CN205583170U - A device that is used for change that does not have a power failure of online kilowatt -hour meter - Google Patents
A device that is used for change that does not have a power failure of online kilowatt -hour meter Download PDFInfo
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- CN205583170U CN205583170U CN201620262552.4U CN201620262552U CN205583170U CN 205583170 U CN205583170 U CN 205583170U CN 201620262552 U CN201620262552 U CN 201620262552U CN 205583170 U CN205583170 U CN 205583170U
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Abstract
The utility model relates to a device that is used for change that does not have a power failure of online kilowatt -hour meter, including base and the public head of bayonet joint, be equipped with two at least and the female head of the public first matched with bayonet joint of bayonet joint on the base, still be equipped with the first interface that is used for interconnecting link on the base, the circuit is mutual -inductor secondary circuit or low pressure primary loop, first interface with set up the first bolt hole intercommunication on the base, first bolt hole is built -in to be had and is used for the fastening from the first bolt of first interface line attachment, be equipped with on the base be used for switching on circuit in female head of two at least bayonet joints and the first interface the metal in flakes. The utility model discloses beneficial effect adopts the modularized design, convenient to detach and equipment, and simple structure, the flexible operation is convenient, but according to actual need change configuration.
Description
Technical field
This utility model relates to a kind of device changing online kilowatt-hour meter in the case of primary circuit does not has a power failure, and is specifically related to the device of a kind of replacing that do not has a power failure for online kilowatt-hour meter.
Background technology
According to the applicant understood, the current loop of kilowatt-hour meter used by high voltage electric equipment is ordinarily connected on the secondary circuit of current transformer, according to country " electric power safety working regulation " (GB26860-2011) regulation: charged Current Transformer Secondary side does not allow open circuit, strictly prevent charged voltage transformer secondary side short circuit.Therefore, during actual replacing kilowatt-hour meter operation, generally require and the power-off of corresponding primary circuit, the such as Chinese patent of Patent No. 99239387.6 are disclosed safety leadings for kilowatt meter box, use the mode of cutting off the electricity supply to overhaul kilowatt-hour meter；The Chinese patent application of Application No. 201310214893.5 discloses terminal block for uninterruptible watt-hour meter works, can in limited space the secondary side of charged short circuit current transformer, use secondary current short circuit manner realize carry out kilowatt-hour meter exchange without cutting off the electricity supply.But there is following defect in both modes:
1. the power-off of corresponding primary circuit can affect the continuous electricity consumption of user, and production, life on user produce impact, too increase high-tension switch gear simultaneously and withdraw labour workload；
2., by the secondary side short circuit of current transformer, during carrying out kilowatt-hour meter replacing operation, owing to Current Transformer Secondary electric current, voltage transformer secondary voltage do not access kilowatt-hour meter, cause ammeter measuring to produce the biggest error.Often it is arranged in switch cubicle additionally, due to kilowatt-hour meter, circuit, terminal amount narrow space greatly in cabinet so that operating personnel is the most inconvenient when carrying out kilowatt-hour meter terminal and disconnecting, accidents such as getting an electric shock, short-circuit occurs the most unavoidably, the person, equipment are brought safely hidden danger.
In addition, for the kilowatt-hour meter of low-voltage customer, it mostly is the single-phase watt-hour meter of 220V and the three phase watt-hour meter of 380V, the most do not use transformer to make primary line directly enter table if do not had a power failure, owing to higher voltage makes replacing kilowatt-hour meter operation produce bigger danger, the problem that there will be ammeter measuring error the most equally according to bypass short circuit kilowatt-hour meter line.
Utility model content
The purpose of this utility model is: the problem existed for above-mentioned prior art, the device of a kind of replacing that do not has a power failure for online kilowatt-hour meter is proposed, can be on the premise of the kilowatt-hour meter circuit of continuous Kaiyuan, it is provided that new kilowatt-hour meter line interface, to solve to change problem produced by kilowatt-hour meter.
