CN206076947U - A kind of 330kV-500kV transformer neutral points complexes - Google Patents

Abstract

This utility model provides a kind of 330kV-500kV transformer neutral points complexes, is related to the lightning-arrest field of transformator.The 330kV-500kV transformer neutral point complexes, including fixed seat, the both sides of the fixed seat bottom have been fixedly connected with support column, the top of the fixed seat sequentially passes through from right to left and is provided with high-voltage insulation strut and lightning arrester, the bottom of the high-voltage insulation strut is electrically connected with by the operating mechanism arranged on the right side of wire and support column, current transformer is fixedly connected with the top of the high-voltage insulation strut, top of the current transformer by wire with lightning arrester is electrically connected with, the top of the fixed seat and pedestal is provided with the left of lightning arrester, the top of the pedestal is fixedly connected sequentially from right to left to be had insulator and supports conducting rod.The 330kV-500kV transformer neutral point complexes, protect transformer neutral point complexes, it is to avoid economic loss, has ensured the life and work electricity consumption of people.

Description

A kind of 330kV-500kV transformer neutral points complexes

Technical field

This utility model is related to transformator lightning-protecting engineering field, specially a kind of 330kV-500kV transformer neutral points into Covering device.

Background technology

Transformer neutral point complexes can be achieved on transformer neutral point ground connection operation or it is earth-free operation two kinds not The same method of operation, so as to avoid due to the system failure, causes transformer neutral point voltage to raise and causes the infringement to transformator, It is widely used in the fields such as electric power, metallurgy, petrochemical industry, mine, building environmental protection.

Transformer neutral point complexes typically have：Neutral ground disconnecting switch (containing operating mechanism), neutral point are taken shelter from the thunder Device, neutral point CT, neutral point discharge gap etc..

Due to transformer neutral point complexes, it is a kind of safer device for transformer, so in common transformator Property point complexes the lightning-arrest effect of transformer neutral point spark gap is all more despised, but, summer rain when be thunder and lightning When multiple, if transformer neutral point complexes in being impacted by thunder and lightning, it will cause the damage of whole device, more transformation The program trouble of depressor neutral point complexes, and it is expensive, the consuming time is longer, and the life and work electricity consumption to people is caused Very big inconvenience.

Utility model content

(1) technical problem for solving

For the deficiencies in the prior art, this utility model provides a kind of 330kV-500kV transformer neutral points into suit Put, solve the problems, such as that the lightning-arrest effect of current transformer neutral point complexes is bad.

(2) technical scheme

To realize object above, this utility model is achieved by the following technical programs：A kind of 330kV-500kV becomes Depressor neutral point complexes, including fixed seat, the both sides of the fixed seat bottom have been fixedly connected with support column, the fixation The top of seat sequentially passes through from right to left and is provided with high-voltage insulation strut and lightning arrester, and the bottom of the high-voltage insulation strut leads to Cross the operating mechanism arranged on the right side of wire and support column to be electrically connected with, at the top of the high-voltage insulation strut, be fixedly connected with electric current Transformer, top of the current transformer by wire with lightning arrester are electrically connected with, the top and position of the fixed seat It is provided with pedestal on the left of lightning arrester, the top of the pedestal is fixedly connected sequentially insulator from right to left and support is led Electric pole.

The lightning arrester includes changing monitor, and the bottom of the conversion monitor is fixedly connected with metallic ground post, The first insulated column is fixedly connected with the top of the conversion monitor, the surface of first insulated column is provided with insulation sleeve, institute State and at the top of the first insulated column, be fixedly connected with lightning protection shell, first insulated column is internally provided with the first conducting rod, The bottom of first conducting rod is fixedly connected with the top of conversion monitor, and the top of first conducting rod is exhausted through first The top of edge post and the inside of lightning protection shell is extended to, be fixedly connected at the top of the first conducting rod inside lightning protection shell There is the first conductive plate, at the top of first conductive plate, be fixedly connected with current dissipation post, the top of the current dissipation post is solid Surely the second conducting rod is connected with, the top of second conducting rod is run through the first insulated column and extends to the top of the first insulated column Portion, second conducting rod are internally provided with conducting element, and the two ends of the conducting element have been fixedly connected with spring, described Spring is fixedly connected with the inwall of the second conducting rod away from one end of conducting element, and the top of second conducting rod passes through first Grading ring is fixedly connected with the 3rd conducting rod, is fixedly connected with the second grading ring at the top of the 3rd conducting rod, and described second The top of grading ring is run through lightning protection shell and extends to the top of lightning protection shell, positioned at the second of lightning protection case top Grading ring is fixedly connected with connecting pole, and the second conductive plate is fixedly connected with the top of the connecting pole.

