Combined distribution network low voltage troubleshooting training device and training method

Abstract

The present invention relates to the technical field of typical distribution network electrical equipment training, and provides a combined distribution network low voltage troubleshooting training device and training method. The training device includes a substrate, a substation module and a meter box module detachably mounted on the substrate, wherein the substation module is composed of an electrical equipment model in the distribution substation and a first fault switch group; during a fault test, the switches in the first fault switch group are connected in series between the electrical equipment models in the distribution substation to simulate common faults in the distribution substation by switching on and off one by one; the meter box module is composed of an electrical equipment model at the user's meter end and a second fault switch group; during a fault test, the switches in the second fault switch group are connected in series between the electrical equipment models at the user's meter end to simulate common faults at the user's meter end by switching on and off one by one. It is convenient to disassemble and assemble, easy to carry, highly safe, low cost, and easy to promote.

Description

Technical Field

[0001] The present invention relates to the technical field of typical distribution network electrical equipment training, and in particular to a combined distribution network low voltage troubleshooting training device and a training method. Background Art

[0002] In order to take the power system professional construction plan as the direction, the national demonstration school construction plan as the basis, the power system professional recognition training project construction as the focus, tighten the practical teaching quality center, highlight the role of practical teaching in cultivating students' basic skills and innovative abilities, and build a distinctive practical teaching environment that meets the needs of cultivating innovative and application-oriented talents, it is necessary to fully ensure that employees get enough time for high-quality "real" practical hands-on skills training during the training process to achieve "zero distance" contact with engineering practice.

[0003] Traditional training methods require setting up a small-scale substation, and then recreating various faults in the substation through on-site restoration, so that technicians can operate and train in a specific environment. The disadvantages of this traditional training method are: it is too complicated and requires climbing; the venue is fixed and not suitable for promotion; it is unsafe; it requires high fees and costs.

[0004] In order to improve the shortcomings of traditional solutions, there is an urgent need for a combined distribution network low-voltage troubleshooting training device and training method to achieve the characteristics of easy disassembly and assembly, convenient carrying, high safety, low cost, and easy promotion. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the traditional training method adopted in the above-mentioned existing distribution network, and to provide a combined distribution network low voltage troubleshooting training device and training method, which is easy to disassemble and assemble, convenient to carry, highly safe, low cost and easy to promote.

[0006] To achieve the above-mentioned objectives, the present invention is implemented in the first aspect through the following technical solutions: a combined distribution network low-voltage troubleshooting training device, including a substrate, a substation module and a meter box module detachably installed on the substrate, the substation module is composed of an electrical equipment model in the distribution substation and a first fault switch group; during fault testing, the switches in the first fault switch group are connected in series between the electrical equipment models in the distribution substation to simulate common faults in the distribution substation by switching on and off one by one; the meter box module is composed of an electrical equipment model at the user meter end and a second fault switch group; during fault testing, the switches in the second fault switch group are connected in series between the electrical equipment models at the user meter end to simulate common faults at the user meter end by switching on and off one by one.

[0007] A further preferred solution of the present invention is that the electrical equipment model in the distribution substation area constituting the substation area module includes:

[0008] The public transformer low-voltage terminal model is used to simulate the public transformer low-voltage line in the distribution station area;

[0009] The busbar model of the public transformer distribution box is used to simulate the busbar wiring in the distribution area;

[0010] The public transformer terminal model is used to simulate the public transformer terminal in the distribution area and simulate related faults when the fault switch is connected in series;

[0011] The three-phase voltage regulating transformer model is used to simulate the three-phase voltage regulating transformer in the distribution station area and simulate the related faults when the fault switch is connected in series; and

[0012] Socket, used to simulate wiring to the user's meter terminal;

[0013] The first fault switch group constituting the station area module includes fault setting switches K1-K4;

[0014] During the training, the electrical equipment models in the distribution area are connected through wires according to the circuit schematic diagram of the area module;

[0015] The fault setting switches K1-K4 are connected in series between the corresponding electrical equipment models according to the preset fault test types.

