CN209879929U - Low-voltage system troubleshooting training device - Google Patents
Low-voltage system troubleshooting training device Download PDFInfo
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- CN209879929U CN209879929U CN201920385252.9U CN201920385252U CN209879929U CN 209879929 U CN209879929 U CN 209879929U CN 201920385252 U CN201920385252 U CN 201920385252U CN 209879929 U CN209879929 U CN 209879929U
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- energy meter
- air switch
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- 238000012549 training Methods 0.000 title claims abstract description 44
- 238000013024 troubleshooting Methods 0.000 title claims abstract description 29
- 230000009467 reduction Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Keying Circuit Devices (AREA)
Abstract
A low-voltage system troubleshooting training device relates to the technical field of electrician training devices. The incoming line enters from the primary side of the transformer, enters the three-phase air switch after being subjected to voltage reduction, and respectively enters the three-phase electric energy meter, the single-phase electric energy meter and the single-phase electric energy meter from the outgoing line of the three-phase air switch, and the three electric energy meters are respectively connected with the three-phase air switch, the single-phase air switch and the single-phase disconnecting link; three-point open-circuit faults are respectively arranged at the main incoming air switch and the three-phase electric energy meter, and one-point open-circuit faults are respectively arranged at the single-phase electric energy meter, the single-phase air switch and the single-phase disconnecting link. The utility model discloses an electrical equipment such as electric energy meter and switch carries out reasonable transformation and design fault point to simulation low voltage circuit trouble and low voltage electrical equipment trouble, the real standard of investigation of the training personnel of being convenient for. Through this real device of instructing of low pressure system troubleshooting, can show the ability that improves training personnel and solve the problem.
Description
Technical Field
The utility model relates to a real technical field of device of instructing of electrician specifically is to relate to a real device of instructing of low pressure system troubleshooting.
Background
Along with the increasing of living standard of people, the application of electricity in daily life of people is more and more important, but along with the increase of power consumption demand, the problems of unstable voltage, overcurrent, overload, short circuit and the like of electricity utilization also come along, and the common target of each electric power worker is to recover power supply for users as soon as possible and reduce power failure time. To quickly eliminate faults of low-voltage lines and low-voltage electrical equipment, not only theoretical knowledge is needed, but also more experience and more practical training are accumulated at ordinary times, and obviously, training on the low-voltage lines which actually work is not practical, and a low-voltage line fault troubleshooting practical training device is needed to carry out practical training at ordinary times for workers so as to accumulate experience and improve the capability of manually troubleshooting.
At present, a plurality of low-voltage system troubleshooting practical training devices are arranged on the market, but no device can simulate the internal fault of electrical equipment, and the main reason is that most electrical equipment is assembled tightly and is not easy to open. Even if the device is opened, the device is also opened by adopting a violent means, the device is also seriously damaged, and the practical training utilization value is not available. In fact, in a low-voltage distribution system, not only the line but also the low-voltage electrical equipment are frequently in failure. The fault of the low-voltage electrical equipment is avoided and is not reflected in the practical training device, so that personnel using the practical training equipment for training tend to lack the training for checking the damage of the low-voltage electrical equipment. In actual practice, such problems are encountered and are less capable of solving the problem than those trained.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a real device of instructing of low pressure system troubleshooting can be used for simulating real the instructing of troubleshooting of low pressure circuit trouble and low pressure electrical equipment trouble.
In order to realize the above purpose, the utility model discloses the technical scheme who adopts is: a low-voltage system troubleshooting training device is used for troubleshooting training on low-voltage line faults and low-voltage electrical equipment faults on a low-voltage power distribution system, incoming wires enter from the primary side of a transformer and enter a three-phase air switch QF1 after being subjected to voltage reduction, outgoing wires from the three-phase air switch QF1 respectively enter a three-phase electric energy meter KWH1, a single-phase electric energy meter KWH2 and a single-phase electric energy meter KWH3, the three electric energy meters are respectively connected to a three-phase air switch QF2, a single-phase air switch QF3 and a single-phase knife switch QS, and the three-phase electric energy meters and the two single-phase electric energy meters are respectively used for simulating a three-phase; the main incoming line air switch QF1 is provided with a three-point open-circuit fault, the three-phase electric energy meter KWH1 is provided with a three-point open-circuit fault, the single-phase electric energy meter KWH2 is provided with a one-point open-circuit fault, the single-phase electric energy meter KWH3 is provided with a one-point open-circuit fault, the three-phase air switch QF2 is provided with a three-point open-circuit fault, the single-phase air switch QF3 is provided with a one-point open-circuit fault, and the single-phase knife switch QS is provided with a.
