CN210865191U - Special operation power cable synthesizes examination and banks up platform analogue means - Google Patents
Special operation power cable synthesizes examination and banks up platform analogue means Download PDFInfo
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- CN210865191U CN210865191U CN201921307866.1U CN201921307866U CN210865191U CN 210865191 U CN210865191 U CN 210865191U CN 201921307866 U CN201921307866 U CN 201921307866U CN 210865191 U CN210865191 U CN 210865191U
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Abstract
The utility model discloses a special operation power cable comprehensive examination platform simulation device, which comprises a shell, wherein a transformer is arranged in the shell, the primary side of the transformer is electrically connected with an external power supply, the secondary side of the transformer is electrically connected with one end of a power bus, the other end of the power bus is electrically connected with a low-voltage cable, a top cover of the simulation device is provided with low-voltage cable threading holes, high-voltage cable threading holes, a low-voltage cable nuclear phase indicator lamp and a control switch, the low-voltage cable nuclear phase indicator lamp and the control switch are electrically connected with the power bus, the inner side of the top cover of the simulation device is provided with a high-voltage cable, two ends of a three-phase cable of the low-voltage cable are respectively provided with two groups of low-voltage cable threading holes, the phase of one end of the low-voltage cable is constant, two ends of the high-voltage cable, and measuring the insulation resistance values of the high-voltage cable between phases and to the ground through a megger.
Description
Technical Field
The utility model relates to a special operation examination and cultivation analogue means, concretely relates to special operation power cable synthesizes examination and cultivation platform analogue means.
Background
The level requirements of special operations on practitioners are higher and higher, and the practitioners are required to not only master theoretical knowledge, but also have strong actual manual operation capability so as to ensure the safety of the practitioners during actual operations. At present, training and examinations aiming at power cable operation are both in the level of oral training and theoretical examinations, practitioners can only master theoretical knowledge and cannot comprehensively master actual operation skills, the situation of unskilled operation may exist during on-duty operation, great potential safety hazards exist, and great risks are brought to enterprises and operators.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a special type operation power cable synthesizes examination platform analogue means, can let the practitioner examine safe operation with voltmeter nuclear phase safe operation and power cable insulation shake in training and examination stage analog operation power cable line, improve practitioner's actual operating skill, the potential safety hazard that causes because of the operation is inexperienced when eliminating the operation in the future.
The utility model discloses a solve above-mentioned technical problem, proposed following technical scheme:
the first aspect, the embodiment of the utility model provides a special type operation power cable synthesizes examination and banks up platform analogue means includes the casing, be provided with the transformer in the casing, the transformer once inclines to be connected with external power supply electricity, the transformer secondary side is connected with power bus's one end electricity, power bus's the other end is connected with the low tension cable electricity, be provided with the low tension cable through wires hole on the analogue means top cap, the high tension cable through wires hole, low tension cable nuclear phase pilot lamp and control switch all are connected with power bus electricity, analogue means top cap inboard is provided with high tension cable.
Adopt above-mentioned implementation, external power supply passes through the transformer and supplies power for power bus after the vary voltage, realize nuclear phase operation after low tension cable is connected with power bus, it can supply low tension cable to wear out to be provided with the low tension cable through wires hole on the analogue means top cap, it can high tension cable wear out to set up the high tension cable through wires hole on the analogue means top cap, set up low tension cable nuclear phase pilot lamp and control switch on the analogue means top cap and all be connected with power bus electricity and can be used to indicating circuit whether normal.
Combine the first aspect, in the first possible implementation of the first aspect, the utility model discloses a transformer sets up to step-down transformer, be provided with power inlet wire protection circuit breaker between the side of transformer and the external power supply, the both ends of power inlet wire protection circuit breaker are connected with external power supply and transformer primary winding electricity respectively, adopt above-mentioned implementation, the transformer sets up to step-down transformer can will supply the safe voltage that training and examination used with external high voltage power supply, guarantee operating personnel's safety when training and examination, set up the safety that power inlet wire protection circuit breaker can ensure whole circuit, even break off take place for accident.
