CN212113328U

CN212113328U - Porcelain bushing insulator of power transformer

Info

Publication number: CN212113328U
Application number: CN202021167868.8U
Authority: CN
Inventors: 徐超; 杜志远; 李阳; 李桂香
Original assignee: Pingxiang City No5 Electrotechnical Porcelain Factory Co ltd
Current assignee: Pingxiang City No5 Electrotechnical Porcelain Factory Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-08
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a power transformer porcelain bushing insulator, which comprises an insulating column, an insulating tube and a guide hole, wherein the bottom end of the insulating column is provided with a base, the top end of the insulating column is provided with an insulating block, the insulating block is provided with an adjusting and fixing device, the side surface of the insulating column is provided with a plurality of insulating skirt rims, and the guide hole penetrates through the base and the insulating column and is connected with the insulating block; the base is provided with a sealing fixed groove and a plurality of base fixing bolt holes, the insulating block comprises a ceramic insulating block, a cross-shaped conductive frame is arranged in the ceramic insulating block, four ends of the cross-shaped conductive frame respectively penetrate through the side wall of the ceramic insulating block, and four ends of the cross-shaped conductive frame are connected with cable fixing devices; the utility model discloses a power transformer insulator of porcelain bushing is fixed, is dragged or guide generating line through adjusting fixing device for it is more convenient to pull the generating line, adjusts fixing device simultaneously and can adjust the direction of pulling according to the position of generating line, reduces the generating line and pulls the degree of difficulty.

Description

Porcelain bushing insulator of power transformer

Technical Field

The utility model belongs to the electric power insulator field, concretely relates to power transformer insulator.

Background

For a power transformer, an internal winding needs to be connected with a power grid through a bus after being led out through a sleeve, and when the load current is large, a hard bus such as a copper bar bus or an insulating tube bus is generally adopted. Because the weight of the hard bus is large, when the bus bridge frame is far away from the transformer sleeve, a support needs to be installed on the transformer body, and the bus is additionally supported through a post insulator on the support.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a power transformer insulator of porcelain bushing is provided, fixed, drag or guide generating line through adjusting fixing device for it is more convenient to pull the generating line, adjusts fixing device simultaneously and can adjust the direction of traction according to the position of generating line, reduces the generating line and pulls the degree of difficulty.

A power transformer porcelain bushing insulator comprises an insulating column, an insulating tube and a guide hole, wherein a base is arranged at the bottom end of the insulating column, an insulating block is arranged at the top end of the insulating column, an adjusting and fixing device is arranged on the insulating block, a plurality of insulating skirt edges are arranged on the side surface of the insulating column, and the guide hole penetrates through the base and the insulating column and is connected with the insulating block; the base is provided with a sealing fixed groove and a plurality of base fixing bolt holes, the insulating block comprises a ceramic insulating block, a cross conductive frame is arranged in the ceramic insulating block, four ends of the cross conductive frame respectively penetrate through the side wall of the ceramic insulating block, four ends of the cross conductive frame are connected with cable fixing devices, the ceramic insulating block is provided with a fixed cover, the fixed cover is provided with a fixed column, and the adjusting and fixing device is arranged on the fixed column; the insulating tube is including body and bolt, be provided with sealed dish on the body, body one end is provided with the conducting block, sealed dish passes through the bolt fastening in sealed fixed slot, be provided with the conductor wire in the body, conductor wire one end is connected with the conducting block, the conducting block is connected with the contact of cross conducting frame.

Preferably, one side of the base, which is far away from the insulating column, surrounds the sealing fixing groove and is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.

Preferably, a sealing ring is arranged between the sealing disc and the sealing fixing groove.

Preferably, the adjusting and fixing device comprises a rotating sleeve and a fixing bolt, the rotating sleeve is fixed on the fixing column through the fixing bolt, the rotating sleeve is symmetrically fixed with oblique rods, the oblique rods are hinged with balancing rods, and cable fixing devices are fixed on the balancing rods.

Preferably, the cable fixer comprises a U-shaped cable fixing sleeve, two ends of the U-shaped cable fixing sleeve are connected with fixing plates, and screw holes for bolts to pass through are formed in the fixing plates.

