CN115954772A - An intelligent high-pressure floor-standing metering box - Google Patents

Abstract

An intelligent high-voltage floor type metering box comprises a metering box body, wherein the interior of the cabinet body is divided into an independent wire inlet chamber, a wire outlet chamber, a control chamber, a metering chamber and an operation chamber through metal partition plates, the opening and closing doors of the control chamber and the metering chamber are double-layer doors, and a microcomputer protection device, a forced type electrified display, an opening button, a closing button and an energy storage knob are installed on a door plate of the control chamber; the on-column circuit breaker is installed in the wire inlet chamber, the on-column circuit breaker is installed at the bottom of the wire inlet chamber through the on-column support, three wire inlet ends of the on-column circuit breaker are respectively connected with the high-voltage wire inlet copper bar, three wire outlet ends of the on-column circuit breaker are respectively connected with the three protection current transformers, and the three protection current transformers are connected with the high-voltage wire outlet copper bar.

Description

An intelligent high-pressure floor-standing metering box

technical field

The invention relates to the field of high-voltage metering for 10kV high-voltage power supply, in particular to an intelligent high-voltage floor-standing metering box.

Background technique

The conventional 10kV high-voltage power supply high-voltage metering scheme is realized by using a pole-mounted circuit breaker and a combined metering unit (integrated current transformer and voltage transformer). The circuit breaker on the pole and the combined metering unit are installed on the cross arms of the two utility poles, while the control box with the microcomputer protection device and the metering box with the electric energy meter are installed on the utility poles, and the lightning arrester is also installed on the utility poles. connected by high voltage wires. Considering the safety of use, the pole-mounted circuit breaker, combined metering unit, lightning arrester, and high-voltage connecting line are all installed on the pole about 6 meters above the ground, and the control box and metering box are installed on the pole about 3.5 meters above the ground.

In the actual use process, the opening and closing status of the circuit breaker on the pole, the energy storage status, the usage status of the metering unit, whether the wire connector is firm and reliable, whether the components are cracked or aging, etc., cannot be observed on the ground. The problem of device outlets cannot be found in time, which may easily cause safety hazards and safety accidents. The opening and closing operation and energy storage operation of the circuit breaker on the pole also requires the operator to stand on the ground and operate the opening, closing and energy storage of the circuit breaker through an insulating operating rod about 5 meters long, which is very inconvenient to operate . During the debugging process of the circuit breaker on the pole and the microcomputer protection device, it is necessary to climb on the electric pole to set the protection setting value of the microcomputer protection; when reading the meter, it is also necessary to climb on the electric pole to record the degree of the electric energy meter. These operations There will be risks of falling from high altitude and electric shock, posing a threat to the safety of operators.

Pole-mounted circuit breakers, metering units, high-voltage wires, lightning arresters and other high-voltage live parts are exposed to the air, and in humid, dusty, and dirty environments, it is easy to cause insulation breakdown and endanger equipment and personal safety. Moreover, at this height, tree branches or other foreign objects are likely to cause two-phase or three-phase short circuits, which will affect the reliability of the equipment. Exposure to the air for a long time, natural wind and sun, will easily cause insulation aging, cracks in components, and reduce the service life and reliability of the product.

Contents of the invention

In order to solve the above problems, an intelligent high-pressure floor-standing metering box is provided. The technical solution of the present invention is realized in the following manner:

An intelligent high-voltage floor-standing metering box, including a metering box body, the interior of the cabinet is divided into independent wire inlet rooms, wire outlet rooms, control rooms, metering rooms, and operating rooms through metal partitions. The line room, outlet room, control room, metering room, and operating room are respectively equipped with switch doors. The switch doors of the control room and the metering room are double-layer doors, and the control room door is equipped with a microcomputer protection device and a forced live display. , switch-off button 8, switch-on button, energy storage knob; the pole-mounted circuit breaker is installed in the inlet line room, and the column-mounted circuit breaker is installed at the bottom of the line-incoming room through the column-mounted bracket. The wire ends are respectively connected to the A-phase high-voltage incoming line copper bar, the B-phase high-voltage incoming line copper bar and the C-phase high-voltage incoming line copper bar. The transformers are respectively connected to the A-phase high-voltage outgoing line copper bar, the B-phase high-voltage outgoing line copper bar, and the C-phase high-voltage outgoing line copper bar.

