CN218070781U - Ring network type boundary measurement integrated device - Google Patents

Abstract

The utility model belongs to the technical field of ring main units, in particular to a ring network type demarcation and measurement integrated device, which comprises an outer box body, wherein the size of the outer box body is matched with the total size of all internal cabinet bodies; the left side of the inside of the outer box body is provided with a power supply pt cabinet, the right side of the power supply pt cabinet is provided with a plurality of groups of switch devices and metering devices, the switch devices and the metering devices are respectively provided with an incoming line tape metering pt module cabinet at independent intervals, the right side of the incoming line tape metering pt module cabinet is provided with a plurality of groups of switch devices and metering devices, the switch devices and the metering devices are respectively provided with an outgoing line tape metering ct module cabinet at independent intervals, the number of the incoming line tape metering pt module cabinets corresponds to the number of incoming lines, the number of the outgoing line tape metering ct module cabinets corresponds to the number of outgoing lines, and the heights of the power supply pt cabinet, the incoming line tape metering pt module cabinet and the outgoing line tape metering ct module cabinet are matched. The utility model discloses the effect: the function responsibility is clear, and the occupied area is reduced.

Description

Ring network type boundary measurement integrated device

Technical Field

The utility model belongs to the technical field of the looped netowrk cabinet, concretely relates to looped netowrk type boundary measurement integrated device.

Background

In the existing urban distribution network construction, a power supply mode of a ring main unit and a high-voltage metering box is generally adopted, equipment is installed separately, so that overhaul and maintenance are inconvenient, construction is complex and long in period, and investment capital is large. At present, some research institutes and large-scale power equipment manufacturers have already devoted to research on the above problems, and the main scheme is a mode of adding a ring network box and a boundary switch and a measuring box, and the scheme can solve the problems of line loss and convenience in construction and installation, but cannot well solve the problems of clear responsibility, metering and reading, electricity stealing prevention, safe and convenient operation and maintenance, large occupied area and large investment of each functional unit. Firstly, this solution would cause the metering point to be inconsistent with the title boundary point, as shown in fig. 9, the metering device should be installed at the title boundary point of both the electricity supply and the electricity utilization in principle. If the metering point is inconsistent with the property right demarcation point, the loss of electric quantity from the demarcation point to the metering point can be borne by a power supply department, metering meter reading personnel need to enter a user power distribution room at work, and the metering device is very inconvenient. Secondly, do not carry out the integrated design to switchgear and metering equipment, be not convenient for the construction installation, and be unfavorable for the later stage operation and maintenance and the measurement work is carried out. The power supply scheme that ring box with a net, boundary switch and metering device separation were installed takes up an area of more, and the construction fortune dimension is loaded down with trivial details, and the invested capital is great, and the operation management is inconvenient. If in the present most ring network type cubical switchboard of use volume, accomplish that each way is qualified for the next round of competitions and can both realize the measurement function, as shown in figure 10, can not only solve the looped netowrk case when as property right demarcation point, measure the problem not at the demarcation point, can solve the transformer substation interval expansion problem fast moreover. Therefore, the high-voltage ring net metering box provided by the invention organically integrates the ring net box and the metering box, has independent interval functions, small equipment volume, high standardization degree, short construction period, lower equipment cost, convenient operation and maintenance, greatly reduced operation and maintenance cost and investment construction cost, and is used for solving the problems.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model provides a looped netowrk type boundary measurement integrated device for solve the not clear problem of prior art functional responsibility.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a ring network type demarcation measurement integrated device comprises an outer box body, wherein the size of the outer box body is matched with the total size of all cabinet bodies inside; the left side in the outer box body is provided with a power supply pt cabinet, the right side of the power supply pt cabinet is provided with a plurality of groups of switch devices and metering devices, the switch devices and the metering devices are respectively provided with an incoming line tape metering pt module cabinet at independent intervals, the right side of the incoming line tape metering pt module cabinet is provided with a plurality of groups of switch devices and metering devices, the switch devices and the metering devices are respectively provided with an outgoing line tape metering ct module cabinet at independent intervals, the number of the incoming line tape metering pt module cabinets corresponds to the number of incoming lines, the number of the outgoing line tape metering ct module cabinets corresponds to the number of outgoing lines, and the heights of the power supply pt cabinet, the incoming line tape metering pt module cabinet and the outgoing line tape metering ct module cabinet are matched.

