CN217769931U

CN217769931U - Generator rotor de-excitation device

Info

Publication number: CN217769931U
Application number: CN202220251381.0U
Authority: CN
Inventors: 黄冬华
Original assignee: ANHUI HUIKAI ELECTRIC CO LTD
Current assignee: ANHUI HUIKAI ELECTRIC CO LTD
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-11-08
Anticipated expiration: 2032-02-07

Abstract

The utility model discloses a generator rotor de-excitation device relates to the technical field that de-excites, for solving current generator de-excitation switch and lacking effectual insulation protection mechanism at the in-process that uses, the switch exposes under open environment, takes place to damage easily and causes the problem that influences normal de-excitation work operation. The inside of insulating rack is provided with the switch support frame, be provided with the magnetic switch component that goes out on the preceding terminal surface of switch support frame, the bottom of switch support frame is provided with the threading board, the inside of threading board is provided with the winding displacement hole, be provided with the rack port on the preceding terminal surface of insulating rack, the inside of rack port is provided with the airtight door that moves of port, all be provided with the activity inner rail on the upper and lower inner wall of rack port, the airtight one end that moves the door of port is provided with closed inserted block, be provided with corresponding slot on one side inner wall of rack port, the outside in winding displacement hole is provided with through-hole flip.

Description

Generator rotor de-excitation device

Technical Field

The utility model relates to a field suppression technical field specifically is a generator rotor field suppression device.

Background

When a generator has faults such as short circuit and the like, a relay protection action trips a generator breaker, and meanwhile, the generator needs to be de-magnetized rapidly, namely, magnetic field energy in a rotor winding of the generator is reduced to the minimum degree as soon as possible, a de-magnetizing switch refers to a switch for rapidly reducing current in an excitation loop, and the de-magnetizing switch is an electric appliance suitable for breaking current of the excitation loop of the motor, is high in inductance of the excitation loop and difficult in current cutting, so that a special de-magnetizing switch needs to be installed.

The existing generator de-excitation switch lacks an effective insulation protection mechanism in the use process, and the switch is exposed in the open environment and is easy to damage to influence the normal de-excitation operation, so that the de-excitation device for the generator rotor is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a generator rotor de-excitation device to the current generator de-excitation switch that proposes in solving above-mentioned background lacks effectual insulation protection mechanism at the in-process that uses, and the switch exposes under open environment, takes place to damage easily and causes the problem that influences normal de-excitation work operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a generator rotor de-excitation device, includes insulating rack, the inside of insulating rack is provided with switch support frame, be provided with de-excitation switch element on the preceding terminal surface of switch support frame, the bottom of switch support frame is provided with the threading board, the inside of threading board is provided with the winding displacement hole, be provided with the rack port on the preceding terminal surface of insulating rack, the inside of rack port is provided with the airtight door that moves of port, all be provided with the activity inner rail on the upper and lower inner wall of rack port, the airtight one end that moves the door of port is provided with closed inserted block, be provided with corresponding slot on one side inner wall of rack port, the outside in winding displacement hole is provided with through-hole flip, and through-hole flip passes through hinge swing joint with the winding displacement hole, the airtight upper end and the lower extreme that move the door of port all are provided with the inner rail connecting block, the inside of inner rail connecting block is provided with the gyro wheel, and the airtight door that moves of port passes through gyro wheel and activity inner rail swing joint.

Preferably, the inside in line hole is provided with the sponge floorcloth, sponge floorcloth and the inner wall viscose fixed connection in line hole, the central point of sponge floorcloth puts and is provided with the elasticity becket, elasticity becket and sponge floorcloth integrated into one piece setting.

Preferably, an insert inner threaded hole is formed in the closed insert, the insert inner threaded hole and the closed insert are integrally formed, a cross-connecting threaded hole is formed in one side of the insert inner threaded hole, and the cross-connecting threaded hole and the insulating cabinet are integrally formed.

Preferably, the cross-under screw hole and the inner screw hole of the insert are internally provided with a locking screw, one end of the locking screw is provided with a screwing cap, and the screwing cap and the locking screw are integrally formed.

Preferably, the top of the insulating cabinet is provided with a reinforcing top cover, and the reinforcing top cover and the insulating cabinet are integrally formed.