The A-phase high-voltage incoming copper bar, the B-phase high-voltage incoming copper bar and the C-phase high-voltage incoming copper bar are respectively connected in parallel with lightning arresters.

The A-phase high-voltage incoming line copper bar and the B-phase high-voltage incoming line copper bar are connected in parallel with power supply voltage transformers, and the transformation ratio of the power supply voltage transformers is 10kV/0.22kV.

The phase A high-voltage outlet copper bar is connected to the A-phase metering voltage transformer, the C-phase high-voltage outlet copper bar is connected to the C-phase metering voltage transformer, the A-phase high-voltage outlet copper bar is connected to the A-phase metering current transformer, and the C-phase high-voltage outlet copper bar is connected to the C-phase metering voltage transformer. The bus bar is connected to the C-phase metering current transformer, and the B-phase high-voltage outlet copper bar is connected to the A-phase metering voltage transformer and the C-phase metering voltage transformer.

The pole-mounted circuit breaker is equipped with an opening and closing operation shaft 50 and an energy storage operation shaft 45, and the opening and closing operation shaft 50 and the energy storage operation shaft 45 extend to the operating room.

The operating room is provided with an opening and closing observation window 47 and an energy storage observation window 46 .

The metering chamber is provided with an observation window, and the observation window is made of transparent plexiglass.

The protective CT transformation ratio of the pole-mounted circuit breaker is adjustable, and the CT transformation ratio of the pole-mounted circuit breaker is adjustable in three levels: 200/5, 400/5, and 600/5.

A first electromagnetic lock is installed on the inner side of the switch door of the inlet room, and a second electromagnetic lock is installed on the inner side of the switch door of the outlet room. The first electromagnetic lock and the second electromagnetic lock are electrically connected to the mandatory charged display.

A bolt mounting plate is arranged on the inner edge of the rear door.

Compared with the prior art, the present invention has the following beneficial effects:

An intelligent high-voltage floor-standing metering box, including a metering box body, the interior of the cabinet is divided into independent wire inlet rooms, wire outlet rooms, control rooms, metering rooms, and operating rooms through metal partitions. The line room, outlet room, control room, metering room, and operating room are respectively equipped with switch doors. The switch doors of the control room and the metering room are double-layer doors, and a microcomputer protection device is installed on the door panel of the control room. , switch-off button 8, switch-on button, energy storage knob; the pole-mounted circuit breaker is installed in the incoming line room, and the column-mounted circuit breaker is installed at the bottom of the line-incoming room through the column-mounted bracket. The wire ends are respectively connected to the A-phase high-voltage incoming line copper bar, the B-phase high-voltage incoming line copper bar and the C-phase high-voltage incoming line copper bar. The transformer is connected to the A-phase high-voltage outgoing copper bar, the B-phase high-voltage outgoing copper bar, and the C-phase high-voltage outgoing copper bar. Through this invention, personal safety can be effectively protected, and the splicing and installation of a single component is used. The cost is relatively low, and maintenance Convenience, if individual parts are detected to be damaged, it is easy to overhaul.

Description of drawings

Fig. 1 is a left side view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a right side view of the present invention.

Figure 4 is the control chamber and metering chamber of the present invention.

Figure 5 is a front view (hiding the front door panel and hiding the observation window door panel).

FIG. 6 is an internal schematic diagram 1 .

FIG. 7 is an internal schematic diagram 2 .

Fig. 8 is a schematic diagram of a pole-mounted circuit breaker.

Figure 9 is a schematic diagram of the control room.

Fig. 10 is a pole-mounted circuit breaker protection CT transformation ratio adjustable structure 1.

