CN217495883U - Full-standby main wiring circuit, device and ground control automatic neutral section passing system - Google Patents
Full-standby main wiring circuit, device and ground control automatic neutral section passing system Download PDFInfo
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- CN217495883U CN217495883U CN202221592943.4U CN202221592943U CN217495883U CN 217495883 U CN217495883 U CN 217495883U CN 202221592943 U CN202221592943 U CN 202221592943U CN 217495883 U CN217495883 U CN 217495883U
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Abstract
The utility model discloses a full-standby main wiring circuit, device and ground control automatic passing neutral section system, the circuit includes: the intelligent load switch comprises an A, B-phase power supply branch and a neutral zone branch which are connected in series, wherein one end of an outdoor overhauling electric isolating switch is connected with the mutual connection end of an A-phase electronic switch of the A-phase power supply branch and a B-phase electronic switch of a B-phase power supply branch, and the other end of the outdoor overhauling isolating switch is connected with one end of the intelligent load switch and one end of the intelligent load switch in parallel with the A-phase electronic switch and the B-phase electronic switch in parallel with the B-phase electronic switch and is connected with the upper end of the neutral zone branch; the A-phase maintenance electric isolating switch is connected between an A-phase electronic switch of the A-phase power supply branch and an A-phase series intelligent load switch; and the B-phase maintenance electric isolating switch is connected between a B-phase electronic switch of the B-phase power supply branch and the B-phase series intelligent load switch. This circuit passes through three electronic isolator of maintenance, can realize that the space of installation electronic switch is the electroless environment, promotes maintenance safety convenience.
Description
Technical Field
The utility model relates to a ground control automatic passing neutral section field of electrified railway power supply especially relates to a full standby main connection circuit, device and ground control automatic passing neutral section system.
Background
At present, in an electrified railway adopting a power frequency single-phase 25kV alternating current power supply system, a ground control automatic electrified neutral section passing device automatically identifies and judges the position of a train, a logic control subsystem is started, and the neutral section of the electric neutral section of a contact network is switched into an A-phase traction power supply and a B-phase traction power supply in an alternating switching sequence by utilizing intelligent switching, breaking, closing and breaking of two main electronic switches, wherein the switching power-off time is less than 40 ms. The locomotive traction/braking force and the running speed of the locomotive are kept, the comprehensive railway transportation efficiency is improved, and the transportation safety and reliability of the electric locomotive application and traction power supply operation are ensured. The ground control automatic live neutral section passing system applied to engineering has four types, respectively: the system comprises an intelligent vacuum load switch, a ground automatic electrified neutral section passing device, a ground electronic switch automatic neutral section passing device, a contact network neutral section continuous power supply system and a heavy haul railway intelligent neutral section passing device, wherein the intelligent vacuum load switch is a ground automatic electrified neutral section passing device 1, the ground electronic switch automatic neutral section passing device is a ground electronic switch automatic neutral section passing device 3, and the heavy haul railway intelligent neutral section passing device is a heavy haul railway intelligent neutral section passing device 4; the main wiring, the switch equipment model selection, the automatic control data logic platform and the actual application inspection of the 1 st and 2 nd devices are provided with main switch redundancy independent working unit subsystems and standby switch redundancy independent working unit subsystems. The main connections of the main connection are all called full standby main connections; the difference between the two types is that the main switches are different, the intelligent vacuum load switch is mainly used as an intelligent vacuum load switch, and the ground electronic switch automatic neutral section passing device is mainly used as a power electronic thyristor switch. The 3 rd and 4 th devices use the inspection, and do not have redundant independent working units and functions of the standby switch.