The inlet wire and the outlet terminal inside the air switch with the fault point are connected through two wiring ends of a normally closed contact of an intermediate relay, 3 fault point open circuits are formed in the three-phase air switch through 3 intermediate relays, and 1 fault point open circuit is formed in the single-phase air switch through 1 intermediate relay.
The upper copper sheet and the lower copper sheet in the disconnecting link with the fault points are respectively welded on two wiring ends of a normally closed contact of the intermediate relay, and 1 fault point open circuit is formed in the disconnecting link through 1 intermediate relay.
The inlet wire and the outlet terminal of the electric energy meter with the fault point are connected through two wiring ends of a normally closed contact of an intermediate relay, 3 fault point open circuits are formed in the three-phase electric energy meter through 3 intermediate relays, and 1 fault point open circuit is formed in the single-phase electric energy meter through 1 intermediate relay.
And the electric energy display and electric energy meter parameter display part as the upper component of the electric energy meter is replaced by a 3D printing model.
When the practical training device is electrified to prepare for practical training, all fault points to be set are in a normal state, and if the fault points are required to be set on the air switch, the disconnecting link and the electric energy meter, only the intermediate relay at the corresponding position is required to act.
The action of each intermediate relay to form a fault point is realized through a button, a single chip microcomputer or PLC control.
The utility model discloses a real device of instructing of low pressure system troubleshooting, its beneficial effect shows:
the utility model discloses an electrical equipment such as electric energy meter and switch carries out reasonable transformation and design fault point to simulation low voltage circuit trouble and low voltage electrical equipment trouble, the real standard of investigation of the training personnel of being convenient for. Through this real device of instructing of low pressure system troubleshooting, can show the ability that improves training personnel and solve the problem. When the low-voltage system troubleshooting practical training device is electrified to prepare practical training, all fault points to be set are in a normal state, and if the fault points need to be set, only the intermediate relay connected to the fault points needs to act. The action of these intermediate relays can be controlled by using a button, a singlechip and a PLC. Meanwhile, as a practical training device for teaching, the upper computer can be used for controlling by using software to realize additional functions of question bank setting, automatic scoring, examination time setting and the like.
Drawings
The following drawings are used for further detailing the low-voltage system troubleshooting training device.
Figure 1 simulates a low voltage power distribution system.
Fig. 2 is the utility model discloses a low pressure system troubleshooting device of instructing's schematic diagram.
Fig. 3 is a control diagram of the electric energy meters KWH1, KWH2 and KWH3, the air switches QF2 and QF3, and the knife switch QS.
Detailed Description
Fig. 1 simulates a relatively simple low-voltage distribution system, and the utility model discloses a low-voltage line fault, low-voltage electrical equipment fault practical training device designed based on the low-voltage distribution system. The low-voltage distribution system specifically comprises: the incoming line enters from the primary side of the transformer, enters a three-phase air switch QF1 after being subjected to voltage reduction (in actual use, a 1: 1 transformer can also be adopted, the effect is only for simulating the incoming line transformer), the incoming line is a main incoming line switch of the low-voltage distribution system, the outgoing line of the three-phase air switch QF1 respectively enters a three-phase electric energy meter KWH1, a single-phase electric energy meter KWH2 and a single-phase electric energy meter KWH3, and three electric energy meters simulate incoming electric meters of users and respectively represent industrial electricity, residential electricity and residential electricity. The three electric energy meters, namely a three-phase electric energy meter KWH1, a single-phase electric energy meter KWH2 and a single-phase electric energy meter KWH3 are respectively connected with a three-phase air switch QF2, a single-phase air switch QF3 and a single-phase disconnecting link QS downwards, so that a three-phase system and two single-phase systems in a low-voltage power distribution system are respectively simulated, and the reason for adopting the single-phase disconnecting link QS is that a disconnecting link is still used in rural areas at present and is not changed into an air switch with better performance. The air switch and the knife switch do not belong to the assets of power supply companies any more towards the lower end, and simulation is not needed any more.
