CN108414805B - An uninterrupted power supply single-phase residential meter rotation and fault repair method - Google Patents
An uninterrupted power supply single-phase residential meter rotation and fault repair method Download PDFInfo
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- CN108414805B CN108414805B CN201810319207.3A CN201810319207A CN108414805B CN 108414805 B CN108414805 B CN 108414805B CN 201810319207 A CN201810319207 A CN 201810319207A CN 108414805 B CN108414805 B CN 108414805B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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Abstract
The invention relates to a method for alternating and repairing faults of an uninterruptible power supply single-phase resident ammeter, which belongs to the field of circuits and comprises the following steps: the main electric inlet is electrically connected with the external circuit, a first electric inlet, a third electric outlet and a first electric outlet form a first circulating circuit, and current flows in from the main electric inlet and flows out from the main electric outlet through the first circulating circuit; the second electric inlet, the conductive short circuit inner layer of the first short circuit part, the second electric outlet and the conductive short circuit inner layer of the second short circuit part form a second circulating circuit, and current flows in from the main electric inlet and flows out from the main electric outlet through the second circulating circuit; disconnecting the first pass circuit from the main electrical inlet or the main electrical outlet. The invention replaces the circuit of the original ammeter in the ammeter replacement process, thereby realizing single-phase ammeter replacement under the condition of no power failure and avoiding the problem of power failure of customers when replacing the ammeter in the prior art.
Description
[ field of technology ]
The invention relates to a method for alternating and repairing faults of an uninterruptible power supply single-phase resident ammeter.
[ background Art ]
According to the regulations of DLT448 electric energy metering device management regulations, the rotation period of the class VI electric energy meter in operation is 4-6 years. Because the VI-type electric energy meter does not have a joint junction box, the incoming line disconnecting link is required to be pulled open to disconnect the power supply when the meter is disassembled, or the secondary circuit is disconnected when the meter is disassembled, so that a user temporarily fails.
If the replacement of the single-phase table is to be realized under the condition of no power failure, the replacement of the single-phase table is taken as an indispensable step, and how to be inserted in a brand new replacement step is an indispensable research object.
[ invention ]
In order to solve the technical problems, the invention provides a method for switching and fault emergency repair of an uninterruptible power supply single-phase resident ammeter.
The technical scheme provided by the invention is as follows: the utility model provides a single-phase resident ammeter of uninterrupted power supply rotates and trouble rush-repair method, includes the short circuit piece, and the short circuit piece includes handle portion and columniform short circuit portion, and the short circuit portion includes the first short circuit portion and the second short circuit portion of mutual parallel arrangement, and the shape of handle portion is the arc, and the shape of first short circuit portion and second short circuit portion is columniform, and first short circuit portion and second short circuit portion are fixed respectively and are set up in the both ends of handle portion; the handle part comprises a conductive handle inner layer and an insulating handle outer layer fixed on the surface of the conductive handle inner layer, the first short circuit part and the second short circuit part both comprise a conductive short circuit inner layer and an insulating short circuit outer layer sleeved on the surface of the conductive short circuit inner layer, the conductive handle inner layer and the conductive short circuit inner layer are integrally formed, the insulating short circuit outer layer is rotatably arranged on the conductive short circuit inner layer, and sliding teeth which are used for being matched with tooth grooves are fixedly arranged at the bottom of the insulating short circuit outer layer; the shape of handle portion is semicircle arc, no. one short circuit portion and No. two short circuit portions all cut in the tip of grab handle portion, the top of electrically conductive short circuit inlayer is provided with annular fluting, insulating short circuit outer top be provided with fluting shape assorted rotor, rotor cup joints in the fluting, and rotor and insulating short circuit outer integrated into one piece, fluting, rotor and short circuit portion coaxial setting, the outer circuit, device body and single-phase table set gradually, set up No. three electric inlets and No. three electric outlets on the single-phase table, then implement the following step in proper order:
step (1): the main electric inlet is electrically connected with the external circuit, the first electric inlet is electrically connected with the third electric inlet, the third electric outlet is electrically connected with the first electric outlet, the first electric outlet is electrically connected with the main electric outlet, the first electric inlet, the third electric outlet and the first electric outlet form a first circulating circuit, and current flows in from the main electric inlet and flows out from the main electric outlet through the first circulating circuit;
step (2): the method comprises the steps that a conductive short circuit inner layer of a first short circuit part is electrically connected with a second electric inlet, the conductive short circuit inner layer of the second short circuit part is electrically connected with a second electric outlet, a second electric inlet, the conductive short circuit inner layer of the first short circuit part, the second electric outlet and the conductive short circuit inner layer of the second short circuit part form a second circulating circuit, and current flows in from the total electric inlet, flows out from the total electric outlet through the second circulating circuit;
step (3): disconnecting the first pass circuit from the main electrical inlet or the main electrical outlet.