The existing thyristor valve group electronic switch of the ground control automatic electrified neutral section passing system is supported by an insulator, and a fixed type group frame is arranged in a 27.5kV high-voltage chamber and cannot be moved out for maintenance, so that only a local maintenance mode can be adopted. However, the fully-standby main wiring circuits of these two devices do not have flexible and partitioned control functions. The safe and reliable non-electric overhaul condition of the electronic switch of the thyristor valve group can not be obtained when the spare switch of the automatic neutral section passing device is put into operation, and serious potential influence and worry are brought to safe transportation. For example, chinese patent ZL201620359710.8 discloses a ground control automatic neutral section passing system based on power electronic switches, wherein two main thyristor valve set electronic switches are supported by insulators, and a fixed type set frame is installed in a high-voltage chamber, which is large in size and can only be operated and maintained on site. When the electronic switches of the main thyristor valve group quit operation and the standby intelligent vacuum load switch is put into operation, the used full-standby main wiring circuit is shown in figure 1, two main thyristor valve group electronic switches are arranged in a high-voltage chamber, and the main thyristor valve group electronic switches are subjected to 'first-level alarm' quit operation because the high-voltage chamber is connected with the electrification of a bus at intervals, so that the operation maintenance of the main thyristor valve group electronic switches can be carried out only by waiting once per week and within the 'skylight' power-off time of 1.5 hours each time. When the standby intelligent vacuum load switch is put into operation, the electronic switch of the main thyristor valve group cannot be timely maintained, so that the standby switch is free from crisis and potential operation risks are caused. If the 'first-level alarm' occurs again, the automatic neutral-section passing device is forced to be disconnected and quit operation, and serious potential influence is brought to safe transportation.
Therefore, how to provide a method for conveniently dividing and controlling the power supply range of a circuit bus when a standby switch of an automatic neutral section passing device is put into operation so as to obtain a safe, reliable and uncharged overhaul space of a main electronic switch valve bank is an urgent technical problem to be solved.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a full standby main wiring circuit, device and ground control are from passing neutral section system, can the active control mainly be used electronic switch, reserve intelligent load switch's circuit live state, mainly use electronic switch for waiting to maintain and obtain safe and reliable's maintenance condition, and then solve the above-mentioned technical problem who exists among the prior art.
The utility model aims at realizing through the following technical scheme:
the utility model discloses embodiment provides a full standby main wiring circuit, include: the system comprises an A-phase power supply branch, a neutral zone branch and a B-phase power supply branch which are connected in series, wherein one end of an A-phase electronic switch of the A-phase power supply branch is electrically connected with one end of a B-phase electronic switch of the B-phase power supply branch; the A-phase electronic switch of the A-phase power supply branch is respectively connected with the A-phase series intelligent load switch in series and the A-phase series intelligent load switch in parallel and connected with the intelligent load switch in parallel; the B-phase electronic switch of the B-phase power supply branch is respectively connected with the B-phase series intelligent load switch in series and the B-phase series intelligent load switch in parallel; further comprising: three electric isolating switches, namely an A-phase maintenance electric isolating switch, a B-phase maintenance electric isolating switch and an outdoor maintenance electric isolating switch; wherein the content of the first and second substances,
one end of the outdoor overhauling electric isolating switch is electrically connected with the mutual connecting ends of the A-phase electronic switch of the A-phase power supply branch and the B-phase electronic switch of the B-phase power supply branch, and the other end of the outdoor overhauling electric isolating switch is simultaneously connected with the A phase which is connected with the A, B-phase electronic switch in parallel and is electrically connected with one end of the intelligent load switch, the B phase is electrically connected with one end of the intelligent load switch and the upper end of the neutral branch;
the A-phase maintenance electric isolating switch is connected between an A-phase electronic switch of the A-phase power supply branch and an A-phase series intelligent load switch;
the B-phase maintenance electric isolating switch is connected between a B-phase electronic switch of the B-phase power supply branch and an intelligent load switch of the B-phase series intelligent load switch;
the outdoor maintenance electric isolating switch is arranged outside a high-voltage chamber provided with an A-phase electronic switch, a B-phase electronic switch, an A-phase series intelligent load switch, a B-phase series intelligent load switch, an A-phase maintenance electric isolating switch and a B-phase maintenance electric isolating switch.