Fig. 11 is the pole-mounted circuit breaker protection CT transformation ratio adjustable structure 2.

Fig. 12 is a schematic diagram 1 of the electromagnetic lock.

Fig. 13 is a schematic diagram 2 of the electromagnetic lock.

Fig. 14 is the rear door latch mounting plate structure 1.

Fig. 15 is the rear door latch mounting plate structure 2.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figure 1-15, an intelligent high-voltage floor-standing metering box with integrated three-stage protection and five compartments is separated. The high-voltage floor-standing metering box generally includes five parts: the incoming line room 101, the outgoing line room 102, and the control room. 103, the metering room 104, the operation room 42, and the five rooms are separated by metal partitions, forming independent rooms to ensure mutual independence and no mutual influence.

The metering box is equipped with open and close doors, which are hinged on the column profile. The front part of the metering box is a double-layer door design. The left side of the front door 1 is hinged on the column profile of the metering box. The handle 1001 of 1, the inside of the front door 1 is provided with a control room 103 and a metering room 104, the control room 103 is distributed on the left side, and the metering room 104 is distributed on the right side, the control room 103 and the metering room 104 can perform parameter setting and Debugging, you can also observe the reading of the meter in the metering room, and read the meter.

The control room 103 is provided with a control room door panel 5, which is hinged on the left column, and the control room door panel 5 is equipped with a microcomputer protection device 7, a forced live display 6, an opening button 8, and an opening button 8 Integrated indicator light, closing button 9, closing button 9 integrated indicator light, energy storage knob 10. Without opening the door panel 5 of the control room, the parameter setting of the microcomputer protection device and the joint adjustment with the circuit breaker can be carried out, and the opening and closing of the circuit breaker can be controlled through the opening and closing button, and the circuit breaker can be adjusted through the energy storage knob. The organization performs energy storage operations. The compulsory charging indicator 6 receives the induced voltage signal from the high voltage sensor to indicate whether the high voltage side is charged.

The metering room 104 is equipped with a metering room door panel 11, which is hinged on the right side column. There are two observation windows on the upper part of the metering room door panel 11: the observation window 13 of the electric energy meter and the observation window 14 of the electric energy collection terminal. The table observation window 13 and the electric energy collection terminal observation window 14 are made of transparent plexiglass. Without opening the door panel of the metering room, the power consumption of the electric energy meter can be seen through the observation window 13 of the electric energy meter, and the real-time digital display of the electric energy collection terminal can be seen through the observation window 14 of the electric energy collection terminal.

The observation window of the incoming line room and the observation window of the outgoing line room are designed. The observation window door panel of the incoming line room and the observation window of the outgoing line room are arranged on the upper part of the control room and the metering room. The observation window door panel of the incoming line room and the observation window of the outgoing line room are installed. Respectively hinged on the left and right columns, the inlet room observation window door panel is provided with an inlet room observation window 15, the outlet room observation window door panel is equipped with an outlet room observation window, the inlet room observation window 15 can see the power supply in the inlet room The working status of voltage transformers, pole-mounted circuit breakers, high-voltage fuses, lightning arresters, high-voltage incoming cables and cable heads, etc. Outlet room observation window 16 can see the working state of metering current transformer, metering voltage transformer, high voltage fuse, outlet cable and cable head etc. in outlet room. Through the two observation windows, if the components in the incoming line room and the outgoing line room have aging cracks, spark discharge, dirt and condensation, etc., they can be found in time and dealt with in time to prevent accidents.

