CN201951278U - All-subsection shunt-wound power supply system for contact net of electrified railway traction power supply system - Google Patents
All-subsection shunt-wound power supply system for contact net of electrified railway traction power supply system Download PDFInfo
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- CN201951278U CN201951278U CN2011200752861U CN201120075286U CN201951278U CN 201951278 U CN201951278 U CN 201951278U CN 2011200752861 U CN2011200752861 U CN 2011200752861U CN 201120075286 U CN201120075286 U CN 201120075286U CN 201951278 U CN201951278 U CN 201951278U
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Abstract
The utility model relates to an all-subsection shunt-wound power supply system for a contact net of an electrified railway traction power supply system, a high-voltage combined electrical appliance is constituted by four subsection circuit breaker groups, and each subsection circuit breaker group comprises an isolating switch, a circuit breaker, a lightning arrester and a current transformer. One end of each subsection device group is connected to an uplink power supply arm or a downlink power supply arm, and the other end of each subsection device group is connected onto a shunt-wound bus, so as to divide the contact net into four power supply subareas; no matter which power supply subarea of the contact net plans to perform power failure, the higher traction power supply capability can be kept. By adopting the all-subsection shunt-wound power supply system, the application efficiency of a power supply device is improved to the maximum extent, the length of a power failure region is reduced when a fault occurs in the contact net, and great simpleness is provided for construction and mounting engineering and operation management of the device.
Description
Technical field
The utility model relates to a kind of electric railway traction power supply system contact system parallel operation system, especially the main electrical scheme structural shape of two kinds of full segmentation parallel operation modes and by its 2 kinds of high pressure combined electrical apparatuses that constitute.Be applied in the electric railway traction power supply system direct feeding system, take back in the system under direct (DN) power supply mode, booster transformer-return wire (BT) power supply mode, autotransformer (AT) power supply mode of streamline.
Background technology
Electrified railway traction power supply system is being undertaken the vital task to the electric locomotive power supply, and its safe status is very important.For guarantee all the time to electric locomotive provide enough, reliable, safe electric energy, just must be to improve the power equipment supply operation efficiency most possibly, power failure section length when reducing the contact system fault under the prerequisite that does not change traction substation and contact net equipment, further improves power supply capacity.
At multiple line (two-wire) electric railway traction power supply section, take the contact system of uplink and downlink feeding section is reduced impedance of traction electric network at middle part and the terminal measure of carrying out parallel operation, improve power supply capacity.Terminal to realize in parallel be " section post (booth) " at feeding section, realizes that at the feeding section middle part in parallel is " institute in parallel (switchyard) ".In the AT power supply mode, what realize parallel connection at the feeding section middle part generally is to utilize the AT institute that need carry out parallel operation.
In these parallel operation measures at present, all be by adopting circuit breaker or disconnector that the contact system (T) and the positive feeder (F) of uplink and downlink feeding section directly are together in parallel respectively.Though this parallel way can reduce impedance of traction electric network, but still kept original power supply zone, be that the uplink and downlink feeding section respectively is a power supply zone, power failure section length the shortest during the contact system fault still is a feeding section total length, the power failure section length in the time of not only can having enlarged the contact system fault under the operating condition that has even also will lose power supply capacity.
The utility model content
The utility model provides the full segmentation parallel operation of a kind of electric railway traction power supply system contact system system at the problems referred to above, satisfying under the various power supply modes of electric railway traction power supply system, to improve the power equipment supply operation efficiency most possibly, power failure section length when reducing the contact system fault further improves power supply capacity.
This later-model purpose is achieved in that the full segmentation parallel operation of a kind of electric railway traction power supply system contact system system, the high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group structure is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing;
Be connected to a descending feeding section behind the 1st external connection terminal A of the 1st section switch group serial connection disconnector 9QS, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C of the 3rd section switch group serial connection disconnector 11QS, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B of the 2nd section switch group serial connection disconnector 10QS, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D of the 4th section switch group serial connection disconnector 12QS, the 4th external connection terminal is connected in series fuse 4FU and voltage transformer 4TV external ground in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
Above-mentioned high pressure combined electrical apparatus is arranged in the SF6 air chamber, and the SF6 air chamber is installed on the steel framework.
Above-mentioned SF6 air chamber is one or more.