Furthermore, the incoming line area metering pt module cabinet is of a hollow cabinet body structure, the incoming line area metering pt module cabinet is made of metal plates through splicing, a plurality of compartments are arranged inside the incoming line area metering pt module cabinet, the front side face of the incoming line area metering pt module cabinet is a switch operation face, the rear side face of the incoming line area metering pt module cabinet is a metering operation face, a secondary small chamber, an incoming line operation mechanism chamber and an incoming line cable chamber are sequentially arranged on the switch operation face of the incoming line area metering pt module cabinet from bottom to bottom, an incoming line breaker chamber is arranged on the rear side of the incoming line operation mechanism chamber, and an incoming line metering pt chamber is arranged on the rear side of the incoming line breaker chamber.

Further, be equipped with inlet wire protection ct in the inlet wire cable chamber, inlet wire protection ct bottom is equipped with the inlet wire cable with external intercommunication, is equipped with the inlet wire sleeve pipe on the inlet wire protection ct, and inlet wire protection ct top pierces through into inlet wire circuit breaker room, the indoor inlet wire isolator that is equipped with of inlet wire circuit breaker, and inlet wire isolator upper portion is equipped with inlet wire cabinet circuit breaker, the indoor inlet wire operating device that is equipped with of inlet wire operating device, the indoor inlet wire cabinet measurement pt that is equipped with of inlet wire measurement pt.

Further, it is hollow cabinet body structure to be qualified for next round of competitions area measurement ct module cabinet, it is made with the panel beating concatenation to be qualified for the next round of competitions area measurement ct module cabinet, it is equipped with a plurality of compartments to be qualified for the next round of competitions area measurement ct module cabinet inside, it is the switch operating face to be qualified for the next round of competitions area measurement ct module cabinet leading flank, it is the measurement operating face to be qualified for the next round of competitions area measurement ct module cabinet switch operating face, it is equipped with secondary instrument room, isolator mechanism room, the cable chamber of being qualified for the next round of competitions to take measurement ct module cabinet switch operating face from the bottom down in proper order, isolator mechanism room rear side is equipped with the circuit breaker room of being qualified for the next round of competitions, circuit breaker room rear side of being qualified for the next round of competitions is equipped with the measurement ct room.

Furthermore, an outgoing cable is arranged in the outgoing cable chamber, an outgoing protection ct is arranged on the outgoing cable, the top of the outgoing protection ct is communicated with the outgoing breaker chamber, an outgoing isolating switch is arranged in the outgoing breaker chamber, an outgoing breaker is arranged at the top of the outgoing isolating switch, an outgoing isolating switch mechanism is arranged in the isolating switch mechanism chamber, an outgoing metering ct is arranged in the outgoing metering ct chamber, and the right side of the outgoing metering ct is communicated with the outgoing breaker chamber.

Furthermore, the outgoing line metering ct and the incoming line metering pt both adopt a full-insulation plug-pull structure, the outgoing line cable and the incoming line cable both adopt a touch cable plug, the power pt cabinet, the incoming line metering pt module cabinet and the outgoing line metering ct module cabinet are installed in an outdoor ground, and terminal equipment such as a DTU (digital television unit) can be configured.

Further, secondary cell, inlet wire operating device room, inlet wire cable chamber, isolator mechanism room all are equipped with the cabinet door that can open and close, are equipped with electromagnetic lock and mechanical interlocking on the cabinet door, and secondary instrument room, isolator mechanism room, the cable chamber of being qualified for the next round of competitions, measurement ct room of being qualified for the next round of competitions all are equipped with the cabinet door that can open and close, are equipped with electromagnetic lock and mechanical interlocking on the cabinet door.

