CN213093876U - Outdoor box type dynamic reactive power compensation device - Google Patents
Outdoor box type dynamic reactive power compensation device Download PDFInfo
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- CN213093876U CN213093876U CN202021710794.8U CN202021710794U CN213093876U CN 213093876 U CN213093876 U CN 213093876U CN 202021710794 U CN202021710794 U CN 202021710794U CN 213093876 U CN213093876 U CN 213093876U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model provides an outdoor box dynamic reactive power compensator, be connected with railway electric power system and insert the copper busbar in the outdoor cabinet and support through post insulator and be fixed in the outdoor box in, the outdoor box is inside to be equipped with capacitor bank cabinet and install three-phase capacitor group, be equipped with the isolator of taking ground connection on the copper busbar, three-phase magnetic control reactor group is installed to capacitor bank cabinet one side, and parallelly connected on the copper busbar after three-phase magnetic control reactor group and three-phase capacitor group are connected through copper bar and isolator. The utility model discloses a with the integrated copper bus that installs three-phase capacitor group and three-phase magnetic control reactor group in the outdoor box and be connected with railway electric power system parallelly connected, control three-phase magnetic control reactor group sends the inductive reactive power volume and guarantees that railway electric power system's reactive power volume is in reasonable scope all the time, realizes railway electric power system's dynamic reactive compensation function, whole device design compactness, has reduced area, has reduced the equipment investment.
Description
Technical Field
The utility model belongs to the technical field of the railway power transmission and transformation, concretely relates to outdoor box dynamic reactive power compensator.
Background
In recent years, the construction of electrified railways in China enters a high-speed development stage. According to the middle and long-term railway network planning (2016-. The requirements on the quality and the process of the product are high because of the common particularity of the railway industry, long railway lines, severe product operation environment and no fixed personnel for maintenance. The existing box type reactive compensation product generally has the problems of rough product workmanship, low protection level, poor corrosion resistance, unreasonable internal structure layout of the product and the like, and cannot meet the market demand. Therefore, in view of the above problems, there is a need for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the utility model provides an outdoor box dynamic reactive power compensation device, through with the three-phase capacitor bank of integrated installation in outdoor box with three-phase magnetic control reactor group with the copper bus that railway power system is connected parallelly connected, control three-phase magnetic control reactor group and send the inductive reactive power volume and guarantee that railway power system's reactive power volume is in reasonable scope all the time to realize railway power system's dynamic reactive power compensation function, whole device design is compact, area has been reduced, realize installing side by side with other components and parts, equipment investment has been reduced, economy has been improved.
The utility model adopts the technical proposal that: outdoor box dynamic reactive power compensator, including outdoor box, be connected and insert with railway power system copper bus in the outdoor box supports through post insulator and is fixed in the outdoor box, outdoor box inside installs three-phase capacitor group in being equipped with capacitor bank cabinet and the capacitor bank cabinet, be equipped with the isolator of taking ground connection on the copper bus, three-phase magnetic control reactor group is installed to capacitor bank cabinet one side, and parallelly connected on copper bus after three-phase magnetic control reactor group and three-phase capacitor group are connected through copper bar and isolator.
Wherein, the three-phase capacitor banks all comprise a single capacitor, a vacuum contactor, a spraying-chasing type fuse, a series reactor, a lightning arrester and a discharge coil, the wire inlet end of the vacuum contactor is connected with one wire outlet end of the isolating switch through a copper bar, the wire outlet end of the vacuum contactor is connected with a single capacitor in series through the spraying-type fuse, the wire inlet side of the spraying-stepping fuse is connected with a lightning arrester and a discharge coil which form a parallel structure with the spraying-stepping fuse and a single capacitor, the lightning arrester and the discharge coil are mutually connected in parallel, the outlet end of the lightning arrester is grounded, the outlet side of the single capacitor is connected with the series reactor in series, two wiring ends formed by the sealing of the outlet side of the series reactor are respectively connected with wiring ends at the sealing of the outlet side of the series reactor in the other two-phase capacitor bank, so that the three-phase capacitor bank forms a single star-shaped connection structure.
Furthermore, the three-phase magnetic control reactor group comprises a magnetic control reactor, a current transformer, an arrester I and a valve group, wherein the inlet end of the current transformer is connected with the other outlet end of the isolating switch through a copper bar, the arrester I is connected in parallel on the current transformer, the outlet end of the arrester I is grounded, the outlet end of the current transformer is connected in series with the inlet end of the magnetic control reactor, the internal short circuit of the outlet end of the magnetic control reactor in the three-phase magnetic control reactor group forms an angle connection structure, the valve group is connected in parallel with the connector lug of the magnetic control reactor, and the control of sending inductive reactive power to the magnetic control reactor is completed through the connection or the disconnection of the valve group.
