No-load overvoltage protection device for generator

Abstract

The utility model discloses a generator no-load overvoltage protection device, which comprises a test generator and a capacitor test seat, the capacitor test seat comprises a plurality of groups of capacitor connecting plates for capacitor test, and one side of each capacitor connecting plate is provided with an interface for parallel connection / series connection of capacitors, and relates to the technical field of engine test protection. According to the utility model, the capacitor testing seat comprises a plurality of capacitor connecting plates for capacitor testing, one side of each capacitor connecting plate is provided with an interface for capacitor parallel / series connection, and one end of the capacitor testing seat far away from the testing generator is electrically connected with the logic gate circuit. Therefore, before the test generator is connected with the logic gate circuit, capacitance setting protection can be carried out through the capacitance test seat, and the capacitance setting protection can change the size of the test capacitance through series connection / parallel connection, so that the logic gate circuit is effectively protected from being broken down by the voltage of the test generator, and the overall safety of the test circuit is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of engine test protection, in particular to a generator no-load overvoltage protection device. Background Art

[0002] A generator is a device that converts mechanical energy into electrical energy, typically operating through the principle of electromagnetic induction. Its primary function is to convert mechanical energy (typically driven by an internal combustion engine, steam turbine, or hydraulic turbine) into electrical energy for use in power equipment, electrical devices, or the power grid.

[0003] The patent with publication number CN206237119U discloses a generator no-load overvoltage protection device. The patent specifically discloses that "the utility model relates to the field of electrical technology, and discloses a generator no-load overvoltage protection device, which includes: a first input end for receiving a generator voltage signal; a second input end for receiving a switching signal of a generator transformer group output circuit breaker; and an overvoltage protection action signal output module, connected to the first input end and the second input end, for outputting an execution overvoltage protection action signal to the overvoltage protection action device according to the generator voltage signal and the switching signal of the generator transformer group output circuit breaker." The technical solution realizes that "the utility model can achieve effective protection of the generator, reduce the burden on the demagnetization device, and avoid the occurrence of safety hazards caused by improper overvoltage protection."

[0004] However, in actual use, the device lacks an effective protection device for the logic gate circuit between the generator and the logic gate circuit, which makes the logic gate circuit easily broken down and damaged due to excessive voltage. There is room for improvement. Utility Model Content

[0005] The purpose of the present invention is to provide a generator no-load overvoltage protection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a generator no-load overvoltage protection device, comprising a test generator, a capacitor test socket, and a logic gate circuit, wherein one end of the capacitor test socket away from the test generator is electrically connected to the logic gate circuit, and the capacitor test socket includes several groups of capacitor connection plates for capacitor testing, and one side of the capacitor connection plate is provided with an interface for parallel / series connection of capacitors.

[0007] As a further solution of the present invention: a generator no-load overvoltage protection device also includes an anti-detachment seat, the anti-detachment seat includes a spring and a contact head, one end of the spring is fixedly connected to the capacitor connecting plate, and the other end is fixedly connected to the contact head, and the contact head is movably connected to the surface wall of the test capacitor.

[0008] As a further solution of the present invention: a generator no-load overvoltage protection device, one end of the capacitor test seat is rotatably connected to a parallel knife switch through a rotating shaft, and the other end of the capacitor test seat is fixedly connected to a parallel knife switch seat, and the parallel knife switch is adapted to the parallel knife switch seat.

[0009] As a further solution of the present invention: a generator no-load overvoltage protection device, one end of the capacitor test seat is rotatably connected to a series switch through a rotating shaft, and the other end of the capacitor test seat is fixedly connected to a series gate seat, and the series switch is adapted to the series gate seat.

[0010] As a further solution of the present invention: a generator no-load overvoltage protection device, a parallel test port is fixedly installed on one side of the capacitor test socket, and the parallel knife switch and the parallel switch socket are adapted to the parallel test port.

[0011] As a further solution of the present invention: a generator no-load overvoltage protection device, a series test port is fixedly installed on one side of the capacitor test seat, and the series gate seat and the parallel test port are adapted to the series test port.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Since the capacitor test socket includes several groups of capacitor connection plates for capacitor testing, one side of the capacitor connection plate is provided with an interface for parallel / series connection of capacitors, and the end of the capacitor test socket away from the test generator is electrically connected to the logic gate circuit, the test generator can be protected by the capacitor test socket before being connected to the logic gate circuit. The capacitor setting protection can also change the size of the test capacitor by series / parallel connection, thereby effectively protecting the logic gate circuit from being broken down by the voltage of the test generator and protecting the safety of the entire test circuit.

