Generator performance detection device

Abstract

The utility model discloses a generator performance detection device, and belongs to the technical field of generator detection equipment. According to the generator performance detection device of the utility model, the conductive member can conduct voltage and current signals for detection to the collector ring of the rotor so as to detect the electrical performance of the rotor winding, and the voltage and current signals between the excitation brush holder and the collector ring are isolated through the insulation brush holder and the insulation installation part. The insulation resistance of the rotor winding can be truly reflected, the accuracy of a detection result is improved, and the safety of workers and excitation equipment can be guaranteed; and meanwhile, the insulation brush holder and the excitation brush carrier are locked or unlocked through the brush holder locking piece, so that the insulation brush holder can be quickly disassembled and assembled, and the detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of generator detection equipment, in particular to a generator performance detection device. Background Art

[0002] The excitation methods of large steam turbine generators are divided into static excitation and rotating rectifier excitation. The static excitation method is widely used due to its characteristics of simple equipment maintenance, short shaft system, and fast excitation response speed.

[0003] The main components of the static excitation method are slip rings, brushes, and excitation busbars. Its working principle is that the excitation busbar transfers the DC power generated by the AVR (voltage regulator) device to the brushes through the stationary components. The brushes are in friction contact with the slip rings that rotate with the rotor, and the DC power is transferred to the slip rings through the brushes. The slip rings are electrically connected to the generator rotor windings to pass DC power into the generator rotor windings. Under the high-speed rotation of the rotor, a rotating magnetic field is formed in the stator chamber.

[0004] During the minor overhaul of power plant units, in order to detect the electrical performance of the generator rotor winding, it is necessary to inspect the main insulation, inter-turn insulation and electrical connection performance of the rotor winding. The inspection items include measuring the insulation resistance of the rotor winding in dynamic or static state, measuring the AC impedance and power loss in the chamber, rotor RSO test, and direct resistance test of the rotor winding.

[0005] There are three main approaches in the industry:

[0006] Method 1. Remove the flexible connection of the excitation brush holder or the excitation busbar, and then connect the test instrument to the slip ring to apply the test power to the rotor winding.

[0007] Method 2: The tester wears insulating gloves, holds the brush through the excitation brush holder and contacts the rotor slip ring, applies the test power to the brush, and conducts the test power to the rotor winding through the brush.

[0008] Method 3: Directly install a set of brushes on the excitation brush holder, apply the test power to the brushes, and conduct the test power to the rotor winding and the excitation power busbar through the brushes.

[0009] Among them, method 1 requires the removal of the excitation brush holder or flexible connection, which is time-consuming. Repeated disassembly and assembly will increase the stability of the electrical connection, which is not conducive to the safe operation of the equipment. Method 2 poses a greater risk of personal electric shock to the test personnel, especially during dynamic testing, when the test personnel come into contact with rotating parts with their bare hands, which poses a very high risk of mechanical injury. Method 3, because the brushes, excitation brush holder, and excitation power busbar are all electrically conductive, the insulation test result is the insulation resistance of the excitation power busbar and rotor winding in parallel, which cannot truly reflect the insulation resistance of the rotor winding. In addition, the test may cause damage to other components in the excitation power supply. Utility Model Content

[0010] The purpose of the utility model is to provide a generator performance detection device, which can not only improve the accuracy and detection efficiency of the detection results of the rotor winding electrical performance, but also ensure the safety of workers and excitation equipment.

[0011] To achieve the above objectives, the following technical solutions are provided:

[0012] A generator performance detection device, wherein the generator includes an excitation brush holder and a rotor rotatably mounted on the excitation brush holder, wherein a slip ring is sleeved on the outer side of the rotor and can rotate with the rotor; the generator performance detection device includes:

[0013] an insulating brush holder, wherein the insulating brush holder is provided with an insulating mounting portion for mounting a brush, and when the brush is mounted on the insulating mounting portion, one end of the brush can abut against the slip ring;

[0014] A brush holder locking piece, used to lock or unlock the insulating brush holder and the excitation brush holder;

[0015] A conductive member is fixed to the insulating brush holder and is used for electrically connecting to the brush.

[0016] As a preferred technical solution of the above-mentioned generator performance detection device, the generator performance detection device further includes an elastic member, which is configured to apply a biasing force to the brush to make it approach the slip ring along the radial direction of the rotor.