Also be equipped with on the above-mentioned steel framework as integrated control cabinet and operating mechanism that secondary device is installed.
Another purpose of the present utility model provides a kind of power equipment supply operation efficiency height, the full segmentation parallel operation of electric railway traction power supply system contact system system that the power failure section length is little.
This later-model another purpose is achieved in that the full segmentation parallel operation of a kind of electric railway traction power supply system contact system system, the first high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group mechanism is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing;
Be connected to a descending feeding section behind the 1st external connection terminal A serial connection disconnector 9QS of the 1st section switch group of the 1st high pressure combined electrical apparatus, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C serial connection disconnector 11QS of the 3rd section switch group of the 1st high pressure combined electrical apparatus, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B serial connection disconnector 10QS of the 2nd section switch group of the 1st high pressure combined electrical apparatus, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D serial connection disconnector 12QS of the 4th section switch group of the 1st high pressure combined electrical apparatus, the 4th external connection terminal is connected in series ground connection behind fuse 4FU and the voltage transformer 4TV in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
The second high pressure combined electrical apparatus has and the identical structure of the above-mentioned first high pressure combined electrical apparatus:
The 1st external connection terminal A of the 1st section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 9
,Be connected to descending positive feeder Fx behind the QS, this terminal A
,Be connected in series fuse 1 in turn
,FU and voltage transformer 1
,Ground connection behind the TV, this terminal A
,Serial connection lightning arrester 1
,Ground connection behind the F;
The 3rd external connection terminal C of the 3rd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 11
,Be connected to descending positive feeder Fx behind the QS, this terminal C
,Be connected in series fuse 3 in turn
,FU and voltage transformer 3
,Ground connection behind the TV, this terminal C
,Serial connection lightning arrester 3
,Ground connection behind the F;
The 2nd external connection terminal B of the 2nd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 10
,Be connected to up positive feeder Fs behind the QS, this terminal B
,Be connected in series fuse 2 in turn
,FU and voltage transformer 2
,Ground connection behind the TV, this terminal B
,Serial connection lightning arrester 2
,Ground connection behind the F;
The 4th external connection terminal D of the 4th section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 12
,Be connected to up positive feeder Fs behind the QS, this terminal D
,Be connected in series fuse 4 in turn
,FU and voltage transformer 4
,Ground connection behind the TV, this terminal D
,Serial connection lightning arrester 4
,Ground connection behind the F;
The bus Bb in parallel of the above-mentioned first high pressure combined electrical apparatus is connected in series the F end that is connected to self coupling power transformation device AT behind circuit breaker 13QF, the disconnector 3QS in turn, and the F end of self coupling power transformation device AT is through earthing switch 15QS ground connection;
The bus Bb in parallel of the above-mentioned second high pressure combined electrical apparatus
,Be connected in series the T end that is connected to self coupling power transformation device AT behind circuit breaker 14QF, the disconnector 14QS in turn, the T end of self coupling power transformation device AT is through earthing switch 16QS ground connection;
The R end of self coupling power transformation device AT connects the rail service conductor;
Above-mentioned first, second high pressure combined electrical apparatus is arranged in the SF6 air chamber, and the SF6 air chamber is installed on the steel framework.
Above-mentioned SF6 air chamber is one or more.
Also be equipped with on the above-mentioned steel framework as integrated control cabinet and operating mechanism that secondary device is installed.
The utility model proposes the general structural shape of main electrical scheme of the full segmentation parallel operation mode of institute in parallel (switchyard) under the electric railway traction power supply system contact system parallel operation mode and the AT institute general structural shape of main electrical scheme of segmentation parallel operation mode entirely.
Compared with prior art, this later-model beneficial effect is:
The utility model is provided with 4 power supply zones by the main electrical scheme of full segmentation parallel operation mode to the uplink and downlink feeding section.No matter any one power supply zone contact system scheduled outage can both guarantee to keep higher traction power supply ability.Any one power supply zone contact system fault no matter, the power failure scope all is contracted to a power supply zone.Behind various types of failure removals, the power supply zone impedance loop of operation is still less, has kept higher traction power supply ability.
The utility model not only provides has realized improving most possibly the power equipment supply operation efficiency better, power failure section length when reducing the contact system fault, further improve the mode and the equipment of power supply capacity, but also provide simplicity very for engineering construction installation, equipment operation management.