Furthermore, the lightning arrester and the lightning arrester I adopt zinc oxide lightning arresters.
Furthermore, a wire casing used for connecting an internal secondary control loop is fixed on the periphery inside the outdoor box body.
Furthermore, a secondary junction box for mounting a secondary control loop is arranged in the outdoor box body.
Furthermore, an intelligent temperature control device and an auxiliary heat dissipation device are arranged inside the outdoor box body.
Further, the auxiliary heat dissipation device comprises an axial flow fan and a heat dissipation fan used for heat dissipation of the magnetic control reactors in the magnetic control reactor group.
Furthermore, the copper bar adopts a through type bus bar copper bar to connect the three-phase magnetic control reactor group and the three-phase capacitor group in parallel on the copper bus.
The utility model has the advantages compared with the prior art:
1. according to the technical scheme, the three-phase capacitor bank and the three-phase magnetic control reactor bank which are integrally installed in the outdoor box body are connected in parallel with the copper bus connected with the railway power system, and the three-phase magnetic control reactor bank is controlled to generate inductive reactive power to ensure that the reactive power of the railway power system is always in a reasonable range, so that the dynamic reactive power compensation function of the railway power system is realized;
2. according to the technical scheme, the copper bus connected with the railway power system is supported and fixed in the outdoor box body through the post insulator, and the post insulator plays a role in supporting the copper bus on one hand and can ensure the insulation between the copper bus and the outdoor box body on the other hand, so that the normal and safe use of equipment is ensured;
3. according to the technical scheme, the intelligent temperature control equipment and the auxiliary heat dissipation device are arranged in the outdoor box body, so that the situation that components are burnt due to overhigh temperature rise in the outdoor box body can be prevented, and a proper working temperature is provided for the equipment, so that the service life of the equipment is prolonged;
4. the whole device of the technical scheme has compact design and convenient field installation, reduces the occupied area, realizes the parallel installation with other components, reduces the equipment investment, is free from maintenance, has high protection level and improves the economical efficiency.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a left side view of the structure of the present invention;
fig. 3 is a schematic diagram of a primary wiring of the present invention.
Detailed Description
An embodiment of the present invention will be described in conjunction with fig. 1-3 to clearly and completely describe the technical solution, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In order to be used for 10kV railway electric power system's outdoor box dynamic reactive power compensator, including outdoor box 1, be connected with railway electric power system and insert 10kV copper bus 2 in the outdoor box 1 supports through post insulator 3 and is fixed in outdoor box 1, install three-phase capacitor group 5 in 1 inside capacitor bank cabinet 4 and the capacitor bank cabinet 4 of being equipped with of outdoor box, be equipped with isolator 7 of taking ground connection on the copper bus 2, three-phase magnetic control reactor group 6 is installed to 4 one sides of capacitor bank cabinet, and connects in parallel on copper bus 2 after three-phase magnetic control reactor group 6 and three-phase capacitor group 5 are connected through copper bar and isolator 7.
Specifically, each three-phase capacitor group 5 comprises a single capacitor 5-1, a vacuum contactor 5-2, a spraying-stepping fuse 5-3, a series reactor 5-4, an arrester 5-5 and a discharge coil 5-6, wherein a wire inlet end of the vacuum contactor 5-2 is connected with a wire outlet end of an isolating switch 7 through a copper bar, a wire outlet end of the vacuum contactor 5-2 is connected with the single capacitor 5-1 through the spraying-stepping fuse 5-3 in series, a wire inlet side of the spraying-stepping fuse 5-3 is connected with the arrester 5-5 and the discharge coil 5-6 which form a parallel structure with the spraying-stepping fuse 5-3 and the single capacitor 5-1, the arrester 5-5 and the discharge coil 5-6 are mutually connected in parallel, the wire outlet end of the arrester 5-5 is grounded, the outlet side of the single capacitor 5-1 is connected with a series reactor 5-4 in series, and two terminals formed by sealing the outlet side of the series reactor 5-4 are respectively connected with terminals at the sealing of the outlet side of the series reactor 5-4 in the other two-phase capacitor bank 5, so that the three-phase capacitor bank 5 forms a single star-shaped connection structure; specifically, the lightning arrester 5-5 adopts a zinc oxide lightning arrester;
in the structure of the three-phase capacitor bank 5, a single capacitor 5-1 is connected in parallel in a system and used for emitting capacitive reactive components, and a vacuum contactor 5-2 is used for frequently switching on and off switching equipment of the capacitor bank, so that the single capacitor 5-1 is switched on or off; the spraying-type fuse 5-3 is used for limiting the fault of the single capacitor 5-1 to be cut off in a short time after the fault of the single capacitor 5-1, so that the accident is prevented from being enlarged; the series reactor 5-4 is used for inhibiting system harmonic waves and limiting the action of switching-on inrush current; the lightning arrester 5-5 is used for limiting equipment with lightning surge overvoltage and operation overvoltage and protecting other components from being damaged; the discharge coil 5-6 is used for reducing the residual voltage at two ends of the single capacitor 5-1 to be below a specified value after the capacitor bank is powered off, and simultaneously can also provide a voltage signal for relay protection; the isolating switch 7 is used for equipment maintenance and provides an obvious disconnection point.