Structural arrangement of components in the incoming line room. The left side of the metering box is the incoming line room, and the right side of the metering box is the outgoing line room. There is a middle partition 28 in the metering box between the incoming line room and the outgoing line room. The room is separated so that the incoming line room and the outgoing line room are separated into separate rooms. Inside the incoming line room, there is a cable entry hole 25 at the bottom of the box; a pole-mounted circuit breaker bracket 24 is arranged at the bottom of the line-incoming room, and the pole-mounted circuit breaker The pole-mounted circuit breaker 20 is fixed with screws on the upper part of the breaker bracket 24. The pole-mounted circuit breaker 20 includes a lower mechanism box and three poles on the upper part of the mechanism box. The three poles are the incoming wire ends of the pole-mounted circuit breaker 20. The three poles of the device 20 are respectively bolted to A-phase high-voltage outgoing line copper bar 221, B-phase high-voltage outgoing line copper bar 222 and C-phase high-voltage outgoing line copper bar 223, A-phase high-voltage outgoing line copper bar 221, B-phase high-voltage outgoing line copper bar 222 and Phase C high-voltage outlet copper bars 223 are all L-shaped, and the end of the three high-voltage incoming line copper bars away from the circuit breaker 20 on the column is provided with a long round hole, which is used to fix the high-voltage cable passing through the cable inlet hole 25, and the A-phase high-voltage Three high-voltage sensors 21 are respectively fixed on the outgoing line copper bar 221, the B-phase high-voltage outgoing line copper bar 222 and the C-phase high-voltage outgoing line copper bar 223. The high-voltage incoming line copper bar is fixed on the metering box through the high-voltage sensor 21. The high-voltage sensor 21 senses the power Voltage, cooperates with charged indicator 6 and can indicate whether the metering box inlet end is electrified. On the upper part of the high-voltage incoming copper bar 22, there is a lightning arrester 19 connected in parallel. If there is a lightning overvoltage or an operating overvoltage, the lightning arrester can measure the voltage of the pole-mounted circuit breaker 20, current transformer 23, A-phase voltage transformer 29, and C-phase. The transformer 30 and other primary components are under voltage limiting protection to prevent the primary components from being damaged due to insulation breakdown due to overvoltage. As shown in the figure, there are three high-voltage incoming line copper bars 22, which are A-direction high-voltage incoming line copper bar 221, B-direction high-voltage incoming line copper bar 222, and C-direction high-voltage incoming line copper bar 223. The incoming line copper bar 221 and the B-direction high-voltage incoming line copper bar 222 are also connected in parallel with a power supply voltage transformer 17 with a transformation ratio of 10kV/0.22kV to provide 220V power for microcomputer protection, lighting, and pole-mounted circuit breaker motor mechanisms. Two high-voltage fuses 18 are connected in series between the voltage transformer 17 and the A-direction high-voltage incoming copper bar 221 and between the voltage transformer 17 and the B-direction high-voltage incoming copper bar 222. The fuse can be blown quickly to protect the voltage transformer 17.

After the current passes through the vacuum bubble inside the pole-mounted circuit breaker, it goes to the outlet connection terminal 26 of the pole-mounted circuit breaker 20 . The outlet terminal 26 of the circuit breaker on the pole is divided into the outlet terminal 261 of the circuit breaker on the pole A, the outlet terminal 262 of the circuit breaker on the B pole and the outlet terminal 263 of the circuit breaker C on the pole, corresponding to the A of the three-phase electricity respectively. direction, direction B and direction C.

At the outlet end of the circuit breaker 20 on the column, a protective current transformer 23 is connected in series. If the rear-end load outlet is short-circuited, the current suddenly increases, and the current transformer induces a secondary current, which cooperates with the microcomputer protection device to control the opening of the circuit breaker. It can realize three-stage protection of quick break, time-limited quick break and overcurrent to prevent primary components from being burned when the back-end load is short-circuited, and to protect the safe use of primary components. On the outgoing line terminal, the outgoing line copper bar is connected. Between the wire inlet chamber and the wire outlet chamber, there is a partition plate 28 in the metering box, which separates the wire inlet chamber and the wire outlet chamber, and the wire inlet chamber and the wire outlet chamber are separated into chambers. On the partition plate in the metering box, corresponding to the position of the copper bar, a hole is opened, and a wall bushing 27 is installed to ensure insulation and prevent breakdown discharge.

