CN205541130U - Prepayment device - Google Patents

Abstract

The utility model provides a prepayment device, includes the box, and wherein the box opens the door on four sides, openly is control room and measuring room in the box, and the right flank is business turn over line room, the middle switch gear room that is, left surface and trailing flank are the access path, and vacuum circuit breaker operation ware, observation window, electrified display panel, short circuit and earth fault indication surface board are installed to the control room: installation electric energy meter and terminal in the measuring room, business turn over line room installation wall bushing, install metering mutual inductor, high -pressure vacuum circuit breaker and three -station isolation switch in the switch gear room, just be equipped with the observation window to three -station isolation switch on the baffle, four summit punishment of box upper cover do not set up a temperature sensor and a humidity transducer, central controller and long -range wireless communication device are still installed to the control room, and long -range wireless communication device, temperature sensor and humidity transducer connect central controller respectively, and compact structure is simple, more safe and reliable.

Description

A kind of prepaid devices

Technical field

This utility model relates to field of power, is specifically related to a kind of prepaid devices.

Background technology

High-voltage prepaid metering device as power equipment important in power system, be mainly used in connect electric power system, by High-voltage measuring box, High-voltage switch gear, control chamber, connection cable, mounting bracket etc. form, and are that the foundation of electric energy trade settlement is the most also to control electricity charge risk Effective means.Along with the development of power technology, popular various metering controls on market, wherein have the most simply, have Ground, have on post, that have pre-payment type, have and look meter and charge, but existing high-voltage prepaid metering device batch meter inner structure is multiple Miscellaneous, internal wiring is messy, carries out data acquisition for maintenance and staff and maintenance and inspection bring all inconvenience, reduces work effect Rate.At present in electric power system, it is pre-that 10kV high-voltage prepayment device mainly uses the additional batch meter of outdoor vacuum circuit breaker on post to carry out electric energy Paying and measure, the general setting height(from bottom) of this mode is higher, is difficult to check meter and keep in repair, and secondary measurement line is longer, and easily metering is inaccurate.Also have A part uses lands prepaying batch meter, batch meter and vacuum circuit breaker is placed in a closed enclosure body, easy to maintenance, but reaches Less than five anti-requirements, there is potential safety hazard.High-voltage prepaid metering device in the market, once there is High-voltage measuring box fault, can be led Apply the power failure of family even whole piece 10KV public line, have impact on power supply reliability, so, control high-voltage meter fault pair The impact that 10KV circuit runs, is all significant to raising power supply quality, simplification apparatus structure, lifting good service level.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of compact conformation is simple, safer land reliably pre- Paying complexes.

This utility model provides a kind of prepaid devices, and including casing, wherein open the door in casing four sides, and in casing, front is control room and meter Amount room, right flank is line-in and line-out chamber, centre be switch gear room, left surface and trailing flank be access path；

Control room is provided with vacuum circuit breaker operating device, observation window, electrification display panel, short circuit and earth fault indication panel:

Metering indoor location electric energy meter and terminal；

Wall bushing is installed by line-in and line-out chamber；

Being provided with metering transformer, high-pressure vacuum breaker and tri-station isolating switch in switch gear room, wherein metering transformer is arranged on out Closing indoor top, circular chute is arranged at bottom；Tri-station isolating switch is arranged on the bottom in switch gear room, by vacuum circuit breaker operating device Interlock with high-pressure vacuum breaker；

Just tri-station isolating switch is being provided with observation window on dividing plate；

Four apex of box cover are respectively provided with a temperature sensor and a humidity sensor；

Control room is also equipped with central controller and long-distance radio communication device, and long-distance radio communication device connects central controller.

Further, one or more the combination during long-distance radio communication device is GPRS, 3G, 4G and WIFI.

Further, by GPRS, 3G, 4G and/or WIFI form, the wireless terminal of prepaid devices and user is bound.

Further, wireless terminal is mobile phone, panel computer and/or PC computer.

Further, four doors of casing use 2mm thickness galvanized sheet to separate.

Further, measuring room is encapsulated by transparent table case.

Further, the access path on rear side of casing is provided with one layer of lucite protective door after opening the door.

Further, described upper cover sunk type rain-proof cover.

Further, long cable section of ingoing line passes through tangible cable plug connector, is connected to the inlet wire side of the inlet wire wall bushing of line-in and line-out chamber, By wall bushing through switch gear room and the dividing plate of line-in and line-out chamber, access switch room, then it is connected to measure transformer inlet wire side by copper bar, It is suitable for reading that metering transformer outgoing line side is connected to side-mounted high-pressure vacuum breaker through copper bar, through arc-chutes to vacuum circuit breaker end opening, then leads to Cross copper bar and be connected to tri-station isolating switch, be drawn out to line-in and line-out chamber finally by outgoing line wall bushing, connect by tangible cable plug Head outgoing cable, realizes one by connect-disconnect plug and enters to have more.