Preferably, one end of the port sealing sliding door is provided with a handle plate, and the handle plate and the port sealing sliding door are integrally formed.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a plurality of demagnetization switch components are loaded and are used in the inside of insulating rack, when needing to overhaul and maintain, take off locking screw and stimulate the handle board with the port airtight move the door pull open can, reach insulation protection and use the purpose of demagnetization switch, overcome current generator demagnetization switch and lack effectual insulation protection mechanism at the in-process that uses, the switch exposes under open-air environment, takes place to damage easily and causes the problem that influences normal demagnetization work and move.

2. Each de-excitation switch element can be connected with a generator, when the generator has short-circuit fault, the de-excitation switch consumes partial energy stored in the magnetic field in the arcing process, and limits the voltage in a proper range through a short arc, so that the magnetic field energy in the rotor winding of the generator is reduced to the minimum degree as soon as possible, and the purpose of high-capacity and high-efficiency de-excitation is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the generator rotor de-excitation device of the present invention;

FIG. 2 is a schematic view of the connection structure of the closed insert block and the corresponding slot of the present invention;

FIG. 3 is a schematic structural view of the inner rail connecting block of the present invention;

FIG. 4 is a schematic view of the structure of the threading board of the present invention;

in the figure: 1. an insulated cabinet; 2. a cabinet port; 3. a movable inner rail; 4. a port sealing sliding door; 5. A handle plate; 6. a switch carrier frame; 7. a field-extinguishing switching element; 8. a threading plate; 9. a reinforcing top cover; 10. closing the insert block; 11. a corresponding slot; 12. screwing the cap; 13. a bolt hole is formed in the insert block; 14. the screw hole is connected in a penetrating way; 15. locking the screw rod; 16. an inner rail connecting block; 17. a roller; 18. a wire arranging hole; 19. a sponge cloth liner; 20. a cord loop is loosened; 21. and the through hole is turned.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: a generator rotor de-excitation device comprises an insulation cabinet 1, wherein a switch supporting frame 6 is arranged inside the insulation cabinet 1, a de-excitation switch element 7 is arranged on the front end face of the switch supporting frame 6, a threading plate 8 is arranged at the bottom of the switch supporting frame 6, a wiring hole 18 is formed inside the threading plate 8, a cabinet port 2 is arranged on the front end face of the insulation cabinet 1, a port sealing moving door 4 is arranged inside the cabinet port 2, movable inner rails 3 are arranged on the upper inner wall and the lower inner wall of the cabinet port 2, a closed insertion block 10 is arranged at one end of the port sealing moving door 4, a corresponding insertion slot 11 is formed in the inner wall of one side of the cabinet port 2, a through hole flip 21 is arranged outside the wiring hole 18, the through hole flip 21 is movably connected with the wiring hole 18 through a hinge, inner rail connecting blocks 16 are arranged at the upper end and the lower end of the port sealing moving door 4, idler wheels 17 are arranged inside the inner rail connecting blocks 16, and the port sealing moving door 4 is movably connected with the movable inner rails 3 through the idler wheels 17.

Further, the inside in winding displacement hole 18 is provided with sponge floorcloth 19, sponge floorcloth 19 and the inner wall viscose fixed connection in winding displacement hole 18, is provided with elasticity becket bridle 20 on the central point of sponge floorcloth 19 puts, and elasticity becket bridle 20 sets up with sponge floorcloth 19 integrated into one piece, and the sponge floorcloth 19 of the inside setting in winding displacement hole 18 plays the effect of being convenient for fully seal winding displacement hole 18.

Further, the inside of closed inserted block 10 is provided with inserted block inner screw hole 13, and inserted block inner screw hole 13 sets up with closed inserted block 10 integrated into one piece, and one side of inserted block inner screw hole 13 is provided with cross-under screw 14, and cross-under screw 14 sets up with insulating rack 1 integrated into one piece, and the inserted block inner screw hole 13 that the inside of closed inserted block 10 set up plays the effect of the locking screw 15 installation of being convenient for.

Furthermore, a locking screw 15 is arranged inside the cross-connection screw hole 14 and the insert internal screw hole 13, a screwing cap 12 is arranged at one end of the locking screw 15, the screwing cap 12 and the locking screw 15 are integrally formed, and the cross-connection screw hole 14 and the locking screw 15 arranged inside the insert internal screw hole 13 play a role in locking the closed insert 10 and the cross-connection screw hole 14.