Arrangement of internal components in the outlet room: Since the 10kV power supply system is three-phase balanced and the neutral point is not grounded, all high-voltage metering usually adopts a three-phase three-wire metering method, that is, two metering current transformers for phase A and phase C, and two metering current transformers for phase A and C. A metering voltage transformer, B-phase voltage and B-phase current are synthesized through A-phase and C-phase.

The outlet connection terminal 26 of the pole-mounted circuit breaker 20 passes through the middle partition plate 28 of the metering box and is connected to the current transformer inlet line bar at the outlet end, wherein, the A-to-pole pole-mounted circuit breaker outlet connection terminal 261 is connected to the A-phase current transformer inlet line Row 34, A-phase current transformer incoming line row 34 is connected to A-phase metering current transformer 35, A-phase metering current transformer 35 is fixedly installed in the middle partition plate 28 of the metering box toward the side of the outlet room, A-phase metering current transformer 35 lower ends are fixed with A-phase outgoing wire row 36, and A-phase outgoing wire row 36 ends are provided with oblong hole, fixed cable draws metering box from the outlet hole that outlet chamber bottom is provided with on the oblong hole.

The phase A current transformer incoming line bar 34 is connected to the upper part of the A phase high voltage fuse 31, and the other end of the A phase high voltage fuse 31 is connected to the A phase metering voltage transformer 29. If the load at the rear end of the A phase voltage transformer is abnormal The high-voltage fuse can be blown quickly to protect the voltage transformer. The A-phase metering voltage transformer 29 is fixed on the upper part of the partition plate 28 facing the outlet room in the metering box.

In the same installation method, the outlet terminal 263 of the circuit breaker on the C column is connected to the incoming line bar 41 of the C-phase current transformer, and the incoming line bar 41 of the C-phase current transformer is connected to the C-phase metering current transformer 40, and the C-phase metering current transformer 40 is fixedly installed on the side of the partition plate 28 facing the outlet room in the metering box. The lower end of the C-phase metering current transformer 40 is fixed with a C-phase outlet bar 39, and the end of the C-phase outlet bar 39 is provided with a long round hole, and the cable is fixed on the long round hole. The metering box is drawn out from the outlet hole provided at the lower part of the outlet chamber. C-phase current transformer incoming line bar 41 is connected with C-phase high-voltage fuse 33 to the upper part, and the other end of C-phase high-voltage fuse 33 is connected with C-phase metering voltage transformer 30, and C-phase metering voltage transformer 30 is fixed in the metering box at intervals The plate 28 faces the upper position on one side of the outlet room.

The outlet connection terminal 262 of the circuit breaker on the B column is connected to the B-phase outlet bar 38. The end of the B-phase outlet bar 38 is provided with a long hole, and the fixed cable on the long hole is drawn out of the metering box from the outlet hole provided at the lower part of the outlet room. The B-phase outlet line bar 38 is connected to the upper part with a B-phase high-voltage fuse 32, and the other end of the C-phase high-voltage fuse 33 passes through the line bar A-phase metering voltage transformer 29 and C-phase metering voltage transformer 30 to measure A-phase and C-phase The B-phase voltage synthesized by the voltage transformer 30 is used for protection. The B-phase outlet bar 38 is fixed on the middle partition plate 28 of the metering box through the B-phase insulator.