Preferably, the insulation sleeve includes rubber layer, and the outer surface of the rubber layer is provided with cross-linked polyethylene layer.

Preferably, the bottom of the pedestal is fixedly connected with the second insulated column, the bottom of second insulated column and fixation The top of seat is fixedly connected.

Preferably, the left side of the operating mechanism is fixedly connected with fixed block, left side and the support column of the fixed block Right side is fixedly connected.

Preferably, the left side at the top of the insulator is fixedly connected with sparking electrode, and the right side of the support conducting rod is simultaneously And the position of correspondence sparking electrode is fixedly connected with the ground electrode used cooperatively with sparking electrode, the ground electrode and electric discharge Discharging gap has been cooperatively formed between electrode.

(3) beneficial effect

This utility model provides a kind of 330kV-500kV transformer neutral points complexes, the beneficial effect for possessing It is：The 330kV-500kV transformer neutral point complexes, by metallic ground post, the first conducting rod, the second conducting rod, The cooperation of three conducting rods, the first grading ring and the second grading ring, promote the pressure of thunder and lightning to alleviate through multilamellar, most thunder and lightning at last Pressure is delivered on ground by metallic ground post, so as to protect transformer neutral point complexes, it is to avoid economic loss, The life and work electricity consumption of people is ensured.

Description of the drawings

Fig. 1 is this utility model structure sectional view；

Amplification views of the Fig. 2 for this utility model lightning arrester；

Partial enlarged drawings of the Fig. 3 for this utility model A-A；

Structural representations of the Fig. 4 for this utility model insulation sleeve.

In figure：1 fixed seat, 2 support columns, 3 high-voltage insulation struts, 4 lightning arresters, 5 operating mechanisms, 6 fixed blocks, 7 electric currents Transformer, 8 pedestals, 9 insulators, 10 support conducting rods, 11 conversion monitors, 12 metallic ground posts, 13 first insulated columns, 14 exhausted It is edge set, 15 lightning protection shells, 16 first conducting rods, 17 first conductive plates, 18 current dissipation posts, 19 second conducting rods, 20 conductive Element, 21 springs, 22 first grading rings, 23 the 3rd conducting rods, 24 second grading rings, 25 connecting poles, 26 second conductive plates, 27 rubbers Glue-line, 28 cross-linked polyethylene layers, 29 second insulated columns, 30 sparking electrodes, 31 ground connection motors, 32 discharging gaps.

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.

This utility model embodiment provides a kind of 330kV-500kV transformer neutral points complexes, as Figure 1-4, Including fixed seat 1, the both sides of 1 bottom of fixed seat have been fixedly connected with support column 2, and support column 2 can play firm fixed seat 1 Effect, the surface of fixed seat 1 sequentially passes through from right to left and is provided with high-voltage insulation strut 3 and lightning arrester 4, high-voltage insulation strut 3 bottom is electrically connected with by the operating mechanism 5 arranged on the right side of wire and support column 2, operating mechanism 5 for transformer neutral point into The primary structure of covering device, the effect with neutral ground disconnecting switch, the left side of operating mechanism 5 are fixed with fixed block 6 and are connected Connect, the left side of fixed block 6 is fixedly connected with the right side of support column 2, and the top of high-voltage insulation strut 3 is fixedly connected with Current Mutual Inductance Device 7, according to electromagnetic induction principle, current transformer 7 is by the iron core and winding group for closing to the principle of current transformer 7 Can be that numerical value larger primary current is converted to numerical value by certain no-load voltage ratio is less into, the effect of current transformer 7 Secondary current, for the purposes, current transformer 7 such as carrying out protecting, measuring electrically connect with the top of lightning arrester 4 by wire Connect, the top of fixed seat 1 and the left side of lightning arrester 4 is provided with pedestal 8, the bottom of pedestal 8 is fixedly connected with second Insulated column 29, the bottom of the second insulated column 29 are fixedly connected with the top of fixed seat 1, and the top of pedestal 8 is solid successively from right to left Surely it is connected with insulator 9 and supports conducting rod 10, insulator 9 is a kind of special insulation control, can be in overhead transmission line In play an important role, the left side at the top of insulator 9 is fixedly connected with sparking electrode 30, supports the right side of conducting rod 10 and right The position of sparking electrode 30 is answered to be fixedly connected with the ground electrode 31 used cooperatively with sparking electrode 30, ground electrode 31 and electric discharge Discharging gap 32 has been cooperatively formed between electrode 30.