[0014] 2. Since the anti-slip seat includes a spring and a contact head, one end of the spring is fixedly connected to the capacitor connecting plate, and the other end is fixedly connected to the contact head, and the contact head is movably connected to the surface wall of the test capacitor. When the test capacitor and the capacitor connecting plate are screwed together, the elasticity of the anti-slip seat can tighten the screw mouth of the test capacitor and the capacitor connecting plate, which can effectively prevent the problem of loosening or sliding of the threads of the test capacitor and the capacitor connecting plate, and solve the problem of poor contact of the test capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a generator no-load overvoltage protection device of the present invention;

[0016] Figure 2 This is a test circuit diagram for testing a generator in a no-load overvoltage protection device of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of a generator no-load overvoltage protection device of the utility model;

[0018] Figure 4 This is a schematic diagram of the split structure of the anti-dropout seat and the capacitor connection plate in a generator no-load overvoltage protection device of the utility model;

[0019] Figure 5 This is a schematic structural diagram of an anti-dropout seat in a generator no-load overvoltage protection device according to the present invention;

[0020] In the figure: 1. Capacitor test socket; 2. Capacitor connecting plate; 3. Anti-drop seat; 31. Spring; 32. Contact head; 4. Parallel knife switch; 5. Parallel switch seat; 6. Rotating shaft; 7. Series knife switch; 8. Series switch seat; 9. Parallel test port; 10. Series test port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0023] In an embodiment of the utility model, a generator no-load overvoltage protection device includes a test generator, a capacitor test socket 1 and a logic gate circuit. The capacitor test socket 1 is electrically connected to the logic gate circuit at one end away from the test generator. The capacitor test socket 1 includes several groups of capacitor connection plates 2 for capacitor testing, and one side of the capacitor connection plate 2 is provided with an interface for parallel / series connection of capacitors.

[0024] Other embodiments of the present invention: Since the capacitor test socket 1 includes several groups of capacitor connection plates 2 for capacitor testing, one side of the capacitor connection plate 2 is provided with an interface for parallel / series connection of capacitors, and the end of the capacitor test socket 1 away from the test generator is electrically connected to the logic gate circuit, the test generator can be protected by the capacitor setting through the capacitor test socket 1 before being connected to the logic gate circuit, and the capacitor setting protection can change the size of the test capacitor by series / parallel connection, thereby effectively protecting the logic gate circuit from being broken down by the voltage of the test generator, thereby protecting the safety of the entire test circuit.

[0025] As a further solution of the present invention: a generator no-load overvoltage protection device also includes an anti-detachment seat 3, the anti-detachment seat 3 includes a spring 31 and a contact head 32, one end of the spring 31 is fixedly connected to the capacitor connecting plate 2, and the other end is fixedly connected to the contact head 32, and the contact head 32 is movably connected to the surface wall of the test capacitor.

[0026] As a further solution of the present invention: a generator no-load overvoltage protection device, one end of the capacitor test socket 1 is rotatably connected to the parallel knife 4 through the rotating shaft 6, and the other end of the capacitor test socket 1 is fixedly connected to the parallel gate seat 5, and the parallel knife 4 is adapted to the parallel gate seat 5.

[0027] As a further solution of the present invention: a generator no-load overvoltage protection device, one end of the capacitor test socket 1 is rotatably connected to a series knife switch 7 through a rotating shaft 6, and the other end of the capacitor test socket 1 is fixedly connected to a series gate seat 8, and the series knife switch 7 is adapted to the series gate seat 8.

[0028] As a further solution of the present invention: a generator no-load overvoltage protection device, a parallel test port 9 is fixedly installed on one side of the capacitor test socket 1, and the parallel knife switch 4 and the parallel gate seat 5 are adapted to the parallel test port 9.

[0029] As a further solution of the present invention: a generator no-load overvoltage protection device, a series test port 10 is fixedly installed on one side of the capacitor test seat 1, and the series gate seat 8 and the parallel test port 9 are adapted to the series test port 10.