Description of drawings
Fig. 1 is the parallel connection main electrical scheme constructional drawing in parallel of an embodiment of the utility model.
Fig. 2 is the AT main electrical scheme constructional drawing in parallel of another embodiment of the utility model.
Fig. 3-1, Fig. 3-2, Fig. 3-3(three are collectively referred to as Fig. 3) be respectively first kind of high pressure combined electrical apparatus shown in Figure 1 (being the section switch group, down together) front view, left view and birds-eye view.
Fig. 4 is the cut-away drawing of first kind of high pressure combined electrical apparatus shown in Fig. 3-1, Fig. 3-2, Fig. 3-3.
Fig. 5-1, Fig. 5-2, Fig. 5-3(three are collectively referred to as Fig. 5) be respectively front view, left view and the birds-eye view of second kind of high pressure combined electrical apparatus shown in Figure 2.
Fig. 6 is the cut-away drawing of the second high pressure combined electrical apparatus shown in Figure 5.
The specific embodiment
Among the figure, 1, insulating tube; 2, current transformer; 3, bus in parallel; 4, SF6 air chamber; 5, steel framework; 6, steel strut; 7, integrated control cabinet (being installed on the steel framework); 8, operating mechanism (being installed on the steel framework); 9, bus leading-out terminal in parallel.
Fig. 1, Fig. 3, Fig. 4 illustrate, the full segmentation parallel operation of a kind of electric railway traction power supply system contact system system, the high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group structure is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing 1;
Be connected to a descending feeding section behind the 1st external connection terminal A of the 1st section switch group serial connection disconnector 9QS, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C of the 3rd section switch group serial connection disconnector 11QS, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B of the 2nd section switch group serial connection disconnector 10QS, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D of the 4th section switch group serial connection disconnector 12QS, the 4th external connection terminal is connected in series fuse 4FU and voltage transformer 4TV external ground in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
Above-mentioned high pressure combined electrical apparatus is arranged in the SF6 air chamber 4, and the SF6 air chamber is installed on the steel framework 5.
Fig. 2, Fig. 5, Fig. 6 illustrate, the full segmentation parallel operation of a kind of electric railway traction power supply system contact system system, the first high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group mechanism is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing 1;
Be connected to a descending feeding section behind the 1st external connection terminal A serial connection disconnector 9QS of the 1st section switch group of the 1st high pressure combined electrical apparatus, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C serial connection disconnector 11QS of the 3rd section switch group of the 1st high pressure combined electrical apparatus, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B serial connection disconnector 10QS of the 2nd section switch group of the 1st high pressure combined electrical apparatus, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D serial connection disconnector 12QS of the 4th section switch group of the 1st high pressure combined electrical apparatus, the 4th external connection terminal is connected in series ground connection behind fuse 4FU and the voltage transformer 4TV in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
The second high pressure combined electrical apparatus has and the identical structure of the above-mentioned first high pressure combined electrical apparatus:
The 1st external connection terminal A of the 1st section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 9
,Be connected to descending positive feeder Fx behind the QS, this terminal A
,Be connected in series fuse 1 in turn
,FU and voltage transformer 1
,Ground connection behind the TV, this terminal A
,Serial connection lightning arrester 1
,Ground connection behind the F;
The 3rd external connection terminal C of the 3rd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 11
,Be connected to descending positive feeder Fx behind the QS, this terminal C
,Be connected in series fuse 3 in turn
,FU and voltage transformer 3
,Ground connection behind the TV, this terminal C
,Serial connection lightning arrester 3
,Ground connection behind the F;
The 2nd external connection terminal B of the 2nd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 10
,Be connected to up positive feeder Fs behind the QS, this terminal B
,Be connected in series fuse 2 in turn
,FU and voltage transformer 2
,Ground connection behind the TV, this terminal B
,Serial connection lightning arrester 2
,Ground connection behind the F;
The 4th external connection terminal D of the 4th section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 12
,Be connected to up positive feeder Fs behind the QS, this terminal D
,Be connected in series fuse 4 in turn
,FU and voltage transformer 4
,Ground connection behind the TV, this terminal D
,Serial connection lightning arrester 4
,Ground connection behind the F;
The bus Bb in parallel of the above-mentioned first high pressure combined electrical apparatus is connected in series the F end that is connected to self coupling power transformation device AT behind circuit breaker 13QF, the disconnector 3QS in turn, and the F end of self coupling power transformation device AT is through earthing switch 15QS ground connection;
The bus Bb in parallel of the above-mentioned second high pressure combined electrical apparatus
,Be connected in series the T end that is connected to self coupling power transformation device AT behind circuit breaker 14QF, the disconnector 14QS in turn, the T end of self coupling power transformation device AT is through earthing switch 16QS ground connection;
The R end of self coupling power transformation device AT connects the rail service conductor;
Above-mentioned first, second high pressure combined electrical apparatus is arranged in the SF6 air chamber 4, and the SF6 air chamber is installed in (among Fig. 2, two up feeding sections all are connected with up contact system Ts, and two descending feeding sections all are connected with descending contact system Tx) on the steel framework 5.