Preferably, in the step (3), the electrical connection between the first electrical inlet and the third electrical inlet is disconnected, or the electrical connection between the third electrical outlet and the first electrical outlet is disconnected. The safety risk is reduced by adopting an alternative circuit breaking mode.
Preferably, a single-pole double-throw switch is arranged between the main electric inlet and the first electric inlet, the fixed end of the single-pole double-throw switch is connected with the main electric inlet, and the movable end of the single-pole double-throw switch is connected with the first electric inlet or the second electric inlet (A5); in the step (1), the movable end of the single-pole double-throw switch is shifted, so that the total electric inlet is electrically connected with the first electric inlet; in the step (2), the movable end of the single-pole double-throw switch is shifted, so that the total electric inlet and the second electric inlet are electrically connected. The single-pole double-throw switch enables the first circulating circuit and the second circulating circuit not to be powered off at the same time, so that a user cannot be powered off in the replacement process.
Preferably, in the step (2), the sliding tooth is inserted into the tooth slot, and then the insulating short circuit outer layer is rotated, so that the sliding tooth slides in the tooth slot until the sliding tooth is completely attached to the tooth slot, at this time, the conductive short circuit inner layer of the first short circuit part is completely inserted into the second electric inlet, and the conductive short circuit inner layer of the second short circuit part is completely inserted into the second electric outlet. When the structure enables the conductive short circuit inner layer to be in poor contact with the second electric inlet or to be installed in dislocation, the insulating short circuit outer layer is rotated, and the sliding of the sliding teeth in the tooth grooves can be used for fine adjustment of the position between the conductive short circuit inner layer and the second electric inlet.
Compared with the prior art, the invention simultaneously provides the uninterrupted power supply single-phase resident ammeter rotation device with a special structure and the short connector, and the device and the short connector are organically combined together. The primary circulation circuit provides the original power supply circuit of ammeter, and the secondary circulation circuit provides the standby circuit at ammeter change in-process, through the short circuit spare, circulates primary circulation circuit and secondary circulation circuit simultaneously at ammeter change in-process, and circuit break to primary circulation circuit after the ammeter is changed and is accomplished, has realized replacing the circuit of former ammeter at ammeter change in-process to single-phase table replacement under the condition of not cutting off power supply has been realized.
[ description of the drawings ]
Fig. 1 is a schematic front view of an installation state according to an embodiment of the present invention.
Fig. 2 is an equivalent circuit diagram of fig. 1.
Fig. 3 is a schematic front view of another installation state according to the embodiment of the present invention.
Fig. 4 is an equivalent circuit diagram of fig. 3.
Fig. 5 is a schematic front view of a clip according to an embodiment of the present invention.
Fig. 6 is a schematic bottom view of the fastening component according to the embodiment of the invention.
Fig. 7 is a schematic diagram of a front view of a shorting member according to an embodiment of the present invention.
Fig. 8 is a schematic view of the cross-sectional structure of A-A in fig. 7.
Fig. 9 is a schematic diagram of a front view of an inner layer of a conductive handle and an inner layer of a conductive short circuit according to an embodiment of the present invention.
[ detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the following description, the terms such as "inner", "outer", "upper", "lower", "left", "right", etc. are used to indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the embodiments and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
See fig. 1-9.
The embodiment provides a single-phase resident ammeter of uninterrupted power supply rotates and trouble rush-repair device, including device body A1, offer No. one electric entry A2, no. one electric exit A3, no. two electric entry A5, no. two electric exit A6, total electric entry A7 and total electric exit A8 on the device body A1. The first electric inlet A2 and the first electric outlet A3 are both used for being connected with the single-phase meter A4, the second electric inlet A5 and the second electric outlet A6 are both used for being connected with a short circuit piece, and the total electric inlet A7 and the total electric outlet 8 are used for being connected with an external circuit.