There is an operating room 3 at the lower left side of the metering box, and the operating room 42 is a separate room, which is separated from the incoming line room by the bottom plate of the energy storage room, which ensures that the operator stays away from the primary high-voltage live parts in the operating room and ensures the safety of the operator. . The left side of the operating door of the operating room 3 is hinged on the column, and the right side is provided with a handle, which can be opened conveniently. The opening and closing operation shaft 50 and the energy storage operation shaft 45 are installed on the circuit breaker 20 on the column. The operating shaft 50 and the energy storage operating shaft 45 are installed inside the operating room 3. The opening and closing operating shaft 50 is provided with an opening and closing operating handle 48, and the opening and closing signs 49 are respectively riveted on the left and right sides of the opening and closing operating handle. And closing signs 51, indicating the direction of opening and closing operations. An energy storage handle 44 is installed at the end of the energy storage operation shaft 45, and an energy storage label 43 is riveted on the energy storage handle to instruct operators to perform energy storage operations. On the bottom plate of the energy storage room, there are also an opening and closing observation window 47 and an energy storage observation window 46, from which the opening and closing state and the energy storage state of the circuit breaker installed in the incoming line room can be seen. The operator can complete the opening and closing operation and energy storage operation of the circuit breaker on the ground, and can see the opening and closing status and energy storage status of the circuit breaker, which makes the operation and status observation more convenient and ensures the safety of the operator. Safety.

The heat dissipation and ventilation structure design of the box body. The internal high-voltage components will pass a large working current during normal operation, and the current will generate heat when passing through the conductor. In order to ensure the heat dissipation and ventilation of the box, a strip hole 531 is added on the top cover fixing plate. Ensure that when the internal hot air flow rises, the hot air flow can dissipate heat outward through the strip-shaped cooling holes. Reducing the temperature inside the box can improve the life of components and the reliability of work.

The pole-mounted circuit breaker protects the structure with adjustable CT ratio. In the actual use of the metering box, the back-end load may vary greatly, or the implementation does not know the size of the back-end load. When the metering box leaves the factory, the CT ratio of the internal pole-mounted circuit breaker is adjustable in three levels: 200/5, 400/5, and 600/5. In order to facilitate the adjustment of CT ratio in the field and during actual use, a structure for CT ratio adjustment is designed in the control room of the metering box. If you need to adjust the CT ratio, you only need to open the door of the control room, and then remove the CT ratio adjustment cover, then you can remove the cover of the CT ratio adjustment box and adjust the wiring to adjust the CT ratio without The incoming room needs to be opened, and there is no need to touch live high-voltage components.

The safety structure design that the doors of the incoming line room and the outgoing line room cannot be opened after the high voltage side is charged. After the power is supplied to the incoming line side, because the voltage of the primary live parts is as high as 10kV, in order to prevent the doors of the incoming line room and the outgoing line room from being opened, a structural design is designed to prevent the doors of the incoming line room and the outgoing line room from being opened after the high-voltage side is electrified. The specific scheme is to install a door panel deadbolt 62 on the inner side of the door panel of the incoming line room, the door panel deadbolt 62 is provided with a lock hole, and an electromagnetic lock bracket 63 is fixedly arranged on the corresponding position of the metering box box corresponding to the door panel deadbolt 62 . An electromagnetic lock is installed on the electromagnetic lock bracket 63, and the electromagnetic lock is electrically connected to the mandatory charged display. After the electromagnetic lock rod 61 of the electromagnetic lock is stretched out, it matches the lock hole on the door plate dead bolt 62, and can lock the incoming line door. die. After the incoming door is closed, if the high-voltage side sends power, the high-voltage sensor will induce a voltage, and the voltage signal will be fed back to the mandatory live display, and the indicator light of the compulsory live display will light up, and will give a blocking signal to the electromagnetic lock. After the lock receives the locking signal, the electromagnetic lock rod 61 stretches out and is inserted into the waist-shaped hole of the door panel lock tongue. At this time, the inlet door of the metering box cannot be opened to prevent the operator from entering the high-voltage charged compartment due to misoperation. Electric shock accident.

Back door can open structural design when there is no electricity. In order to facilitate installation and maintenance, a mechanism for opening the rear door when there is no power is designed. Inside the rear door, a latch mounting plate 66 is installed, and on the latch mounting plate 66, a latch mounting base 65 is fixed. The latch pin shaft 67 is installed on the latch mounting base 65, and the latch pin shaft 67 is installed on the upper part of the metering box rear door near the edge of the profile. The back door 64 of the metering box is locked so that it cannot be opened from the outside. When assembling, or when the high-voltage side has no electricity and the door of the incoming line room can be opened, pull down the pin shaft to unlock the back door. Similarly, The same structure is also set at the lower position to make it more secure when locked. The latch below is also operated in the same way, and the rear door can be opened.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as within the scope of this specification. When the combination of technical solutions is contradictory or unrealizable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present invention. Moreover, it is within the scope of this description for those skilled in the art to make various changes, modifications, substitutions and variations to these embodiments without departing from the spirit of the principles of the present invention.