Compared with the prior art, the utility model, following beneficial effect has:

1. looped netowrk switchgear combines together with metering device: 1. the looped network switch device and the metering device are integrated, the switch unit and the metering unit are respectively independent intervals, the function of the corresponding interval of the looped network box is used for replacing the boundary switch, the metering point is directly arranged on the outgoing line side of the boundary switch, the metering accuracy is ensured based on the proximity principle, and the investment and the occupied area of the device are reduced; the device has the advantages of clear functional responsibility, compact structure and small volume, and can effectively reduce the occupied area. 2. The high-voltage switch compartment and the metering device compartment of the high-voltage ring network metering box are respectively and independently separated, so that cross operation among different specialties is avoided, and each speciality can independently carry out operation and maintenance. 3. Each outlet interval has an independent metering function, metering is more accurate, and the power failure range under the conditions of operation, maintenance and the like can be reduced. 4. The high-voltage ring network metering box is high in modularization and standardization degree, and is convenient to operate, maintain and construct. Newly-built and reform transform in original looped netowrk case, newly-increased equipment reinstallation takes up an area of the land and approves the difficulty, and the investment fund is great. Because the appearance can be accomplished to looped netowrk batch meter and looped netowrk case unanimously, need not newly-built basis, can directly replace former ring box with a net, can also practice thrift the occupation of land space of batch meter simultaneously. Meanwhile, the high-voltage ring network metering box integrates the ring net box and the metering box, the independent metering function of a multi-loop outgoing line is met, and the land investment for construction of other power utilization places for meeting the function is greatly reduced. 2. The metering CT and the metering PT are designed by a plug-in elbow plug-in structure. 1. High-voltage looped netowrk batch meter measurement CT and PT all adopt plug-in mounting structure to design, and outside all insulation is convenient for fortune and change, and the security performance is high. 2. According to the scheme, the metering mutual inductor can be safely and quickly replaced when the CT transformation ratio is changed due to the change of the load of a user, and the replacement power failure time is reduced. 3. Double-layer current sampling electricity larceny prevention technology. Through the current secondary sampling to measurement current transformer, then compare with protection current transformer's electric current in real time, when finding contrast difference abnormal, the both sides load has taken place unusually promptly, exists to steal the electric phenomenon, can send the warning, uploads and steals electric information. 4. The design scheme of the fully-sealed and fully-insulated floor-mounted metering box. The function between boundary switch in this scheme and metering device compartment is independent, does not have the electrified body in each compartment of whole equipment, and primary equipment such as switch all installs and is filled with the gaseous or gaseous gas tank of environmental protection of S inlet wire operating device, ensures that equipment does not receive external environment influence reliably to move in inclosed environment. 5. The intelligent function of the equipment and the function of the reserved electric power ubiquitous Internet of things interface. The system has the functions of electric acquisition, cost control, load control, four remote control, overcurrent, quick break, delay quick break, zero sequence protection and voltage loss protection; the intelligent power distribution network node has the advantages of electricity larceny prevention, online temperature measurement alarm, entrance guard monitoring and edge calculation, an RS485 communication interface is reserved, NB-IOT/4G self-adaptive data are supported to be remotely transmitted through communication channels such as GSM, GPRS and optical fibers, and the like, and the requirement of the intelligent power distribution network on the function of the equipment node is met.

Drawings

Fig. 1 is a schematic structural view of a switch operating surface of the present invention;

FIG. 2 is a schematic structural view of a metering operation surface of the present invention;

FIG. 3 is a schematic structural view of a switch operation surface of an incoming line tape metering pt module cabinet;

FIG. 4 is a schematic side view of an incoming tape metering pt module cabinet;

FIG. 5 is a schematic diagram of an internal side view of an incoming tape metering pt module;

fig. 6 is a schematic structural view of a switch operation surface of the ct module cabinet with outgoing line metering;

fig. 7 is a schematic side view of the outlet tape metering ct module cabinet;

fig. 8 is a schematic view of a side view structure inside the outgoing-line-tape-metering ct module cabinet;

FIG. 9 is a schematic diagram of a prior art title demarcation point;

FIG. 10 is a schematic view of an improved partum cut-off point;

fig. 11 is a schematic diagram of the present invention.