The utility model discloses embodiment still provides a full reserve main termination, include: the high-voltage chamber, two groups of wall bushing and the full-standby main wiring circuit; wherein the content of the first and second substances,
a plurality of compartments are arranged in the high-voltage compartment in a partitioned manner, and an A-phase electronic switch of an A-phase power supply branch, an A-phase series intelligent load switch, an A-phase parallel intelligent load switch, an A-phase overhauling electric isolating switch, a B-phase electronic switch of a B-phase power supply branch, a B-phase series intelligent load switch, a B-phase parallel intelligent load switch and a B-phase overhauling electric isolating switch are respectively arranged in corresponding compartments in the high-voltage compartment;
the A phase is connected with the intelligent load switch in parallel, a group of wall bushing is arranged on the outer wall of the compartment where the intelligent load switch is located, and one end of the A phase connected with the intelligent load switch penetrates through the group of wall bushing to be electrically connected with one end of an outdoor maintenance electric isolating switch of the full-standby main wiring circuit arranged outside the high-voltage chamber;
and the B phase is connected with the outer wall of the compartment where the intelligent load switch is located, and one end of the B phase is connected with the intelligent load switch and penetrates through the group of wall-penetrating sleeves to be electrically connected with one end of an outdoor maintenance electric isolating switch of the full-standby main wiring circuit arranged outside the high-voltage chamber.
The utility model discloses further provide a ground control is automatic excessively the split phase device, include: the utility model discloses a full standby main wiring circuit or the utility model discloses a full standby main wiring device;
and the full-standby main wiring circuit or the full-standby main wiring device is electrically connected with a contact net feeder line.
Compared with the prior art, the utility model provides a full-standby main wiring circuit, device and the automatic phase splitting device system that crosses of ground control, its beneficial effect includes:
by arranging three electric isolating switches which can flexibly divide and divide the matching, two electric isolating switches in a high-voltage chamber divide the communication with the A-phase power supply and the B-phase power supply, and the divided state of one electric isolating switch outside the high-voltage chamber cuts off the circuit of the standby intelligent load switch when the standby intelligent load switch is put into operation, the circuit is reversely transmitted to the electronic switch compartment, the main electronic switch compartment in the high-voltage chamber is divided from the circuit to be a non-electricity area, the maintenance condition and time of any electronic switch needing to be detected and maintained are met, the maintenance necessary condition is created, and the safety of continuous power supply of a locomotive is further ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a full-standby main wiring circuit provided in the prior art.
Fig. 2 is a schematic diagram of a full-standby main connection circuit provided by an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a high-voltage chamber of a full-standby main wiring device according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention; it is to be understood that the embodiments described are only some embodiments, not all embodiments, and are not to be construed as limiting the invention. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms that may be used herein are first described as follows:
the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".
The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, step, process, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article, etc.) that is not specifically recited, should be interpreted to include not only the specifically recited feature but also other features not specifically recited and known in the art.
The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not meant to imply or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and therefore are not to be construed as limiting herein.
The fully-standby main wiring circuit provided by the present invention is described in detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art. The embodiment of the present invention does not indicate specific conditions, and the operation is performed according to conventional conditions in the art or conditions suggested by the manufacturer. The embodiment of the utility model provides an in used high-voltage apparatus do not annotate the manufacturer, some can be through the conventional product of commercial purchase acquisition.