Further, described upper cover sunk type rain-proof cover has the gradient of 3-18 degree.

Prepaid devices of the present utility model, it is possible to achieve:

1) integrated level is high, powerful, compact conformation, safe and reliable；

2) box cover has certain slope, prevents rainwater from piling up, and box cover uses sinkage type structure, can effectively prevent rainwater along upper Lid edge enters casing, the casing gradient of optimization and the setting of angle so that equipment is hardly damaged, and service life is longer；

3) installation of slide track so that device convenient disassembly, safeguard and overhaul convenient；

4) setting of temperature and moisture sensors, monitoring of environmental data that can be real-time, temperature when device normal is used and wet Degree scope carries out threshold ratio relatively so that device is hardly damaged, and service life is longer, and the temperature and humidity after optimizing Value so that monitoring environmental data is more preferably accurate, and device usefulness improves；

5) long-distance radio communication device and wireless terminal coupling are arranged so that prepaid devices manipulation is flexible and changeable, status real time monitor, In hgher efficiency, maintenance cost is lower.

Accompanying drawing explanation

Fig. 1 prepaid devices axonometric drawing one

Fig. 2 prepaid devices view two

Fig. 3 prepaid devices view three

Fig. 4 prepaid devices front view

Fig. 5 prepaid devices cut-away view

Detailed description of the invention

It is embodied as the following detailed description of of the present utility model, it is necessary to it is pointed out here that, below enforcement is only intended to of the present utility model Further illustrating, it is impossible to be interpreted as the restriction to this utility model protection domain, this art skilled person is according to above-mentioned this utility model Some nonessential improvement and adjustment that this utility model is made by content, still fall within protection domain of the present utility model.

This utility model provides a kind of prepaid devices, as it is shown in figure 1, include casing 1, wherein open the door in casing 1 four sides, casing 1 Interior front is control room 2 and measuring room 3, and right flank is line-in and line-out chamber 4, and centre is switch gear room, as shown in Figures 2 and 3, left surface and Being access path 5 below, four doors employing 2mm thickness galvanized sheets of casing separate Accident prevention and spread.As shown in Figure 4, control room 2 Vacuum circuit breaker operating device 6, boundary controller 7, electrification display panel, short circuit and earth fault indication panel etc. are installed, wherein Vacuum circuit breaker operating device 6 is for disconnecting switch operation and vacuum circuit breaker mechanical latching, and boundary controller 7 is for various protections, pre- Pay and control use, observe disconnecting switch fracture, vacuum circuit breaker operating device Non-follow control and display circuit-breaker switching on-off by observation window 8, Also set up a central controller in control room, be connected with the equipment in device respectively, for centralized Control and operation device；In measuring room 3 Electric energy meter and terminal are installed, are encapsulated by transparent table case, prevent user from stealing electricity；Wall bushing 9 is installed, by touching by line-in and line-out chamber 4 Touching type cable termination plug joint to be connected with line, line-in and line-out chamber is the most tangible, safe and reliable；As it is shown in figure 5, pacify in switch gear room Dress metering transformer 10, high-pressure vacuum breaker 11 and tri-station isolating switch 12, wherein metering transformer 10 is arranged on switch gear room Interior top, circular chute is arranged at bottom, directly can be extracted out on the left of casing by metering transformer 10, be convenient for changing, three stations isolation The bottom that switch is arranged in switch gear room, is interlocked with high-pressure vacuum breaker 11 by vacuum circuit breaker operating device 6, has perfect five Anti-function, is just being provided with observation window 7 to disconnecting switch, it is possible to observe directly whether disconnecting switch disconnects, it is ensured that power-off on dividing plate In the case of carry out maintenance activity, substantially increase the safety of maintainer.Access path it also is provided with, after access path opens the door on rear side of casing It is provided with one layer of lucite protective door, not only can clearly see the inside disconnecting switch fracture clearly, can isolate with live part again, safety Reliably.Additionally, also install long-distance radio communication device in control room, for the information such as duty, equipment fault is sent to user's Wireless terminal, user can be passed through the various information consulting device that wireless terminal is real-time, and remotely be controlled, wherein by wireless terminal By GPRS, 3G, 4G and/or WIFI form, the wireless terminal of device and user can be bound, wireless terminal can be mobile phone, Panel computer and/or PC computer.