[0017] As an optimal technical solution of the above-mentioned generator performance detection device, the generator performance detection device also includes at least one brush, at least one of the brushes is installed on the insulating mounting portion, one end of at least one of the brushes can abut against the slip ring, and at least one of the brushes is electrically connected to the conductive member.

[0018] As a preferred technical solution of the above-mentioned generator performance detection device, the brush is a carbon brush or a copper brush.

[0019] As a preferred technical solution of the above-mentioned generator performance detection device, the brush holder locking member includes:

[0020] a rotating shaft rotatably disposed on the insulating brush holder, wherein the rotating shaft includes a first end and a second end in a radial direction of the rotor, wherein the first end is closer to the rotor than the second end;

[0021] a first limiting portion and a second limiting portion, wherein the first limiting portion is detachably provided at the first end, and the second limiting portion is fixedly provided at the second end, and both the first limiting portion and the second limiting portion are capable of rotating along the rotating shaft so that the first limiting portion and the second limiting portion respectively abut against opposite sides of the excitation brush holder along the radial direction of the rotor, or the first limiting portion and the second limiting portion are separated from the excitation brush holder;

[0022] A handle is fixedly arranged at the second end.

[0023] As a preferred technical solution of the above-mentioned generator performance detection device, the insulating brush holder is made of insulating material; and / or,

[0024] The handle is made of insulating material; and / or,

[0025] The second limiting portion is made of insulating material.

[0026] As a preferred technical solution of the above-mentioned generator performance detection device, the conductive member is provided with an electrical connection portion, and the electrical connection portion is extended outward from the conductive member.

[0027] As an optimal technical solution for the above-mentioned generator performance detection device, the insulating mounting portion includes mounting grooves arranged one-to-one corresponding to the brushes, the brushes can be inserted into the corresponding mounting grooves, and one end of the brush is located outside the corresponding mounting groove and is used to abut against the slip ring.

[0028] As an optimal technical solution of the above-mentioned generator performance detection device, the generator performance detection device also includes a conductive locking piece, and the brush is provided with a cable, one end of the cable is fixedly connected to the brush, and the other end is fixedly connected to the conductive piece through the conductive locking piece.

[0029] As a preferred technical solution of the above-mentioned generator performance detection device, the insulating brush holder is further provided with an insulating limit portion, which can abut against the excitation brush holder to prevent the insulating brush holder from moving relative to the excitation brush holder.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The generator performance detection device of the present invention has a conductive part that can conduct the voltage and current signals for detection to the slip ring of the rotor, thereby detecting the electrical performance of the rotor winding, and isolating the voltage and current signals between the excitation brush holder and the slip ring through the insulating brush holder and the insulating mounting portion, which can not only truly reflect the insulation resistance of the rotor winding and improve the accuracy of the detection results, but also ensure the safety of the staff and the excitation equipment; at the same time, the insulating brush holder and the excitation brush holder are locked or unlocked by the brush holder locking member, which facilitates the rapid disassembly and assembly of the insulating brush holder, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a generator in an embodiment of the present utility model;

[0033] Figure 2 This is a first structural diagram of the generator performance detection device in an embodiment of the present utility model;

[0034] Figure 3 This is a second structural diagram of the generator performance detection device in an embodiment of the present utility model;

[0035] Figure 4 This is a third structural diagram of the generator performance detection device in an embodiment of the present utility model;

[0036] Figure 5 It is a partial schematic diagram of the generator performance detection device in an embodiment of the present utility model.

[0037] Reference numerals:

[0038] 100. Generator; 101. Excitation brush holder; 1011. Brush holder slot; 102. Collector ring; 1. Insulating brush holder; 11. Insulating mounting portion; 12. Limiting portion; 13. Guide cylinder; 2. Brush holder locking member; 21. Rotating shaft; 22. First limiting portion; 23. Second limiting portion; 24. Handle; 3. Conductive member; 31. Electrical connection portion; 4. Brush; 41. Cable; 5. Conductive locking member; 6. Elastic member. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0043] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] like Figure 1-5 As shown, this embodiment provides a generator performance detection device for detecting the electrical performance of the rotor winding of the generator 100.

[0047] The generator 100 includes an excitation brush holder 101 and a rotor rotatably mounted on the excitation brush holder 101. A slip ring 102 is sleeved on the outer side of the rotor and can rotate with the rotor. It is understood that the slip ring 102 is electrically connected to the rotor winding for testing.