As shown in fig. 2, an embodiment of the present invention provides a fully-standby main wiring circuit, including: the system comprises an A-phase power supply branch, a neutral zone branch and a B-phase power supply branch which are connected in series, wherein one end of an A-phase electronic switch of the A-phase power supply branch is electrically connected with one end of a B-phase electronic switch of the B-phase power supply branch; the A looks electronic switch of A looks power supply branch road is series connection A looks series connection intelligence load switch and parallel connection A looks parallelly connected and connects intelligent load switch mutually respectively, and the B looks electronic switch of B looks power supply branch road is series connection B looks series connection intelligence load switch and parallel connection B looks parallelly connected and connects intelligent load switch mutually respectively, its characterized in that still includes: the three electric isolating switches are respectively an A-phase maintenance electric isolating switch, a B-phase maintenance electric isolating switch and an outdoor maintenance electric isolating switch; wherein the content of the first and second substances,
one end of the outdoor overhauling electric isolating switch is electrically connected with the interconnection end of the A-phase electronic switch of the A-phase power supply branch and the B-phase electronic switch of the B-phase power supply branch, and the other end of the outdoor overhauling electric isolating switch is simultaneously connected with the A phase which is connected with the A, B-phase electronic switch in parallel and is electrically connected with one end of the intelligent load switch, the B phase is connected with one end of the intelligent load switch and the upper end of the neutral branch;
the A-phase maintenance electric isolating switch is connected between an A-phase electronic switch of the A-phase power supply branch and an A-phase series intelligent load switch;
the B-phase maintenance electric isolating switch is connected between a B-phase electronic switch of the B-phase power supply branch and an intelligent load switch of the B-phase series intelligent load switch;
the outdoor maintenance electric isolating switch is arranged outside a high-voltage chamber provided with an A-phase electronic switch, a B-phase electronic switch, an A-phase series intelligent load switch, a B-phase series intelligent load switch, an A-phase maintenance electric isolating switch and a B-phase maintenance electric isolating switch.
Among the above-mentioned full reserve main connection circuit, outdoor maintenance electric isolator, A looks maintenance electric isolator and B looks maintenance electric isolator all adopt the electronic isolator of single-stage of taking earthing knife.
The three electric isolating switches for maintenance are arranged, so that when a certain main electronic switch needs to be maintained, the A-phase power supply and the B-phase power supply introduced into the electronic switch compartment can be conveniently cut off through the cooperation of the two electric isolating switches in the high-voltage chamber; the outdoor maintenance electric isolating switch is disconnected, the interval of the electronic switch which is reversely transmitted to the high-voltage chamber through the bus is avoided, the interval of the main electronic switch for maintenance is a non-electricity area, and a safe maintenance environment is provided for maintenance.
In the fully-standby main connection circuit, the A, B-phase electronic switches respectively refer to an A-phase main thyristor valve group electronic switch and a B-phase main thyristor valve group electronic switch.
As shown in fig. 3, the embodiment of the present invention further provides a fully-standby main connection device, including: the high-voltage chamber, two groups of wall bushing and the full-standby main wiring circuit; wherein the content of the first and second substances,
a plurality of compartments are arranged in the high-voltage compartment in a partitioned manner, and an A-phase electronic switch of an A-phase power supply branch, an A-phase series intelligent load switch, an A-phase parallel intelligent load switch, an A-phase overhauling electric isolating switch, a B-phase electronic switch of a B-phase power supply branch, a B-phase series intelligent load switch, a B-phase parallel intelligent load switch and a B-phase overhauling electric isolating switch are respectively arranged in corresponding compartments in the high-voltage compartment;
the A phase is connected with the intelligent load switch in parallel, a group of wall bushing is arranged on the outer wall of the compartment where the intelligent load switch is located, and one end of the A phase connected with the intelligent load switch penetrates through the group of wall bushing to be electrically connected with one end of an outdoor maintenance electric isolating switch of the full-standby main wiring circuit arranged outside the high-voltage chamber;
b is parallelly connected intelligent load switch and is equipped with a set of wall bushing on the compartment outer wall in place, B parallelly connected intelligent load switch's one end pass this set of wall bushing and the outside electronic isolator one end electrical connection of overhauing of full reserve main wiring circuit that sets up of high-pressure chamber mutually.