Reference numerals referred to in the drawings are:

1. the system comprises a power supply pt cabinet, 2. Incoming line metering pt module cabinets, 3. Outgoing line metering ct module cabinets, 4. Outgoing line cable chambers, 5. Secondary small chambers, 6. Incoming line operating mechanisms, 7. Incoming line cabinet breakers, 8. Incoming line metering pt,9. Incoming line isolating switches, 10. Incoming line sleeves, 11. Incoming line protection ct,12. Incoming line cables, 13. Outgoing line breaker chambers, 14. Outgoing line metering ct chambers, 15. Incoming line cable chambers, 16. Secondary instrument chambers, 17. Outgoing line breakers, 18. Outgoing line isolating switch mechanisms, 19. Outgoing line isolating switches, 20. Outgoing line metering ct,21. Outgoing line protection ct,22. Outgoing line cables, 23. Isolating switch mechanism chambers, 24. Incoming line operating mechanism chambers, 25. Incoming line breaker chambers and 26. Incoming line metering pt chambers.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

Example one

As shown in fig. 1-8, a looped network type demarcation measurement integrated device, including the outer box, the outer box is for directly exposing at open air shell body, be responsible for the effects such as the inside cabinet body of protection and rain-proof sun-proof, the external box is internal to install the cabinet body of multiunit different functions according to actual demand, the looped netowrk cabinet is constituteed jointly to the multiunit cabinet body, power pt cabinet 1 is installed on the left side of the internal portion of outer box, the multiunit has switchgear and metering device in power pt cabinet 1 right side installation, and has set up independent spaced inlet wire area measurement pt module cabinet 2 respectively for switchgear and metering device, inlet wire area measurement pt module cabinet 2 is hollow cabinet body structure, inlet wire area measurement pt module cabinet 2 is made with the panel beating concatenation, inlet wire area measurement pt module cabinet 2 internally mounted has a plurality of compartments, inlet wire area measurement pt module cabinet 2 leading flank is the switch operation face, inlet wire area measurement pt module cabinet 2 trailing flank is the measurement operation face, inlet wire area measurement pt module cabinet 2 switching operation face installs secondary cell 5 from bottom to bottom in proper order, inlet wire operation mechanism room 24, inlet wire operation room cable room 15, inlet wire operation mechanism cable room side installs circuit breaker 25 rear side, inlet wire room measurement room 26 is installed.

Install inlet wire protection ct11 in the inlet wire cable room 15, inlet wire protection ct11 is connected with the corresponding cabinet body reservation connecting piece, inlet wire protection ct11 bottom intercommunication inlet wire cable 12, install inlet wire sleeve 10 on the inlet wire protection ct11, inlet wire protection ct11 top pierces through and gets into inlet wire breaker room 25, install inlet wire isolator 9 in the inlet wire breaker room 25, inlet wire cabinet circuit breaker 7 is installed on inlet wire isolator 9 upper portion, install inlet wire operating device 6 in the inlet wire operating device room 24, install inlet wire cabinet measurement pt8 in the inlet wire measurement pt room 26.

The right side of the incoming line tape metering pt module cabinet 2 is provided with a plurality of groups of switch devices and metering devices, the switch devices and the metering devices are respectively provided with an outgoing line tape metering ct module cabinet 3 at independent intervals, the outgoing line tape metering ct module cabinet 3 is of a hollow cabinet body structure, the outgoing line tape metering ct module cabinet 3 is formed by splicing metal plates, a plurality of compartments are arranged inside the outgoing line tape metering ct module cabinet 3, the front side of the outgoing line tape metering ct module cabinet 3 is a switch operation surface, the rear side of the outgoing line tape metering ct module cabinet 3 is a metering operation surface, a secondary instrument chamber 16, an isolation switch mechanism chamber 23 and an outgoing line cable chamber 4 are sequentially arranged on the switch operation surface of the outgoing line tape metering ct module cabinet 3 from bottom to bottom, an outgoing line breaker chamber 13 is arranged on the rear side of the isolation switch mechanism chamber 23, and an outgoing line metering ct chamber 14 is arranged on the rear side of the outgoing line breaker chamber 13.