In order to reach object above, this utility model for online kilowatt-hour meter do not have a power failure change device, including base and connection-peg male, base is provided with the connection-peg female that at least two matches with connection-peg male, the first interface for connection line it is additionally provided with on base, described circuit is transformer secondary circuit or low pressure primary circuit, first interface connects with the first bolt hole being arranged on base, first bolt hole is built with for fastening the first bolt from first interface line attachment, base is provided with in turning at least two connection-peg female and first interface the metal of circuit in flakes.
In structure of the present utility model, base passes through metal in flakes by parallel, so on the premise of the kilowatt-hour meter circuit of continuous Kaiyuan at least two connection-peg female and first interface, it is provided that the line interface of new kilowatt-hour meter.Simultaneously, owing to parallel circuit terminal voltage is equal, power supply supply and the measuring requirement of kilowatt-hour meter would not be affected, and former line current circuit in parallel shunts, new and old kilowatt-hour meter while changing kilowatt-hour meter is made to continue to carry out gage work, the metering sum of new and old kilowatt-hour meter is side circuit variable, thus significantly reduces error in dipping.
Preferred version of the present utility model is:
Preferably, connection-peg male includes the insulated handle of tape insulation retaining ring, it is provided with cylinder in the upper surface of insulated handle, cylinder is provided with the second bolt hole, second bolt hole and the second orifice being arranged on insulated handle side, second interface is used for connecting kilowatt-hour meter circuit, and the second bolt hole is built with the second bolt accessing kilowatt-hour meter circuit for fastening from the second interface；Lower surface circumference at insulated handle is evenly equipped with one group of metallic elastic in flakes, and metallic elastic can contact with the metal inner surface of connection-peg female in flakes.
This utility model uses socket plug structure, female coordinates, with male, the connection-peg that partners, prior for kilowatt-hour meter wiring the second interface with connection-peg male can be connected, then connection-peg male is inserted in female, complete kilowatt-hour meter wiring in small space safely and fast.
Preferably, metallic elastic is provided with several draw-in groove public affairs grooves in flakes, and the male groove of draw-in groove matches with the draw-in groove mother's groove being arranged on connection-peg female metal inner surface, is used for preventing connection-peg male from coming off, it is ensured that equipment normal safe runs.
Preferably, the bottom built-in metal pedestal of insulated handle, the upper end of metal base connects the kilowatt-hour meter circuit accessed from the second interface, and lower end connects metallic elastic in flakes.
Preferably, base has the number slip for labelling terminal.
Preferably, the lower surface of base is shaped with for fixing universal draw-in groove.
Preferably, multiple bases can be applied in combination according to actual needs, and the two of such as single-phase watt-hour meter enter scene 2 four block combiner, ten block combiner etc. that three-phase four-wire system kilowatt-hour meter accesses through transformer.
This utility model has the beneficial effect that employing modularized design, it is simple to disassembly and assembly, simple in construction, flexible and convenient operation, can change configuration according to actual needs.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of base in this utility model.
Fig. 3 is the A-A ＇ profile of Fig. 2.
Fig. 4 is the structural representation of connection-peg male in this utility model.
Fig. 5 is the B-B ＇ profile of Fig. 4.
Fig. 6 is the three-view diagram of connection-peg male in this utility model.
Fig. 7 is the structural representation of this utility model embodiment two.
Fig. 8 is the structural representation of this utility model embodiment three.
In figure: No. 1 male of 1-1 connection-peg, No. 2 males of 1-2 connection-peg, 100 bases, 110 first interfaces, 120 first bolts, 130 connection-peg 1 females, 140 connection-peg 2 females, 150 universal draw-in grooves, 160 number slips, 170 metals in flakes, 180 draw-in groove mother's grooves, 200
Connection-peg male, 210 second interfaces, 220 second bolts, 230 metallic elastics in flakes, 240 draw-in groove public affairs grooves, 250
Insulated handle, 260 metal bases.
Detailed description of the invention
Embodiment one
The present embodiment for online kilowatt-hour meter do not have a power failure change device, its structure is as it is shown in figure 1, include base and No. 1 male 1-1 of connection-peg, No. 2 males 1-2 of connection-peg.