[0016] A further preferred embodiment of the present invention is that the public transformer low-voltage terminal model, the public transformer distribution box busbar model and the public transformer terminal model are installed on the front of the substrate; the three-phase voltage regulating transformer model, the fault setting switches K1-K4, and the socket are installed on the back of the substrate.

[0017] A further preferred solution of the present invention is that a main power switch is also provided on the back of the substrate; when wiring, the external power supply is coupled to the connection terminal of the three-phase voltage regulating transformer model through the main power switch.

[0018] A further preferred solution of the present invention is: one end of the fault setting switch K1 is coupled to the neutral point of the three-phase voltage-regulating transformer model, the other end of the fault setting switch K1 is coupled to one end of the fault setting switch K2, and the other end of the fault setting switch K2 is coupled to the ground wire in the busbar model of the public transformer distribution box.

[0019] A further preferred solution of the present invention is: one end of the fault setting switch K3 is coupled to the N' port of the public transformer terminal model, and the other end of the fault setting switch K3 is coupled to the ground wire on the busbar model of the public transformer distribution box.

[0020] A further preferred solution of the present invention is: one end of the fault setting switch K4 is coupled to the A' port of the public transformer terminal model, and one end of the fault setting switch K4 is coupled to the bus A phase on the busbar model of the public transformer distribution box; a step-down circuit is also connected in parallel at both ends of the fault setting switch K4.

[0021] A further preferred solution of the present invention is that the electrical equipment model constituting the user meter end of the meter box module includes:

[0022] Wiring terminals, used to simulate branch terminals;

[0023] Three-phase user meter, used to simulate three-phase user meter and simulate related faults when connected in series with fault switches;

[0024] Single-phase user meter, used to simulate single-phase user meter and simulate related faults when connected in series with fault switches;

[0025] A station area connection port, used to connect to the station area module; and

[0026] A simulated user module is used to simulate the user end;

[0027] The second fault switch group constituting the meter box module includes fault setting switches K5-K10;

[0028] During the training, the electrical equipment model at the user's meter end is wired through wires according to the circuit schematic diagram of the meter box module;

[0029] The fault setting switches K5-K10 are connected in series between the corresponding electrical equipment models according to the preset fault test types.

[0030] A further preferred solution of the present invention is: the wiring terminals, three-phase user meters and single-phase user meters are installed on the front side of the substrate; the substation connection ports, fault setting switches K5-K10, and analog user modules are installed on the back side of the substrate.

[0031] In a second aspect, the present invention is implemented by the following technical solution: a combined distribution network low voltage troubleshooting training method, using the combined distribution network low voltage troubleshooting training device as described in the first aspect, comprising the following steps:

[0032] S1: Based on the electrical equipment of the combined distribution network low voltage troubleshooting training device and in combination with actual conditions, draw the circuit schematic diagram of the platform module and the circuit schematic diagram of the meter box module;

[0033] S2: installing the electrical equipment model and the first fault switch group in the distribution area on the substrate, and completing the wiring according to the circuit schematic diagram of the area module;

[0034] S3: Install the electrical equipment model of the user meter end and the second fault switch group on the substrate, and complete the wiring according to the circuit schematic diagram of the meter box module;

[0035] S4: Connect the station area module and the meter box module;

[0036] S5: Connect an external power supply, close the switches in the first fault switch group and the second fault switch group one by one, and complete the low voltage fault test.

[0037] In summary, the present invention has the following beneficial effects: 1. Compared with the traditional solution, the combined distribution network low voltage troubleshooting training device of this solution is easy to disassemble and assemble, and is easy to carry; the environment is real, and the teaching effect is good; it can simulate various substation faults; it can be equipped with leakage protection devices, which is safer; the cost is cheaper than the traditional solution. 2. It can be used indoors and outdoors, can accurately simulate the daily situation of the substation, is safe and reliable, easy to carry and easy to use; 3. The model adopts a modular design, and has a long service life under normal storage conditions, and can be replaced even if a fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a circuit schematic diagram of the station area module described in Example 1.

[0039] Figure 2 It is a circuit schematic diagram of the meter box module described in Example 1.

[0040] Figure 3 It is a front view of the platform module described in Example 1.

[0041] Figure 4 This is a rear view of the station module described in Example 1.

[0042] Figure 5 It is a front view of the meter box module described in Example 1.