The device body A1 is internally and fixedly provided with a test circuit, and the test circuit comprises an input circuit and an output circuit.
The total electric inlet A7 is the electric inlet of the input circuit, and the first electric inlet A2 and the second electric inlet A5 are the electric outlet of the input circuit. The first electric inlet A2 or the second electric inlet A5 is electrically connected with the total electric inlet A7. After the external circuit current flows from the total electric inlet A7, there is a possibility that the external circuit current flows to the first electric inlet A2 and flows to the second electric inlet A5.
The first electric outlet A3 and the second electric outlet A6 are both electric input ends of the output circuit, and the total electric outlet A8 is an electric output end of the output circuit. The first electric outlet A3 and the second electric outlet A6 are electrically connected with the total electric outlet A8. In the single-phase resident ammeter rotation and fault rush-repair device with uninterrupted power supply, which is not used, a circuit is broken between the first electric inlet A2 and the first electric outlet A3, and a circuit is broken between the second electric inlet A5 and the second electric outlet A6. Under the use state of the uninterruptible power supply single-phase resident ammeter rotation and fault rush-repair device, a first electric inlet A2 and a first electric outlet A3 are communicated, current flows into the first electric outlet A3 from the first electric inlet A2 and then flows into a total electric outlet A8, or a second electric inlet A5 and a second electric outlet A6 are communicated, and current flows into the second electric outlet A6 from the second electric inlet A5 and then flows into the total electric outlet A8.
Preferably, the input circuit comprises a single-pole double-throw switch A16, the total electric inlet A7 is connected with the stationary end of the single-pole double-throw switch A16, and the movable end of the single-pole double-throw switch A16 is electrically connected with the first electric inlet A2 or the second electric inlet A5. The single pole double throw switch a16 controls the current of the total electrical inlet A7 to flow to either the first electrical inlet A2 or the second electrical inlet A5, which is the alternative flow, avoiding the simultaneous flow of current from the total electrical inlet A7 to both the first electrical inlet A2 and the second electrical inlet A5. In the use process of the uninterrupted power supply single-phase resident ammeter rotation and fault first-aid repair device, current only flows in one of the single-phase ammeter A4 and the short-circuit piece.
Preferably, a protection circuit for connecting the movable end of the single-pole double-throw switch A16 and the second electric inlet A5 in series is arranged between the single-pole double-throw switch A16 and the second electric inlet A5. The protection circuit comprises a thermistor, a fixed resistor, a sliding rheostat and an ammeter which are sequentially connected in series. The constant value resistor avoids overlarge current, the current is measured by means of the ammeter, the current is controlled to be maintained at a certain reasonable value through the thermistor and the sliding rheostat, and the current is maintained at a certain size without additionally occupying excessive power, so that users are influenced.
Furthermore, the switch is never included in the output circuit. Because the switch is misoperation or fails to look over in advance, the uninterrupted power supply single-phase resident ammeter is rotated and the fault rush-repair device is disconnected. The single pole double throw switch A16 in the input circuit always keeps the input circuit in a connected state. If the single-pole double-throw switch A16 is arranged in the output circuit, the problem of mismatching with the single-pole double-throw switch A16 in the input circuit can be generated, so that even if the single-phase meter A4 or the short circuit piece is connected with the device body A1, the user is powered off due to mismatching of the single-pole double-throw switch A16 in the input circuit and the single-pole double-throw switch A16 in the output circuit.
See fig. 1, 3. And the second electric inlet A5 and the second electric outlet A6 are respectively provided with a clamping piece A11 for being clamped with the short circuit piece.
See fig. 5-6.
The clamping piece A11 comprises a cylindrical insulating outer ring A12 and a conductive inner ring A13 arranged on the inner side of the insulating outer ring A12, and the outer wall of the insulating outer ring A12 is attached to the outer wall of the conductive inner ring A13. The insulating outer ring A12 plays a role of fixing the conductive inner ring A13, so that the connection between the insulating outer ring A and a short circuit piece is stable, poor contact is prevented, and the insulating outer ring A12 causes complete disconnection when the single-phase meter A4 is replaced, so that the device is damaged and a user is powered off.