Through set up two sets of wall bushing on the outer wall, move out the high-voltage bus in the high-voltage chamber outside and overhaul electronic isolator with the outdoor and be connected, can overhaul breaking of electronic isolator through the outdoor, avoid when reserve intelligent load switch put into operation, to the indoor reverse power transmission of high-voltage, influence the security to mainly using electronic switch maintenance in the high-voltage chamber.
In the full-standby main wiring device, each group of wall bushing adopts 27.5kV wall bushing.
In the above full-standby main line device, the high-voltage chamber is partitioned into a plurality of compartments, and the full-standby main line device includes:
1 electronic switch compartment used for installing an A-phase electronic switch and a B-phase electronic switch;
4 intelligent load switch compartments, which are respectively used for installing an A-phase series connection intelligent load switch, an A-phase parallel connection intelligent load switch, a B-phase series connection intelligent load switch and a B-phase parallel connection intelligent load switch;
2 isolating switch compartments for installing phase A overhauling electric isolating switches and phase B overhauling electric isolating switches respectively;
and the wall of each compartment is provided with a wall bushing for passing through a connecting lead.
Further, the embodiment of the present invention provides a ground control automatic passing neutral section device, including: the above-mentioned full-standby main wiring circuit or the above-mentioned full-standby main wiring device;
the full-standby main wiring circuit or the full-standby main wiring device is electrically connected with the contact network feeder line to supply power to the contact network feeder line, so that continuous power supply of the electric locomotive is guaranteed when the electric locomotive passes through electric phase separation.
Preferably, in the above ground control automatic neutral section passing system, the control ends of the full-standby main connection circuit or the phase a overhaul electric isolating switch, the phase B overhaul electric isolating switch and the outdoor overhaul electric isolating switch of the full-standby main connection device are all in communication connection with the logic control unit of the ground control automatic neutral section passing system, and can perform linkage control, disconnection and connection operations on the phase a overhaul electric isolating switch, the phase B overhaul electric isolating switch and the outdoor overhaul electric isolating switch by alarming with the electronic switch according to a preset control instruction.
Because the outdoor maintenance electric isolating switch is controlled to be disconnected, the interval between the high-voltage bus and the high-voltage electronic switch through reverse power transmission is avoided, a safe non-power maintenance space is provided, the safety and the convenience of maintenance of the ground control automatic neutral-section passing system are ensured, the continuity of power supply of the whole locomotive is further provided, and the power supply safety is ensured.
In order to show more clearly the utility model provides a technical scheme and produced technological effect, it is right with specific embodiment below the utility model discloses the full-standby main wiring circuit and the device that the embodiment provided carry out detailed description.
Example 1
As shown in fig. 2 and 3, this embodiment provides a fully-standby main connection circuit, which is used in a ground control automatic neutral-passing device, and includes an a-phase power supply branch, a neutral branch, and a B-phase power supply branch (the connection relationship between the devices and the devices constituting each branch is similar to that of the existing fully-standby main connection circuit shown in fig. 1), which are composed of 2 electronic switches, 6 intelligent load switches (2 mobile standby), 4 electric isolation switches, 3 voltage transformers, 4 current transformers, and 3 lightning arresters, and is further provided with three electric isolation switches for maintenance, which are respectively an outdoor maintenance electric isolation switch, an a-phase maintenance electric isolation switch, and a B-phase maintenance electric isolation switch;
one end of an outdoor overhaul electric isolating switch QS5 is electrically connected with the mutual connection ends of A, B phase electronic switches SCRV1 and SCRV2, and the other end of the outdoor overhaul electric isolating switch QS5 is electrically connected with the A phase of the A phase electronic switch SCRV1 and the B phase of the intelligent load switch QF3 and the B phase of the B phase electronic switch SCRV2 and the intelligent load switch QF 4; the outdoor maintenance electric isolating switch QS5 is arranged outside the high-voltage chamber and is electrically connected with A, B phase electronic switches SCRV1, SCRV2 and A phase-connected intelligent load switches QF3 and B phase-connected intelligent load switches QF4 in the high-voltage chamber through a wall bushing on the high-voltage chamber;
the phase A overhauling electric isolating switch QS6 is connected in series between a phase A electronic switch SCRV1 and a phase A series intelligent load switch QF 1;
and the B-phase maintenance electric isolating switch QS7 is connected in series between the B-phase electronic switch SCRV2 and the B-phase series intelligent load switch QF 2.
