable temperature-detecting device, include: the detection device comprises a detection device body, a plurality of groups of detection assemblies, a plurality of groups of relays and a protection assembly, wherein a processor is arranged inside the detection device body, the detection assemblies are arranged on one side of the detection device body in a matching mode, the relays are uniformly distributed on the other side of the detection device body and are connected with an external circuit. The utility model discloses zero sequence current detector surpasss the certain multiple of setting value, and device signals makes the circuit breaker trip, when taking place short-circuit sensor and detecting the trouble, the device sends alarm signal, and the signal makes the circuit breaker trip when taking place the highest value of establishing of short-circuit fault, and when the cable overtemperature, temperature sensor sends alarm signal when detecting, and the signal makes the circuit breaker trip when the cable surpasss the highest temperature of setting, has guaranteed whole safety in utilization performance, cuts off the trouble source, avoids the accident to enlarge.
Description
Technical Field
The utility model relates to a cable check out test set field specifically is a short-circuit protection function's cable temperature-detecting device.
Background
The cable is a general name of articles such as optical cables, electric cables and the like, has a plurality of purposes, is mainly used for controlling multiple functions such as installation, connecting equipment, electric power transmission and the like, is a common and indispensable object in daily life, is generally used for zero-sequence current protection, fault (short circuit or grounding) indication and cable temperature detection in a medium-voltage switch cabinet at present, has the installation positions of a zero-sequence current transformer, a fault detection sensor and a temperature sensor at the same point, makes the installation complicated, and has only an alarm function and no protection function for faults (short circuit or grounding) and cable temperature.
The prior art has the following defects: at present, zero sequence current protection, fault (short circuit or grounding) indication and cable temperature detection are commonly adopted in a medium-voltage switch cabinet, the installation positions of a zero sequence current transformer, a fault detection sensor and a temperature sensor are at the same point, so that the installation is complicated, the fault (short circuit or grounding) and the cable temperature only have an alarm function and do not have a protection function, and the integral use safety is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a short-circuit protection function's cable temperature detection device to solve present and generally adopt zero sequence current protection, trouble (short circuit or ground connection) to instruct and cable temperature detection at medium voltage switchgear, its zero sequence current transformer, fault detection sensor and temperature sensor mounted position are in the same point, make the installation become complicated, and trouble (short circuit or ground connection) and cable temperature only have alarming function, do not have protect function scheduling problem.
In order to achieve the above object, the utility model provides a following technical scheme: a cable temperature detection device with short-circuit protection function includes: the detection device comprises a detection device body, a plurality of groups of detection assemblies, a plurality of groups of relays and a protection assembly, wherein a processor is arranged inside the detection device body, the detection assemblies are matched and installed on one side of the detection device body, the relays are uniformly distributed on the other side of the detection device body and are connected with an external circuit, and the protection assembly is installed inside the detection device body.
Preferably, the whole rectangular structure that is of detection device body, just detection device body outer wall spraying has fire retardant coating, has improved device fire behavior.
Preferably, a power supply is embedded in the detection device body and is connected with the processor through a lead.
Preferably, a plurality of groups the determine module includes ground sensor, short circuit sensor, temperature sensor, zero sequence current detector and connecting wire, ground sensor, short circuit sensor, temperature sensor, zero sequence current detector evenly distributed are in detection device body one side, just ground sensor, short circuit sensor, temperature sensor, zero sequence current detector and cable junction, the connecting wire both ends are connected with treater, ground sensor, short circuit sensor, temperature sensor and zero sequence current detector respectively.
Preferably, the locating plate is installed to detection device body one side, and a plurality of groups the relay passes through the support and is connected with the locating plate, and a plurality of groups the one end and the inside intercommunication of treater of relay utilize the locating plate to match the installation with a plurality of groups of relays, and the staff of being convenient for concentrates the installation and handles.
Preferably, the protection component includes three groups of wires, three groups of pilot lamps, and three groups the both ends of direction are connected with short circuit sensor, temperature sensor, zero sequence current detector and treater respectively, and three groups the pilot lamp matches and installs outside three groups of wires.