The structure of base is as shown in Figures 2 and 3, base 100 is provided with No. 1 female 130 of connection-peg and No. 2 females 140 of connection-peg matched with connection-peg male 200, two draw-in groove mother's grooves 180 it are formed respectively with on the inwall of No. 1 female 130 of connection-peg and No. 2 females 140 of connection-peg, the first interface 110 for connection line it is additionally provided with on base 100, circuit is transformer secondary circuit or low pressure primary circuit, first interface 110 connects with the first bolt hole being arranged on base 100, first bolt hole is built with for fastening the first bolt 120 from first interface 110 line attachment, base 100 is provided with for turning on No. 1 female 130 of connection-peg, the metal of circuit in flakes 170 in No. 2 females 140 of connection-peg and first interface 110.Additionally, have the number slip 160 for labelling terminal on base 100, the lower surface of base 100 is shaped with the universal draw-in groove 150 for firm banking 100.
The structure of connection-peg male 200 is as shown in Figures 4 to 6, insulated handle 250 including tape insulation retaining ring, it is provided with cylinder in the upper surface of insulated handle 250, cylinder is provided with the second bolt hole, second bolt hole connects with the second interface 210 being arranged on insulated handle 250 side, second interface 210 is used for connecting kilowatt-hour meter circuit, and the second bolt hole is built with the second bolt 220 accessing kilowatt-hour meter circuit for fastening from the second interface 210, lower surface circumference at insulated handle 250 is evenly equipped with 4 metallic elastics in flakes 230, metallic elastic 230 can be in close contact with the metal inner surface of connection-peg female in flakes.Metallic elastic is shaped with two draw-in groove public affairs grooves 240 on 230 in flakes, and the male groove of draw-in groove 240 matches with draw-in groove mother's groove 180 of connection-peg female, is used for preventing connection-peg male 200 from coming off, it is ensured that equipment normal safe runs.It addition, the bottom built-in metal pedestal 260 of insulated handle 250, the upper end of metal base 260 connects the kilowatt-hour meter circuit accessed from the second interface 210, and lower end connects metallic elastic in flakes 230.
Embodiment two
The present embodiment is for the do not have a power failure difference of device and the embodiment one changed of online kilowatt-hour meter, for normal domestic single-phase 220V kilowatt-hour meter, the structure of this device is as shown in Figure 7, use No. 1 base, No. 2 bases, No. 3 bases and four module bases of No. 4 bases are applied in combination, No. 1 base, No. 2 bases, No. 1 female of connection-peg and No. 2 females of connection-peg it are respectively equipped with on No. 3 bases and No. 4 bases, No. 1 female of the connection-peg of No. 1 base coordinates with corresponding No. 1 male 1-1 of connection-peg, No. 2 females of the connection-peg of No. 1 base coordinate with corresponding No. 2 males 1-2 of connection-peg；No. 1 female of the connection-peg of No. 2 bases coordinates with corresponding No. 1 male 2-1 of connection-peg, and No. 2 females of the connection-peg of No. 2 bases coordinate with corresponding No. 2 males 2-2 of connection-peg；No. 1 female of the connection-peg of No. 3 bases coordinates with corresponding No. 1 male 3-1 of connection-peg, and No. 2 females of the connection-peg of No. 3 bases coordinate with corresponding No. 2 males 3-2 of connection-peg；No. 1 female of the connection-peg of No. 4 bases coordinates with corresponding No. 1 male 4-1 of connection-peg, and No. 2 females of the connection-peg of No. 4 bases coordinate with corresponding No. 2 males 4-2 of connection-peg.House lead in live wire is accessed the first interface of No. 1 base, house lead in zero line accesses the first interface of No. 3 bases, load live wire connects the first interface of No. 2 bases, load zero line connects the first interface of No. 4 bases, former kilowatt-hour meter inlet wire live wire accesses the second interface of No. 1 male 1-1 of connection-peg, and No. 1 male 1-1 of connection-peg is inserted in No. 1 female of connection-peg of No. 1 base.Former kilowatt-hour meter inlet wire zero line accesses the second interface of No. 1 male 3-1 of connection-peg, and No. 1 male 3-1 of connection-peg is inserted in No. 1 female of connection-peg of No. 3 bases.Former kilowatt-hour meter outlet live wire accesses the second interface of No. 1 male 2-1 of connection-peg, and No. 1 male 2-1 of connection-peg is inserted in No. 1 female of connection-peg of No. 2 bases.Former kilowatt-hour meter outlet zero line accesses the second