Referring to fig. 3, preferably, 1 electronic switch compartment 1 is partitioned in the high voltage chamber for installing the a-phase electronic switch 9 and the B-phase electronic switch 10; 4 intelligent load switch compartments 4, 5, 6 and 7 respectively used for installing an A phase series connection intelligent load switch, an A phase parallel connection intelligent load switch, a B phase series connection intelligent load switch and a B phase parallel connection intelligent load switch; 2 isolating switch compartments 2 and 3 are respectively used for installing an A-phase maintenance electric isolating switch and a B-phase maintenance electric isolating switch; the wall of each compartment is provided with a wall bushing 8 for passing through a connecting wire.
And a wall bushing is arranged at the upper part of the electronic switch compartment and is used for penetrating a lead connected with one end of an outdoor overhauling electric isolating switch QS 5.
The A phase is connected with the intelligent load switch and the B phase is connected with the outer wall of the compartment where the intelligent load switch is located, and a group of wall bushing is arranged on the outer wall of the compartment and used for penetrating through a lead connected with the other end of the outdoor overhauling electric isolating switch QS 5.
When the device is designed, arranged and built, the full-standby main wiring circuit with the structure already moves the high-voltage bus out of the compartment where the main electronic switch to be maintained is located, and the specific control mode is as follows:
(1) the outdoor maintenance isolating switch blocks the reverse power transmission to the high-voltage chamber in a breaking state.
The maintenance isolating switch outside the high-voltage chamber is controlled to be in a breaking state, the outdoor voltage can be prevented and cut off and is reversely transmitted to the compartment in which the main electronic switch high-voltage chamber is located, at the moment, the maintenance electric isolating switch of the compartment in which the main electronic switch to be maintained is located is also in the breaking state, and the non-electric maintenance electronic switch can be realized in the compartment.
(2) And increasing the interval of the isolating switch and dividing an independent working area.
The high-voltage standard partition is characterized in that 1 high-voltage standard partition, namely two independent partitions, is respectively arranged on the left side and the right side of each partition of the high-voltage chamber electronic switch, A, B-phase maintenance electric isolating switches are arranged, and when the high-voltage chamber electronic switch is maintained, the corresponding maintenance electric isolating switches are in a breaking state, so that the electric connection with the intelligent vacuum load switch of the branch can be prevented and cut off, namely, the high-voltage partitions of the two main electronic switches and the high-voltage partitions of the 4 intelligent vacuum load switches are divided into mutually independent working areas, and the non-electricity maintenance condition is met.
(3) And analyzing the working state of the isolating switch.
When the three maintenance electric isolating switches are closed, the main electronic switch and the high-voltage compartments of the intelligent load switches are electrically communicated, and the electronic switch and the intelligent load switches can realize full standby functions in various switch combination forms of the logic main control platform, so that the operation requirements are met.
When all three maintenance electric isolating switches are disconnected, the electric of each compartment of the intelligent vacuum load switch is communicated, and the A, B-phase power supply automatic conversion function is executed. At this time, the compartment of the two main electronic switches is a non-electric space without 27.5kV voltage.
Therefore, after the safety measures of electricity testing and earth wire hanging are taken, the compartment of the main electronic switch in the original high-voltage state can be changed into an electronic switch maintenance and overhaul working chamber for use.