What has been described above is only the preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, some changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the present invention. scope of protection.

Claims (10)

1. An intelligent high-pressure floor-standing metering box, including a metering box body, is characterized in that: the inside of the cabinet is divided into independent incoming line room, outgoing line room, control room, metering room, operation room, the incoming line room, outgoing line room, control room, metering room, and operating room are respectively equipped with switch doors. device, compulsory electrification display, opening button 8, closing button, energy storage knob; the pole-mounted circuit breaker is installed in the incoming line room, and the pole-mounted circuit breaker is installed at the bottom of the line-incoming room through the pole-mounted bracket, and the pole-mounted circuit breaker is installed on the pole The three incoming terminals of the circuit breaker are respectively connected to the A-phase high-voltage incoming copper bar, the B-phase high-voltage incoming copper bar and the C-phase high-voltage incoming copper bar. The three protective current transformers are respectively connected to the A-phase current transformer incoming line bar, the B-phase high-voltage outgoing line copper bar and the C-phase current transformer incoming line bar. 2. An intelligent high-voltage floor-standing metering box as claimed in claim 1, characterized in that: the phase A high-voltage incoming copper bar, the B-phase high-voltage incoming copper bar and the C-phase high-voltage incoming copper bar are respectively There is a surge arrester in parallel. 3. An intelligent high-voltage floor-standing metering box as claimed in claim 1, characterized in that: the A-phase high-voltage incoming line copper bar and the B-phase high-voltage incoming line copper bar are connected in parallel with power supply voltage transformers, which belong to The transformation ratio of the power supply voltage transformer is 10kV/0.22kV. 4. An intelligent high-voltage floor-standing metering box as claimed in claim 1, characterized in that: the A-phase current transformer incoming line bar is connected to the A-phase metering voltage transformer and the C-phase current transformer incoming line bar Connect phase C metering voltage transformer, phase A current transformer incoming line row to A phase metering current transformer, C phase current transformer incoming line bar connect C phase metering current transformer, B phase high voltage outlet copper bar connect A phase Metering voltage transformer and C-phase metering voltage transformer. 5. An intelligent high-voltage floor-standing metering box as claimed in claim 1, characterized in that: the pole-mounted circuit breaker is equipped with an opening and closing operation shaft (50) and an energy storage operation shaft (45), so The above-mentioned opening and closing operation shaft (50) and energy storage operation shaft (45) extend to the operation room. 6. An intelligent high-pressure floor-standing metering box according to claim 5, characterized in that: the operating room is provided with an opening and closing observation window (47) and an energy storage observation window (46). 7. An intelligent high-pressure floor-standing metering box as claimed in claim 1, characterized in that: said metering chamber is provided with an observation window, and said observation window is made of transparent plexiglass. 8. An intelligent high-voltage floor-standing metering box as claimed in claim 1, characterized in that: the protective CT ratio of the pole-mounted circuit breaker is adjustable, and the CT ratio of the pole-mounted circuit breaker is 200/5, 400/5, 600/5 three gears are adjustable. 9. An intelligent high-voltage floor-standing metering box according to claim 1, characterized in that: a first electromagnetic lock is installed on the inner side of the switch door of the inlet room, and a second electromagnetic lock is installed on the inner side of the switch door of the outlet room , the first electromagnetic lock and the second electromagnetic lock are electrically connected to the mandatory charged display. 10. An intelligent high-pressure floor-standing metering box according to claim 9, characterized in that: a bolt mounting plate is provided on the inner edge of the rear door.

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