[0030] The utility model discloses other embodiments: because the anti -drop seat 3 includes spring 31 and contact head 32, spring 31 one end and the fixed connection of electric capacity connecting plate 2, the other end and contact head 32 fixed connection and contact head 32 and the movable connection of the surface wall of test electric capacity, when the screwing of test electric capacity and electric capacity connecting plate 2, can be through the elasticity of anti -drop seat 3 and make test electric capacity and the screw mouth of electric capacity connecting plate 2 tight, can effectively avoid the problem of test electric capacity and the thread loosening or sliding of electric capacity connecting plate 2, solve the problem of test electric capacity contact badly.

[0031] As the utility model further scheme: a generator no-load overvoltage protection device further includes logic gate circuit, the electric capacity test seat 1 is away from the one end of test generator and is electrically connected with logic gate circuit.

[0032] The utility model discloses a working principle is: because electric capacity test seat 1 includes several groups of electric capacity connecting plate 2 that can supply electric capacity test, and one side of electric capacity connecting plate 2 is provided with the interface of electric capacity parallel / series, and the electric capacity test seat 1 is away from the one end of test generator and is electrically connected with logic gate circuit, therefore test generator can carry out electric capacity setting protection through electric capacity test seat 1 before being connected with logic gate circuit, and electric capacity setting protection can change the size of test electric capacity through series / parallel, thereby effectively protecting logic gate circuit not being voltage breakdown of test generator, and protecting the safety of test circuit whole.

[0033] Because the anti -drop seat 3 includes spring 31 and contact head 32, spring 31 one end and the fixed connection of electric capacity connecting plate 2, the other end and contact head 32 fixed connection and contact head 32 and the movable connection of the surface wall of test electric capacity, when the screwing of test electric capacity and electric capacity connecting plate 2, can be through the elasticity of anti -drop seat 3 and make test electric capacity and the screw mouth of electric capacity connecting plate 2 tight, can effectively avoid the problem of test electric capacity and the thread loosening or sliding of electric capacity connecting plate 2, solve the problem of test electric capacity contact badly.

[0034] The above described, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model discloses the technical range of the utility model, according to the technical scheme of the utility model and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A generator no-load overvoltage protection device, characterized in that: The invention comprises a test generator, a capacitor test socket (1) and a logic gate circuit, wherein one end of the capacitor test socket (1) away from the test generator is electrically connected to the logic gate circuit, and the capacitor test socket (1) comprises a plurality of capacitor connection plates (2) for capacitor testing, and one side of the capacitor connection plate (2) is provided with an interface for capacitor parallel / series connection.

2. The generator no-load overvoltage protection device according to claim 1, characterized in that: The device also includes an anti-slip seat (3), the anti-slip seat (3) including a spring (31) and a contact head (32), one end of the spring (31) is fixedly connected to the capacitor connecting plate (2), and the other end is fixedly connected to the contact head (32), and the contact head (32) is movably connected to the surface wall of the test capacitor.

3. The generator no-load overvoltage protection device according to claim 2, characterized in that: One end of one side of the capacitance test seat (1) is rotatably connected to a parallel knife switch (4) via a rotating shaft (6), and the other end of one side of the capacitance test seat (1) is fixedly connected to a parallel gate seat (5), and the parallel knife switch (4) is adapted to the parallel gate seat (5).

4. The generator no-load overvoltage protection device according to claim 3, characterized in that: One end of one side of the capacitance test seat (1) is rotatably connected to a series knife switch (7) via a rotating shaft (6), and the other end of one side of the capacitance test seat (1) is fixedly connected to a series gate seat (8), and the series knife switch (7) is adapted to the series gate seat (8).

5. The generator no-load overvoltage protection device according to claim 4, characterized in that: A parallel test port (9) is fixedly mounted on one side of the capacitance test seat (1), and the parallel knife switch (4) and the parallel switch seat (5) are adapted to the parallel test port (9).

6. The generator no-load overvoltage protection device according to claim 5, characterized in that: A series test port (10) is fixedly mounted on one side of the capacitance test seat (1), and the series gate seat (8) and the parallel test port (9) are adapted to the series test port (10).

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