The control ends of the three overhauling electric isolating switches can be in communication connection with the logic control unit of the ground control automatic neutral section passing system to realize linkage control, namely the logic control unit of the ground control automatic neutral section passing system is in linkage connection with the primary switch exit instruction of the primary electronic switch through the logic control unit of the ground control automatic neutral section passing system, and the three instructions for simultaneously breaking the overhauling electric isolating switches are executed. The requirements of overhauling the electric isolating switches are brought into an electric-tuning telecontrol monitoring system, so that remote control, remote signaling and remote measurement can be realized, and the requirements meet the unified maintenance and management regulations of the traction power supply switch equipment.
(4) And (4) obtaining an electronic switch random maintenance and repair working room.
The main electronic switch valve set has safety monitoring functions of overvoltage, overcurrent, overtemperature, synchronous protection and the like, once the numerical value exceeds the limit, a primary alarm is sent out to quit the operation, and the main electronic switch valve set has rapid emergent randomness. Therefore, the maintenance and repair space and conditions of the main electronic switch valve bank also need to be available at any time, professional maintenance and repair personnel can be provided to use the maintenance and repair space and conditions in time, faults can be eliminated as soon as possible, and the operation of the main electronic switch valve bank is resumed.
(5) The requirements of executing national standard iron and relevant regulation specifications are met.
The utility model discloses a full-standby main wiring circuit and a device, which follow the design principle that 50-100% of standby switches are arranged at the high-voltage switch of a traction power supply valve; meanwhile, safe and reliable maintenance and overhaul places of high-voltage electrical equipment are randomly provided through flexible transformation of feasible technologies, and the requirements of the national standard iron and relevant regulation and regulation rules of railways are well met.
(6) And the method conforms to the international RAMS standard.
Flexible overhaul room and loose maintenance time, fully exerts the contactless, accurate, leading and long-term online effects of the main electronic switch in the complete set of equipment, and creates the necessary conditions. Compliance with the reliability, availability, serviceability and safety guidelines of the international RAMS standard.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (7)
1. A fully backup main wiring circuit comprising: the system comprises an A-phase power supply branch, a neutral zone branch and a B-phase power supply branch which are connected in series, wherein one end of an A-phase electronic switch of the A-phase power supply branch is electrically connected with one end of a B-phase electronic switch of the B-phase power supply branch; the A looks electronic switch of A looks power supply branch road is series connection A looks series connection intelligence load switch and parallel connection A looks parallelly connected and connects intelligent load switch mutually respectively, and the B looks electronic switch of B looks power supply branch road is series connection B looks series connection intelligence load switch and parallel connection B looks parallelly connected and connects intelligent load switch mutually respectively, its characterized in that still includes: three electric isolating switches, namely an A-phase maintenance electric isolating switch, a B-phase maintenance electric isolating switch and an outdoor maintenance electric isolating switch; wherein the content of the first and second substances,
one end of the outdoor overhauling electric isolating switch is electrically connected with the interconnection end of the A-phase electronic switch of the A-phase power supply branch and the B-phase electronic switch of the B-phase power supply branch, and the other end of the outdoor overhauling electric isolating switch is simultaneously connected with the A phase which is connected with the A, B-phase electronic switch in parallel and is electrically connected with one end of the intelligent load switch, the B phase is connected with one end of the intelligent load switch and the upper end of the neutral branch;
the A-phase maintenance electric isolating switch is connected between an A-phase electronic switch of the A-phase power supply branch and an A-phase series intelligent load switch;
the B-phase maintenance electric isolating switch is connected between a B-phase electronic switch of the B-phase power supply branch and an intelligent load switch of the B-phase series intelligent load switch;
the outdoor maintenance electric isolating switch is arranged outside a high-voltage chamber provided with an A-phase electronic switch, a B-phase electronic switch, an A-phase series intelligent load switch, a B-phase series intelligent load switch, an A-phase maintenance electric isolating switch and a B-phase maintenance electric isolating switch.