An outgoing cable 22 is installed in the outgoing cable chamber 4, an outgoing protection ct21 is installed on the outgoing cable 22, the top of the outgoing protection ct21 is communicated with the outgoing breaker chamber 13, an outgoing isolating switch 19 is installed in the outgoing breaker chamber 13, an outgoing breaker 17 is installed at the top of the outgoing isolating switch 19, an outgoing isolating switch mechanism 18 is installed in the isolating switch mechanism chamber 23, an outgoing metering ct20 is installed in the outgoing metering ct chamber 14, and the right side of the outgoing metering ct20 is communicated with the outgoing breaker chamber 13.

The number of the incoming line tape metering pt module cabinets 2 corresponds to the number of incoming lines, the number of the outgoing line tape metering ct module cabinets 3 corresponds to the number of outgoing lines, and the heights of the power supply pt cabinet 1, the incoming line tape metering pt module cabinet 2 and the outgoing line tape metering ct module cabinet 3 are matched.

The principle of the ring network type demarcation metering integrated device is shown in fig. 11, in the figure, incoming lines pass through a three-station isolating switch (a switch-off position, a switch-on position and a grounding position), a protection current transformer, a metering voltage transformer and a vacuum circuit breaker and then reach an outgoing line side, and the metering device part and the demarcation switch part are compact in position, can realize accurate metering and is convenient for design of an integrated scheme.

An elbow type plug-in metering current transformer and a metering voltage transformer are adopted for the incoming line tape metering pt and the outgoing line tape metering ct in the cabinet body. The problem of because of user load change or when overhauing the mutual-inductor, the dismouting mutual-inductor is inconvenient, and need many people to assist is solved, the problem that traditional mutual-inductor has exposed electrified part to have very big potential safety hazard has also been solved simultaneously, ensures that relevant professional carries out relevant operation fast, safely, has solved the inconvenient difficult problem of changing of built-in fuse PT.

The cabinet body is also provided with a double-layer current sampling electricity stealing prevention technology, and electricity stealing information can be uploaded in real time.

This technique is through two current sampling in same return circuit, and according to the import current value only can change and this principle of regular change according to the outlet side load, the monitoring outlet side current value, whether there is the electricity phenomenon of stealing through the difference of contrast import side current value and outlet side current value to combine equipment intelligent function, can push away the electricity stealing alarm information to measurement supervisory personnel cell-phone terminal or monitor platform.

The technical scheme solves the problems that the traditional equipment is easy to steal electricity, electricity stealing points and electricity stealing time periods are not easy to find in time, and the like, and can avoid the electricity stealing phenomenon of the scheme.

An intelligent expansion function interface is reserved on the cabinet body and can be comprehensively linked with the ubiquitous power Internet of things, so that the equipment is more intelligent.

The ubiquitous power internet of things can record various state parameters, electric quantity data, environmental parameters and the like of equipment operation, can also collect various data of the equipment for statistics and operation, and can improve the reliability of the equipment operation by using an edge computing technology.

The high-voltage switch and the charged body of the ring net type boundary metering integrated device are sealed in a gas box filled with SF6 gas or environment-friendly gas, so that long-term high-reliability operation of equipment in the open air is ensured.

Claims (7)

1. The utility model provides a looped netowrk type boundary measurement integrated device which characterized in that: the cabinet comprises an outer box body, wherein the size of the outer box body is matched with the total size of all cabinet bodies inside the outer box body; a power supply pt cabinet (1) is arranged on the left side inside an outer box body, a plurality of groups of switch devices and metering devices are arranged on the right side of the power supply pt cabinet (1), independent spaced incoming line metering pt module cabinets (2) are respectively arranged for the switch devices and the metering devices, a plurality of groups of switch devices and metering devices are arranged on the right side of the incoming line metering pt module cabinets (2), independent spaced outgoing line metering ct module cabinets (3) are respectively arranged for the switch devices and the metering devices, the number of the incoming line metering pt module cabinets (2) corresponds to the number of incoming lines, the number of the outgoing line metering ct module cabinets (3) corresponds to the number of outgoing lines, and the heights of the power supply pt cabinet (1), the incoming line metering pt module cabinets (2) and the outgoing line metering ct module cabinets (3) are matched.

