CN204375549U - The transformer high-voltage bushing of water proof and dust proof - Google Patents

Abstract

The utility model relates to a waterproof and dustproof transformer high-voltage bushing. The technical solution is: a terminal board is arranged on the upper part of the guide rod, the terminal board is connected to the guide rod through a spring washer bolt, a casing is arranged on the lower part of the guide rod, and an electrostatic precipitator is arranged on the outside of the casing, and the top of the casing is The copper cap is set, the winding lead connector is fixed on the copper cap through threads, the copper cap is connected with the external lead joint, a sealing gasket oil filling plug is arranged on the left side of the sleeve, a sealing gasket is arranged on the right side of the casing, and a sealing gasket is installed on the sealing gasket A bolt spring washer is arranged on the top of the casing, and the sealing gasket cooperates with the bolt spring washer, and a pin crossing the polished rod is arranged in the casing; the beneficial effect of the utility model is that the utility model is provided with a copper cap, which can prevent water from seeping into the transformer, and The utility model is provided with an electrostatic dust removal device, which can remove dust.

Description

Waterproof and dustproof transformer high voltage bushing

technical field

The utility model relates to a transformer bushing, in particular to a waterproof and dustproof transformer high-voltage bushing.

Background technique

The transformer bushing is an insulating bushing that leads the high and low voltage leads inside the transformer to the outside of the oil tank. It not only serves as insulation for the leads to the ground, but also plays the role of fixing the leads. The transformer bushing is one of the current-carrying components of the transformer. During the operation of the transformer, the load current passes through it for a long time; when it is short-circuited, it passes the short-circuit current, so it needs to have good thermal stability. The existing transformer wall bushing has poor thermal stability, and the inside of the wall bushing is easily corroded by the outside atmosphere. Working long hours leads to inefficiency.

The Chinese patent document publication number is 203644531 U, and the patent title is "High Voltage Capacitive Wall Penetrating Bushing Device". The utility model relates to a high voltage capacitive wall penetrating bushing device. The other end of the bushing is connected to the indoor porcelain bushing, the upper part of the bushing is connected to the fuel tank, the bushing is provided with an oil-taking plug and an oil-draining plug, and the outer part of the bushing is provided with a measuring lead. The outdoor porcelain sleeve and the indoor porcelain sleeve are provided with a capacitor core inside, the capacitor core is conical, the capacitor core is used as a pole plate through copper foil, and the outside of the pole plate is used as a conductive medium through oil-immersed cable paper ; Beneficial effect: the conical capacitor core uses copper foil as the pole plate, oil-immersed cable paper as the conduction medium, and there are cooling holes on the pole plate to ensure the thermal stability of the casing, and the two ends of the casing are connected to the outdoor porcelain through rubber pads The sleeve and the indoor porcelain sleeve prevent the internal insulation from being corroded by the outside atmosphere and improve work efficiency.

But it still has disadvantages. This utility model cannot prevent the entry of water, and this utility model does not have a dust removal device, so it cannot remove dust from the transformer bushing.

Contents of the invention

The purpose of this utility model is to provide a waterproof and dustproof transformer high-voltage bushing for the above-mentioned defects in the prior art.

The technical solution is: including terminal board, spring washer bolt, electrostatic precipitator, copper cap, lead joint, pin, bolt spring washer, sealing gasket oil plug, sealing gasket, sleeve; a terminal board is arranged on the upper part of the guide rod, The terminal board is connected to the guide rod by spring washer bolts. A bushing is set on the lower part of the guide rod, and an electrostatic precipitator is set outside the bushing. A copper cap is set on the top of the bushing, and the winding lead connector is fixed on the copper cap through threads. The copper cap is connected with the external lead joint. A gasket oil plug is provided on the left side of the bushing, a gasket is arranged on the right side of the casing, and a bolt spring washer is arranged on the top of the gasket. The gasket cooperates with the bolt spring washer. A pin that traverses the polished rod is arranged in the casing.

The above-mentioned electrostatic precipitator comprises electromagnetic hammer vibrator, rapping rod, connection sleeve, insulating shaft, support nut, support cover, support insulator, top plate, suspension rod, cathode suspension beam, cathode frame, cathode wire; An electromagnetic hammer vibrator is arranged on the upper part of the electromagnetic hammer vibrator, and two insulating shafts are arranged under the electromagnetic hammer vibrator. A rapping rod is connected to the upper part of the insulating shaft through a connecting sleeve, and a top plate is set in the middle of the insulating shaft, and the top plate runs through Insulated shaft, and the lower part of the insulating shaft is provided with a supporting insulator, the upper side of the supporting insulator is connected with a supporting cover through a supporting nut, a suspension rod is arranged in the center of the insulating shaft under the top plate, and a cathode hanging beam is arranged on the insulating shaft under the top plate. The hanging beam runs through the cathode frame, and the cathode line is arranged at the lower part of the electrostatic precipitator.

The beneficial effects of the utility model are: the utility model is provided with a copper cap, which can prevent water from seeping into the transformer, and the utility model is provided with an electrostatic dust removal device, which can remove dust, thereby making the transformer work longer and have stable efficiency.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the structural representation of the utility model electrostatic precipitator;

In the above picture: terminal board 1, spring washer bolt 2, electrostatic precipitator 3, copper cap 4, lead joint 5, pin 6, bolt spring washer 7, gasket oil plug 8, gasket 9, bushing 10, guide rod 11. Electromagnetic hammer vibrator 3.1, rapping rod 3.2, connecting sleeve 3.3, insulating shaft 3.4, support nut 3.5, support cover 3.6, support insulator 3.7, top plate 3.8, suspension rod 3.9, cathode suspension beam 3.10, cathode frame 3.11, Cathode wire 3.12.