[0048] The generator performance detection device includes an insulating brush holder 1, a brush holder locking piece 2 and a conductive piece 3. The insulating brush holder 1 is provided with an insulating mounting portion 11 for mounting a brush 4. When the brush 4 is mounted on the insulating mounting portion 11, one end of the brush 4 can abut against the slip ring 102; the brush holder locking piece 2 is used to lock or unlock the insulating brush holder 1 and the excitation brush holder 101; the conductive piece 3 is fixed to the insulating brush holder 1, and the conductive piece 3 is used to be electrically connected to the brush 4.

[0049] It should be noted that the excitation brush holder 101 of the generator 100 has a brush holder slot 1011. When the generator 100 is operating normally, the brush holder provided with the generator 100 is installed in the brush holder slot 1011. When the electrical performance of the rotor winding of the generator 100 is tested, the insulating brush holder 1 of this embodiment can be installed in the brush holder slot 1011.

[0050] In the generator performance detection device of this embodiment, the conductive member 3 can conduct the voltage and current signals for detection to the slip ring 102 electrically connected to the rotor winding, and then pass direct current to the rotor winding through the slip ring 102 to detect the electrical performance of the rotor winding, and isolate the voltage and current signals between the excitation brush holder 101 and the slip ring 102 through the insulating brush holder 1 and the insulating mounting portion 11, which can not only truly reflect the insulation resistance of the rotor winding and improve the accuracy of the detection results, but also ensure the safety of the staff and the excitation equipment; at the same time, the insulating brush holder 1 and the excitation brush holder 101 are locked or unlocked by the brush holder locking member 2, which facilitates the quick disassembly and assembly of the insulating brush holder 1, thereby improving the detection efficiency.

[0051] In this embodiment, the generator performance testing device further includes multiple brushes 4 , each mounted on an insulating mounting portion 11 . One end of each brush 4 can abut against a slip ring 102 , and each brush 4 is electrically connected to the conductive member 3 . Providing multiple brushes 4 prevents poor contact of one brush 4 , which could cause a short circuit and affect testing. Of course, in other embodiments, a single brush 4 may be provided, and this is not a limitation here.

[0052] It should be noted that, in this embodiment, the generator performance detection device is separately configured with a brush 4 specifically for detection, and there is no need to disassemble the brush 4 of the generator 100, which is conducive to further improving the detection efficiency and avoiding disassembly of the brush 4 of the generator 100, which affects the installation stability of the brush 4.

[0053] Of course, in other embodiments, the brush 4 provided with the generator 100 can also be used. When performing inspection, the brush 4 provided with the generator 100 is simply removed from the brush holder provided with the generator 100, and the removed brush 4 is installed on the insulating mounting portion 11 of the insulating brush holder 1. This eliminates the need to separately provide a brush 4 specifically for inspection, thereby reducing inspection costs.

[0054] Optionally, the brush 4 is a carbon brush. Carbon brushes have the advantages of good electrical conductivity and low cost. Of course, in other embodiments, the brush 4 can also be a copper brush. Copper brushes have better electrical conductivity and wear resistance than carbon brushes, but are more expensive.

[0055] Optionally, the conductive member 3 is provided with an electrical connection portion 31 , which extends outward from the conductive member 3 , thereby facilitating connection of the test instrument and making operation convenient.

[0056] Specifically, the electrical connection portion 31 is a protrusion provided on the conductive member 3 , and a wiring structure such as a wire clamp of the test instrument can be directly clamped on the protrusion to facilitate wiring.

[0057] Specifically, the conductive member 3 is a metal busbar, which facilitates electrical connection between the cable 41 and the conductive member 3. Exemplarily, the conductive member 3 is a copper busbar, which has good conductivity and is conducive to improving the accuracy of the detection result.

[0058] Optionally, the generator performance testing device further includes a conductive locking member 5. The brush 4 is provided with a cable 41. One end of the cable 41 is fixedly connected to the brush 4, and the other end is locked or unlocked with the conductive member 3 via the conductive locking member 5. The conductive locking member 5 can improve the connection stability between the cable 41 and the conductive member 3, thereby reducing deviations during the RSO test and DC resistance test of the generator 100 rotor, and avoiding problems such as poor contact of the test conductive circuit due to loose cable 41, which could result in unqualified test results.