[0043] Figure 6 This is a rear view of the meter box module described in Example 1.

[0044] in:

[0045] 110. Public transformer low-voltage terminal model; 120. Public transformer distribution box busbar model; 130. Public transformer terminal model; 140. Three-phase voltage regulating transformer model; 150. Socket; 160. First fault switch group; 170. Main power switch; 210. Wiring terminal; 220. Three-phase user meter; 230. Single-phase user meter; 240. Substation connection port; 250. Analog user module; 260. Second fault switch group. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0047] This embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0048] Embodiment 1:

[0049] like Figure 1-6 As shown, this embodiment provides a combined distribution network low voltage troubleshooting training device, including a base plate, a station area module and a meter box module detachably installed on the base plate.

[0050] The substation module is composed of an electrical equipment model in the substation and a first fault switch group 160. During fault testing, switches in the first fault switch group 160 are connected in series between the electrical equipment models in the substation to simulate common faults in the substation by switching them on and off one by one.

[0051] The meter box module is composed of an electrical device model at the user meter end and a second fault switch group 260. During fault testing, switches in the second fault switch group 260 are connected in series between the electrical device models at the user meter end to simulate common faults at the user meter end by switching on and off one by one.

[0052] In this embodiment, two base plates are provided, one for installing the electrical equipment model and the first fault switch group 160 in the distribution station area, and the other for installing the electrical equipment model and the second fault switch group 260 at the user meter end. The base plate is provided with screw holes and wire holes for passing wires, the electrical equipment model is installed on the base plate by screws, and the connection wires between the electrical equipment models can pass through the base plate through the wire holes.

[0053] The electrical equipment models in the distribution substation area constituting the substation area module include a public transformer low-voltage terminal model 110 , a public transformer distribution box busbar model 120 , a public transformer terminal model 130 , a three-phase voltage regulating transformer model 140 , and a socket 150 .

[0054] The public transformer low-voltage terminal model 110 is used to simulate the public transformer low-voltage line in the distribution area. The public transformer distribution box busbar model 120 is used to simulate the busbar wiring in the distribution area. The public transformer terminal model 130 is used to simulate the public transformer terminal in the distribution area and simulate related faults when the fault switch is connected in series. The three-phase voltage regulating transformer model 140 is used to simulate the three-phase voltage regulating transformer in the distribution area and simulate related faults when the fault switch is connected in series. The socket 150 is used to simulate the wiring to the user meter end.

[0055] The first fault switch group 160 constituting the substation module includes fault setting switches K1-K4. During training, each electrical equipment model in the distribution substation is connected by wires according to the circuit schematic diagram of the substation module. The fault setting switches K1-K4 are connected in series between the corresponding electrical equipment models according to the preset fault test type.

[0056] In this embodiment, the public transformer low-voltage terminal model 110, the public transformer distribution box busbar model 120 and the public transformer terminal model 130 are installed on the front of the substrate. The three-phase voltage regulating transformer model 140, the fault setting switches K1-K4, and the socket 150 are installed on the back of the substrate. The back of the substrate is also provided with a main power switch 170. When connecting, the external power supply is coupled to the connection terminal of the three-phase voltage regulating transformer model 140 through the main power switch 170. One end of the fault setting switch K1 is coupled to the neutral point of the three-phase voltage regulating transformer model 140, and the other end of the fault setting switch K1 is coupled to one end of the fault setting switch K2, and the other end of the fault setting switch K2 is coupled to the ground wire in the public transformer distribution box busbar model 120. One end of the fault setting switch K3 is coupled to the N' port of the public transformer terminal model 130, and the other end of the fault setting switch K3 is coupled to the ground wire on the public transformer distribution box busbar model 120. One end of the fault setting switch K4 is coupled to the A' port of the public transformer terminal model 130, and one end of the fault setting switch K4 is coupled to the busbar A phase on the public transformer distribution box busbar model 120; a step-down circuit is also connected in parallel at both ends of the fault setting switch K4 to simulate a low voltage circuit. The step-down circuit is composed of a diode and a voltage regulator.