As in Figure 2-4, lightning arrester 4 includes changing monitor 11, and conversion monitor 11 can be hit by thunder and lightning with transformator In after, play a part of to voltage carry out conversion reduce with monitoring voltage, change monitor 11 bottom be fixedly connected with metal Earthing rod 12, metallic ground post 12 can be by the electrical power dispersions of thunder and lightning to ground, and the top for changing monitor 11 is fixedly connected The surface for having the first insulated column 13, the first insulated column 13 is provided with insulation sleeve 14, and insulation sleeve 14 includes rubber layer 27, rubber layer 27 Inside be provided with insulating rubber slab, insulating rubber slab physical and mechanical propertiess are good, with excellent insulating properties, can it is dry- Work in the high environment of 35～+100 DEG C of air dielectric coefficient requirements, the outer surface of rubber layer 27 is provided with cross-linked polyethylene layer 28, cross-linked polyethylene layer 28 is internally provided with crosslinked polyethylene, and crosslinked polyethylene has simple structure, lightweight, heat-resisting good, negative Loading capability is strong, non-fusible, resistance to chemical attack, the advantage of high mechanical strength, and the top of the first insulated column 13 is fixedly connected with lightning-arrest Containment vessel 15, lightning protection shell 15 can reach and completely cut off the electricity of thunder and lightning inside lightning arrester 4, the first insulated column 13 it is interior Portion is provided with the first conducting rod 16, and the first conducting rod 16 can transmit thunder and lightning, bottom and the conversion monitor of the first conducting rod 16 11 top is fixedly connected, and the top of the first conducting rod 16 is run through the top of the first insulated column 13 and extends to lightning protection shell 15 Inside, be fixedly connected with the first conductive plate 17 at the top of the first conducting rod 16 inside lightning protection shell 15, first is conductive Plate 17 can conduct the electricity that current dissipation post 18 is transmitted to the first conducting rod 16, and the top of the first conductive plate 17 is fixedly connected There is current dissipation post 18, current dissipation post 18 can disperse the pressure for slowing down thunder and lightning, and the top of current dissipation post 18 is fixedly connected Have the second conducting rod 19, the second conducting rod 19 can transmit thunder and lightning, the top of the second conducting rod 19 run through the first insulated column 13 and Extend to the top of the first insulated column 13, the second conducting rod 19 is internally provided with conducting element 20, and conducting element 20 is resistance to height The pressure of thunder and lightning can be transmitted repeatedly by pressure conducting element by spring 21, reach the effect for mitigating thunder and lightning pressure, conducting element 20 two ends have been fixedly connected with spring 21, and spring 21 is fixed with the inwall of the second conducting rod 19 away from one end of conducting element 20 Connection, the top of the second conducting rod 19 are fixedly connected with the 3rd conducting rod 23 by the first grading ring 22, and the first grading ring 22 can High-pressure uniform is distributed in around object, it is ensured that no potential difference between annular each position, so as to reach the effect pressed, the The top of three conducting rods 23 is fixedly connected with the second grading ring 24, and high-pressure uniform can be distributed in object week by the second grading ring 24 Enclose, it is ensured that no potential difference between annular each position, so as to reach the effect pressed, the top of the second grading ring 24 is through keeping away Thunder containment vessel 15 and extend to the top of lightning protection shell 15, the second grading ring 24 at the top of 15 body of lightning protection shell with even Connect post 25 to be fixedly connected, at the top of connecting pole 25, be fixedly connected with the second conductive plate 26, by metallic ground post 12, the first conducting rod 16th, the cooperation of the second conducting rod 19, the 3rd conducting rod 23, the first grading ring 22 and the second grading ring 24, promotes the pressure of thunder and lightning Alleviate through multilamellar, most the pressure of thunder and lightning is delivered on ground by metallic ground post at last.

When thunder and lightning hits the transformer neutral point complexes, electric power is pressed by the second conductive plate 26 by the two the second Ring 24 is delivered to the 3rd conducting rod 23, and the 3rd conducting rod 23 delivers power to the second conducting rod 19 by the first grading ring 24, The pressure of thunder and lightning is repeatedly transmitted inside the second conducting rod 19 with spring 21 by the second conducting rod 19 by conducting element 20 Slowed down, after slowing down to the pressure of thunder and lightning, the second conducting rod 19 is by the pressure again to thunder and lightning of current dissipation post 18 Disperseed, the thunder and lightning after dispersion is delivered to the first conducting rod 16 by the first conductive plate 17, the first conducting rod 16 is by thunder and lightning Pressure be delivered to metallic ground post 12 by changing monitor 11, conversion monitor 11 can be changed to the pressure of thunder and lightning With monitoring, the pressure of thunder and lightning change in conversion monitor 11 and be delivered to ground by metallic ground post 12 after being monitored Face.