[0059] Specifically, the conductive locking member 5 is a screw that is threadedly connected to the conductive member 3 and, through the screw head, compresses and secures the cable 41 to the conductive member 3. Screws offer the advantages of simple structure, ease of operation, and low cost. Of course, in other embodiments, the conductive locking member 5 can also be a conductive clip that clamps the cable 41 and the conductive member 3, further improving the stability of the connection between the cable 41 and the conductive member 3.

[0060] Optionally, the insulating brush holder 1 is further provided with an insulating stopper 12, which can abut against the excitation brush holder 101 to prevent the insulating brush holder 1 from moving relative to the excitation brush holder 101. This arrangement can improve the installation stability of the insulating brush holder 1, thereby improving the installation stability of the brush 4, and thus improving the accuracy of the test results.

[0061] Specifically, the insulating limit portion 12 is an inclined surface provided on both sides of the insulating brush holder 1, which abuts against the inner wall of the brush holder groove 1011 of the excitation brush holder 101, and then the insulating brush holder 1 is locked to the excitation brush holder 101 through the brush holder locking member 2, thereby preventing the insulating brush holder 1 from moving relative to the excitation brush holder 101.

[0062] Optionally, the insulating mounting portion 11 includes mounting grooves corresponding to the brushes 4. The brushes 4 can be inserted into the corresponding mounting grooves, and one end of the brush 4 is located outside the corresponding mounting groove and is used to abut against the slip ring 102. This arrangement facilitates the installation of the brushes 4 and helps improve detection efficiency.

[0063] It is understandable that when multiple brushes 4 are provided, multiple mounting slots are also provided, and one brush 4 is inserted into one mounting slot.

[0064] Specifically, the insulating mounting portion 11 is a brush box fixedly mounted on one side of the insulating brush holder 1 . The brush box includes a plurality of the aforementioned mounting grooves, which are sequentially arranged along the axial direction of the rotor.

[0065] It should be noted that, in this embodiment, the structure of the insulating brush holder 1 and the insulating mounting portion 11 is similar to the structure of the brush holder provided with the generator 100 and the brush box provided on the brush holder for mounting the brush 4, which is beneficial to reducing the development cost of the generator performance detection device.

[0066] Optionally, the generator performance detection device also includes an elastic member 6, which is configured to apply a biasing force to the brush 4 so that it approaches the collector ring 102 along the radial direction of the rotor, and then press the brush 4 to the surface of the collector ring 102 through the elastic member 6, thereby better reducing the contact resistance and improving the test accuracy of the rotor RSO test and DC resistance.

[0067] Exemplarily, the elastic member 6 is a constant pressure spring, so that the biasing force applied by the elastic member 6 to the brush 4 to make it close to the slip ring 102 along the radial direction of the rotor can be constant, ensuring stable contact between the brush 4 and the slip ring 102, which is conducive to further improving the accuracy of the detection results.

[0068] Specifically, the mounting slot is a through slot, the brush 4 is inserted into the mounting slot, and both ends of the brush 4 extend out of the mounting slot. The constant pressure spring abuts against one end of the brush 4 to make the other end of the brush 4 press against the slip ring 102 .

[0069] Of course, the elastic member 6 can also be other springs, or other structural members that can generate elastic force, which is not limited here.

[0070] Optionally, the brush holder locking member 2 includes a rotating shaft 21, a first limiting portion 22, a second limiting portion 23 and a handle 24. The rotating shaft 21 is rotatably provided on the insulating brush holder 1. Along the radial direction of the rotor, the rotating shaft 21 includes a first end and a second end, and the first end is closer to the rotor than the second end; the first limiting portion 22 is detachably provided at the first end, and the second limiting portion 23 is fixed at the second end. Both the first limiting portion 22 and the second limiting portion 23 can rotate with the rotating shaft 21, so that the first limiting portion 22 and the second limiting portion 23 respectively abut against the opposite sides of the excitation brush holder 101 along the radial direction of the rotor, or the first limiting portion 22 and the second limiting portion 23 are separated from the excitation brush holder 101; the handle 24 is fixed at the second end. With this arrangement, a worker can rotate the rotating shaft 21 by holding the handle 24, so that the first limiting portion 22 and the second limiting portion 23 can respectively abut against opposite sides of the excitation brush holder 101 along the radial direction of the rotor, thereby clamping the excitation brush holder 101 through the first limiting portion 22 and the second limiting portion 23, thereby locking the insulating brush holder 1 to the excitation brush holder 101. A worker can also rotate the rotating shaft 21 by holding the handle 24 to separate the first limiting portion 22 and the second limiting portion 23 from the excitation brush holder 101, thereby releasing the lock, thereby facilitating the disassembly and assembly of the insulating brush holder 1 and improving detection efficiency.