Detailed ways

In conjunction with accompanying drawings 1-2, the utility model is further described:

The utility model includes a wiring board 1, a spring washer bolt 2, an electrostatic dust removal device 3, a copper cap 4, a lead joint 5, a pin 6, a bolt spring washer 7, a sealing pad oil plug 8, a sealing pad 9, a casing 10, and a guide rod 11. A terminal board 1 is provided on the upper part of the guide rod 11, and the terminal board 1 is connected to the guide rod 11 through a spring washer bolt 2. A sleeve 10 is provided on the lower part of the guide rod 11, and an electrostatic precipitator is provided on the outside of the sleeve 10. 3. The top of the bushing 10 is provided with a copper cap 4, and the winding lead connector is fixed on the copper cap 4 through threads, and the copper cap 4 is connected to the external lead connector 5, so that the winding lead connector will not be in contact with the outside, thereby preventing For the entry of water, a gasket oil filling plug 8 is arranged on the left side of the casing 10, a gasket 9 is arranged on the right side of the casing 10, and a bolt spring washer 7 is arranged on the gasket 9, and the gasket 9 and the bolt The spring washer 7 cooperates, and the pin 6 that traverses the polished rod is arranged in the casing 10 .

Among them, the above electrostatic precipitator 3 includes electromagnetic hammer vibrator 3.1, rapping rod 3.2, connecting sleeve 3.3, insulating shaft 3.4, support nut 3.5, support cover 3.6, support insulator 3.7, top plate 3.8, suspension rod 3.9, cathode hanger Beam 3.10, cathode frame 3.11, cathode wire 3.12; an electromagnetic hammer vibrator 3.1 is arranged on the upper part of the electrostatic precipitator 3, and two insulating shafts 3.4 are arranged under the electromagnetic hammer vibrator 3.1, and the upper part of the insulating shaft 3.4 is connected The sleeve 3.3 is connected with a rapping rod 3.2, and a top plate 3.8 is arranged in the middle of the insulating shaft 3.4, and the insulating shaft 3.4 runs through the top plate 3.8, and the lower part of the insulating shaft 3.4 is provided with a support insulator 3.7, and the upper side of the support insulator 3.7 is connected by a support nut 3.5 There is a support cover 3.6, a suspension rod 3.9 is set in the center of the insulating shaft 3.4 under the top plate 3.8, a cathode hanging beam 3.10 is set on the insulating shaft 3.4 under the top plate 3.8, the cathode hanging beam 3.10 runs through the cathode frame 3.11, and the electrostatic precipitator 3 The lower part is provided with a cathode line 3.12.

The utility model is provided with a copper cap, which can prevent water from seeping into the transformer, and is provided with an electrostatic precipitator, which can remove dust, so that the transformer can work longer and have stable efficiency.

Claims (2)

1. A waterproof and dustproof transformer high-voltage bushing, which is characterized by: including terminal board (1), spring washer bolts (2), electrostatic dust removal device (3), copper cap (4), lead connector (5), Pin (6), bolt spring washer (7), gasket oil plug (8), gasket (9), bushing (10), guide rod (11); a terminal board is arranged on the upper part of the guide rod (11) (1), the terminal board (1) is connected to the guide rod (11) through the spring washer bolt (2), and a sleeve (10) is arranged on the lower part of the guide rod (11), and a static electricity is installed outside the sleeve (10). The dust removal device (3), the copper cap (4) is set on the top of the casing (10), the winding lead connector is fixed on the copper cap (4) through threads, the copper cap (4) is connected with the external lead connector (5), and the The left side of the pipe (10) is provided with a gasket oil filling plug (8), the right side of the casing (10) is provided with a gasket (9), and the bolt spring washer (7) is arranged on the gasket (9), The sealing gasket (9) cooperates with the bolt spring washer (7), and a pin (6) crossing the polished rod is arranged in the casing (10). 2. The waterproof and dustproof transformer high-voltage bushing according to claim 1, characterized in that: the electrostatic precipitator (3) includes an electromagnetic hammer vibrator (3.1), a rapping rod (3.2), a connecting sleeve ( 3.3), insulating shaft (3.4), support nut (3.5), support cover (3.6), support insulator (3.7), top plate (3.8), suspension rod (3.9), cathode suspension beam (3.10), cathode frame (3.11 ), cathode wire (3.12); an electromagnetic hammer vibrator (3.1) is arranged on the upper part of the electrostatic precipitator (3), and two insulating shafts (3.4) are arranged under the electromagnetic hammer vibrator (3.1). The upper part of (3.4) is connected with the rapping rod (3.2) through the connecting sleeve (3.3), and a top plate (3.8) is arranged in the middle of the insulating shaft (3.4), and the insulating shaft (3.4) runs through the top plate (3.8), and is insulated The lower part of the shaft (3.4) is provided with a supporting insulator (3.7), and the upper side of the supporting insulator (3.7) is connected with a supporting cover (3.6) through a supporting nut (3.5), and a suspension is provided at the center of the insulating shaft (3.4) under the top plate (3.8). Rod (3.9), the cathode hanging beam (3.10) is set on the insulating shaft (3.4) under the top plate (3.8), the cathode hanging beam (3.10) runs through the cathode frame (3.11), and is set on the lower part of the electrostatic precipitator (3) There are cathodic wires (3.12).