Combine the first possible implementation of first aspect, in the second possible implementation of first aspect, the utility model discloses a low tension cable through wires hole includes first low tension cable wire hole group and second low tension cable wire hole group, and first low tension cable wire hole group and second low tension cable wire hole group symmetry set up, adopt above-mentioned implementation, can conveniently carry out low tension cable's nuclear phase operation.
Combine the third possible implementation of first aspect, in the third possible implementation of first aspect, the utility model discloses a low tension cable's both ends all are provided with cable head and line nose, low tension cable's one end is provided with the looks color code, low tension cable is provided with the one end of looks color code and sets up in the outside of first low tension cable threading punch combination, low tension cable's the other end sets up in the outside of second low tension cable threading punch combination, low tension cable's intermediate part sets up in the analogue means shell, adopt above-mentioned implementation, low tension cable's middle part is connected with the power generating line electricity in the analogue means shell, low tension cable's both ends are worn out from first low tension cable threading punch combination and second low tension cable threading punch combination respectively, the both ends that available voltmeter connects low tension cable carry out the nuclear phase operation.
Combine the first possible implementation of first aspect, in the fourth possible implementation of first aspect, the utility model discloses a high tension cable through wires hole includes first high-pressure through wires hole and second high-pressure through wires hole, and the high tension cable both ends all are provided with the cable head and are fixed in inside the device shell, and the cable head at high tension cable both ends sets up respectively in the outside of first high-pressure through wires hole and second high-pressure through wires hole, adopts above-mentioned implementation, and the both ends of high tension cable set up and wear out from first high-pressure through wires hole and second high-pressure through wires hole respectively behind the cable head, and the insulation that available megohmmeter carried out high tension cable shakes and surveys.
Combine first aspect fifth possible implementation, the utility model discloses a high tension cable adopts three-core armoured cable, adopts above-mentioned implementation, and three-core armoured cable can simulate actual conditions better for the power cable commonly used in the actual operation.
Combine first possible implementation of the first aspect, in sixth possible implementation of the first aspect, the utility model discloses an external power supply is three phase current, and the transformer is three phase transformer, and power bus is three phase current generating line, and low tension cable, high tension cable are three phase cable, adopts above-mentioned implementation, because nuclear phase, three-core armoured cable's insulation are shaken and are surveyed and all need accomplish in three phase circuit, consequently can guarantee that nuclear phase simulation, three-core armoured cable's insulation are shaken and are surveyed the simulation and all accomplish in three phase circuit.
Combine the seventh possible implementation of first aspect, in the seventh possible implementation of first aspect, the utility model discloses a be provided with first instruction banks and second instruction banks on the three-phase power supply bus, first instruction banks and second instruction banks set up respectively in the pilot lamp hole on the device top cap, with set up the break-make and the nuclear phase of pilot lamp indicating circuit on the analogue means top cap whether correct.
With reference to the eighth possible implementation manner of the first aspect, in the eighth possible implementation manner of the first aspect, the first indicator light group of the present invention includes three indicator lights, two ends of each indicator light are respectively electrically connected to two phases of the three-phase power bus, and any phase line of the three-phase power bus is electrically connected to two indicator lights; the second indicating lamp group comprises three indicating lamps and three control switches, each indicating lamp is respectively connected with one control switch in series to form a sub-circuit, two ends of each sub-circuit are respectively electrically connected with two phases in the three-phase power supply bus, any phase circuit in the three-phase power supply bus is electrically connected with two sub-circuits, by adopting the implementation mode, the three indicating lamps of the first indicating lamp group can indicate whether the circuits are connected correctly, the control switches can be pressed when the nuclear phase is completed, and the correctness of the nuclear phase is checked through the second indicating lamp group.
Combine the ninth possible implementation of the first aspect, in the ninth possible implementation of the first aspect, the utility model discloses a be provided with control switch button in the control switch hole on the simulation device top cap, adopt above-mentioned implementation, can make the three pilot lamp of second pilot lamp group light through pressing shift knob.
Drawings
Fig. 1 is a frame diagram of a simulation device of a special operation power cable comprehensive examination platform provided by an embodiment of the utility model;
fig. 2 is a schematic diagram of a part of a transformer according to an embodiment of the present invention;
FIG. 3 is a schematic view of a portion of a power bus according to an embodiment of the present invention;
fig. 4 is a schematic view of a top cover of the device provided by the embodiment of the present invention.