[0071] It should be noted that the first limiting portion 22 is detachably provided at the first end to facilitate assembly of the rotating shaft 21 and the insulating brush holder 1. Specifically, the insulating brush holder 1 is provided with a through hole, and one end of the rotating shaft 21 passes through the through hole and is threadedly connected to the first limiting portion 22.

[0072] Specifically, the second limiting portion 23 is a rectangular plate, which can play a protective role and ensure the safety of workers.

[0073] Specifically, the first limiting portion 22 is a rectangular locking block, and the excitation brush holder 101 is provided with a rectangular groove corresponding to the first limiting portion 22. When the rotating shaft 21 is rotated so that the length direction of the rectangular locking block is parallel to the length direction of the rectangular groove, the rectangular locking block can pass through the rectangular groove so that the rectangular locking block is located on the side of the excitation brush holder 101 close to the rotor, and then the rotating shaft 21 is continued to be rotated so that the length direction of the rectangular locking block is perpendicular to the length direction of the rectangular groove. At this time, the rectangular locking block can no longer be retracted into the rectangular groove, so that the rectangular locking block can be locked on the side of the excitation brush holder 101 close to the rotor, that is, the rectangular locking block and the rectangular plate are respectively abutted against the opposite sides of the excitation brush holder 101 along the radial direction of the rotor.

[0074] Optionally, the generator performance detection device further includes a rotating support, and the rotating shaft 21 is rotatably connected to the insulating brush holder 1 via the rotating support, thereby improving the smoothness of the rotation of the rotating shaft 21 and improving the operating convenience of the generator performance detection device.

[0075] Exemplarily, the rotating support member is a bearing. Specifically, two bearings are provided, and the two bearings are respectively located at both ends of the rotating shaft 21. Furthermore, guide cylinders 13 are fixed on both sides of the insulating brush holder 1, and the two bearings are respectively installed in the two guide cylinders 13.

[0076] Optionally, the insulating brush holder 1 is made of insulating material, which is beneficial to improving the insulation effect of the insulating brush holder 1 and thus improving the accuracy of the detection result. Of course, in other embodiments, the insulating brush holder 1 can also be provided with an insulating layer on its outer surface to achieve the insulation effect.

[0077] Optionally, the insulating brush holder 1 and the insulating mounting portion 11 are integrally formed, which is easy to manufacture.

[0078] Specifically, the insulating brush holder 1 , the guide cylinder 13 and the insulating mounting portion 11 are integrally formed by epoxy resin casting.

[0079] Optionally, the handle 24 is made of insulating material, thereby preventing the worker from getting an electric shock when holding the handle 24 , thereby ensuring the worker's safety.

[0080] Optionally, the second limiting portion 23 is made of insulating material. Since the second limiting portion 23 is exposed outside the excitation brush holder 101, such a configuration is beneficial to further prevent workers from accidentally touching the second limiting portion 23, thereby improving safety.

[0081] Optionally, the shaft 21, the second limiting portion 23 and the handle 24 are integrally formed by epoxy resin casting, and the first limiting portion 22 is threadedly connected to the shaft 21 after being cast by epoxy resin. This arrangement can improve the insulation of the brush holder locking member 2 and provide higher safety.

[0082] For example, the method for using the generator performance detection device of this embodiment is as follows:

[0083] When the rotor winding needs to be inspected, the brush 4 is first installed on the insulating mounting portion 11, and the cable 41 of the brush 4 is fixed to the conductive member 3 by screws to electrically connect the brush 4 with the conductive member 3. Then, the insulating brush holder 1 is inserted into the brush holder slot 1011 of the excitation brush holder 101, and the staff rotates the shaft 21 by holding the handle 24, so that the first limit portion 22 and the second limit portion 23 can respectively abut against the opposite sides of the excitation brush holder 101 along the radial direction of the rotor, so as to clamp the excitation brush holder 101 through the first limit portion 22 and the second limit portion 23, and then lock the insulating brush holder 1 with the excitation brush holder 101, so that the brush 4 is tightly against the surface of the slip ring 102. Then, the wire clamp of the test instrument is clamped on the electrical connection portion 31 of the conductive member 3 to achieve electrical connection between the conductive member 3 and the test instrument, thus completing the installation of the generator performance detection device.