Has the advantages that:

(1) the utility model discloses a power transformer insulator of porcelain bushing is fixed, is dragged or guide generating line through adjusting fixing device for it is more convenient to pull the generating line, adjusts fixing device simultaneously and can adjust the direction of pulling according to the position of generating line, reduces the generating line and pulls the degree of difficulty.

(2) The utility model discloses an its simple structure of power transformer insulator porcelain bushing, convenient and practical reduces the cable side and pulls the insulator that needs through the conductor wire with the direct leading-in transformer side incasement of cable, reduces the generating line and pulls the degree of difficulty.

Drawings

FIG. 1 is a schematic structural diagram of a porcelain bushing insulator of a transformer;

FIG. 2 is a schematic structural diagram of an insulating column;

FIG. 3 is a schematic structural diagram of an insulating tube;

FIG. 4 is a schematic view of the adjusting fixture;

FIG. 5 is a schematic view of a cable holder configuration;

1-insulating column, 11-insulating skirt, 12-guide hole, 2-base, 21-sealing fixed groove, 22-sealing ring, 23-sealing groove, 24-base fixed bolt hole, 3-insulating tube, 31-tube body, 32-conductive wire, 33-sealing disc, 34-bolt, 35-conductive block, 4-insulating block, 41-ceramic insulating block, 42-cross conductive frame, 43-cable fixer, 44-fixed cover, 45-fixed column, 5-adjusting fixing device, 51-rotating sleeve, 52-inclined rod, 53-balance rod, 54-U-shaped cable fixed sleeve, 55-fixed plate and 56-fixed bolt.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example 1

As shown in fig. 1-5; a power transformer porcelain bushing insulator comprises an insulating column 1, an insulating tube 3 and a guide hole 12, wherein a base 2 is arranged at the bottom end of the insulating column 1, an insulating block 4 is arranged at the top end of the insulating column 1, an adjusting and fixing device 5 is arranged on the insulating block 4, a plurality of insulating skirt rims 11 are arranged on the side surface of the insulating column 1, and the guide hole 12 penetrates through the base 2 and the insulating column 1 to be connected with the insulating block 4; the base 2 is provided with a sealing fixing groove 21 and a plurality of base fixing bolt holes 24, the insulating block 4 comprises a ceramic insulating block 41, a cross conductive frame 42 is arranged in the ceramic insulating block 41, four ends of the cross conductive frame 42 respectively penetrate through the side wall of the ceramic insulating block 41, four ends of the cross conductive frame 42 are connected with cable fixing devices 43, a fixing cover 44 is arranged on the ceramic insulating block 41, a fixing column 45 is arranged on the fixing cover 44, and the adjusting and fixing device 5 is arranged on the fixing column 45; the insulating tube 3 comprises a tube body 31 and a bolt 34, wherein a sealing disc 33 is arranged on the tube body 31, a conductive block 35 is arranged at one end of the tube body 31, the sealing disc 33 is fixed in the sealing fixing groove 21 through the bolt 34, a conductive wire 32 is arranged in the tube body 31, one end of the conductive wire 32 is connected with the conductive block 35, and the conductive block 35 is in contact connection with a cross conductive frame 42; a sealing groove 23 is formed in one side, away from the insulating column 1, of the base 2 around the sealing fixing groove 21, and a sealing ring 22 is arranged in the sealing groove 23; a sealing ring is arranged between the sealing disc 33 and the sealing fixing groove 21; the adjusting and fixing device 5 comprises a rotating sleeve 51 and a fixing bolt 56, the rotating sleeve 51 is fixed on a fixing column 45 through the fixing bolt 56, the rotating sleeve 51 is symmetrically fixed with an oblique rod 52, the oblique rod 52 is hinged with a balance rod 53, and the balance rod 53 is fixed with a cable fixer 43; the cable fixer 43 comprises a U-shaped cable fixing sleeve 54, two ends of the U-shaped cable fixing sleeve 54 are connected with fixing plates 55, and screw holes for bolts to pass through are formed in the fixing plates 55.