1-device housing, 2-low voltage cable, 3-first indicator light group, 4-second indicator light group, 5-high voltage cable, 6-power supply incoming line protection breaker, 7-transformer, 8-three-phase power supply bus bar, 9-first low voltage cable threading hole group, 10-second low voltage cable threading hole group, 11-first low voltage cable threading hole, 12-second low voltage cable threading hole, 13-third low voltage cable threading hole, 14-fourth low voltage cable threading hole, 15-fifth low voltage cable threading hole, 16-sixth low voltage cable threading hole, 17-first high voltage cable threading hole, 18-second high voltage cable threading hole, 19-first indicator light, 20-second indicator light, 21-third indicator light, 22-fourth indicator light, 23-a fifth indicator light, 24-a sixth indicator light, 25-a first control switch, 26-a second control switch, 27-a third control switch.
Detailed Description
The present invention will be described with reference to the accompanying drawings and embodiments.
Fig. 1 is the embodiment of the utility model provides a frame diagram of a special type operation power cable synthesizes examination and banks up platform analogue means, this analogue means sets up device shell 1, is provided with transformer 7, three phase current generating line 8 and low tension cable 2 in device shell 1, is provided with low tension cable through wires hole, high tension cable through wires hole, low tension cable nuclear phase pilot lamp and control switch on this analogue means's top cap, is provided with high tension cable in the top cap inboard.
The schematic diagram of the top cover part of the embodiment is shown in fig. 2, a first low-voltage cable threading hole group 9 and a second low-voltage cable threading hole group 10 are arranged on the top cover and used for allowing a three-phase low-voltage cable to pass through, the first low-voltage cable threading hole group 9 comprises a first low-voltage cable threading hole 11, a second low-voltage cable threading hole 12 and a third low-voltage cable threading hole 13, the second low-voltage cable threading hole group 10 comprises a fourth low-voltage cable threading hole 14, a fifth low-voltage cable threading hole 15 and a sixth low-voltage cable threading hole 16, and the first low-voltage cable threading hole group 9 and the second low-voltage cable threading hole group 10 are symmetrically arranged and convenient to operate during a nuclear phase; the top cover is also provided with a first high-voltage cable threading hole 17 and a second high-voltage cable threading hole 18 for the three-phase high-voltage cable to pass through; the top cover is also provided with a first indicator lamp group 3 and a second indicator lamp group 4, the first indicator lamp group 3 comprises a first indicator lamp 19, a second indicator lamp 20 and a third indicator lamp 21, and the second indicator lamp group 4 comprises a fourth indicator lamp 22, a fifth indicator lamp 23 and a sixth indicator lamp 24; the top cover is also provided with a first control switch 25, a second control switch 26 and a third control switch 27.
Fig. 3 is a schematic diagram of a transformer portion of this embodiment, wherein a primary winding of a transformer 7 is electrically connected to an external 400V three-phase power supply, a power line incoming protection circuit breaker 6 is disposed between the transformer 7 and the external power supply for protecting the whole circuit, an input end of the power line incoming protection circuit breaker 6 is electrically connected to the external power supply, an output end of the power line incoming protection circuit breaker 6 is electrically connected to the primary winding of the transformer 7, the transformer 7 is a 480V/12V three-phase step-down transformer, and the external 400V power supply outputs a 12V safety voltage from a secondary side of the transformer 7 after being stepped down by the transformer 7 for use in simulation operation.
Fig. 4 is a schematic diagram of the power supply bus part of the present embodiment, A, B, C three-phase power supply bus 8 is electrically connected to A, B, C three-phase secondary windings of transformer 7, respectively, and the first indicator light group 3, the second indicator light group 4 and the three control switches on the top cover are electrically connected to the three-phase power supply bus 8, and the connection relationship is as follows:
in the first indicator light group, one end of a first indicator light 19 is electrically connected with the phase A power bus, and the other end is electrically connected with the phase B power bus; one end of the second indicator light 20 is electrically connected with the phase-B power bus, and the other end is electrically connected with the phase-C power bus; one end of the third indicator light 21 is electrically connected to the a-phase power bus, and the other end is electrically connected to the C-phase power bus.