The top of insulating outer loop A12 is provided with latch A14, and insulating outer loop A12, latch A14 and device body A1 integrated into one piece set up. The insulation outer ring A12 and the latch A14 are smaller in volume, and the non-integrated fixing mode is extremely easy to cause abrasion and separation in the use process, so that the connection capability and the insulation effect of the insulation outer ring A12 are greatly affected. Meanwhile, due to the falling-off of the latch A14, the contact effect of the short circuit piece is poor, and the contact resistance is further enhanced. Furthermore, tooth grooves a15 for engaging the short-circuit pieces are formed between the adjacent teeth a14, and the tooth grooves a15 are used for connecting the short-circuit pieces from the outside, the fitting manner of which will be described later in this embodiment.
The embodiment also provides a short connector which is used for being inserted into the uninterrupted power supply single-phase resident ammeter rotation and fault first-aid repair device.
See fig. 7-9.
The short-circuit piece includes handle portion B1 and columniform short-circuit portion, and short-circuit portion includes a short-circuit portion B2 and No. two short-circuit portion B3 that are parallel to each other, and handle portion B1's shape is the arc, and a short-circuit portion B2 and No. two short-circuit portion B3's shape is columniform, and a short-circuit portion B2 and No. two short-circuit portion B3 are fixed respectively and are set up in handle portion B1's both ends. The handle portion B1 is suitable for being gripped on the one hand, and convenient manual work drives No. one short circuit portion B2 and No. two short circuit portion B3 to insert No. two electric inlets A5 and No. two electric outlets A6, and on the other hand makes No. one short circuit portion B2 and No. two short circuit portion B3 pull open certain interval, prevents the short circuit.
The handle part B1 comprises a conductive handle inner layer B5 and an insulating handle outer layer B6 fixed on the surface of the conductive handle inner layer B5. The first short circuit part B2 comprises a conductive short circuit inner layer B7 and an insulating short circuit outer layer B8 fixed on the surface of the conductive short circuit inner layer B7. The second short circuit part B3 also comprises a conductive short circuit inner layer B7 and an insulating short circuit outer layer B8 fixed on the surface of the conductive short circuit inner layer B7.
The conductive grab handle inner layer B5, the conductive short circuit inner layer B7 in the first short circuit part B2 and the conductive short circuit inner layer B7 in the second short circuit part B3 are integrally formed.
The insulating short circuit outer layer B8 is rotatably arranged on the insulating grab handle outer layer B6. Wherein, the outer B8 rotation type of insulating short circuit of No. I short circuit portion B2 is installed in the outer B6's of insulating grab handle left end, and the outer B8 rotation type of insulating short circuit of No. two short circuit portions B3 is installed in the outer B6's of insulating grab handle right-hand member.
The sliding teeth B4 matched with the tooth grooves A15 are fixedly arranged at the bottom of the insulating short circuit outer layer B8 of the first short circuit part B2 and the bottom of the insulating short circuit outer layer B8 of the second short circuit part B3. When the sliding tooth B4 is located in the tooth slot a15, the sliding tooth B4 is completely engaged with the tooth slot a15, and meanwhile, the sliding tooth B4 can slide in the tooth slot a15 along with the rotation of the first short circuit part B2 and the second short circuit part B3.
The sliding tooth B4 is matched with the tooth socket A15, a buffering effect is achieved when the first short circuit part B2 and the second short circuit part B3 are inserted into the second electric inlet A5 and the second electric outlet A6, and in the process that the first short circuit part B2 and the second short circuit part B3 are pulled out of the second electric inlet A5 and the second electric outlet A6, the insulating short circuit outer layer B8 is rotated to enable the sliding tooth B4 to interact with the tooth A14, the first short circuit part B2 and the second short circuit part B3 are enabled to displace firstly along the axial direction of the sliding tooth A14, friction force between the first short circuit part B2 and the second short circuit part B3 and the inner walls of the second electric inlet A5 and the second electric outlet A6 is reduced, and pulling out of a short circuit part is facilitated.
When it is desired to install sliding tooth B4 into tooth slot a15 or remove sliding tooth B4 from tooth slot a15, this may be accomplished by rotating either shorting section No. B2 or shorting section No. B3. The novel electric connector is particularly suitable for the condition that the first short-circuit part B2 or the second short-circuit part B3 is abnormally arranged in the second electric inlet A5 or the second electric outlet A6, and the situation that the handle part B1 is pulled out barely to cause the damage of the first short-circuit part B2 or the second short-circuit part B3 is avoided.