The base 2 is installed on the transformer through bolts, and the edge of a through hole on the transformer is inserted into the sealing groove 23 and contacts with the sealing ring 22, so that the through hole is isolated from the outside, and water is prevented from flowing into the transformer; firstly, the rotating sleeve 51 is rotated to enable the inclined rod 52 to face the cable, the fixing bolt 56 is locked to enable the rotating sleeve 51 to be fixed on the fixing column 45, the cable penetrates through the U-shaped cable fixing sleeve 54 on the symmetrical inclined rod 52, the balance degree of the cable at the position is ensured through the two balancing rods 53, the distance between the two fixing plates 55 is tightened through the bolt to enable the cable to be locked in the U-shaped cable fixing sleeve 54, the balancing rods 53 are connected to the inclined rod 52 in a hinged mode, the cable fixing devices 43 on the two balancing rods 53 can be ensured to be in a balanced state after the cable is fixed, and the angle of cable tension is stabilized; after the fixing, one end of the cable is fixed on a cable fixer 43 at one end of the cross conductive frame 42; the power is led into the cross conductive frame 42 through the cable, the conductive wire 32 is led into the lead-in conductive block 35 through the conductive block 35, and the power is led into the transformer through the conductive wire 32; the seal plate 33 is preferably disposed in the middle of the tube 31 so that a portion of the tube 31 can extend into the transformer, thereby facilitating the connection of the conductive wire 32 to the transformer and reducing the need for internal insulation of the transformer; the conducting wire 32 can be set as long as the tube 31, which facilitates the connection of the cable; by providing the seal ring between the seal disk 33 and the seal fixing groove 21, the conductive water is in the guide hole 12 even if the pipe body 31 is cracked, but the material of the base 2 is preferably an insulating material; the fixing cover 44 is used for evenly distributing the tensile force of the cable to the ceramic insulating block 41, and if the tensile force of the fixing post 45 directly acts on one side or one point of the ceramic insulating block 41 without using the fixing cover 44, the ceramic insulating block 41 is brittle.

The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above detailed description. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. The utility model provides a power transformer insulator of porcelain bushing which characterized in that: the insulating column comprises an insulating column (1), an insulating tube (3) and guide holes (12), wherein a base (2) is arranged at the bottom end of the insulating column (1), an insulating block (4) is arranged at the top end of the insulating column (1), an adjusting and fixing device (5) is arranged on the insulating block (4), a plurality of insulating skirts (11) are arranged on the side surface of the insulating column (1), and the guide holes (12) penetrate through the base (2) and the insulating column (1) and are connected with the insulating block (4); a sealing fixing groove (21) and a plurality of base fixing bolt holes (24) are formed in the base (2), the insulating block (4) comprises a ceramic insulating block (41), a cross conductive frame (42) is arranged in the ceramic insulating block (41), four ends of the cross conductive frame (42) penetrate through the side wall of the ceramic insulating block (41) respectively, cable fixing devices (43) are connected to four ends of the cross conductive frame (42), a fixing cover (44) is arranged on the ceramic insulating block (41), a fixing column (45) is arranged on the fixing cover (44), and the adjusting and fixing device (5) is arranged on the fixing column (45); insulating tube (3) are including body (31) and bolt (34), be provided with sealed dish (33) on body (31), body (31) one end is provided with conducting block (35), sealed dish (33) are fixed in sealed fixed slot (21) through bolt (34), be provided with conductor wire (32) in body (31), conductor wire (32) one end is connected with conducting block (35), conducting block (35) and cross are electrically conductive to put up (42) contact connection.

2. A power transformer bushing insulator according to claim 1, wherein: one side of the base (2) far away from the insulating column (1) surrounds the sealing fixing groove (21) and is provided with a sealing groove (23), and a sealing ring (22) is arranged in the sealing groove (23).

3. A power transformer bushing insulator according to claim 2, wherein: and a sealing ring is arranged between the sealing disc (33) and the sealing fixing groove (21).

4. A power transformer bushing insulator according to claim 1 or 3, wherein: the adjusting and fixing device (5) comprises a rotating sleeve (51) and a fixing bolt (56), the rotating sleeve (51) is fixed on a fixing column (45) through the fixing bolt (56), inclined rods (52) are symmetrically fixed on the rotating sleeve (51), a balance rod (53) is hinged on each inclined rod (52), and a cable fixer (43) is fixed on each balance rod (53).

5. A power transformer bushing insulator according to claim 4, wherein: the cable fixer (43) comprises a U-shaped cable fixing sleeve (54), two ends of the U-shaped cable fixing sleeve (54) are connected with fixing plates (55), and screw holes for bolts to penetrate through are formed in the fixing plates (55).