2. The looped network type demarcation metering integrated device according to claim 1, characterized in that: incoming line area measurement pt module cabinet (2) is hollow cabinet body structure, incoming line area measurement pt module cabinet (2) are made with the panel beating concatenation, incoming line area measurement pt module cabinet (2) inside is equipped with a plurality of compartments, the incoming line area measures pt module cabinet (2) leading flank to be the switch operation face, the incoming line area measures pt module cabinet (2) trailing flank to be the measurement operation face, the incoming line area measures pt module cabinet (2) switch operation face from the bottom down and is equipped with secondary cell (5) in proper order, inlet wire operating device room (24), inlet wire cable room (15), inlet wire operating device room (24) rear side is equipped with inlet wire circuit breaker room (25), inlet wire circuit breaker room (25) rear side is equipped with inlet wire measurement pt room (26).

3. The looped network type demarcation metering integrated device according to claim 2, characterized in that: be equipped with inlet wire protection ct (11) in inlet wire cable room (15), inlet wire protection ct (11) bottom is equipped with inlet wire cable (12) with external intercommunication, be equipped with inlet wire sleeve pipe (10) on inlet wire protection ct (11), inlet wire protection ct (11) top pierces through and gets into inlet wire circuit breaker room (25), be equipped with inlet wire isolator (9) in inlet wire circuit breaker room (25), inlet wire isolator (9) upper portion is equipped with inlet wire cabinet circuit breaker (7), be equipped with inlet wire operating device (6) in inlet wire operating device room (24), be equipped with inlet wire cabinet measurement pt (8) in the inlet wire measurement pt room (26).

4. The looped network type demarcation measurement integrated device of claim 3, characterized in that: outgoing line area measurement ct module cabinet (3) are hollow cabinet body structure, outgoing line area measurement ct module cabinet (3) are made with the panel beating concatenation, it is equipped with a plurality of compartments to go out inside area measurement ct module cabinet (3), it is the switch operation face to go out the line area measurement ct module cabinet (3) leading flank, it is the measurement operation face to go out the line area measurement ct module cabinet (3) trailing flank, it is equipped with secondary instrument room (16) from bottom to bottom in proper order to go out the line area measurement ct module cabinet (3) switch operation face, isolator mechanism room (23), cable chamber (4) of being qualified for the next round of competitions, isolator mechanism room (23) rear side is equipped with circuit breaker room (13) of being qualified for the next round of competitions, circuit breaker room (13) rear side of being qualified for the next round of competitions is equipped with the line measurement ct chamber (14).

5. The looped network type demarcation metering integrated device according to claim 4, characterized in that: an outgoing cable (22) is arranged in the outgoing cable chamber (4), an outgoing line protection ct (21) is arranged on the outgoing cable (22), the top of the outgoing line protection ct (21) is communicated with the outgoing line breaker chamber (13), an outgoing line isolating switch (19) is arranged in the outgoing line breaker chamber (13), an outgoing line breaker (17) is arranged at the top of the outgoing line isolating switch (19), an outgoing line isolating switch mechanism (18) is arranged in the isolating switch mechanism chamber (23), an outgoing line metering ct (20) is arranged in the outgoing line metering ct chamber (14), and the right side of the outgoing line metering ct (20) is communicated with the outgoing line breaker chamber (13).

6. The looped network type demarcation metering integrated device according to claim 5, characterized in that: the outgoing line metering ct (20) and the incoming line cabinet metering pt (8) both adopt full-insulation plug-in structures, the outgoing line cable (22) and the incoming line cable (12) both adopt touch cable plugs, the power pt cabinet (1), the incoming line tape metering pt module cabinet (2) and the outgoing line tape metering ct module cabinet (3) are installed in an outdoor ground, and terminal equipment such as DTUs can be configured.

7. The looped network type demarcation metering integrated device according to claim 6, characterized in that: secondary cell (5), inlet wire operating device room (24), inlet wire cable chamber (15), isolator mechanism room (23) all are equipped with the cabinet door that can open and close, are equipped with electromagnetic lock and mechanical interlocking on the cabinet door, and secondary instrument room (16), isolator mechanism room (23), outlet wire cable chamber (4), outlet wire measurement ct room (14) all are equipped with the cabinet door that can open and close, are equipped with electromagnetic lock and mechanical interlocking on the cabinet door.

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