In sum, the 330kV-500kV transformer neutral point complexes, conductive by metallic ground post 12, first The cooperation of bar 16, the second conducting rod 19, the 3rd conducting rod 23, the first grading ring 22 and the second grading ring 24, promotes the pressure of thunder and lightning Power is alleviated through multilamellar, and most the pressure of thunder and lightning is delivered on ground by metallic ground post 12 at last, so as to protect transformator Neutral point complexes, it is to avoid economic loss, have ensured the life and work electricity consumption of people.

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 (5)

1. a kind of 330kV-500kV transformer neutral points complexes, including fixed seat (1), it is characterised in that：The fixation The both sides of seat (1) bottom have been fixedly connected with support column (2), and the top of the fixed seat (1) sequentially passes through setting from right to left There are high-voltage insulation strut (3) and lightning arrester (4), the bottom of the high-voltage insulation strut (3) is right with support column (2) by wire The operating mechanism (5) that side is arranged is electrically connected with, and is fixedly connected with current transformer (7) at the top of the high-voltage insulation strut (3), The current transformer (7) is electrically connected with by the top of wire and lightning arrester (4), the top of the fixed seat (1) and Pedestal (8) is provided with the left of lightning arrester (4), the top of the pedestal (8) is fixedly connected sequentially from right to left to be had absolutely Edge (9) and support conducting rod (10)；

The lightning arrester (4) includes conversion monitor (11), and the bottom of conversion monitor (11) is fixedly connected with metal Earthing rod (12), is fixedly connected with the first insulated column (13), first insulated column at the top of conversion monitor (11) (13) surface is provided with insulation sleeve (14), is fixedly connected with lightning protection shell (15) at the top of first insulated column (13), First insulated column (13) is internally provided with the first conducting rod (16), bottom and the conversion prison of first conducting rod (16) Survey and be fixedly connected at the top of device (11), top and the extension of the first insulated column (13) are run through in the top of first conducting rod (16) To the inside of lightning protection shell (15), the is fixedly connected with the top of internal the first conducting rod (16) of lightning protection shell (15) One conductive plate (17), is fixedly connected with current dissipation post (18), the current dissipation post at the top of first conductive plate (17) (18) the second conducting rod (19) is fixedly connected with the top of, the first insulated column (13) is run through at the top of second conducting rod (19) And extending to the top of the first insulated column (13), second conducting rod (19) is internally provided with conducting element (20), described The two ends of conducting element (20) have been fixedly connected with spring (21), the one end and the of the spring (21) away from conducting element (20) The inwall of two conducting rods (19) is fixedly connected, and the top of second conducting rod (19) is led with the 3rd by the first grading ring (22) Electric pole (23) is fixedly connected, and the second grading ring (24) is fixedly connected with the top of the 3rd conducting rod (23), and described second is equal The top of pressure ring (24) is run through lightning protection shell (15) and extends to the top of lightning protection shell (15), positioned at lightning protection shell (15) the second grading ring (24) at the top of body is fixedly connected with connecting pole (25), and is fixedly connected with the top of the connecting pole (25) Two conductive plates (26).

2. a kind of 330kV-500kV transformer neutral points complexes according to claim 1, it is characterised in that：It is described Insulation sleeve (14) includes rubber layer (27), and the outer surface of the rubber layer (27) is provided with cross-linked polyethylene layer (28).

3. a kind of 330kV-500kV transformer neutral points complexes according to claim 1, it is characterised in that：It is described The bottom of pedestal (8) is fixedly connected with the second insulated column (29), the bottom of second insulated column (29) and the top of fixed seat (1) Portion is fixedly connected.

4. a kind of 330kV-500kV transformer neutral points complexes according to claim 1, it is characterised in that：It is described The left side of operating mechanism (5) is fixedly connected with fixed block (6), and the left side of the fixed block (6) is fixed with the right side of support column (2) Connection.

5. a kind of 330kV-500kV transformer neutral points complexes according to claim 1, it is characterised in that：It is described Left side at the top of insulator (9) is fixedly connected with sparking electrode (30), the right side for supporting conducting rod (10) and correspondence is put The position of electrode (30) is fixedly connected with the ground electrode (31) used cooperatively with sparking electrode (30), the ground electrode (31) discharging gap (32) has been cooperatively formed and sparking electrode (30) between.