The utility model provides 2 kinds of high pressure combined electrical apparatus structural shapes, can satisfy the needs that bus Bb in parallel wiring is not drawn (Fig. 3-1, Fig. 3-2, Fig. 3-3) or drawn (Fig. 5-1, Fig. 5-2, Fig. 5-3).The high pressure combined electrical apparatus structural shape that needs bus to draw generally can be used for respectively T line and F line being carried out also tie with 2 combined electrical apparatuses in the AT institute of parallel operation.Fig. 4, Fig. 6 are respectively the inside main electrical scheme of Fig. 3, Fig. 5.
The main electrical scheme structure in parallel that the utility model proposes, be that a end by 4 section switch groups is connected to uplink and downlink two feeding sections, respectively 2 feeding sections respectively are divided into 2 sections totally 4 power supply zones, descending feeding section is divided into power supply zone 1,3, up feeding section is divided into power supply zone 2,4; The other end of 4 section switch groups is connected on the bus in parallel of mid point, constitutes the mode of full segmentation parallel operation.According to the application of different location, constructional drawing is divided into Fig. 1 and Fig. 2.
The main electrical scheme structure of Fig. 1: it is to be connected with the A terminal of combined electrical apparatus by disconnector 9QS that power supply zone 1 inserts section post, and the voltage of control and protection is taken from voltage transformer 1TV; It is to be connected with the B terminal of combined electrical apparatus by disconnector 10QS that power supply zone 2 inserts section post, and the voltage of control and protection is taken from voltage transformer 2TV; It is to be connected with the C terminal of combined electrical apparatus by disconnector 11QS that power supply zone 3 inserts section post, and the voltage of control and protection is taken from voltage transformer 3TV; It is to be connected with the D terminal of combined electrical apparatus by disconnector 12QS that power supply zone 4 inserts section post, and the voltage of control and protection is taken from voltage transformer 4TV.1FU～4FU is the protection fuse that voltage transformer inserts, and 1FU～4F is the lightning arrester that prevents that the circuit thunder and lightning from invading.Above-mentioned A terminal outer end connects descending feeding section, and B terminal outer end connects up feeding section, and C terminal outer end connects another descending feeding section, and D terminal outer end connects another up feeding section, is divided into 4 power supply zones, and is identical among Fig. 2, Fig. 4, Fig. 6).
The main electrical scheme structure of Fig. 2: similar with Fig. 1, different is that so T and F line must be drawn from bus in parallel, terminal is designated E, E because need insert autotransformer AT at AT
," T " end of autotransformer AT is received on the outside T bus in parallel by 14QF, 14QS, and " F " end is received on the outside F bus in parallel by 13QF, 13QS, and " R " terminates on the rail service conductor.Contact system T is identical with the cut-in method of positive feeder F, and the device numbering of positive feeder is in the subscript ", " of all having done of the same race, up feeding section subscript " s ", descending feeding section subscript " x ".
The high pressure combined electrical apparatus that the utility model provides, contour structures such as Fig. 3 and Fig. 5.Mainly be to be assemblied in (or more than one a) SF6 air chamber by primary equipment summations such as circuit breaker group (comprising: circuit breaker Q F, disconnector QS, earthing switch QS, current transformer), bus Bb in parallel; Secondary devices such as control and protective relaying device are assemblied in the integrated control cabinet; On the steel framework assembly once above-mentioned and secondary device.