In the second indicator light group, the fourth indicator light 22 is connected in series with the first control switch 25 to form a first sub-circuit, one end of the first sub-circuit is electrically connected with the phase-A power bus, and the other end of the first sub-circuit is electrically connected with the phase-B power bus; the fifth indicator lamp 23 is connected in series with the second control switch 26 to form a second sub-circuit, one end of the second sub-circuit is electrically connected with the B-phase power bus, and the other end of the second sub-circuit is electrically connected with the C-phase power bus; the sixth indicator light 24 and the third control switch 27 are connected in series to form a third sub-circuit, one end of the third sub-circuit is electrically connected with the a-phase power bus 7, and the other end of the third sub-circuit is electrically connected with the C-phase power bus.
In order to realize nuclear phase simulation operation, the low-voltage cable 2 for nuclear phase operation is arranged in the embodiment, the low-voltage cable 2 is a three-phase cable, cable heads and wire noses are arranged at two ends of the low-voltage cable, after yellow, green and red three-phase color codes are arranged on three cable heads at one end of the low-voltage cable 2, the three colors of yellow, green and red respectively represent the A phase, the B phase and the C phase, the A phase low-voltage cable line marked with the yellow color code penetrates out of a first low-voltage cable threading hole 11, the B phase low-voltage cable line marked with the green color code penetrates out of a second low-voltage cable threading hole 12, and the C phase low-voltage cable line marked with the red color code penetrates out of a third low; three cables at the other end of the low-voltage cable 2 penetrate out of three low-voltage cable threading holes of the second low-voltage cable threading hole group; the middle part of the low-voltage cable 2 is electrically connected with a three-phase power bus 8 in the shell of the simulation device, an A-phase low-voltage cable marked with a yellow color code is electrically connected with the A-phase power bus, a B-phase low-voltage cable marked with a green color code is electrically connected with the B-phase power bus, and a C-phase low-voltage cable marked with a red color code is electrically connected with the C-phase power bus.
In order to realize that the cable insulation shakes and surveys analog operation, this embodiment sets up and is used for the cable insulation to shake high tension cable 5 of surveying, and high tension cable 5 is three-phase armor three-core cable, and both ends all are provided with the cable head, and one end is worn out from first high tension cable through wires hole 17, and the other end is worn out from second high tension cable through wires hole 18, and the intermediate part of high tension cable 5 is fixed in the inboard of analogue means top cap.
In the embodiment, when the simulation device is used, firstly, the circuit is connected according to the connection mode, the external 400V power supply is switched on, the power supply incoming line protection circuit breaker 6 is closed, the transformer 7 reduces the voltage of the 400V external power supply to the safe voltage of 12V, and then the voltage is transmitted to the three-phase power supply bus 8 by the secondary winding of the transformer 7, at this time, whether the first indicator lamp 19, the second indicator lamp 20 and the third indicator lamp 21 of the first indicator lamp set 3 are all lighted or not is observed, simultaneously measuring the interphase voltage among the three-phase cable lines at the end marked with the color code of the low-voltage cable 2, if the first indicator lamp 19, the second indicator lamp 20 and the third indicator lamp 21 are all on and the interphase voltage among the three-phase cable lines at the end marked with the color code of the low-voltage cable 2 is all 12V, the circuit connection is normal, and the next nuclear phase simulation operation and the next cable insulation shaking simulation operation can be performed.
