CN206076924U

CN206076924U - A kind of 330kV transformer neutral point earth protection devices

Info

Publication number: CN206076924U
Application number: CN201620991663.9U
Authority: CN
Inventors: 汪春祥; 郑云; 刘立忠; 周刚; 郑军
Original assignee: SHENDA ELECTRIC GROUP CO Ltd
Current assignee: SHENDA ELECTRIC GROUP CO Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-04-05
Anticipated expiration: 2026-08-30

Abstract

The utility model discloses a kind of 330kV transformer neutral point earth protection devices; including casing; the side of the casing is communicated with inlet wire pipe; the side of the casing and controller is installed with the lower section of inlet wire pipe; the opposite side of the casing is communicated with outlet-pipe; the bottom of the cabinets cavity is installed with motor rack, and the first motor is installed with the top of the motor rack, and the output shaft of first motor is installed with flabellum.The 330kV transformer neutral point earth protection devices; by the setting to shell and housing; the effect for facilitating transformer neutral point earth protection device switching action automatization is reached; so as to facilitate the switching action to transformer neutral point earth protection device; the process of folding is convenient and swift; it is safe and reliable, safety during transformer neutral point earth protection device switching action is substantially increased, the service efficiency of transformer neutral point earth protection device is substantially increased.

Description

A kind of 330kV transformer neutral point earth protection devices

Technical field

This utility model is related to electrical equipment technical field, specially a kind of 330kV transformer neutral points ground protection dress Put.

Background technology

Transformator is that changing the device of alternating voltage, main member is primary coil, secondary using the principle of electromagnetic induction Level coil and iron core, major function have：Voltage transformation, current transformation, impedance conversion, isolation and voltage stabilizing etc., can be divided by purposes For：Power transformer and special transformer (electric furnace change, rectification change, power frequency testing transformer, pressure regulator, mining change, audio frequency transformation Device, intermediate-frequency transformer, high frequency transformer, impact transformator, instrument transformer, electronic transformer, reactor and transformer etc.).

Transformer combination formula grounding protection device of neutral point is exclusively used in power transformer neutral point, to realize that transformator is neutral Two kinds of different methods of operation of the operation of point ground connection or earth-free operation；So as to avoid due to the system failure, cause transformator neutral Point voltage is raised and causes the infringement to transformator, this product to be widely used in the fields such as electric power, metallurgy, petrochemical industry, building and environmental protection.

But the switching action of transformer neutral point earth protection device in the market is relatively complicated, mostly using handss It is dynamic that folding, the use of the person of being not convenient to use are carried out to protection device, while the safety of protection device has been greatly reduced, so as to Reduce the service efficiency of protection device.

Utility model content

(1) technical problem for solving

For the deficiencies in the prior art, this utility model provides a kind of 330kV transformer neutral point earth protection devices, Solve the switch closed-ended question of 330kV transformer neutral point earth protection devices.

(2) technical scheme

To realize object above, this utility model is achieved by the following technical programs：A kind of 330kV transformators are neutral Point earth protective device, including casing, the side of the casing are communicated with inlet wire pipe, the side of the casing and are located at inlet wire pipe Lower section in be installed with controller, the opposite side of the casing is communicated with outlet-pipe, and the bottom of the cabinets cavity is fixed Motor rack is installed, the first motor, the output shaft fixed installation of first motor at the top of the motor rack, is installed with There is a flabellum, the both sides of the cabinet wall and fixed plate is fixedly connected with above the first motor, at the top of the fixed plate Side be installed with insulation board, the both sides at the top of the insulation board are symmetrically installed with porcelain bottle insulators, the porcelain insulator The top of son is installed with conducting block, and the top of the cabinets cavity is installed with power set from left to right successively and removes Wet device, is installed with top board at the top of the casing, the controller is electrically connected with the first motor and dehumidifier respectively.

Preferably, the power set include shell, and collets are installed with the top of the shell inner cavity, described exhausted The bottom of edge block is installed with gripper shoe, and the front surface of the gripper shoe offers the first chute, sets in first chute The tooth bar being adapted with the first chute is equipped with, the bottom of the tooth bar is installed with the first insulation sleeve, first insulation sleeve First iron core is installed with inside, the bottom of the cabinets cavity is installed with bracing frame, and the top of support frame as described above is fixed Workbench is installed, the second motor, the output shaft fixed installation of second motor at the top of the workbench, is installed with There is gear, the wheel and rack is intermeshed, the side of the shell offers the through hole for the movement of the first iron core, the control Device processed and the second motor are electrically connected with.