The high pressure combined electrical apparatus internal wiring figure that provides for the utility model in the frame of broken lines among Fig. 1 and Fig. 2 is with Fig. 4 and Fig. 6.The 1st section switch group comprises 1QF, 1QS, 1TA, 5QS; The 2nd section switch group comprises 2QF, 2QS, 2TA, 6QS; The 3rd section switch group comprises 3QF, 3QS, 3TA, 7QS; The 4th section switch group comprises 4QF, 4QS, 4TA, 8QS.In the section switch group an end be connected on the bus Bb in parallel, an other end is drawn as the external connection terminal by bushing, is designated A, B, C, D respectively.Fig. 2 and Fig. 6 are the high pressure combined electrical apparatuses that the band bus is drawn, and leading-out terminal is designated E and E
,
Claims (6)
1. the full segmentation parallel operation of electric railway traction power supply system contact system system, it is characterized in that: the high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group structure is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing (1);
Be connected to a descending feeding section behind the 1st external connection terminal A of the 1st section switch group serial connection disconnector 9QS, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C of the 3rd section switch group serial connection disconnector 11QS, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B of the 2nd section switch group serial connection disconnector 10QS, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D of the 4th section switch group serial connection disconnector 12QS, the 4th external connection terminal is connected in series fuse 4FU and voltage transformer 4TV external ground in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
Above-mentioned high pressure combined electrical apparatus is arranged in the SF6 air chamber (4), and the SF6 air chamber is installed on the steel framework (5).
2. the full segmentation parallel operation of electric railway traction power supply system contact system according to claim 1 system is characterized in that: described SF6 air chamber (4) is one or more.
3. the full segmentation parallel operation of electric railway traction power supply system contact system according to claim 2 system is characterized in that: also be equipped with on the described steel framework (5) as integrated control cabinet (7) and operating mechanism (8) that secondary device is installed.
4. the full segmentation parallel operation of electric railway traction power supply system contact system system, it is characterized in that: the first high pressure combined electrical apparatus is made of 4 identical section switch groups of structure, wherein, the 1st section switch group mechanism is: disconnector 1QS one end is connected to bus Bb in parallel after connecting circuit breaker 1QF, ground connection behind the disconnector 1QS one end series connection earthing switch 5QS, current transformer 1TA snare is on the disconnector 1QS other end, and the disconnector 1QS other end is drawn as the 1st external connection terminal A through bushing (1);
Be connected to a descending feeding section behind the 1st external connection terminal A serial connection disconnector 9QS of the 1st section switch group of the 1st high pressure combined electrical apparatus, the 1st external connection terminal is connected in series ground connection behind fuse 1FU and the voltage transformer 1TV in turn, and the 1st external terminal substring connects ground connection behind the lightning arrester 1F;
Be connected to another descending feeding section behind the 3rd external connection terminal C serial connection disconnector 11QS of the 3rd section switch group of the 1st high pressure combined electrical apparatus, the 3rd external connection terminal is connected in series ground connection behind fuse 3FU and the voltage transformer 3TV in turn, and the 3rd external terminal substring connects ground connection behind the lightning arrester 3F;
Be connected to a up feeding section behind the 2nd external connection terminal B serial connection disconnector 10QS of the 2nd section switch group of the 1st high pressure combined electrical apparatus, the 2nd external connection terminal is connected in series ground connection behind fuse 2FU and the voltage transformer 2TV in turn, and the 2nd external terminal substring connects ground connection behind the lightning arrester 2F;
Be connected to another up feeding section behind the 4th external connection terminal D serial connection disconnector 12QS of the 4th section switch group of the 1st high pressure combined electrical apparatus, the 4th external connection terminal is connected in series ground connection behind fuse 4FU and the voltage transformer 4TV in turn, and the 4th external terminal substring connects ground connection behind the lightning arrester 4F;
The second high pressure combined electrical apparatus has and the identical structure of the above-mentioned first high pressure combined electrical apparatus:
The 1st external connection terminal A of the 1st section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 9