Preferably, the shape of the grip portion B1 is semi-circular arc, in particular the shape of the conductive grip inner layer B5 is semi-circular arc. The conductive short circuit inner layer B7 of the first short circuit portion B2 and the conductive short circuit inner layer B7 of the second short circuit portion B3 are both cut at the end portion of the grip portion B1 (the end portion of the conductive grip inner layer B5). According to the method, on one hand, the contact resistance between the conductive grab handle inner layer B5 and the conductive short circuit inner layer B7 is minimized, overheating is avoided, and on the other hand, the contact resistance between the conductive short circuit inner layer B7 and the second electric inlet A5 or the second electric outlet A6 is minimized, so that the problem of poor contact during long-time use is solved, and the possibility of power failure is reduced.
In addition, the top of electrically conductive short circuit inlayer B7 is provided with annular fluting B10, and insulating short circuit outer layer B8's top is provided with and flutes B10 shape assorted rotor B9, and rotor B9 cup joints in fluting B10, and rotor B9 and insulating short circuit outer layer B8 integrated into one piece, fluting B10, rotor B9 and the coaxial setting of short circuit portion. The insulating short circuit outer layer B8 can rotate around the conductive short circuit inner layer B7, and meanwhile, the insulating short circuit outer layer B8 can not translate relative to the conductive short circuit inner layer B7 through the grooves B10 and the rotating piece B9.
The uninterrupted power supply single-phase resident ammeter rotation and fault rush-repair method (short-circuit piece using method) comprises the following steps:
the external circuit, the device body A1 and the single-phase meter A4 are sequentially arranged, a third electric inlet A9 and a third electric outlet A10 are formed in the single-phase meter A4, and then the following steps are sequentially carried out:
step (1): the total electric inlet A7 is electrically connected with an external circuit, the first electric inlet A2 is electrically connected with the third electric inlet A9, the third electric outlet A10 is electrically connected with the first electric outlet A3, the first electric outlet A3 is electrically connected with the total electric outlet A8, the first electric inlet A2, the third electric inlet A9, the third electric outlet A10 and the first electric outlet A3 form a first circulating circuit, and current flows in from the total electric inlet A7 and flows out from the total electric outlet A8 through the first circulating circuit; at this time, no short-circuit piece is installed; if the single-pole double-throw switch A16 is arranged in the input circuit, the movable end of the single-pole double-throw switch A16 is driven to the first electric inlet A2, so that the total electric inlet A7 and the first electric inlet A2 are electrified;
step (2): installing a short circuit piece, electrically connecting a conductive short circuit inner layer B7 of a first short circuit part B2 with a second electric inlet A5, electrically connecting a conductive short circuit inner layer B7 of a second short circuit part B3 with a second electric outlet A6, forming a second circulating circuit by the second electric inlet A5, the conductive short circuit inner layer B7 of the first short circuit part B2, the second electric outlet A6 and the conductive short circuit inner layer B7 of the second short circuit part B3, and enabling current to flow in from the total electric inlet A7 and flow out from the total electric outlet A8 through the second circulating circuit; if the single-pole double-throw switch A16 is not arranged in the input circuit, the first circulating circuit and the second circulating circuit are electrified in the step; if the single-pole double-throw switch A16 is arranged in the input circuit, the moving end of the single-pole double-throw switch A16 in the step is driven to the second electric inlet A5, so that the total electric inlet A7 is electrically connected with the second electric inlet A5, and the second circulating circuit is electrified;
step (3): and the electric connection of the first electric inlet A2 and the third electric inlet A9 is disconnected, and the electric connection of the third electric outlet A10 and the first electric outlet A3 is disconnected, so that the first circulation circuit and the total electric inlet A7 are disconnected, and then the single-phase meter A4 is replaced.
In particular, the method for installing the short circuit element in the step (2) of this embodiment includes the following steps: the sliding tooth B4 is inserted into the tooth slot A15, then the insulating short circuit outer layer B8 is rotated, so that the sliding tooth B4 slides in the tooth slot A15 until the sliding tooth B4 is completely attached to the tooth slot A15, at the moment, the conductive short circuit inner layer B7 of the first short circuit part B2 is completely inserted into the second electric inlet A5, and the conductive short circuit inner layer B7 of the second short circuit part B3 is completely inserted into the second electric outlet A6.