The utility model provides a short-circuit protection function's cable temperature detection device possesses following beneficial effect:
(1) the utility model discloses a be equipped with the protection subassembly, zero sequence current detector surpasses the certain multiple of setting value, device signals make the circuit breaker trip, when taking place short-circuit sensor and detecting the trouble, the device sends alarm signal, signals makes the circuit breaker trip when the highest value of establishing of short-circuit fault takes place, when the cable overtemperature, temperature sensor sends alarm signal when detecting, signals makes the circuit breaker trip when the cable surpasses the highest temperature of setting, the whole safety in utilization performance has been guaranteed, the fault source cuts off, avoid the accident to enlarge, short-circuit fault signal is received when the device, temperature signal sends, during residual current signal, through treater signals, make the relay action that corresponds separately, reach the mesh of protection.
(2) The utility model discloses a be equipped with a plurality of groups determine module, utilize short circuit sensor, temperature sensor, zero sequence current detector and then can be stable carry out omnidirectional detection to the cable and handle, guaranteed the stability of cable in the use, improved whole security performance, and through installing the locating plate at detection device body lateral wall, utilize the locating plate to match the installation with a plurality of groups relay, the staff of being convenient for carries out concentrated installation processing.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a flow chart of the protective assembly of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
In the figure: 1. a detection device body; 2. a detection component; 3. a relay; 4. a guard assembly; 5. a processor; 6. a power source; 7. a ground sensor; 8. a short circuit sensor; 9. a temperature sensor; 10. a zero sequence current detector; 11. a connecting wire; 12. positioning a plate; 13. a wire; 14. and an indicator light.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a cable temperature detection device with short-circuit protection function includes: the detection device comprises a detection device body 1, a plurality of groups of detection components 2, a plurality of groups of relays 3 and a protection component 4, wherein a processor 5 and a plurality of groups are arranged inside the detection device body 1, the detection components 2 are installed on one side of the detection device body in a matching mode, the relays 3 are evenly distributed on the other side of the detection device body 1 and are connected with external lines, and the protection component 4 is installed inside the detection device body 1.
Furthermore, the whole detection device body 1 is of a rectangular structure, and the fireproof coating is sprayed on the outer wall of the detection device body 1, so that the fireproof performance of the device is improved;
further, a power supply 6 is embedded in the detection device body 1, and the power supply 6 is connected with the processor 5 through a lead 13;
further, a plurality of sets of the detecting components 2 include a grounding sensor 7, a short-circuit sensor 8, a temperature sensor 9, a zero sequence current detector 10 and a connecting wire 11, the grounding sensor 7, the short-circuit sensor 8, the temperature sensor 9 and the zero sequence current detector 10 are uniformly distributed on one side of the detecting device body 1, the grounding sensor 7, the short-circuit sensor 8, the temperature sensor 9 and the zero sequence current detector 10 are connected with a cable, two ends of the connecting wire 11 are respectively connected with the processor 5, the grounding sensor 7, the short-circuit sensor 8, the temperature sensor 9 and the zero sequence current detector 10 can stably carry out omnibearing detection processing on the cable, the stability of the cable in the using process is ensured, the overall safety performance is improved, and a positioning plate 12 is installed on the side wall of the detecting device body 1, a plurality of groups of relays 3 are installed in a matching way by utilizing the positioning plate 12, so that the centralized installation processing is convenient for workers;
furthermore, a positioning plate 12 is installed on one side of the detection device body 1, a plurality of groups of relays 3 are connected with the positioning plate 12 through a support, and one ends of the plurality of groups of relays 3 are communicated with the inside of the processor 5, so that the overall installation stability is ensured;
further, the protection assembly 4 comprises three groups of leads 13 and three groups of indicator lamps 14, two ends of the three groups of guides are respectively connected with the short-circuit sensor 8, the temperature sensor 9, the zero-sequence current detector 10 and the processor 5, the three groups of indicator lamps 14 are installed outside the three groups of leads 13 in a matching way, the zero-sequence current detector 10 exceeds a certain multiple of a set value, the device sends out a signal to trip the circuit breaker, when the short-circuit sensor 8 detects a fault, the device sends out an alarm signal, when the short-circuit fault is the highest set value, the circuit breaker is tripped, when the cable is over-temperature and the temperature sensor 9 detects the cable, when the cable exceeds the highest set temperature, the signal is sent out to trip the circuit breaker, the integral use safety performance is ensured, the fault source is cut off, the accident expansion is avoided, when the device receives the short-circuit fault, when residual current signals are sent, the processor 5 sends out signals to enable the corresponding relays 3 to act, and the purpose of protection is achieved.