Long cable section of ingoing line passes through tangible cable plug connector, is connected to the inlet wire side of the inlet wire wall bushing 9 of line-in and line-out chamber 4, by wearing Wall sleeve 9, through the dividing plate of switch gear room with line-in and line-out chamber 4, access switch room, is then connected to combined instrument transformer inlet wire side by copper bar, Bus type protection transformer is installed between combined instrument transformer and inlet wire wall bushing, is used for sampling load current and protects for secondary circuit. It is suitable for reading that combined instrument transformer outgoing line side is connected to side-mounted high-pressure vacuum breaker through copper bar, through arc-chutes to vacuum circuit breaker end opening, then It is connected to tri-station isolating switch 12 by copper bar, is drawn out to line-in and line-out chamber 4 finally by outgoing line wall bushing, by tangible cable Plug joint outgoing cable, can realize one by connect-disconnect plug and enter to have more.

Whole major loop copper bar all uses compound insulating sleeve to be protected by, and except disconnecting switch incision position is the most tangible, overall operation is pacified Complete reliable, it is to avoid toy enters and causes the fault such as short circuit, ground connection.Tri-station isolating switch 12 and high-pressure vacuum breaker 11 are by three Station operating mechanism carries out chain, has an anti-facility of perfect five:

1. can only could forward handle to " disjunction " position from " work " position after the certain disjunction of chopper, divide, close disconnecting switch, Prevent on-load from dividing, close disconnecting switch.

2. being in "on" position when chopper and upper and lower disconnecting switch, handle can not go to " maintenance " or " disjunction " position, it is to avoid A by mistake point chopper, when handle is in " disjunction " position, can only the upper and lower disconnecting switch of splitting or integrating, it is impossible to close chopper, it is to avoid close by mistake Chopper.

3., when the non-separating brake of upper and lower disconnecting switch, earthed switch would not close, and handle can not forward " maintenance " position to from " disjunction " position Put, live connection of ground wire can be prevented.

4. the non-separating brake of earthed switch, upper and lower disconnecting switch would not be closed, and can prevent line with ground from closing upper and lower disconnecting switch.

As follows in concrete operations:

1. power failure operation

Prepaid devices is in operating position, i.e. tri-station isolating switch and high-pressure vacuum breaker is in "on" position, is in charging operation In, now handle is in " work one " position.Dividing chopper, handle forwards " disjunction " position to, and at this moment chopper can not close a floodgate, behaviour Make hole movable tongue to be unlocked, will reverse in operation handle update hole, point disconnecting switch, and close earthed switch.Take out operation handle, At this moment can forward handle to " maintenance " position from " disjunction " position, now handle hole movable tongue is turned off, and power failure operation is complete, can To observe whether disconnecting switch disconnects by observation window, then switch gear room and line-in and line-out chamber can be safeguarded and overhaul by maintainer.

2. power transmission operation

Overhauling complete, forward handle to " disjunction " position from " maintenance " position, chopper can not close a floodgate, and handle hole movable tongue is opened Open, clockwise in handle update hole being operated, point earthed switch, closes disconnecting switch, takes out operation handle, by handle from " disjunction " Position forwards " work " position to, and now handle hole movable tongue is turned off, at this moment can be by breaker closing, power transmission end of operation.

In actual applications, four apex of casing 1 upper cover are respectively provided with a temperature sensor and a humidity sensor, wherein four temperature Degree sensor and the temperature and humidity of four humidity sensor measurements respectively are T1, T2, T3, T4, and H1, H2, H3, H4, Temperature value T and humidity value H is obtained after being handled as follows respectively:

T₁₁=0.15 × T1+0.2 × T2+0.25 × T3+0.4 × T4；

T₁₂=0.15 × T3+0.2 × T4+0.25 × T1+0.4 × T2；15

$T=\frac{T_{11}+T_{12}}{2};$

H₁₁=0.18 × H1+0.26 × H2+0.22 × H3+0.34 × H4；

H₁₂=0.18 × H2+0.26 × H4+0.22 × H1+0.34 × H3；

$H=\frac{H_{11}+H_{12}}{2};$

Temperature value T when after treatment exceedes default temperature threshold M and/or humidity value H when exceeding default humidity threshold N, from Moving and carry out power failure operation, observe whether tri-station isolating switch disconnects by observation window, then switch gear room and line-in and line-out chamber are entered by maintainer Row is safeguarded and maintenance, carries out power transmission operation after maintenance.

Second protection loop is made up of short-circuit and earth-fault indicator, electrification display, intelligent demarcation controller, protection transformer, tool There are charged display, ground connection and indicating fault, divide-shut brake instruction, remote control and manual divide-shut brake function.Have fast tripping protection, overcurrent protection, Zero-sequenceprotection, No. three reclosings, reclosing, closing by hands distant control function, full chinese liquid crystal display under Accelerated trip, bar on trouble point, Definite value, GSM communication function can be set by button, the function such as fault active reporting.

Short circuit and earth-fault indicator are by main frame, and three short trouble sensors, a ground fault sensor and fiber-optic signal line form. Sensor detection short-circuit current and earth-fault current, and transmitting stage main frame.The out of order trigger point of sensor internal, works as sensor When electricity Chinese pulse value being detected higher than preset value, signal is transferred to CPU failure judgement waveform and fault pulsation punching in main frame, and main frame Pulse width (i.e. fault time delay), if signal also reaches preset value, LED relevant on main frame will flash to show fault.

Short trouble sensor: be provided with fault current and trigger the short circuit current transformer of circuit, pass through optical fiber when fault current being detected Transfer signals to main frame.

Ground fault sensor: fault current is set and triggers the zero sequence current mutual inductor of circuit, when singlephase earth fault occurs in cable, cause When three-phase current vector summation is not zero, sensor detects fault and signal is defeated by main frame.

Electrification display is transferred to main frame by the faradism on wall bushing, and charged then display lamp is bright, it is possible to prompting operation maintainer master Whether loop has electricity.

Intelligent demarcation controller compares judgement circuit event by protection transformer and ZCT sensed current signal with set customization Barrier, thus carries out respective handling, has fast tripping protection, overcurrent protection, zero-sequenceprotection, No. three reclosings, reclosing, closing by hands exist Distant control function, full chinese liquid crystal display under Accelerated trip, bar on trouble point, can arrange definite value, GSM communication function, fault by button The functions such as active reporting.

Although for illustrative purposes, it has been described that illustrative embodiments of the present utility model, it will be understood by those of skill in the art that In the case of the scope and spirit of the utility model disclosed in claims, various repairing can be carried out in form and details Change, add and the change of replacement etc., and all these change all should belong to the protection domain of this utility model claims, and this Each step in each department of product that utility model is claimed and method, can combine with form in any combination.Therefore, Description to embodiment disclosed in this utility model is not intended to limit scope of the present utility model, but it is new to be used for describing this practicality Type.Correspondingly, scope of the present utility model is not limited by embodiment of above, but is defined by claim or its equivalent.

Claims (10)

1. a prepaid devices, including casing, wherein open the door in casing four sides, and in casing, front is control room and metering Room, right flank is line-in and line-out chamber, centre be switch gear room, left surface and trailing flank be access path, it is characterised in that:

Control room is provided with vacuum circuit breaker operating device, observation window, electrification display panel, short circuit and earth fault and refers to Show panel:

Metering indoor location electric energy meter and terminal；

Wall bushing is installed by line-in and line-out chamber；

Metering transformer, high-pressure vacuum breaker and tri-station isolating switch are installed in switch gear room, wherein measure mutual inductance Device is arranged on the top in switch gear room, and circular chute is arranged at bottom；Tri-station isolating switch is arranged on the bottom in switch gear room, Interlocked with high-pressure vacuum breaker by vacuum circuit breaker operating device；

Just tri-station isolating switch is being provided with observation window on dividing plate；

Four apex of box cover are respectively provided with a temperature sensor and a humidity sensor；

Control room is also equipped with central controller and long-distance radio communication device, long-distance radio communication device, temperature sensor Central controller is connected respectively with humidity sensor.

2. prepaid devices as claimed in claim 1, it is characterised in that: long-distance radio communication device is GPRS, 3G, One or more combination in 4G and WIFI.

3. prepaid devices as claimed in claim 2, it is characterised in that: by GPRS, 3G, 4G and/or WIFI The wireless terminal of prepaid devices and user is bound by form.

4. prepaid devices as claimed in claim 3, it is characterised in that: wireless terminal be mobile phone, panel computer and / or PC computer.

5. prepaid devices as claimed in claim 1, it is characterised in that: four doors of casing use 2mm thickness zinc-plated Plate separates.

6. prepaid devices as claimed in claim 1, it is characterised in that: measuring room is encapsulated by transparent table case.

7. prepaid devices as claimed in claim 1, it is characterised in that: the access path on rear side of casing sets after opening the door There is one layer of lucite protective door.

8. prepaid devices as claimed in claim 1, it is characterised in that: described upper cover sunk type rain-proof cover.

9. prepaid devices as claimed in claim 1, it is characterised in that: long cable section of ingoing line is inserted by tangible cable Pull out joint, be connected to the inlet wire side of the inlet wire wall bushing of line-in and line-out chamber, by wall bushing through switch gear room and turnover The dividing plate of line room, access switch room, then it is connected to measure transformer inlet wire side by copper bar, measures transformer outlet It is suitable for reading that side is connected to side-mounted high-pressure vacuum breaker through copper bar, through arc-chutes to vacuum circuit breaker end opening, then passes through Copper bar is connected to tri-station isolating switch, is drawn out to line-in and line-out chamber finally by outgoing line wall bushing, passes through tangible Cable plug connector outgoing cable, realizes one by connect-disconnect plug and enters to have more.

10. prepaid devices as claimed in claim 8, it is characterised in that: described upper cover sunk type rain-proof cover has The gradient of 3-18 degree.