,Be connected to descending positive feeder Fx behind the QS, this terminal A
,Be connected in series fuse 1 in turn
,FU and voltage transformer 1
,Ground connection behind the TV, this terminal A
,Serial connection lightning arrester 1
,Ground connection behind the F;
The 3rd external connection terminal C of the 3rd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 11
,Be connected to descending positive feeder Fx behind the QS, this terminal C
,Be connected in series fuse 3 in turn
,FU and voltage transformer 3
,Ground connection behind the TV, this terminal C
,Serial connection lightning arrester 3
,Ground connection behind the F;
The 2nd external connection terminal B of the 2nd section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 10
,Be connected to up positive feeder Fs behind the QS, this terminal B
,Be connected in series fuse 2 in turn
,FU and voltage transformer 2
,Ground connection behind the TV, this terminal B
,Serial connection lightning arrester 2
,Ground connection behind the F;
The 4th external connection terminal D of the 4th section switch group of the second high pressure combined electrical apparatus
,Serial connection disconnector 12
,Be connected to up positive feeder Fs behind the QS, this terminal D
,Be connected in series fuse 4 in turn
,FU and voltage transformer 4
,Ground connection behind the TV, this terminal D
,Serial connection lightning arrester 4
,Ground connection behind the F;
The bus Bb in parallel of the above-mentioned first high pressure combined electrical apparatus is connected in series the F end that is connected to self coupling power transformation device AT behind circuit breaker 13QF, the disconnector 3QS in turn, and the F end of self coupling power transformation device AT is through earthing switch 15QS ground connection;
The bus Bb in parallel of the above-mentioned second high pressure combined electrical apparatus
,Be connected in series the T end that is connected to self coupling power transformation device AT behind circuit breaker 14QF, the disconnector 14QS in turn, the T end of self coupling power transformation device AT is through earthing switch 16QS ground connection;
The R end of self coupling power transformation device AT connects the rail service conductor;
Above-mentioned first, second high pressure combined electrical apparatus is arranged in the SF6 air chamber (4), and the SF6 air chamber is installed on the steel framework (5).
5. the full segmentation parallel operation of electric railway traction power supply system contact system according to claim 4 system is characterized in that: described SF6 air chamber is one or more.
6. the full segmentation parallel operation of electric railway traction power supply system contact system according to claim 5 system is characterized in that: also be equipped with on the described steel framework (5) as integrated control cabinet (7) and operating mechanism (8) that secondary device is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200752861U CN201951278U (en) | 2011-03-22 | 2011-03-22 | All-subsection shunt-wound power supply system for contact net of electrified railway traction power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200752861U CN201951278U (en) | 2011-03-22 | 2011-03-22 | All-subsection shunt-wound power supply system for contact net of electrified railway traction power supply system |
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| CN201951278U true CN201951278U (en) | 2011-08-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299493A (en) * | 2011-09-08 | 2011-12-28 | 云南云开电气股份有限公司 | Double circuit breaker electrified railway 27.5kV gas insulated switchgear (GIS) |
| CN109532573A (en) * | 2018-09-25 | 2019-03-29 | 苏州万龙电气集团股份有限公司 | A kind of contact net emergency contact method of supplying power to based on cloud service |
| WO2019169950A1 (en) * | 2018-03-07 | 2019-09-12 | 信承瑞技术有限公司 | Railway power supply system and outdoor parallel modular device for railway power supply system |
| CN112677831A (en) * | 2019-10-17 | 2021-04-20 | 中铁二院工程集团有限责任公司 | Gridding power supply method applied to multi-line electrified railway |
-
2011
- 2011-03-22 CN CN2011200752861U patent/CN201951278U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299493A (en) * | 2011-09-08 | 2011-12-28 | 云南云开电气股份有限公司 | Double circuit breaker electrified railway 27.5kV gas insulated switchgear (GIS) |
| CN102299493B (en) * | 2011-09-08 | 2015-01-14 | 云南云开电气股份有限公司 | Double circuit breaker electrified railway 27.5kV gas insulated switchgear (GIS) |
| WO2019169950A1 (en) * | 2018-03-07 | 2019-09-12 | 信承瑞技术有限公司 | Railway power supply system and outdoor parallel modular device for railway power supply system |
| CN109532573A (en) * | 2018-09-25 | 2019-03-29 | 苏州万龙电气集团股份有限公司 | A kind of contact net emergency contact method of supplying power to based on cloud service |
| CN112677831A (en) * | 2019-10-17 | 2021-04-20 | 中铁二院工程集团有限责任公司 | Gridding power supply method applied to multi-line electrified railway |
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