[0057] In this embodiment, the electrical equipment model constituting the user meter end of the meter box module includes a connection terminal 210 , a single-phase user meter 230 , an area connection port 240 and a simulated user module 250 .

[0058] The wiring terminal 210 is used to simulate the branch terminal. The three-phase user meter 220 is used to simulate the three-phase user meter 220 and simulate related faults when the fault switch is connected in series. The single-phase user meter 230 is used to simulate the single-phase user meter 230 and simulate related faults when the fault switch is connected in series. The substation connection port 240 is used to connect to the substation module. The simulated user module 250 is used to simulate the user end. In this embodiment, the simulated user module 250 uses a light bulb as an example.

[0059] The second fault switch group 260 constituting the meter box module includes fault setting switches K5-K10. During training, the electrical equipment model at the user's meter end is wired according to the circuit schematic diagram of the meter box module through wires. The fault setting switches K5-K10 are connected in series between the corresponding electrical equipment models according to the preset fault test type. For specific wiring reference Figure 2 , 5 and 6.

[0060] Specifically, the connection terminal 210, the three-phase user meter 220 and the single-phase user meter 230 are installed on the front side of the substrate, and the station area connection port 240, the fault setting switch K5-K10, and the analog user module 250 are installed on the back side of the substrate.

[0061] The circuit schematic diagram of the substation module and the circuit schematic diagram and connections of the meter box module are common knowledge to technicians in the existing field and will not be described in detail here.

[0062] The present invention also provides a combined distribution network low voltage troubleshooting training method, which uses the combined distribution network low voltage troubleshooting training device described in Example 1 and mainly includes the following steps:

[0063] S1: Based on the electrical equipment of the combined distribution network low-voltage troubleshooting training device and in combination with actual conditions, draw the circuit schematic diagram of the platform module and the circuit schematic diagram of the meter box module.

[0064] S2: Install the electrical equipment model and the first fault switch group in the distribution station area on the substrate, and complete the wiring according to the circuit schematic diagram of the station area module.

[0065] S3: Install the electrical equipment model of the user meter end and the second fault switch group on the substrate, and complete the wiring according to the circuit schematic diagram of the meter box module.

[0066] S4: Connect the substation module and the meter box module.

[0067] S5: Connect an external power supply, close the switches in the first fault switch group and the second fault switch group one by one, and complete the low voltage fault test.

[0068] The results of the fault test using the combined distribution network low voltage troubleshooting training method are as follows:

[0069] Distribution network low voltage troubleshooting training device test status table

[0070] Serial number Simulated fault type Simulated fault test results 1 The gear position of the public gear is too low Meet the Standard 2 The neutral line of the public transformer has poor contact Meet the Standard 3 Internal neutral line fault of the transformer Meet the Standard 4 The neutral line of the secondary line of the public transformer terminal is broken Meet the Standard 5 The phase line of the public transformer terminal has poor contact or the terminal is damaged Meet the Standard 6 Heavy loads at the end of the line are concentrated on a single phase Meet the Standard 7 Low voltage line neutral line burnout Meet the Standard 8 Three-phase meter neutral line failure Meet the Standard 9 Three-phase electric meter itself is damaged Meet the Standard 10 Single-phase meter itself is damaged Meet the Standard 11 The neutral line of the meter box access line is faulty (single-phase meter) Meet the Standard

[0071] Among them, a three-phase voltage regulating transformer model is used to perform fault test numbered 1, and fault setting switches K1-K10 are used one by one to perform fault tests numbered 2-11.

Claims

1. Combined distribution network low voltage troubleshooting training device, It is characterized in that It includes a substrate, a substation module and a meter box module detachably mounted on the substrate, wherein the substation module is composed of an electrical equipment model in a distribution substation and a first fault switch group; during a fault test, switches in the first fault switch group are connected in series between the electrical equipment models in the distribution substation to simulate common faults in the distribution substation by switching them on and off one by one; The meter box module is composed of an electrical equipment model at the user meter end and a second fault switch group; during a fault test, switches in the second fault switch group are connected in series between the electrical equipment models at the user meter end to simulate common faults at the user meter end by switching them on and off one by one; The public transformer low-voltage terminal model is used to simulate the public transformer low-voltage line in the distribution station area; The busbar model of the public transformer distribution box is used to simulate the busbar wiring in the distribution area; The public transformer terminal model is used to simulate the public transformer terminal in the distribution area and simulate related faults when the fault switch is connected in series; The three-phase voltage regulating transformer model is used to simulate the three-phase voltage regulating transformer in the distribution station area and simulate the related faults when the fault switch is connected in series; and Socket, used to simulate wiring to the user's meter terminal; The first fault switch group constituting the station area module includes fault setting switches K1-K4; During the training, the electrical equipment models in the distribution area are connected through wires according to the circuit schematic diagram of the area module; The fault setting switches K1-K4 are connected in series between the corresponding electrical equipment models according to the preset fault test types.

