CN201717083U

CN201717083U - Novel phase-electricity recognition cover-free double-sealing transformer porcelain sleeve

Info

Publication number: CN201717083U
Application number: CN2010202631458U
Authority: CN
Inventors: 许康文; 许�鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-01-19
Anticipated expiration: 2020-07-16

Abstract

The utility model discloses a novel phase-electricity recognition cover-free double-sealing transformer porcelain sleeve, which comprises an upper porcelain sleeve (4), a lower porcelain sleeve (7) and a conducting rod (1), wherein the upper porcelain sleeve (4) is arranged above a transformer box cover (9), the lower porcelain sleeve (7) is arranged under the transformer box cover, the conducting rod (1) passes through the upper porcelain sleeve and the lower porcelain sleeve, both ends of the conducting rod are respectively and fixedly connected with the upper porcelain sleeve and the lower porcelain sleeve, an upper sealing pad (10) is arranged between the upper porcelain sleeve and the transformer box cover, the top part of the lower porcelain sleeve passes through the transformer box cover, a lower sealing pad (8) is arranged between the lower porcelain sleeve and the transformer box cover, an identification board (12) for phase-electricity recognition is arranged on the outer surface of the upper porcelain sleeve (4), a conical groove is arranged in the lower porcelain sleeve, and a conical sealing pad (6) capable of making the lower porcelain sleeve and the conducting rod realize the inner sealing is arranged in the conical groove. The utility model can effectively prevent the occurrence of accidents caused by wrong connection of phase electricity ends, and the sealing pad is not outwards exposed, so the aging of the sealing pad can be effectively prevented, the oil leakage problem of the porcelain sleeves is solved, and the use period of the sealing pad is prolonged. The utility model reduces the total height of the porcelain sleeves, enhances the attractive appearance of the porcelain sleeves, can simultaneously shorten the effective length of the conducting rod, saves materials, and reduces the production cost.

Description

The novel identification of electricity mutually uncovered double containment porcelain shell for transformer

Technical field

The utility model relates to electric accessories such as transformer, voltage regulator in the distrbution network, especially relates to the porcelain shell for transformer pipe that is used for 50-5000A.

Background technology

Along with development economic and society, people are more and more stronger to the dependence of electricity, thereby also more and more higher to quality, the specification requirement of power equipment.And China's transformer customary insulation insulator and seal etc. have following point in various degree in the middle of producing and moving at present; The ' the one, the identification of electricity mutually of three-phase four electricity is not direct, not obvious, the mark that has is not directly on binding post, but other position outside binding post, have in addition do not have a mark, the easy wrong of phase electric capacity often causes short circuit and the human accident that damages electrical equipment.The 2nd, there is structural defect in the insulated porcelain sleeve design: a main insulation insulator is divided into three sections insulation, has not only reduced dielectric strength, has also brought serious performance hidden danger, and insulated porcelain sleeve is changed also inconvenient simultaneously; Sealing surface design between insulated porcelain sleeve and electrical equipment case lid and the conducting rod externally not only influences electrical equipment outward appearance and useful life, and causes seal easy deformation and aging, influences the normal operation of electrical equipment, increases the operating cost cost.The 3rd, because seal exposes, common transformer can not be suitable for highlands, salt rain area preferably, and use in intensive ultraviolet and extensive chemical erosion area, and also little simultaneously suitable long-distance transport is jolted and shaken, cause insulator to break easily and become flexible, cause the electrical equipment leakage of oil.Be the insulated porcelain sleeve segment design again, not only influence compression strength, and increased the effective length of conducting rod, precious metal materials such as cathode copper have been wasted, increased the production cost of insulated porcelain sleeve, be unfavorable for energy-conservationly, according to the preliminary statistics, the cathode copper material unaccounted-for (MUF) that China only causes every year thus reaches more than 1.5 hundred million yuan.

The utility model content

Problem at insulated porcelain sleeve existence in the above-mentioned prior art, the utility model provides a kind of identification of electricity mutually clear, rational in infrastructure, good airproof performance, installation is changed conveniently, cost is low, and the novel electricity mutually that life cycle is long is discerned non-bonnet (NB) double containment porcelain shell for transformer.

The technical scheme that the technical problems to be solved in the utility model is taked is: the described novel non-bonnet (NB) of electricity identification mutually double containment porcelain shell for transformer comprises and is arranged on the last insulator that transformer tank covers face, be arranged on the following insulator below the transformer case lid and pass insulator and the conducting rod of following insulator, the conducting rod two ends are fixedly linked with last insulator and following insulator respectively, described going up between insulator and the transformer case lid is provided with sealing gasket, the transformer case lid is passed at following insulator top, be provided with the lower seal pad between following insulator and the transformer case lid, last insulator outer surface is provided with the Sign Board of electricity identification mutually, be provided with cone tank in the described following insulator, in cone tank, be provided with the conical gasket that can make following insulator and conducting rod realize built-in sealing.

Can be provided with three high pressure phase electricity ends representing with different literals, letter, numeral, symbol or color or its combination on the described Sign Board holds with four low pressure are electric mutually.

