CN110954851A - Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter - Google Patents

Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter Download PDF

Info

Publication number
CN110954851A
CN110954851A CN201911282490.8A CN201911282490A CN110954851A CN 110954851 A CN110954851 A CN 110954851A CN 201911282490 A CN201911282490 A CN 201911282490A CN 110954851 A CN110954851 A CN 110954851A
Authority
CN
China
Prior art keywords
bracket
electric energy
hole
energy meter
movable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911282490.8A
Other languages
Chinese (zh)
Other versions
CN110954851B (en
Inventor
尹青青
廖烽然
李岩
任常宁
宋振伟
王杰伟
赵晓燕
王钰涵
王东升
由佳鑫
其他发明人请求不公开姓名
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Hon Hai Precision Industry Co Ltd
Original Assignee
State Grid Corp of China SGCC
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Hon Hai Precision Industry Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201911282490.8A priority Critical patent/CN110954851B/en
Publication of CN110954851A publication Critical patent/CN110954851A/en
Application granted granted Critical
Publication of CN110954851B publication Critical patent/CN110954851B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instructional Devices (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

The invention belongs to the field of quick checking instruments, in particular to a quick checking instrument for preventing the wire of an electric energy meter from being reversely connected, aiming at the problem that the electricity utilization of residents or enterprises is influenced and the use requirement cannot be met due to the fact that the electric workers often have reverse connection due to large workload when power is connected, the invention provides a scheme that the quick checking instrument comprises a checking instrument body, wherein the checking instrument body is of a hollow structure, a mounting seat is arranged at the bottom end of the inner wall of the checking instrument body, a rotating motor is arranged on the mounting seat, the rotating motor is connected with a driven shaft through an output shaft, and a movable through hole is formed in the checking instrument body. And the rotation direction of the indicating ball cannot be discriminated.