2. The combined distribution network low voltage troubleshooting training device according to claim 1, It is characterized in that The public transformer low-voltage terminal model, public transformer distribution box busbar model and public transformer terminal model are installed on the front of the substrate; the three-phase voltage regulating transformer model, fault setting switches K1-K4, and sockets are installed on the back of the substrate.

3. The combined distribution network low voltage troubleshooting training device according to claim 2, It is characterized in that A main power switch is also provided on the back of the substrate; when wiring, the external power supply is coupled to the connection terminal of the three-phase voltage regulating transformer model through the main power switch.

4. The combined distribution network low voltage troubleshooting training device according to claim 2, It is characterized in that One end of the fault setting switch K1 is coupled to the neutral point of the three-phase voltage regulating transformer model, the other end of the fault setting switch K1 is coupled to one end of the fault setting switch K2, and the other end of the fault setting switch K2 is coupled to the ground wire in the busbar model of the public transformer distribution box.

5. The combined distribution network low voltage troubleshooting training device according to claim 2, It is characterized in that One end of the fault setting switch K3 is coupled to the N' port of the public transformer terminal model, and the other end of the fault setting switch K3 is coupled to the ground wire on the busbar model of the public transformer distribution box.

6. The combined distribution network low voltage troubleshooting training device according to claim 2, It is characterized in that One end of the fault setting switch K4 is coupled to the A' port of the public transformer terminal model, and one end of the fault setting switch K4 is coupled to the busbar A phase on the busbar model of the public transformer distribution box; A voltage reduction circuit is also connected in parallel between the two ends of the fault setting switch K4.

7. The combined distribution network low voltage troubleshooting training device according to claim 1, It is characterized in that The electrical equipment model constituting the user meter end of the meter box module includes: Wiring terminals, used to simulate branch terminals; Three-phase user meter, used to simulate three-phase user meter and simulate related faults when connected in series with fault switches; Single-phase user meter, used to simulate single-phase user meter and simulate related faults when connected in series with fault switches; A station area connection port, used to connect to the station area module; and A simulated user module is used to simulate the user end; The second fault switch group constituting the meter box module includes fault setting switches K5-K10; During the training, the electrical equipment model at the user's meter end is wired through wires according to the circuit schematic diagram of the meter box module; The fault setting switches K5-K10 are connected in series between the corresponding electrical equipment models according to the preset fault test types.

8. The combined distribution network low voltage troubleshooting training device according to claim 7, It is characterized in that The wiring terminals, three-phase user meters and single-phase user meters are installed on the front side of the substrate; the station area connection ports, fault setting switches K5-K10, and analog user modules are installed on the back side of the substrate.

9. A combined distribution network low voltage troubleshooting training method, using the combined distribution network low voltage troubleshooting training device as claimed in any one of claims 1 to 8, It is characterized in that The following steps are involved: S1: Based on the electrical equipment of the combined distribution network low voltage troubleshooting training device and in combination with actual conditions, draw the circuit schematic diagram of the platform module and the circuit schematic diagram of the meter box module; S2: installing the electrical equipment model and the first fault switch group in the distribution area on the substrate, and completing the wiring according to the circuit schematic diagram of the area module; S3: Install the electrical equipment model of the user meter end and the second fault switch group on the substrate, and complete the wiring according to the circuit schematic diagram of the meter box module; S4: Connect the station area module and the meter box module; S5: Connect an external power supply, close the switches in the first fault switch group and the second fault switch group one by one, and complete the low voltage fault test.

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