Preferably, the power set include housing, and the both sides of the housing cavity are symmetrically installed with the second chute, described The shifting bar being adapted with the second chute is provided with second chute, the bottom of the shifting bar is installed with the 3rd motor, described The output shaft of the 3rd motor is installed with screw mandrel, is arranged with the nut being adapted with screw mandrel, in the housing on the screw mandrel The both sides in chamber and dividing plate is installed with below the second chute, the screw mandrel runs through dividing plate away from one end of the 3rd motor And the outside of dividing plate is extended to, the bottom of the nut is fixedly connected with the top of dividing plate, and the bottom of the screw mandrel is fixedly connected There is the second insulation sleeve, in second insulation sleeve, be installed with the second iron core, the side of the housing is offered for the second ferrum The opening of core movement, the controller and the 3rd motor are electrically connected with.

Preferably, the first limited block is installed with the top of the tooth bar.

Preferably, the side of the bottom of second chute is installed with the second limited block.

(3) beneficial effect

This utility model provides a kind of 330kV transformer neutral point earth protection devices.Possesses following beneficial effect：

(1), the 330kV transformer neutral point earth protection devices, by the setting to shell and housing, have reached convenience The effect of transformer neutral point earth protection device switching action automatization, so as to facilitate to transformer neutral point ground protection The switching action of device, the process of folding are convenient and swift, safe and reliable, facilitate the use of user, while also greatly improving Safety during transformer neutral point earth protection device switching action, substantially increases transformer neutral point ground protection dress The service efficiency put.

(2), the 330kV transformer neutral point earth protection devices, by the setting to the first motor and flabellum, reach The effect radiated by casing, so that transformer neutral point earth protection device in the course of the work also will not be because of high temperature shadow The normal work of transformer neutral point earth protection device is rung, so as to improve the service efficiency of device, change is also substantially increased The safety of depressor grounding protection device of neutral point.

Description of the drawings

Fig. 1 is this utility model structural representation；

Schematic internal views of the Fig. 2 for this utility model structural housing；

Schematic internal views of the Fig. 3 for this utility model structure housing.

In figure：1 casing, 2 inlet wire pipes, 3 controllers, 4 outlet-pipes, 5 motor racks, 6 first motors, 7 flabellums, 8 fixed plates, 9 Insulation board, 10 porcelain bottle insulators, 11 conducting blocks, 12 power set, 13 dehumidifiers, 14 top boards, 15 shells, 16 collets, 17 Fagging, 18 first chutes, 19 tooth bars, 20 first insulation sleeves, 21 first iron cores, 22 bracing frames, 23 workbench, 24 second motors, 25 gears, 26 second limited blocks, 27 housings, 28 second chutes, 29 move bars, 30 the 3rd motors, 31 screw mandrels, 32 nuts, 33 dividing plates, 34 second insulation sleeves, 35 second iron cores, 36 first limited blocks.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.

Fig. 1-3 are referred to, this utility model provides a kind of technical scheme：A kind of 330kV transformer neutral points ground protection Device, including casing 1, the side of casing 1 are communicated with inlet wire pipe 2, the setting of inlet wire pipe 2, the entrance of supply lines, and the one of casing 1 Side and controller 3 is installed with the lower section of inlet wire pipe 2, the opposite side of casing 1 is communicated with outlet-pipe 4, outlet-pipe 3 Setting facilitates electric wire and goes out from casing 1, and the bottom of 1 inner chamber of casing is installed with motor rack 5, and the top of motor rack 5 is solid Dingan County is equipped with the first motor 6, and the setting of motor rack 5 facilitates the fixation to the first motor 6, and the output shaft of the first motor 6 is fixed Flabellum 7 is installed, the setting of the first motor 6 has reached the effect that power is provided to flabellum 7, the both sides of 1 inwall of casing and is located at The top of the first motor 6 is fixedly connected with fixed plate 8, and the side at the top of fixed plate 8 is installed with insulation board 9, and insulation board 9 is pushed up The both sides in portion are symmetrically installed with porcelain bottle insulators 10, and the top of porcelain bottle insulators 10 is installed with conducting block 11, porcelain insulator The setting of son 10, facilitates the effect that conducting block 11 and casing 1 insulate, and the top of 1 inner chamber of casing is fixed from left to right successively Power set 12 and dehumidifier 13 are installed, dehumidifier 13 is arranged, and has reached the effect being dried to air in casing 1, prevent Only in casing 1, there was dampness in the air, the top of casing 1 be installed with top board 14, controller 3 respectively with the first motor 6 and dehumidifying Device 13 is electrically connected with.