interface of No. 1 male 4-1 of connection-peg, and No. 1 male 4-1 of connection-peg is inserted in No. 1 female of connection-peg of No. 4 bases.Keeping former kilowatt-hour meter circuit motionless, the inlet wire live wire of new kilowatt-hour meter accesses the second interface of No. 2 males 1-2 of connection-peg, No. 2 males 1-2 of connection-peg are inserted in No. 2 females of connection-peg of No. 1 base.The inlet wire zero line of new kilowatt-hour meter accesses the second interface of No. 2 males 3-2 of connection-peg, and No. 2 males 3-2 of connection-peg are inserted in No. 2 females of connection-peg of No. 3 bases.The outlet live wire of new kilowatt-hour meter accesses the second interface of No. 2 males 2-2 of connection-peg, and No. 2 males 2-2 of connection-peg are inserted in No. 2 females of connection-peg of No. 2 bases.The outlet zero line of new kilowatt-hour meter accesses the second interface of No. 2 males 4-2 of connection-peg, and No. 2 males 4-2 of connection-peg are inserted in No. 2 females of connection-peg of No. 4 bases.After connecting the line according to the method described above, new kilowatt-hour meter and former kilowatt-hour meter are all measuring, and the metering sum of the two kilowatt-hour meter is actual metered value at that time.Pulling out No. 1 male 2-1 of connection-peg being connected to former kilowatt-hour meter outlet live wire, it is connected to No. 1 male 4-1 of connection-peg of former kilowatt-hour meter outlet zero line, after No. 1 male 1-1 of connection-peg being connected to former kilowatt-hour meter inlet wire live wire and No. 1 male 3-1 of connection-peg being connected to former kilowatt-hour meter inlet wire zero line, remove former kilowatt-hour meter, new kilowatt-hour meter is arranged on former kilowatt-hour meter position, it is achieved online kilowatt-hour meter does not have a power failure replacing operation.
Embodiment three
The present embodiment is for the do not have a power failure difference of device and the embodiment one changed of online kilowatt-hour meter, the kilowatt-hour meter accessed through transformer for industrial three-phase four-wire system, the structure of this device is as shown in Figure 8, use No. 1 base, No. 2 bases, No. 3 bases ... ten module bases of No. 10 bases are applied in combination, No. 1 base, No. 2 bases, No. 3 bases ... be respectively equipped with No. 1 female of connection-peg and No. 2 females of connection-peg on No. 10 bases, No. 1 female of connection-peg and corresponding No. 1 male 1-1 of connection-peg of number base coordinate, No. 2 females of the connection-peg of No. 1 base coordinate with corresponding No. 2 males 1-2 of connection-peg；No. 1 female of the connection-peg of No. 2 bases coordinates with corresponding No. 1 male 2-1 of connection-peg, and No. 2 females of the connection-peg of No. 2 bases coordinate with corresponding No. 2 males 2-2 of connection-peg；No. 1 female of the connection-peg of No. 3 bases coordinates with corresponding No. 1 male 3-1 of connection-peg, and No. 2 females of the connection-peg of No. 3 bases coordinate with corresponding No. 2 males 3-2 of connection-peg；... No. 1 female of the connection-peg of No. 10 bases coordinates with corresponding No. 1 male 10-1 of connection-peg, and No. 2 females of the connection-peg of No. 10 bases coordinate with corresponding No. 2 males 10-2 of connection-peg.nullThreephase current transformer is respectively connected to No. 1 and No. 3，No. 4 and No. 6，No. 7 with the first interface of No. 9 bases (in the right direction consistent)，Threephase potential transformer is respectively connected to No. 2 and No. 10，No. 5 and No. 10，No. 8 with the first interface of 10 bases (in the right direction consistent)，If 1 to No. 10 terminal of former kilowatt-hour meter keeps consistent with base number definition，And via line and No. 1 male 1-1 of connection-peg、2-1、3-1 ... 10-1 is connected to No. 1 base、No. 2 bases、No. 3 bases ... in No. 1 female of the connection-peg of No. 10 bases，Then keep former kilowatt-hour meter circuit motionless，By 1 to No. 10 terminal via line of new kilowatt-hour meter and No. 2 males 1-2 of connection-peg、2-2、3-2 ... 10-2 is connected to No. 1 base、No. 2 bases、No. 3 bases ... in No. 2 females of the connection-peg of No. 10 bases，Complete the wiring of new kilowatt-hour meter.Now, new kilowatt-hour meter and former kilowatt-hour meter all measure, and actual metered value is the metering sum of two tables.Pulling out connection-peg No. 1 male 1-1,2-1, the 3-1 being connected to former kilowatt-hour meter circuit ... after 10-1, remove former kilowatt-hour meter, new kilowatt-hour meter is arranged on the position of former kilowatt-hour meter, it is achieved online kilowatt-hour meter does not have a power failure replacing.