Fig. 2 is the utility model discloses a low pressure system troubleshooting practical training device's schematic diagram, as shown in the figure, total inlet wire air switch QF1 department has set up the three-point fault of opening a way, three-phase electric energy meter KWH1 department has set up the three-point fault of opening a way, single-phase electric energy meter KWH2 department has set up the fault of opening a way a little, single-phase electric energy meter KWH3 department has set up the fault of opening a way a little, three-phase air switch QF2 has set up the fault of opening a way a three-point, single-phase air switch QF3 has set up the fault of opening a way a little, single-phase switch. The following description is made for the setting of the fault point of the air switch, the knife switch and the electric energy meter respectively:
1. the air switch set open fault requires that the open point (incoming and outgoing terminals) should be closed when the air switch is in the closed position, but this point needs to be openable due to the need to simulate the presence of a fault. The shell of the conventional air switch can be opened, the connected copper sheets are cut off, and then the upper copper sheet and the lower copper sheet of the air switch are respectively welded on two wiring ends of the normally closed contact of the intermediate relay by using an electric iron (the function of the intermediate relay is described later).
2. The knife switch set open fault requires that the open point (incoming and outgoing terminals) should be closed when the knife switch is in the closed position, but this point needs to be openable due to the need to simulate the presence of a fault. The fuse can be not installed in the single-phase disconnecting switch, and then the upper copper sheet and the lower copper sheet of the disconnecting switch are respectively welded on two wiring ends of the normally closed contact of the intermediate relay by using electric iron.
3. The electric energy meter is provided with an open fault, so that after the wiring of the electric energy meter is completed, an open point (an incoming line terminal and an outgoing line terminal) is closed originally, but the open point needs to be openable due to the existence of the analog fault. The electric energy meter has compact structure, and partial terminals are connected together and are very difficult to open. If the terminals are opened forcibly, the electric energy meter is damaged, and the electric energy meter which is seriously damaged is obviously not suitable to be installed on the practical training equipment, so that negative effects can be brought to practical training personnel. The single-phase electric energy meter can be divided into two parts: the upper part is an electric energy display and electric energy meter parameter display part, and the lower part is a wiring terminal of the electric energy meter. The wiring terminal part can not be opened at all, the solution here is to print the upper part electric energy display and electric energy meter parameter display part of the electric energy meter by a 3D printer, and the actual sensory effect is consistent with the real electric energy meter. Meanwhile, the wiring terminal part of the lower part of the electric energy meter is replaced by the terminal strip, and the metal conductor part of the terminal strip is completely arranged outside, so that classification faults are conveniently set. The low-voltage system troubleshooting training device has the advantages that the low-voltage system troubleshooting training device is used for training the capability of searching and troubleshooting faults of a low-voltage power distribution system, and whether the electric energy meter operates or not has no practical effect, so that the simulation of a part of the structure of the electric energy meter by using a 3D printed model is completely feasible.
Fig. 3 is a control diagram of the electric energy meters KWH1, KWH2 and KWH3, the air switches QF2 and QF3, and the disconnecting link QS, and it can be seen from the figure that both the upper and lower terminals of the failure point provided on KWH1, KWH2, KWH3, QF2, QF3, and QS are connected to the normally closed contact of the corresponding intermediate relay. When the low-voltage system troubleshooting practical training device is electrified to prepare practical training, all fault points to be set are in a normal state, and if the fault points need to be set, only the intermediate relay connected to the fault points needs to act. For example, a fault point on the disconnecting link QS needs to be set to open, and only the corresponding intermediate relay KM3 needs to be operated. For the same reason, the same method can be used for the fault point setting of the air switch QF1, and so on.