Embodiment one：Fig. 2 is refer to, power set 12 include shell 15, be installed with the top of 15 inner chamber of shell absolutely Edge block 16, the setting of collets 16 have reached the effect for preventing shell 15 powered, and the bottom of collets 16 is installed with support Plate 17, the front surface of gripper shoe 17 offer the first chute 18, are provided with what is be adapted with the first chute 18 in the first chute 18 Tooth bar 19, the setting of the first chute 18 facilitate the movement of tooth bar 19, and the top of tooth bar 19 is installed with the first limited block 36, the setting of the first limited block 36, having reached carries out spacing effect to tooth bar 19, and the bottom of tooth bar 19 is installed with first Insulation sleeve 20, the setting of the first insulation sleeve 20 have reached the effect for preventing tooth bar 19 powered, fixed installation in the first insulation sleeve 20 There is the first iron core 21, the setting of the first iron core 21 has reached the effect of conduction, and the bottom of 1 inner chamber of casing is installed with support Frame 22, the top of bracing frame 22 are installed with workbench 23, and the top of workbench 23 is installed with the second motor 24, support The setting of frame 22 and workbench 23, is preferably fixed the second motor 24, the fixation of the second motor 24 is more consolidated, the The output shaft of two motors 24 is installed with gear 25, and gear 25 is intermeshed with tooth bar 19, and the side of shell 15 offers confession The through hole of the movement of the first iron core 21, controller 3 is electrically connected with the second motor 24, and when deployed, operational control device 3 controls the One motor 6, dehumidifier 13 and the second motor 24 work, and the first motor 6 drives flabellum 7 to rotate, and dehumidifier 13 is removed to casing 1 Wet, the second motor 24 is rotated with moving gear 25, and gear 25 is by the cooperation with tooth bar 19, the first iron core with 19 bottom of carry-over bar 21 movements, when the first iron core 21 is moved up, the first iron core 21 is contacted with conducting block 11, and protection device is opened, on the contrary protection Device is closed, when without using when, operational control device 3, the first motor 6 of control, dehumidifier 13 and the second motor 24 quit work.

Embodiment two：Fig. 3 is refer to, power set 12 include housing 27, and the both sides of 27 inner chamber of housing are symmetrically installed with Two chutes 28, the side of the bottom of the second chute 28 are installed with the second limited block 26, are provided with and the in the second chute 28 The shifting bar 29 that two chutes 28 are adapted, the setting of the second chute 28 facilitate the movement for moving bar 29, so as to also carry out to moving bar 29 Spacing, the setting of limited block 26 prevents shifting bar 29 from coming off during movement, so as to carry out spacing, shifting bar 29 to moving bar 29 Bottom be installed with the 3rd motor 30, the output shaft of the 3rd motor 30 is installed with screw mandrel 31, and the 3rd motor 30 sets Put, the rotation for screw mandrel 31 provides power, on screw mandrel 31, be arranged with the nut 32 being adapted with screw mandrel 31,27 inner chamber of housing Both sides and dividing plate 33 is installed with positioned at the lower section of the second chute 28, screw mandrel 31 runs through dividing plate away from one end of the 3rd motor 30 33 and the outside of dividing plate 33 is extended to, the bottom of nut 32 is fixedly connected with the top of dividing plate 33, and the setting of dividing plate 33 reaches The effect being fixed to nut 32, the bottom of screw mandrel 31 are fixedly connected with the second insulation sleeve 34, fixed in the second insulation sleeve 34 Second iron core 35 is installed, the side of housing 27 offers the opening for the movement of the second iron core 35, controller 3 and the 3rd motor 30 It is electrically connected with, when deployed, operational control device 3, the first motor 6 of control, dehumidifier 13 and the 3rd motor 30 work, the 3rd motor 30 cooperations for passing through screw mandrel and nut drive the movement of the 3rd motor, so as to drive the second iron core to move, when the second iron core decline with Conducting block is contacted, and protection device is opened, on the contrary protection device closure, when without using when, operational control device 3, control are first electric Machine 6, dehumidifier 13 and the 3rd motor 30 quit work.