When nuclear phase simulation operation is carried out, the operation is carried out according to the following steps:
a first operator holds one meter pen of the nuclear phase voltmeter to touch an A-phase cable marked with a yellow color code of the low-voltage cable 2 penetrating through a first low-voltage cable threading hole 11, a second operator holds another meter pen of the nuclear phase voltmeter to touch three cables of the low-voltage cable 2 penetrating through a second low-voltage cable threading hole group 10 one by one, if an indicated value of the nuclear phase voltmeter is approximate to a linear voltage of 12V, two cables touched by the two meter pens of the nuclear phase voltmeter are not in the same phase, if the indicated value of the nuclear phase voltmeter is approximate to zero, the two cables touched by the two meter pens of the nuclear phase voltmeter are both in an A phase, so that the A-phase cable is determined from three-phase cables penetrating through a fourth low-voltage cable threading hole 14, a fifth low-voltage cable threading hole 15 and a sixth low-voltage cable threading hole 16, at the moment, a first control switch 25 is pressed down, so that a fourth indicator lamp 22 is lightened, and meanwhile, a yellow color code is arranged on the determined A-phase cable for marking.
A first operator holds one meter pen of the nuclear phase voltmeter to touch the green-color-coded B-phase cable wires of the low-voltage cables 3 penetrating through the second low-voltage cable threading hole 12, the second operator holds the other meter pen of the nuclear phase voltmeter to touch the three cable wires of the low-voltage cables 3 penetrating through the second low-voltage cable threading hole group 10 one by one, if the indicated value of the nuclear phase voltmeter is approximate to the line voltage 12V, the two cable wires touched by the two meter pens of the nuclear phase voltmeter are not the same phase, if the indicated value of the nuclear phase voltmeter is approximate to zero, the two cable wires touched by the two meter pens of the nuclear phase voltmeter are both B-phase, thereby determining the B-phase cable wires from the three-phase cable wires penetrating through the fourth low-voltage cable threading hole 14, the fifth low-voltage cable threading hole 15 and the sixth low-voltage cable threading hole 16, and pressing the first control switch 25 at the moment to enable the fourth indicator lamp 22 to be on, and meanwhile, a green color code is arranged on the determined B-phase cable for marking.
A first operator holds one meter pen of the nuclear phase voltmeter to touch a C-phase cable marked with a red color code of the low-voltage cable 2 penetrating through the third low-voltage cable threading hole 13, another meter pen of the nuclear phase voltmeter holds the other meter pen of the nuclear phase voltmeter to touch three cables of the low-voltage cable 2 penetrating through the second low-voltage cable threading hole group 10 one by one, if the indicated value of the nuclear phase voltmeter is approximate to a linear voltage of 12V, the two cables touched by the two meter pens of the nuclear phase voltmeter are not the same phase, if the indicated value of the nuclear phase voltmeter is approximate to zero, the two cables touched by the two meter pens of the nuclear phase voltmeter are both C-phase, so that the C-phase cable is determined from three-phase cables penetrating through the fourth low-voltage cable threading hole 14, the fifth low-voltage cable threading hole 15 and the sixth low-voltage cable threading hole 16, at the moment, the first control switch 25 is pressed down, so that the fourth indicator lamp 22 is lightened, and meanwhile, a yellow color code is arranged on the cable for determining the phase C for marking.
According to the operation, the three phases are checked one by one, 9 times, and finally A, B, C three phases at the end of the low-voltage cable 2 where no color scale is arranged are determined.
And when the high-voltage cable insulation shaking simulation operation is carried out, the three-phase high-voltage cable wire at one end or the other end of the high-voltage cable 5 which penetrates out of the first high-voltage cable threading hole 17 is respectively connected with a megohmmeter, so that the insulation resistance values of the phases and the ground are successively shaken, namely the insulation resistance value of the phase A relative to the phase B, the insulation resistance value of the phase A relative to the phase C, the insulation resistance value of the phase A relative to the ground, the insulation resistance value of the phase B relative to the phase A, the insulation resistance value of the phase B relative to the phase C, the insulation resistance value of the phase B relative to the ground, the insulation resistance value of the phase C relative to the phase A, the insulation resistance value of the phase C relative to the phase B and the insulation resistance value.