In addition to the implementation, this utility model can also have other embodiments.The technical scheme that all employing equivalents or equivalent transformation are formed, all falls within the protection domain of this utility model requirement.
Claims (7)
1. one kind for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: include base and connection-peg male, described base is provided with the connection-peg female that at least two matches with connection-peg male, the first interface for connection line it is additionally provided with on described base, described circuit is transformer secondary circuit or low pressure primary circuit, described first interface connects with the first bolt hole being arranged on base, described first bolt hole is built with for fastening the first bolt from first interface line attachment, described base is provided with in turning at least two connection-peg female and first interface the metal of circuit in flakes.
The most according to claim 1 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: described connection-peg male includes the insulated handle of tape insulation retaining ring, it is provided with cylinder in the upper surface of described insulated handle, described cylinder is provided with the second bolt hole, described second bolt hole and the second orifice being arranged on insulated handle side, described second interface connects kilowatt-hour meter circuit, and described second bolt hole is built with the second bolt accessing kilowatt-hour meter circuit for fastening from the second interface；Lower surface circumference at described insulated handle is evenly equipped with one group of metallic elastic in flakes, and described metallic elastic can contact with the metal inner surface of connection-peg female in flakes.
The most according to claim 2 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: described metallic elastic is provided with several draw-in groove public affairs grooves in flakes, the male groove of described draw-in groove matches with the draw-in groove mother's groove being arranged on connection-peg female metal inner surface.
The most according to claim 3 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: the bottom built-in metal pedestal of described insulated handle, the upper end of described metal base connects the kilowatt-hour meter circuit accessed from the second interface, and lower end connects metallic elastic in flakes.
The most according to claim 1 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: there is on described base the number slip for labelling terminal.
The most according to claim 1 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: the lower surface of described base is shaped with for fixing universal draw-in groove.
7. described in claim 1 for online kilowatt-hour meter do not have a power failure change device, it is characterized in that: multiple bases can be applied in combination according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262552.4U CN205583170U (en) | 2016-03-31 | 2016-03-31 | A device that is used for change that does not have a power failure of online kilowatt -hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262552.4U CN205583170U (en) | 2016-03-31 | 2016-03-31 | A device that is used for change that does not have a power failure of online kilowatt -hour meter |
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| CN205583170U true CN205583170U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763884A (en) * | 2019-11-26 | 2020-02-07 | 云南电网有限责任公司临沧供电局 | Method for rapidly plugging and unplugging on-load replacement metering device |
| CN113611519A (en) * | 2021-07-29 | 2021-11-05 | 国网重庆市电力公司营销服务中心 | Terminal box |
-
2016
- 2016-03-31 CN CN201620262552.4U patent/CN205583170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763884A (en) * | 2019-11-26 | 2020-02-07 | 云南电网有限责任公司临沧供电局 | Method for rapidly plugging and unplugging on-load replacement metering device |
| CN113611519A (en) * | 2021-07-29 | 2021-11-05 | 国网重庆市电力公司营销服务中心 | Terminal box |
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