In order better conducting rod to be fixed, be provided with groove in insulator lower end down, conducting rod is provided with and is positioned at groove and can makes conducting rod that counterrotating convex clip does not take place, and described convex clip is square, quincunx, in-line, cross or ellipse; Described groove is square, quincunx, in-line, cross or ellipse.

Cover for insulator is fixedly secured at transformer tank, described insulator lower end arranged outside down has the parallel plane of two truncations, and described transformer tank covers to be provided with and can make down insulator not produce the machinists clamp of rotation.

The utility model is provided with electric end of three high pressure phases and the electric mutually Sign Board of representing with different literals, letter, numeral, symbol or color or its combination of holding of four low pressure owing to going up the insulator outer surface, thereby when transformer is installed, can wrong between the various electricity ends mutually, prevent that effectively the accident that mutually electric termination mistake causes from taking place; Owing between insulator and the transformer case lid lower seal pad being set down, be provided with conical gasket between following insulator and the conducting rod, realized built-in double containment with following insulator and conducting rod between following insulator and the transformer case lid, sealing gasket is not exposed, thereby can prevent effectively that sealing gasket is aging, solved insulator oil impregnate problem, and the life cycle that has prolonged sealing gasket; Be that insulator has been cancelled gland again, reduced the total height of insulator, increased the attractive in appearance of insulator, can shorten the effective length of conducting rod simultaneously, saved material, reduced production cost.The described novel identification of electricity mutually non-bonnet (NB) double containment porcelain shell for transformer is widely used in electric current and uses at transformer, the voltage regulator of 50-5000A.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the Q-Q sectional structure schematic diagram of Fig. 1,

Fig. 3 is that the B of Fig. 1 is to schematic diagram.

In the drawings, 1, conducting rod 2, copper nut 3, collision mat 4, go up insulator 5, convex clip 6, conical gasket 7, down insulator 8, lower seal pad 9, transformer case lid 10, go up sealing gasket 11, clamp 12, Sign Board 13, groove

Embodiment

At Fig. 1, among Fig. 2 and Fig. 3, the described novel non-bonnet (NB) of electricity identification mutually double containment porcelain shell for transformer comprises and is the conical insulator 4 of going up, following insulator 7 and conducting rod 1, it is described that upward insulator also can be cylindrical, prismatic or umbrella shape, it is cylindrical that described insulator 7 down is the T word, the described insulator of going up is arranged on above the transformer case lid 9, last insulator top is provided with the conducting rod installing hole, last insulator bottom is provided with cannelure, in cannelure, be provided with insulator and transformer case lid on can making realize sealing on sealing gasket 10, certainly upward the insulator bottom also can not established cannelure but directly between last insulator and transformer case lid sealing gasket 10 is set, described insulator top is down passed the transformer case lid and is extend out to outside the sealing gasket, following insulator bottom is positioned at transformer case lid 9 following (promptly playing the insulator bottom to be positioned at transformer), the interior conducting rod installing hole that is respectively arranged with from its top to bottom of described insulator down, cone tank (this two place does not mark) and groove 13, described groove is box-shaped, certainly groove also can be cross, quincunx, in-line or ellipse, be provided with lower seal pad 8 between described insulator down and the transformer case lid, described conducting rod 1 passes insulator and following insulator respectively, be provided with convex clip 5 in the conducting rod lower end, described convex clip is cross and embeds can make conducting rod not rotate when mounted in the groove, the conducting rod two ends are fixing with collision mat 3 and copper nut 2 with last insulator and following insulator respectively, last insulator outer surface is provided with the Sign Board 12 of electricity identification mutually, described Sign Board is provided with high pressure phase electricity A end, B end and C end and the mutually electric a end of low pressure, the b end, c end and o end, in cone tank, be provided with the conical gasket 6 that can make sealing in following insulator and the conducting rod realization, conical gasket is supported on the convex clip, during installation, thereby upwards being pushed can make down between insulator and the conducting rod, conical gasket realizes effective seal, described insulator down bottom is provided with the parallel plane of two truncations, described transformer case lid is arranged with and can makes down insulator cover the parallel clamp 11 that does not produce rotation at transformer tank, and described clamp can and be fixed under the transformer case lid with angle steel or other made.

Claims

1. the novel identification of electricity mutually uncovered double containment porcelain shell for transformer, it comprises the last insulator (4) that is arranged on above the transformer case lid (9), be arranged on the following insulator (7) below the transformer case lid and pass insulator and the conducting rod (1) of following insulator, the conducting rod two ends are fixedly linked with last insulator and following insulator respectively, described going up between insulator and the transformer case lid is provided with sealing gasket (10), it is characterized in that: the transformer case lid is passed at following insulator top, be provided with lower seal pad (8) between following insulator and the transformer case lid, last insulator (4) outer surface is provided with the Sign Board (12) of electricity identification mutually, be provided with cone tank in the following insulator, in cone tank, be provided with the conical gasket (6) that can make sealing in following insulator and the conducting rod realization.

2. the novel identification of electricity mutually uncovered double containment porcelain shell for transformer according to claim 1, it is characterized in that: be provided with groove (13) below the cone tank in the described insulator (7) down, the conducting rod lower end is provided with convex clip (5), and described convex clip can be fixed in the groove.