Specifically, the three-phase magnetically controlled reactor groups 6 respectively comprise magnetically controlled reactors 6-1, current transformers 6-2, lightning arresters I6-3 and valve groups 6-4, the wire inlet end of each current transformer 6-2 is connected with the other wire outlet end of the isolating switch 7 through a copper bar, the lightning arresters I6-3 are connected in parallel on the current transformers 6-2, the wire outlet ends of the lightning arresters I6-3 are grounded, the wire outlet end of each current transformer 6-2 is connected in series with the wire inlet end of the magnetically controlled reactor 6-1, the wire outlet ends of the magnetically controlled reactors 6-1 in the three-phase magnetically controlled reactor groups 6 are internally short-circuited to form an angle joint structure, the valve groups 6-4 are connected in parallel with the connector terminals of the magnetically controlled reactors 6-1, and the control of the inductive reactive power of the magnetically controlled reactors 6-1 is completed through the connection or the disconnection of the, the structure forms a sensitive reactive power regulation branch; specifically, the lightning arrester I6-3 adopts a zinc oxide lightning arrester.
Specifically, wire grooves for connecting an internal secondary control loop are fixed on the periphery inside the outdoor box body 1; specifically, a secondary junction box for mounting a secondary control loop is arranged in the outdoor box body 1; specifically, intelligent temperature control equipment and an auxiliary heat dissipation device are arranged inside the outdoor box body 1; specifically, the auxiliary heat dissipation device comprises an axial flow fan and a heat dissipation fan for dissipating heat of a magnetically controlled reactor 6-1 in the magnetically controlled reactor group 6; specifically, the copper bar adopts a through type confluence copper bar to connect the three-phase magnetic control reactor group 6 and the three-phase capacitor group 5 in parallel on the copper bus bar 2;
in the three-phase magnetic control reactor group 6, a magnetic control reactor 6-1 is connected in parallel in a 10kV power system and used for generating inductive reactive power; the current transformer 6-2 is connected in series in a loop of the magnetically controlled reactor 6-1, is used for measuring the current in the loop of the magnetically controlled reactor 6-1, and can be used for sampling a current protection signal in the loop of the magnetically controlled reactor 6-1; the lightning arrester I6-3 is used for limiting equipment with lightning surge overvoltage and operation overvoltage and protecting other equipment in the magnetic control reactor group 6 from being damaged by the overvoltage; the valve group 6-4 is mainly used for receiving a command of the controller to switch on or off the current of the winding of the magnetically controlled reactor 6-1, so that the inductance and susceptance of the magnetically controlled reactor 6-1 are changed, and the output capacity of the magnetically controlled reactor 6-1 is dynamically adjusted.
The technical scheme is that a three-phase capacitor bank 5 and a three-phase magnetic control reactor bank 6 which are integrally installed in an outdoor box body 1 are connected in parallel with a copper bus 2 connected with a railway power system, the magnetic control reactor 6-1 is controlled to emit inductive reactive power through a valve bank 6-4 to ensure that the reactive power of the railway power system is always in a reasonable range, so that the dynamic reactive power compensation function of the railway power system is realized, the copper bus 2 connected with the railway power system is fixed in the outdoor box body 1 through a support insulator support 3, the support insulator 3 plays a supporting role on the copper bus 2 on one hand, on the other hand, the insulation between the copper bus 2 and the outdoor box body 1 can be ensured, the normal and safe use of equipment is ensured, intelligent temperature control equipment and auxiliary heat dissipation devices are arranged in the outdoor box body 1, and the phenomenon that the temperature in the outdoor box body, the device has the advantages that the device provides proper working temperature for equipment, so that the service life of the equipment is prolonged, the whole device is compact in design and convenient to install on site, the occupied area is reduced, the device is installed in parallel with other components, the equipment investment is reduced, the device is free from maintenance, the protection level is high, and the economy is improved.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. Outdoor box dynamic reactive power compensator, including outdoor box (1), its characterized in that: be connected with railway power system and insert copper bus (2) in outdoor box (1) support through post insulator (3) and be fixed in outdoor box (1), install three-phase capacitor group (5) in outdoor box (1) inside capacitor bank cabinet (4) and capacitor bank cabinet (4) of being equipped with, be equipped with isolator (7) of taking ground connection on copper bus (2), three-phase magnetic control reactor group (6) are installed to capacitor bank cabinet (4) one side, and parallelly connected on copper bus (2) after three-phase magnetic control reactor group (6) and three-phase capacitor group (5) are connected through copper bar and isolator (7).