2. The fully-standby main wiring circuit according to claim 1, wherein the outdoor maintenance electric isolating switch, the phase-A maintenance electric isolating switch and the phase-B maintenance electric isolating switch are single-stage electric isolating switches with grounding knives.
3. A fully-standby main junction device, comprising: a high voltage chamber, two sets of wall bushings and a fully-standby main wiring circuit of claim 1 or 2; wherein the content of the first and second substances,
a plurality of compartments are arranged in the high-voltage compartment in a partitioned manner, and an A-phase electronic switch of an A-phase power supply branch, an A-phase series intelligent load switch, an A-phase parallel intelligent load switch, an A-phase overhauling electric isolating switch, a B-phase electronic switch of a B-phase power supply branch, a B-phase series intelligent load switch, a B-phase parallel intelligent load switch and a B-phase overhauling electric isolating switch are respectively arranged in corresponding compartments in the high-voltage compartment;
the A phase is connected with the intelligent load switch in parallel, a group of wall bushing is arranged on the outer wall of the compartment where the intelligent load switch is located, and one end of the A phase connected with the intelligent load switch penetrates through the group of wall bushing to be electrically connected with one end of an outdoor maintenance electric isolating switch of the full-standby main wiring circuit arranged outside the high-voltage chamber;
b is parallelly connected intelligent load switch and is equipped with a set of wall bushing on the compartment outer wall in place, B parallelly connected intelligent load switch's one end pass this set of wall bushing and the outside electronic isolator one end electrical connection of overhauing of full reserve main wiring circuit that sets up of high-pressure chamber mutually.
4. The fully-spare main junction device of claim 3, wherein each set of wall bushings is 27.5kV wall bushings.
5. The full-backup primary wiring device according to claim 3 or 4, wherein the dividing of the plurality of compartments within the high voltage compartment comprises:
1 electronic switch compartment used for installing an A-phase electronic switch and a B-phase electronic switch;
4 intelligent load switch compartments, which are respectively used for installing an A-phase series connection intelligent load switch, an A-phase parallel connection intelligent load switch, a B-phase series connection intelligent load switch and a B-phase parallel connection intelligent load switch;
2 isolating switch compartments for installing phase A overhauling electric isolating switches and phase B overhauling electric isolating switches respectively;
and the wall of each compartment is provided with a wall bushing for passing through a connecting lead.
6. A ground control auto-passing neutral section system, comprising: the fully backup primary wiring circuit of claim 1 or 2 or the fully backup primary wiring device of any one of claims 3-5;
and the full-standby main wiring circuit or the full-standby main wiring device is electrically connected with a contact net feeder line.
7. The ground control automatic passing neutral section system according to claim 6, wherein the control ends of the phase A overhauling electric isolating switch, the phase B overhauling electric isolating switch and the outdoor overhauling electric isolating switch of the full-standby main wiring circuit or the full-standby main wiring device are all in communication connection with the logic control unit of the ground control automatic passing neutral section system, and can perform linkage control on the phase A overhauling electric isolating switch, the phase B overhauling electric isolating switch and the outdoor overhauling electric isolating switch according to preset control instructions and electronic switch alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221592943.4U CN217495883U (en) | 2022-06-24 | 2022-06-24 | Full-standby main wiring circuit, device and ground control automatic neutral section passing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221592943.4U CN217495883U (en) | 2022-06-24 | 2022-06-24 | Full-standby main wiring circuit, device and ground control automatic neutral section passing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217495883U true CN217495883U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221592943.4U Active CN217495883U (en) | 2022-06-24 | 2022-06-24 | Full-standby main wiring circuit, device and ground control automatic neutral section passing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217495883U (en) |
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2022
- 2022-06-24 CN CN202221592943.4U patent/CN217495883U/en active Active
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