Known from the above embodiments, this embodiment provides a special type operation power cable synthesizes examination platform analogue means, can simulate the nuclear phase operation and the insulating operation of shaking of carrying out the three-phase cable to supply the practitioner to carry out simulation training or simulation investigation, improve its actual operating capability, improve the proficiency of operation, eliminate the potential safety hazard that exists in the work in the future.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and if it is replaced, the present invention is only combined with and described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a special type operation power cable synthesizes examination bank of academic or vocational study analogue means which characterized in that: the simulation device comprises a device shell, a transformer is arranged in the device shell, the primary side of the transformer is electrically connected with an external power supply, the secondary side of the transformer is electrically connected with one end of a power bus, the other end of the power bus is electrically connected with a low-voltage cable, a top cover of the simulation device is provided with a low-voltage cable threading hole, a high-voltage cable threading hole, a low-voltage cable nuclear phase indicator lamp and a control switch, the low-voltage cable nuclear phase indicator lamp and the control switch are electrically connected with the power bus, and a high-voltage cable is arranged on the inner side of the top cover of the simulation.
2. The special operation power cable comprehensive test bed simulation device as claimed in claim 1, wherein: the transformer is a step-down transformer, a power supply incoming line protection circuit breaker is arranged between the primary side of the transformer and an external power supply, and two ends of the power supply incoming line protection circuit breaker are respectively and electrically connected with the external power supply and a primary winding of the transformer.
3. The special operation power cable comprehensive test bed simulation device as claimed in claim 1, wherein: the low-voltage cable threading hole comprises a first low-voltage cable threading hole group and a second low-voltage cable threading hole group, and the first low-voltage cable threading hole group and the second low-voltage cable threading hole group are symmetrically arranged.
4. The special operation power cable comprehensive test bed simulation device as claimed in claim 1, wherein: the both ends of low tension cable all are provided with cable head and line nose, the one end of low tension cable is provided with the looks color code, the one end that the low tension cable was provided with the looks color code sets up in the outside of first low tension cable threading hole group, the other end of low tension cable sets up in the outside of second low tension cable threading hole group, the mid portion of low tension cable set up in the device shell.
5. The special operation power cable comprehensive test bed simulation device as claimed in claim 1, wherein: the high-voltage cable through wires hole includes first high-voltage through wires hole and second high-voltage through wires hole, the high-voltage cable both ends all are provided with the cable head and are fixed in inside the device shell, the cable head at high-voltage cable both ends sets up respectively in the outside in first high-voltage through wires hole and second high-voltage through wires hole.
6. The special operation power cable comprehensive test bed simulation device as claimed in claim 5, wherein: the high-voltage cable is a three-core armored high-voltage cable.
7. The special operation power cable comprehensive test bed simulation device as claimed in claim 1, wherein: the external power supply is a three-phase power supply, the transformer is a three-phase transformer, the power bus is a three-phase power bus, and the low-voltage cable and the high-voltage cable are three-phase cables.
8. The special operation power cable comprehensive test bed simulation device according to claim 7, characterized in that: the three-phase power supply bus is provided with a first indicator lamp group and a second indicator lamp group, and the first indicator lamp group and the second indicator lamp group are respectively arranged in indicator lamp holes in the top cover of the device.
9. The special operation power cable comprehensive test bed simulation device according to claim 8, characterized in that: the first indicator lamp group comprises three indicator lamps, two ends of each indicator lamp are respectively and electrically connected with two phases of a three-phase power supply bus, and any phase circuit in the three-phase power supply bus is electrically connected with the two indicator lamps; the second indicator lamp group comprises three indicator lamps and three control switches, each indicator lamp is connected with one control switch in series to form a sub-circuit, two ends of each sub-circuit are electrically connected with two phases of a three-phase power supply bus respectively, and any phase line in the three-phase power supply bus is electrically connected with the two sub-circuits.
10. The special operation power cable comprehensive test bed simulation device according to claim 9, characterized in that: and a control switch button is arranged in a control switch hole on the top cover of the simulation device.
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| CN201921307866.1U CN210865191U (en) | 2019-08-13 | 2019-08-13 | Special operation power cable synthesizes examination and banks up platform analogue means |
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| CN201921307866.1U CN210865191U (en) | 2019-08-13 | 2019-08-13 | Special operation power cable synthesizes examination and banks up platform analogue means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542077A (en) * | 2020-12-08 | 2021-03-23 | 广东电网有限责任公司 | Nuclear phase teaching box |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542077A (en) * | 2020-12-08 | 2021-03-23 | 广东电网有限责任公司 | Nuclear phase teaching box |
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