Further, the top of insulating rack 1 is provided with strengthens top cap 9, strengthens top cap 9 and sets up with insulating rack 1 integrated into one piece, and the enhancement top cap 9 that the top of insulating rack 1 set up plays the effect of strengthening insulating rack 1 overall structure intensity.

Further, the one end that the airtight door 4 that moves of port was provided with handle board 5, and handle board 5 and the airtight door 4 integrated into one piece that moves of port set up, and handle board 5 that the airtight one end that moves of port set up plays the effect of being convenient for pull the airtight door 4 that moves of port.

The working principle is as follows: when the device is used, the field suppression switch elements 7 are connected with a generator, a connecting line penetrates through and extends through the line arranging holes 18, each field suppression switch element 7 can be connected with one generator, when the generator has a short-circuit fault, the field suppression switch consumes partial energy stored in a magnetic field in an arc burning process, and the voltage is limited in a proper range through a short arc, so that the magnetic field energy in a rotor winding of the generator is reduced to the minimum degree as soon as possible, the purpose of high-capacity and high-efficiency field suppression is achieved, a plurality of field suppression switch elements 7 are loaded in the insulating cabinet 1 for use, when maintenance is needed, the locking screw 15 is taken down, the handle plate 5 is pulled, the port sealing moving door 4 is pulled open, the purpose of insulating protection using the field suppression switch is achieved, and the use work of a field suppression device of a generator rotor is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a generator rotor de-excitation device, includes insulating rack (1), its characterized in that: the inside of insulating rack (1) is provided with switch support frame (6), be provided with demagnetization switch element (7) on the preceding terminal surface of switch support frame (6), the bottom of switch support frame (6) is provided with threading board (8), the inside of threading board (8) is provided with winding displacement hole (18), be provided with rack port (2) on the preceding terminal surface of insulating rack (1), the inside of rack port (2) is provided with the airtight door (4) that moves of port, all be provided with movable inner rail (3) on the upper and lower inner wall of rack port (2), the airtight one end that moves door (4) of port is provided with closed inserted block (10), be provided with on one side inner wall of rack port (2) and correspond slot (11), the outside of winding displacement hole (18) is provided with through-hole flip (21), and through-hole flip (21) and winding displacement hole (18) pass through hinge swing joint, the airtight upper end and the lower extreme that move door (4) of port all are provided with interior rail connecting block (16), the inside of interior rail port is provided with gyro wheel (17), and airtight door (4) and pass through movable inner rail (17) and movable connection.

2. A generator rotor de-excitation device according to claim 1, characterized in that: the cable arranging device is characterized in that sponge laying cloth (19) is arranged inside the cable arranging hole (18), the sponge laying cloth (19) is fixedly connected with the inner wall of the cable arranging hole (18) in an adhesive mode, an elastic rope ring (20) is arranged at the center of the sponge laying cloth (19), and the elastic rope ring (20) and the sponge laying cloth (19) are integrally formed.

3. A generator rotor de-excitation device according to claim 1, characterized in that: the insulation cabinet is characterized in that an insert inner threaded hole (13) is formed in the closed insert (10), the insert inner threaded hole (13) and the closed insert (10) are integrally formed, a cross-connection threaded hole (14) is formed in one side of the insert inner threaded hole (13), and the cross-connection threaded hole (14) and the insulation cabinet (1) are integrally formed.

4. A generator rotor de-excitation device according to claim 3, wherein: the novel plug block is characterized in that locking screws (15) are mounted inside the cross-connecting screw holes (14) and the inner screw holes (13) of the plug blocks, screwing caps (12) are arranged at one ends of the locking screws (15), and the screwing caps (12) and the locking screws (15) are integrally formed.

5. A generator rotor de-excitation device according to claim 1, characterized in that: the top of the insulating cabinet (1) is provided with a reinforcing top cover (9), and the reinforcing top cover (9) and the insulating cabinet (1) are integrally formed.

6. A generator rotor de-excitation device according to claim 1, characterized in that: one end of the port sealing sliding door (4) is provided with a handle plate (5), and the handle plate (5) and the port sealing sliding door (4) are integrally formed.