2. The outdoor box type dynamic reactive power compensation device according to claim 1, wherein: the three-phase capacitor bank (5) comprises a single capacitor (5-1), a vacuum contactor (5-2), a spraying and stepping fuse (5-3), a series reactor (5-4), a lightning arrester (5-5) and a discharge coil (5-6), wherein the wire inlet end of the vacuum contactor (5-2) is connected with one wire outlet end of an isolating switch (7) through a copper bar, the wire outlet end of the vacuum contactor (5-2) is connected with the single capacitor (5-1) in series through the spraying and stepping fuse (5-3), the wire inlet side of the spraying and stepping fuse (5-3) is connected with the lightning arrester (5-5) and the discharge coil (5-6) which form a parallel structure with the spraying and stepping fuse (5-3) and the single capacitor (5-1), the lightning arrester (5-5) and the discharge coil (5-6) are connected in parallel, and the lightning arrester (5-5) and the discharge coil (5-6) are connected in parallel with each The outlet end of the capacitor bank (5) is grounded, the outlet side of the single capacitor (5-1) is connected with a series reactor (5-4) in series, and two terminals formed by the outlet side seal of the series reactor (5-4) are respectively connected with the terminals formed by the outlet side seal of the series reactor (5-4) in the other two-phase capacitor bank (5) to enable the three-phase capacitor bank (5) to form a single star-shaped connection structure.
3. The outdoor box type dynamic reactive power compensation device according to claim 2, wherein: the three-phase magnetic control reactor group (6) comprises magnetic control reactors (6-1), current transformers (6-2), lightning arresters I (6-3) and valve banks (6-4), wherein the wire inlet end of each current transformer (6-2) is connected with the other wire outlet end of the isolating switch (7) through a copper bar, the lightning arresters I (6-3) are connected in parallel on the current transformers (6-2), the wire outlet ends of the lightning arresters I (6-3) are grounded, the wire outlet ends of the current transformers (6-2) are connected with the wire inlet end of the magnetic control reactor (6-1) in series, the wire outlet ends of the magnetic control reactors (6-1) in the three-phase magnetic control reactor group (6) are internally short-circuited to form an angle connection structure, and the valve banks (6-4) are connected with the wire connectors of the magnetic control reactors (6-1) in parallel, and the control of the inductive reactive power quantity sent out by the magnetically controlled reactor (6-1) is completed through the on or off of the valve group (6-4).
4. The outdoor box type dynamic reactive power compensation device according to claim 3, wherein: and the lightning arresters (5-5) and the lightning arrester I (6-3) both adopt zinc oxide lightning arresters.
5. Outdoor box-type dynamic reactive compensation device according to any one of claims 1 to 4, characterized in that: and a wire groove for connecting an internal secondary control loop is fixed around the inside of the outdoor box body (1).
6. The outdoor box type dynamic reactive power compensation device according to claim 5, wherein: the outdoor box body (1) is internally provided with a secondary junction box for installing a secondary control loop.
7. The outdoor box type dynamic reactive power compensation device according to claim 6, wherein: the outdoor box body (1) is internally provided with an intelligent temperature control device and an auxiliary heat dissipation device.
8. The outdoor box type dynamic reactive power compensation device according to claim 7, wherein: the auxiliary heat dissipation device comprises an axial flow fan and a heat dissipation fan used for heat dissipation of a magnetic control reactor (6-1) in the magnetic control reactor group (6).
9. The outdoor box type dynamic reactive power compensation device according to claim 8, wherein: the copper bar adopts a through type confluence copper bar to connect the three-phase magnetic control reactor group (6) and the three-phase capacitor group (5) on the copper bus (2) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021710794.8U CN213093876U (en) | 2020-08-17 | 2020-08-17 | Outdoor box type dynamic reactive power compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021710794.8U CN213093876U (en) | 2020-08-17 | 2020-08-17 | Outdoor box type dynamic reactive power compensation device |
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| Publication Number | Publication Date |
|---|---|
| CN213093876U true CN213093876U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021710794.8U Active CN213093876U (en) | 2020-08-17 | 2020-08-17 | Outdoor box type dynamic reactive power compensation device |
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| CN (1) | CN213093876U (en) |
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- 2020-08-17 CN CN202021710794.8U patent/CN213093876U/en active Active
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