The working principle is as follows: when in use, the detection device body 1 is firstly positioned and fixed, the use stability of the whole device is ensured, the stability of the cable in the use process is ensured by arranging a plurality of groups of detection components 2, and utilizing the short-circuit sensor 8, the temperature sensor 9 and the zero sequence current detector 10 to further stably carry out omnibearing detection processing on the cable, the whole safety performance is improved, in addition, the positioning plate 12 is arranged on the side wall of the detection device body 1, a plurality of groups of relays 3 are matched and installed by utilizing the positioning plate 12, the centralized installation processing is convenient for workers, the whole use effect of the device is improved, the device combines the originally separated sensors and the residual current transformer, the electrical installation is simpler, meanwhile, through arranging the protection component 4, the zero sequence current detector 10 exceeds a certain multiple of a set value, the device sends a signal to trip the circuit breaker, when the short circuit sensor 8 detects a fault, the device sends out an alarm signal, when the short circuit fault occurs, the highest set value is sent out, the circuit breaker is tripped, when the cable is over-temperature, the temperature sensor 9 sends out the alarm signal when detecting, when the cable exceeds the highest set temperature, the circuit breaker is tripped, the whole use safety performance is ensured, the fault source is cut off, the accident expansion is avoided, when the device receives the short circuit fault signal, the temperature signal is sent out, and when the residual current signal is sent out, the processor 5 sends out a signal, so that the relays 3 corresponding to the device act, and the protection purpose is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A short-circuit protection function's cable temperature detection device which characterized in that includes: the detection device comprises a detection device body (1), a plurality of groups of detection assemblies (2), a plurality of groups of relays (3) and a protection assembly (4), wherein a processor (5) and a plurality of groups are arranged inside the detection device body (1), the detection assemblies (2) are matched and installed on one side of the detection device body (1), and the relays (3) are uniformly distributed on the other side of the detection device body (1) and are arranged in a plurality of groups, the relays (3) are connected with external lines, and the protection assembly (4) is installed inside the detection device body (1).
2. The short-circuit protection function cable temperature detection device according to claim 1, characterized in that: the detection device body (1) is integrally of a rectangular structure, and fireproof paint is sprayed on the outer wall of the detection device body (1).
3. The short-circuit protection function cable temperature detection device according to claim 1, characterized in that: the detection device is characterized in that a power supply (6) is embedded in the detection device body (1), and the power supply (6) is connected with the processor (5) through a lead (13).
4. The short-circuit protection function cable temperature detection device according to claim 1, characterized in that: a plurality of groups detection element (2) are including ground connection sensor (7), short circuit sensor (8), temperature sensor (9), zero sequence current detector (10) and connecting wire (11), ground connection sensor (7), short circuit sensor (8), temperature sensor (9), zero sequence current detector (10) evenly distributed is in detection device body (1) one side, just ground connection sensor (7), short circuit sensor (8), temperature sensor (9), zero sequence current detector (10) and cable junction, connecting wire (11) both ends are connected with treater (5), ground connection sensor (7), short circuit sensor (8), temperature sensor (9) and zero sequence current detector (10) respectively.
5. The short-circuit protection function cable temperature detection device according to claim 1, characterized in that: locating plate (12) are installed to detection device body (1) one side, and a plurality of groups relay (3) are connected with locating plate (12) through the support, and a plurality of groups the one end and the inside intercommunication of treater (5) of relay (3).
6. The short-circuit protection function cable temperature detection device according to claim 1, characterized in that: protection component (4) include three group wire (13), three group pilot lamps (14), three groups the both ends of direction are connected with short-circuit sensor (8), temperature sensor (9), zero sequence current detector (10) and treater (5) respectively, three groups pilot lamp (14) match and install in three group wire (13) outsidely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850537.8U CN212514942U (en) | 2020-05-20 | 2020-05-20 | Cable temperature detection device with short-circuit protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850537.8U CN212514942U (en) | 2020-05-20 | 2020-05-20 | Cable temperature detection device with short-circuit protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212514942U true CN212514942U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020850537.8U Expired - Fee Related CN212514942U (en) | 2020-05-20 | 2020-05-20 | Cable temperature detection device with short-circuit protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212514942U (en) |
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2020
- 2020-05-20 CN CN202020850537.8U patent/CN212514942U/en not_active Expired - Fee Related
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Granted publication date: 20210209 |