According to the method, under the condition that a user does not power off, replacement of the single-phase meter A4 is achieved, after the single-phase meter A4 is replaced, the first electric inlet A2 and the third electric inlet A9 are electrically connected again, the third electric outlet A10 and the first electric outlet A3 are electrically connected, the movable end of the single-pole double-throw switch A16 is connected to enable the total electric inlet A7 and the first electric inlet A2 to be electrified, then the short-circuit part is pulled out or rotated out, the short-circuit part is removed, and the replaced single-phase meter A4 can be put into operation again.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319207.3A CN108414805B (en) | 2018-04-11 | 2018-04-11 | An uninterrupted power supply single-phase residential meter rotation and fault repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319207.3A CN108414805B (en) | 2018-04-11 | 2018-04-11 | An uninterrupted power supply single-phase residential meter rotation and fault repair method |
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| CN108414805A CN108414805A (en) | 2018-08-17 |
| CN108414805B true CN108414805B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR101030727B1 (en) * | 2009-10-28 | 2011-04-26 | 조규행 | Uninterruptible Terminal Block for Electric Meter Replacement |
| KR101168060B1 (en) * | 2011-02-14 | 2012-07-24 | 한국전력공사 | The equipment without interruptable power supply during replacing a single-phase current watt-hour meter |
| CN203707525U (en) * | 2014-03-10 | 2014-07-09 | 国家电网公司 | Short circuit apparatus for replacement of electric energy meter without power failure |
| CN104090138A (en) * | 2014-07-16 | 2014-10-08 | 国家电网公司 | Binding post enabling single-phase watt-hour meter to be replaced without power cut |
| CN205374550U (en) * | 2015-12-23 | 2016-07-06 | 华威博奥电力设备有限公司 | Can realize device that plug electric energy meter does not cut off power supply |
| CN205911585U (en) * | 2016-08-09 | 2017-01-25 | 湖北盛佳电器设备有限公司 | Modularization short circuit spare |
| CN205982352U (en) * | 2016-07-18 | 2017-02-22 | 浙江天顺玻璃钢有限公司 | Do not cut off power supply and realize device of plug -in electric energy meter change |
| CN207937498U (en) * | 2018-04-11 | 2018-10-02 | 国网浙江省电力公司绍兴供电公司 | A kind of single-phase resident's ammeter rotation of uninterrupted power supply and breakdown repair device |
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- 2018-04-11 CN CN201810319207.3A patent/CN108414805B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0525368U (en) * | 1991-09-13 | 1993-04-02 | 中部精機株式会社 | Instrument replacement uninterruptible construction adapter |
| KR200217828Y1 (en) * | 2000-10-10 | 2001-03-15 | 전명수 | Nobreak power supply changable Watt-meter |
| KR20110019039A (en) * | 2009-08-19 | 2011-02-25 | 민병희 | Uninterruptible Power Meter Replacement |
| KR101030727B1 (en) * | 2009-10-28 | 2011-04-26 | 조규행 | Uninterruptible Terminal Block for Electric Meter Replacement |
| KR101168060B1 (en) * | 2011-02-14 | 2012-07-24 | 한국전력공사 | The equipment without interruptable power supply during replacing a single-phase current watt-hour meter |
| CN203707525U (en) * | 2014-03-10 | 2014-07-09 | 国家电网公司 | Short circuit apparatus for replacement of electric energy meter without power failure |
| CN104090138A (en) * | 2014-07-16 | 2014-10-08 | 国家电网公司 | Binding post enabling single-phase watt-hour meter to be replaced without power cut |
| CN205374550U (en) * | 2015-12-23 | 2016-07-06 | 华威博奥电力设备有限公司 | Can realize device that plug electric energy meter does not cut off power supply |
| CN205982352U (en) * | 2016-07-18 | 2017-02-22 | 浙江天顺玻璃钢有限公司 | Do not cut off power supply and realize device of plug -in electric energy meter change |
| CN205911585U (en) * | 2016-08-09 | 2017-01-25 | 湖北盛佳电器设备有限公司 | Modularization short circuit spare |
| CN207937498U (en) * | 2018-04-11 | 2018-10-02 | 国网浙江省电力公司绍兴供电公司 | A kind of single-phase resident's ammeter rotation of uninterrupted power supply and breakdown repair device |
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| Publication number | Publication date |
|---|---|
| CN108414805A (en) | 2018-08-17 |
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