[0084] It should be noted that since the generator 100 is provided with two slip rings 102 and two excitation brush holders 101, namely, a positive slip ring and a negative slip ring, and a positive excitation brush holder 101 and a negative excitation brush holder 101, when testing the electronic winding, two generator performance testing devices can be respectively installed in the brush holder slots 1011 of the two excitation brush holders 101, so that the brushes 4 of the two generator performance testing devices are respectively in contact with the two slip rings 102, and then the testing can begin.

[0085] The generator performance detection device of this embodiment can complete the purpose of rotor winding electrical performance testing without disassembling the excitation brush holder 101 or the excitation busbar connection components of the generator 100, and thus does not require major repairs to the generator 100 before grid connection, saving manpower and material resources.

[0086] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A generator performance detection device, wherein the generator (100) comprises an excitation brush holder (101) and a rotor rotatably mounted on the excitation brush holder (101), wherein a slip ring (102) is sleeved on the outer side of the rotor, and the slip ring (102) is capable of rotating with the rotor; and wherein: The generator performance detection device comprises: An insulating brush holder (1), the insulating brush holder (1) being provided with an insulating mounting portion (11) for mounting a brush (4), and when the brush (4) is mounted on the insulating mounting portion (11), one end of the brush (4) can abut against the collector ring (102); A brush holder locking member (2), the brush holder locking member (2) being used to lock or unlock the insulating brush holder (1) and the excitation brush holder (101); A conductive member (3), the conductive member (3) being fixed to the insulating brush holder (1), and the conductive member (3) being used for being electrically connected to the brush (4).

2. The generator performance detection device according to claim 1, characterized in that: The generator performance detection device further comprises an elastic member (6), wherein the elastic member (6) is configured to apply a biasing force to the brush (4) so ​​as to move the brush (4) closer to the collector ring (102) in the radial direction of the rotor.

3. The generator performance detection device according to claim 1, characterized in that: The generator performance detection device further includes at least one brush (4), at least one brush (4) is mounted on the insulating mounting portion (11), one end of at least one brush (4) is capable of abutting against the collector ring (102), and at least one brush (4) is electrically connected to the conductive member (3).

4. The generator performance detection device according to claim 3, characterized in that: The brush (4) is a carbon brush or a copper brush.

5. The generator performance detection device according to claim 1, characterized in that: The brush holder locking member (2) comprises: A rotating shaft (21), the rotating shaft (21) being rotatably disposed on the insulating brush holder (1), and comprising a first end and a second end along the radial direction of the rotor, wherein the first end is closer to the rotor than the second end; a first limiting portion (22) and a second limiting portion (23), wherein the first limiting portion (22) is detachably provided at the first end, and the second limiting portion (23) is fixedly provided at the second end, and both the first limiting portion (22) and the second limiting portion (23) can rotate along the rotating shaft (21), so that the first limiting portion (22) and the second limiting portion (23) respectively abut against opposite sides of the excitation brush holder (101) along the radial direction of the rotor, or the first limiting portion (22) and the second limiting portion (23) are separated from the excitation brush holder (101); A handle (24) is fixedly arranged at the second end.

6. The generator performance detection device according to claim 5, characterized in that: The insulating brush holder (1) is made of insulating material; and / or, The handle (24) is made of insulating material; and / or, The second limiting portion (23) is made of insulating material.

7. The generator performance detection device according to claim 1, characterized in that: The conductive member (3) is provided with an electrical connection portion (31), and the electrical connection portion (31) is extended outward from the conductive member (3).

8. The generator performance detection device according to claim 1, characterized in that: The insulating mounting portion (11) includes mounting grooves corresponding to the brushes (4) one by one, the brushes (4) can be inserted into the corresponding mounting grooves, and one end of the brush (4) is located outside the corresponding mounting groove and is used to abut against the collector ring (102).

9. The generator performance detection device according to claim 1, characterized in that: The generator performance detection device further comprises a conductive locking member (5), the brush (4) is provided with a cable (41), one end of the cable (41) is fixedly connected to the brush (4), and the other end is fixedly connected to the conductive member (3) via the conductive locking member (5).

10. The generator performance detection device according to claim 1, characterized in that: The insulating brush holder (1) is further provided with an insulating limit portion (12), and the insulating limit portion (12) is capable of abutting against the excitation brush holder (101) to prevent the insulating brush holder (1) from moving relative to the excitation brush holder (101).

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