The existing methods for controlling the actions of the intermediate relays are multiple, and buttons, a single chip microcomputer or a PLC can be used for controlling the actions. The upper computer can be conveniently controlled by the single chip microcomputer and the PLC, the single chip microcomputer or the PLC is controlled by operating software on the upper computer, and the purpose of controlling the intermediate relay to set a fault is achieved. Meanwhile, as a practical training device for teaching, the upper computer can be used for controlling by using software to realize additional functions of question bank setting, automatic scoring, examination time setting and the like.
The foregoing is merely exemplary and illustrative of the principles of the present invention, and various modifications, additions and substitutions as may be made to the specific embodiments described herein by those skilled in the art are intended without departing from the spirit and scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a real device of instructing of low pressure system troubleshooting for go up low-voltage line trouble, low pressure electrical equipment trouble and investigate real the instructing to low pressure distribution system, its characterized in that: the incoming line enters from the primary side of the transformer, enters a three-phase air switch QF1 after being subjected to voltage reduction, and respectively enters a three-phase electric energy meter KWH1, a single-phase electric energy meter KWH2 and a single-phase electric energy meter KWH3 from an outgoing line of the three-phase air switch QF1, and the three electric energy meters are respectively connected to a three-phase air switch QF2, a single-phase air switch QF3 and a single-phase disconnecting link QS and are respectively used for simulating a three-phase system and two single-phase systems in a low-voltage power distribution system; the main incoming line air switch QF1 is provided with a three-point open-circuit fault, the three-phase electric energy meter KWH1 is provided with a three-point open-circuit fault, the single-phase electric energy meter KWH2 is provided with a one-point open-circuit fault, the single-phase electric energy meter KWH3 is provided with a one-point open-circuit fault, the three-phase air switch QF2 is provided with a three-point open-circuit fault, the single-phase air switch QF3 is provided with a one-point open-circuit fault, and the single-phase knife switch QS is provided with a.
2. The low-voltage system troubleshooting training device of claim 1 further comprising: the inlet wire and the outlet terminal inside the air switch with the fault point are connected through two wiring ends of a normally closed contact of an intermediate relay, 3 fault point open circuits are formed in the three-phase air switch through 3 intermediate relays, and 1 fault point open circuit is formed in the single-phase air switch through 1 intermediate relay.
3. The low-voltage system troubleshooting training device of claim 1 further comprising: the upper copper sheet and the lower copper sheet in the disconnecting link with the fault points are respectively welded on two wiring ends of a normally closed contact of the intermediate relay, and 1 fault point open circuit is formed in the disconnecting link through 1 intermediate relay.
4. The low-voltage system troubleshooting training device of claim 1 further comprising: the inlet wire and the outlet terminal of the electric energy meter with the fault point are connected through two wiring ends of a normally closed contact of an intermediate relay, 3 fault point open circuits are formed in the three-phase electric energy meter through 3 intermediate relays, and 1 fault point open circuit is formed in the single-phase electric energy meter through 1 intermediate relay.
5. The low-voltage system troubleshooting training device of claim 1 or 4 further characterized by: and the electric energy display and electric energy meter parameter display part as the upper component of the electric energy meter is replaced by a 3D printing model.
6. The low-voltage system troubleshooting training device of claim 2, 3 or 4 further characterized by: when the practical training device is electrified to prepare for practical training, all fault points to be set are in a normal state, and if the fault points are required to be set on the air switch, the disconnecting link and the electric energy meter, only the intermediate relay at the corresponding position is required to act.
7. The low-voltage system troubleshooting training device of claim 6, further comprising: the action of each intermediate relay to form a fault point is realized through a button, a single chip microcomputer or PLC control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920385252.9U CN209879929U (en) | 2019-03-25 | 2019-03-25 | Low-voltage system troubleshooting training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920385252.9U CN209879929U (en) | 2019-03-25 | 2019-03-25 | Low-voltage system troubleshooting training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209879929U true CN209879929U (en) | 2019-12-31 |
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ID=68956708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920385252.9U Expired - Fee Related CN209879929U (en) | 2019-03-25 | 2019-03-25 | Low-voltage system troubleshooting training device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209879929U (en) |
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2019
- 2019-03-25 CN CN201920385252.9U patent/CN209879929U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |