CN203722080U - High-voltage pre-order electricity metering cabinet - Google Patents
High-voltage pre-order electricity metering cabinet Download PDFInfo
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- CN203722080U CN203722080U CN201420070659.XU CN201420070659U CN203722080U CN 203722080 U CN203722080 U CN 203722080U CN 201420070659 U CN201420070659 U CN 201420070659U CN 203722080 U CN203722080 U CN 203722080U
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- chamber
- cabinet
- metering
- voltage
- high pressure
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Abstract
The utility model discloses a high-voltage pre-order electricity metering cabinet comprising a metering instrument chamber, a CT and PT control chamber, a metering circuit breaker handcart chamber, a high-voltage control chamber and a branch box electric cable chamber, wherein the metering instrument chamber, the CT and PT control chamber, the metering circuit breaker handcart chamber are isolated from one another; the high-voltage control chamber is mounted at a front left half side of a cabinet body, a switch intelligent operation device and a microcomputer protection device are mounted in the high-voltage control chamber, and a sealing device is applied to the whole high-voltage control chamber; electric cable connecting heads in the branch box electric cable chamber are touch-type connecting heads, and the sealing device is applied to the whole branch box electric cable chamber. The high-voltage pre-order electricity metering cabinet is advantageous in that an RGP601 microcomputer protection apparatus is adopted, automated management is realized, work efficiency is improved, external factors are reduced and man-made electricity stealing behavior is prevented. The touch type electric cable heads are adopted in the electric cable chamber which is independently arranged, and multipath wire outgoing can be realized. Distance between a current transformer and a voltage transformer is increased in the CT and PT chamber, influence exerted on each other by electromagnetic fields can be greatly reduced, and therefore electric energy metering accuracy and reliability can be achieved.
Description
Technical field
The utility model relates to High-Voltage Electrical Appliances metering field, particularly the pre-power purchase metering cabinet of a kind of high pressure.
Background technology
In prior art, the pre-power purchase metering device of high pressure is 10KV three-phase alternating current the complete sets of equipment, is mainly used in electric energy metrical, pre-payment power purchase.And electrical equipment is carried out to power purchase control, protection and detection.Cabinet is mainly processed and (is cut, rushes, rolls over >, use securing member assembled by Digit Control Machine Tool by import aluminizing zinc steel plate.Cabinet has pressure relief device on top, and cabinet door has the louvre that meets degree of protection, and whole comprehensive metering device mainly contains measuring instrument chamber, metering handcart chamber, CT, PT chamber, operation PT power supply room.The indoor metering dolly that is equipped with of metering handcart, can extract out, is convenient to on-the-spot installation, debugging and maintenance, indoor metering current, the voltage transformer of being equipped with of CT, PT, and comprehensive metering device passes through machinery and electric blocking, implement device " five is anti-" function.Due to above-mentioned many functions and advantage, extensively approved.But in use also find some shortcomings and disadvantage: outside 1, former cabinet and power cable connector place are exposed to, easily cause security incident; 2, in former cabinet, there is no monitoring management terminal, can not carry out automatic management to high-voltage metering cubicle, can not realize remote energy data collection and copy, can not automatically protect circuit; 3, in former cabinet, between design current, voltage transformer, distance is very near, and the magnetic field producing between them influences each other, and without harmonic control function, affects the accuracy of electric energy metrical; 4, due to without automatic protection functions, personnel can arbitrarily open high-voltage metering cubicle, and personal safety can not get ensureing, once go wrong, society is caused to harmful effect, and enterprise is caused to direct economic loss.
Summary of the invention
The technical problems to be solved in the utility model be to provide a kind of pre-power purchase metering cabinet of high pressure that can realize automatic management, accurate measurement, use safety.
For solving the problems of the technologies described above, the pre-power purchase metering cabinet of high pressure of the present utility model comprises measuring instrument chamber, CT and PT control room and the metering circuit breaker cart chamber that isolation arranges respectively; Described measuring instrument chamber is arranged at the interior the right above of cabinet, is inside provided with paying electric energy meter, electricity load management terminal; Described CT and PT control room are disposed with metered voltage instrument transformer, earthing action bars, high-tension insulator, metering current mulual inductor, cable joint and fixed contact box after being arranged in cabinet from the bottom up; Described metering circuit breaker cart chamber is arranged at the interior upper right corner below of cabinet, is inside provided with metering circuit breaker; Also comprise the high voltage control chamber on the left side before being arranged in cabinet, indoor switch smart steering device and the microcomputer protecting device of being provided with of described high voltage control, entirety is sealed up setting.
Further, described microcomputer protecting device is RGP601 type microcomputer protecting device.
Further, the pre-power purchase metering cabinet of described high pressure also comprises the cable vault that is arranged at the right in cabinet, and inside cable joint is very touch-type joint, and entirety is sealed up setting.
Further, in described CT and PT control room, be also provided with humidity sensor, heating plate, temperature sensor and suction top ventilating fan, by temperature and humidity in microcomputer protecting device automatic control room.
Further, described current transformer is the split type instrument transformer of 0.2S level, and voltage transformer is 0.2 grade of split type instrument transformer.Be convenient to safeguard and change, reduce because instrument transformer damages the loss causing, and full cast-type combination transformer damage one of them, changes two, can cause unnecessary economic loss simultaneously.
Further, described measuring instrument chamber, CT and PT control room, cable vault's inside door are provided with observation window, and CT and PT control room are provided with position switch.
Owing to having adopted technique scheme, compared with prior art, advantage of the present utility model has:
Adopt RGP601 microcomputer protecting device, realized automatic management, improved operating efficiency, reduced extraneous factor simultaneously and prevented artificial electricity filching behavior, accurate measurement, uses safety.
The independently cable vault arranging adopts flood control very touch-type cable end, can realize multichannel outlet, safe and reliable.
Described current transformer adopts the split type instrument transformer of 0.2S level, voltage transformer adopts 0.2 grade of split type instrument transformer, be convenient to safeguard and change, reduce and damage the loss causing because of instrument transformer, and full cast-type combination transformer damages one of them, change two simultaneously, can cause unnecessary economic loss, and metering is more accurate.
In CT and PT chamber, strengthen the distance of current transformer and voltage transformer, greatly reduced the impact of electromagnetic field each other, thereby electric energy metrical more accurately and reliably.
brief description of the drawings
Fig. 1 is the Facad structure schematic diagram that the utility model is opened Qianmen;
Fig. 2 is the structural representation below that the utility model is opened back door;
Fig. 3 is the feeder pillar structural representation that the utility model is opened right door.
In figure: 1-measuring instrument chamber; 2-high voltage control chamber; 3-signal lamp; 4-switch smart steering device; 5-microcomputer protecting device; 6-three phase metering terminal box; 7-electricity load management terminal; 8-three-phase prepayment table; 9-cable vault; 10-metered voltage instrument transformer; The European cable joint of 11-; 12-high-tension insulator; 13-metering current mulual inductor; 14-fixed contact box; 15-measures circuit breaker cart chamber; 16-measures circuit breaker; 17-CT and PT chamber; 18-high-tension fuse; 19-earthing action bars; 20-humidity sensor; 21-heating plate, temperature sensor and suction top ventilating fan; The European cable sleeve of 22-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1 and Figure 2, the pre-power purchase metering cabinet of high pressure of the present utility model comprises measuring instrument chamber 1, CT and PT control room 17 and the metering circuit breaker cart chamber 15 of isolation respectively.Measuring instrument chamber 1 is arranged on right one side of something before cabinet, and paying electric energy meter 8, electricity load management terminal 7 are inside housed.In CT and PT control room 17, be arranged on after cabinet, metered voltage instrument transformer 10, earthing action bars 19, high-tension insulator 12, metering current mulual inductor 13, cable joint 11, fixed contact box 14 are housed from the bottom up.Metering circuit breaker cart chamber 15 is arranged on the upper right corner of cabinet, and metering circuit breaker 16 is housed.
In the present embodiment, also comprise the high voltage control chamber 2 that is arranged on left one side of something before cabinet, switch smart steering device 4 and microcomputer protecting device 5 are inside housed, entirety adopts sealing device.
Microcomputer protecting device 5 is preferably RGP601 type microcomputer protecting device.It integrates the several functions such as protection, measurement, supervision, man-machine interface, communication, realizes circuit automatically to control, and remote energy data collection is copied, human-computer dialogue, and intelligent electricity anti-theft, harmonic control function, makes electric energy metrical safe and reliable.High voltage control chamber 2 cannot opening door operation charged in the situation that for equipment, only in the situation that having a power failure, 2 of high voltage control chambers could be opened, and has greatly improved personnel's handling safety.
In the present embodiment in CT and PT chamber 17 from the bottom up, metered voltage instrument transformer 10 is that three groups, earthing action bars 19 are arranged on bottommost, high-tension insulator 12 is three groups and is arranged on middle, metering current mulual inductor 13 is that two groups and six cable joints 11 are arranged on the left wall of CT and PT chamber 17, and fixed contact box 14 is three groups and is arranged on the upper position that CT is connected with metering circuit breaker cart chamber 15 with PT chamber 17.
Strengthen the distance of current transformer 13 and voltage transformer 10, reduced electromagnetic field and capacitance current to interactional problem between PT and CT, there is entirety metering composition error optimization, greatly improved the accuracy of electric energy metrical.
High-tension circuit by the Sets of Measurement current transformer 13 of 9 times, cable vault cable joint 11 → wherein, wherein one group, two Sets of Measurement voltage transformers 10 → wherein fixed contact box 14 → metering circuit breaker 16 → another organizes cable joint 11 → user load in fixed contact box 14 → cable vault 9.
Secondary low-voltage circuit is through another group current transformer 13, another group voltage transformer 10 → microcomputer control protective unit 5 → electricity load management terminal 7 → complete automation electric energy metrical.
Embodiment 2
As shown in Figure 2 and Figure 3, the pre-power purchase metering cabinet of high pressure of the present utility model, on the basis of embodiment 1, also comprises the feeder pillar cable vault 9 that is arranged on cabinet the right, and inside cable joint 11 is very touch-type joint, and entirety adopts sealing device.
9 lower ends, cable vault are equipped with wire inlet/outlet hole, perforate and line cable match, tapping is corresponding with terminals, line goes out mode under entering under being, cable joint 11, to cable introducing place pitch-row from >=500mm, facilitates wiring, and power cable and cable trough wiring place are provided with the measure that prevents that toy from entering especially, stopped the possibility that the toys such as mouse enter CT and PT chamber 17, degree of protection reaches IP45 technical requirement.
Embodiment 3
Humidity sensor, heating plate, temperature sensor and suction top ventilating fan 22 are also housed, by temperature and humidity in microcomputer protecting device 5 automatic control rooms described in the pre-power purchase metering cabinet of high pressure described in the utility model in CT and PT chamber 17.In CT and PT chamber 17 relatively, alternate air gap is greater than 125mm, compound inslation distance is greater than 30mm, cabinet inner sleeve, support insulator adopt fire proofing, it is creepage, and ratio is greater than 2cm/kV.
In the various embodiments described above, current transformer 13 described in the pre-power purchase metering cabinet of high pressure described in the utility model preferably adopts 0.2S level split instrument transformer, and voltage transformer 10 preferably adopts 0.2 grade of split instrument transformer.
Be convenient to safeguard and change, reduce because instrument transformer damages the loss causing, and full cast-type combination transformer damage one of them, changes two, can cause unnecessary economic loss simultaneously.
In the various embodiments described above, described in the pre-power purchase metering cabinet of high pressure described in the utility model, measure circuit breaker 16 and adopt VS1 high-voltage handcart formula vacuum circuit-breaker.
This kind of circuit breaker have the life-span long, safeguard simple, easy to operate, pollution-free, without explosion hazard, noise is low, be adapted to frequent operation etc., it is the different primary cut-out of current best performance, it is isolated completely with CT and PT chamber 17, the very convenient safety of Maintenance and Repair is that common metering cabinet is incomparable.
In the various embodiments described above, in the pre-power purchase metering cabinet of high pressure described in the utility model, each chamber door installs imitative ABB silastic sealing strip additional.Dirt-proof measure is very good, the effectively cleannes of components and parts in guard box, and be welded with reliable grounding screw.
Between independent cell, separate with dividing plate separately, metering circuit breaker cart chamber 15 and CT and PT chamber 17 are added with lead sealing and " five is anti-" lock (rain-proof lock), so that power supply department lead sealing.
In the various embodiments described above, described in the pre-power purchase metering cabinet of high pressure described in the utility model, measuring instrument chamber 1, CT and PT chamber 17, cable vault's 9 inside doors are equipped with observation window, and position switch is equipped with in CT and PT chamber 17.
Tank material selects ￡ > 2.5mm corrosion resistant plate through punching, and bend, be welded, the tank surface green powder of outdoor environmental protection that sprays paint, casing has enough mechanical strengths, aesthetic in appearance, corrosion-resistant, has ensured that mounting related components is solid and reliable.
The utility model is not limited to above-mentioned preferred implementation, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or akin technical scheme, all belong to protection range of the present utility model.
Claims (6)
1. the pre-power purchase metering cabinet of high pressure, is characterized in that: comprise isolation arranges respectively measuring instrument chamber, CT and PT control room and metering circuit breaker cart chamber; Described measuring instrument chamber is arranged at the interior the right above of cabinet, is inside provided with paying electric energy meter, electricity load management terminal; Described CT and PT control room are disposed with metered voltage instrument transformer, earthing action bars, high-tension insulator, metering current mulual inductor, cable joint and fixed contact box after being arranged in cabinet from the bottom up; Described metering circuit breaker cart chamber is arranged at the interior upper right corner below of cabinet, is inside provided with metering circuit breaker; Also comprise the high voltage control chamber on the left side before being arranged in cabinet, indoor switch smart steering device and the microcomputer protecting device of being provided with of described high voltage control, entirety is sealed up setting.
2. the pre-power purchase metering cabinet of high pressure as claimed in claim 1, is characterized in that: described microcomputer protecting device is RGP601 type microcomputer protecting device.
3. the pre-power purchase metering cabinet of high pressure as claimed in claim 1, is characterized in that: the pre-power purchase metering cabinet of described high pressure also comprises the feeder pillar cable vault that is arranged at the right in cabinet, and inside cable joint is very touch-type joint, and entirety is sealed up setting.
4. the pre-power purchase metering cabinet of high pressure as claimed in claim 1, is characterized in that: in described CT and PT control room, be also provided with humidity sensor, heating plate, temperature sensor and suction top ventilating fan, by temperature and humidity in microcomputer protecting device automatic control room.
5. the pre-power purchase metering cabinet of high pressure as described in as arbitrary in claim 1 to 4, is characterized in that: described current transformer is the split type instrument transformer of 0.2S level, voltage transformer is 0.2 grade of split type instrument transformer.
6. the pre-power purchase metering cabinet of high pressure as described in as arbitrary in claim 1 to 4, is characterized in that: described measuring instrument chamber, CT and PT control room, cable vault's inside door are provided with observation window, CT and PT control room are provided with position switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070659.XU CN203722080U (en) | 2014-02-19 | 2014-02-19 | High-voltage pre-order electricity metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070659.XU CN203722080U (en) | 2014-02-19 | 2014-02-19 | High-voltage pre-order electricity metering cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722080U true CN203722080U (en) | 2014-07-16 |
Family
ID=51161206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070659.XU Expired - Fee Related CN203722080U (en) | 2014-02-19 | 2014-02-19 | High-voltage pre-order electricity metering cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470833A (en) * | 2016-01-20 | 2016-04-06 | 山东纵华智能电气有限公司 | Floor type prepayment apparatus |
| CN109861124A (en) * | 2019-02-21 | 2019-06-07 | 南京华脉科技股份有限公司 | A kind of pull-out type low-voltage metering mechanism and low-voltage metering cabinet |
-
2014
- 2014-02-19 CN CN201420070659.XU patent/CN203722080U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470833A (en) * | 2016-01-20 | 2016-04-06 | 山东纵华智能电气有限公司 | Floor type prepayment apparatus |
| CN105470833B (en) * | 2016-01-20 | 2017-07-28 | 山东纵华智能电气有限公司 | One kind landing prepaid devices |
| CN109861124A (en) * | 2019-02-21 | 2019-06-07 | 南京华脉科技股份有限公司 | A kind of pull-out type low-voltage metering mechanism and low-voltage metering cabinet |
| CN109861124B (en) * | 2019-02-21 | 2023-12-19 | 南京华脉科技股份有限公司 | Draw-out type low-voltage metering device and low-voltage metering cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150219 |
|
| EXPY | Termination of patent right or utility model |