In sum, the 330kV transformer neutral point earth protection devices, by the setting to shell 15 and housing 27, The effect for facilitating transformer neutral point earth protection device switching action automatization has been reached, it is neutral to transformator so as to facilitate The switching action of point earth protective device, the process of folding are convenient and swift, safe and reliable, facilitate the use of user, while Also safety during transformer neutral point earth protection device switching action is substantially increased, transformer neutral point is substantially increased The service efficiency of earth protective device, by the setting to the first motor 6 and flabellum 7, has reached the effect radiated to casing 1 Really, so that transformer neutral point earth protection device also will not affect transformer neutral point ground connection because of high temperature in the course of the work The normal work of protection device, so as to improve the service efficiency of device, also substantially increases transformer neutral point ground protection The safety of device.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, Be appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of 330kV transformer neutral point earth protection devices, including casing (1), it is characterised in that：The casing (1) Side is communicated with inlet wire pipe (2), the side of the casing (1) and is located in the lower section of inlet wire pipe (2) and is installed with controller (3), the opposite side of the casing (1) is communicated with outlet-pipe (4), and the bottom of casing (1) inner chamber is installed with motor rack (5) the first motor (6), the output shaft fixed installation of first motor (6), are installed with the top of the motor rack (5) There is a flabellum (7), the both sides of casing (1) inwall and be located above the first motor (6) and be fixedly connected with fixed plate (8), institute State the side at the top of fixed plate (8) and be installed with insulation board (9), the both sides at the top of the insulation board (9) are symmetrically installed with porcelain Bottle insulator (10), is installed with conducting block (11), the top of casing (1) inner chamber at the top of the porcelain bottle insulators (10) Portion is installed with power set (12) and dehumidifier (13) from left to right successively, is installed with the top of the casing (1) Top board (14), the controller (3) are electrically connected with the first motor (6) and dehumidifier (13) respectively.

2. a kind of 330kV transformer neutral point earth protection devices according to claim 1, it is characterised in that：It is described dynamic Power apparatus (12) include shell (15), are installed with collets (16), the collets at the top of shell (15) inner chamber (16) bottom is installed with gripper shoe (17), and the front surface of the gripper shoe (17) offers the first chute (18), described The tooth bar (19) being adapted with the first chute (18), the bottom fixed installation of the tooth bar (19) are provided with first chute (18) Have in the first insulation sleeve (20), first insulation sleeve (20) and be installed with the first iron core (21), casing (1) inner chamber Bottom is installed with bracing frame (22), and workbench (23), the workbench are installed with the top of support frame as described above (22) (23) the second motor (24) is installed with the top of, the output shaft of second motor (24) is installed with gear (25), The gear (25) is intermeshed with tooth bar (19), and the side of the shell (15) offers and leads to for the first iron core (21) is mobile Hole, the controller (3) are electrically connected with the second motor (24).

3. a kind of 330kV transformer neutral point earth protection devices according to claim 1, it is characterised in that：It is described dynamic Power apparatus (12) include housing (27), and the both sides of housing (27) inner chamber are symmetrically installed with the second chute (28), described second It is provided with the shifting bar (29) being adapted with the second chute (28) in chute (28), the bottom for moving bar (29) is installed with the Three motors (30), the output shaft of the 3rd motor (30) are installed with screw mandrel (31), be arranged with the screw mandrel (31) with The nut (32) that screw mandrel (31) is adapted, the both sides of housing (27) inner chamber and the lower section fixation peace positioned at the second chute (28) Equipped with dividing plate (33), the screw mandrel (31) is run through dividing plate (33) and extends to dividing plate (33) away from one end of the 3rd motor (30) Outside, the bottom of the nut (32) are fixedly connected with the top of dividing plate (33), and the bottom of the screw mandrel (31) is fixedly connected with The second iron core (35), the side of the housing (27) are installed with second insulation sleeve (34), second insulation sleeve (34) Offer for the mobile opening of the second iron core (35), the controller (3) is electrically connected with the 3rd motor (30).

4. a kind of 330kV transformer neutral point earth protection devices according to claim 2, it is characterised in that：The tooth The first limited block (36) is installed with the top of bar (19).

5. a kind of 330kV transformer neutral point earth protection devices according to claim 3, it is characterised in that：Described The side of the bottom of two chutes (28) is installed with the second limited block (26).