Description

Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter
Technical Field
The invention relates to the technical field of quick checking instruments, in particular to a quick checking instrument for reversely connecting an inlet wire and an outlet wire of an electric energy meter.
Background
An electric energy meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, kilowatt-hour meter, and refers to instruments for measuring various electric quantities. When using a power meter, it is noted that the power meter can be directly connected to the circuit for measurement at low voltage (not more than 500 volts) and low current (tens of amperes). Under the condition of high voltage or large current, the electric energy meter cannot be directly connected with a circuit and needs to be matched with a voltage transformer or a current transformer for use. The electric energy meter that uses now generally is mostly electronic type, and the condition that can't normally use electricity appears after electronic type's electric energy meter business turn over line connects conversely, and the electric power workman often can appear connecing the circumstances of turning over owing to the work load is great in the time of connecing the electricity, influences resident or enterprise's power consumption, has not satisfied the demand of using.
Disclosure of Invention
The invention aims to solve the problems that electricity consumption of residents or enterprises is affected and the use requirement cannot be met due to the fact that electric workers often have reverse connection due to large workload during electricity connection, and provides a quick checking instrument for the reverse connection of an inlet wire and an outlet wire of an electric energy meter.
In order to achieve the purpose, the invention adopts the following technical scheme:
the electric energy meter inlet and outlet wire reverse connection rapid checking instrument comprises a checking instrument body, wherein the checking instrument body is of a hollow structure, a mounting seat is arranged at the bottom end of the inner wall of the checking instrument body, a rotating motor is arranged on the mounting seat, the rotating motor is connected with a driven shaft through an output shaft, a movable through hole is formed in the checking instrument body, the driven shaft extends out of the checking instrument body through the movable through hole, the driven shaft is movably arranged in the movable through hole, a connecting rod is connected to one end of the driven shaft, which extends out of the checking instrument body, an indicating ball is connected to one end, away from the driven shaft, of the connecting rod, a rectifier is arranged at the top end of the inner wall of the checking instrument body.
Preferably, a ceramic cylinder is sleeved on the mounting support, a conductive coil is wound on the ceramic cylinder, a conductive piece is sleeved on the conductive coil, a first through hole is formed in the conductive piece, the conductive piece is sleeved on the conductive coil through the first through hole, a movable rod is arranged at the top end of the conductive piece and made of an insulating material, a movable channel is formed in the checking instrument body, the movable rod extends out of the checking instrument body through the movable channel, and the movable rod is movably arranged in the movable channel.
Preferably, a first support is arranged above the mounting support, the first support is arranged on the inner wall of the checking instrument body, the first support is of a hollow structure, a second support is movably arranged in the first support and extends out of the first support, one end of the second support, which extends out of the first support, is arranged on the movable rod, sliding grooves are symmetrically formed in two sides of the inner wall of the first support, sliding blocks are symmetrically arranged on two sides of the second support, and the sliding blocks are movably arranged in the sliding grooves.
Preferably, a second through hole is formed in one side, close to the movable rod, of the first support, the second support extends out of the first support through the second through hole, and the second support is movably arranged in the second through hole.
Preferably, a first wire clamping pliers and a second wire clamping pliers are arranged above the device body, and the first wire clamping pliers and the second wire clamping pliers are respectively connected with a rectifier through wires in a telecommunication mode.
Preferably, the two sides of the top end of the ceramic cylinder are symmetrically provided with positioning blocks, and the conductive coil is wound between the positioning blocks.
Preferably, the positive pole of the rectifier is connected with the conductive coil through a lead, the conductive piece is connected with the positive pole of the rotating electrical machine through a lead, and the negative pole of the rotating electrical machine is connected with the negative pole of the rectifier through a lead.
According to the electric energy meter wire inlet and outlet reverse connection rapid checking instrument, the rotating motor and the rectifier are additionally arranged, the rotating motor can be used for driving the indicating ball to rotate, so that the current reversal can be judged according to the rotating direction of the indicating ball, meanwhile, the movable rod is used for driving the conductive piece to move, the conductive piece moves on the conductive coil, the number of turns of the conductive coil in the access circuit is changed, the current size contacting with the rotating motor is changed, the rotating speed of the rotating motor is changed by changing the current size, and therefore the phenomenon that the rotating direction of the indicating ball cannot be judged due to the fact that the rotating motor rotates too fast is avoided;
the electric energy meter has a reasonable structure, the rotating motor is utilized to drive the indicating ball to rotate, whether the incoming and outgoing lines of the electric energy meter are reversely connected or not can be quickly judged according to the rotating direction of the indicating ball, and meanwhile, the conductive piece is utilized to move on the conductive coil, so that the problem that the rotating direction of the indicating ball cannot be judged due to the fact that the rotating motor rotates too fast due to convenience in use can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of an electric energy meter inlet and outlet wire reverse connection rapid checking instrument provided by the invention;
fig. 2 is a schematic diagram of an internal structure of the electric energy meter reverse connection quick checking instrument;
fig. 3 is a schematic view of a first bracket structure of the electric energy meter reverse connection quick checking instrument.
In the figure: the checking instrument comprises an examining instrument body 1, a mounting seat 2, a rotating motor 3, a driven shaft 4, a movable through hole 5, a connecting rod 6, an indicating ball 7, a rectifier 8, a mounting bracket 9, a porcelain cylinder 10, a conductive coil 11, a conductive piece 12, a first through hole 13, a movable rod 14, a movable channel 15, a first bracket 16, a second bracket 17, a sliding groove 18, a sliding block 19, a first wire clamp 20 and a second wire clamp 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, anti-quick inspection appearance of electric energy meter business turn over line connection, including examining appearance body 1, it is hollow structure to examine appearance body 1, the inner wall bottom of examining appearance body 1 is equipped with mount pad 2, be equipped with rotating electrical machines 3 on mount pad 2, rotating electrical machines 3 has driven shaft 4 through output shaft, and examine and seted up movable through-hole 5 on the appearance body 1, driven shaft 4 extends to outside examining appearance body 1 through movable through-hole 5, and driven shaft 4 activity is located in movable through-hole 5, driven shaft 4 extends to examining appearance body 1 outer one end and is connected with connecting rod 6, and the one end that driven shaft 4 was kept away from to connecting rod 6 is connected with instruction ball 7, the inner wall top of examining appearance body 1 is equipped with rectifier 8, and the inner wall one side of examining appearance body 1 is.
In the invention, a ceramic cylinder 10 is sleeved on a mounting bracket 9, a conductive coil 11 is wound on the ceramic cylinder 10, a conductive piece 12 is sleeved on the conductive coil 11, a first through hole 13 is formed in the conductive piece 12, the conductive piece 12 is sleeved on the conductive coil 11 through the first through hole 13, a movable rod 14 is arranged at the top end of the conductive piece 12, the movable rod 14 is made of an insulating material, a movable channel 15 is formed in an inspection instrument body 1, the movable rod 14 extends out of the inspection instrument body 1 through the movable channel 15, and the movable rod 14 is movably arranged in the movable channel 15.
According to the invention, a first support 16 is arranged above a mounting support 9, the first support 16 is arranged on the inner wall of an inspection instrument body 1, the first support 16 is of a hollow structure, a second support 17 is movably arranged in the first support 16, the second support 17 extends out of the first support 16, one end of the second support 17 extending out of the first support 16 is arranged on a movable rod 14, sliding grooves 18 are symmetrically formed in two sides of the inner wall of the first support 16, sliding blocks 19 are symmetrically arranged on two sides of the second support 17, and the sliding blocks 19 are movably arranged in the sliding grooves 18.
In the invention, a second through hole is formed in one side, close to the movable rod 14, of the first support 16, the second support 17 extends out of the first support 16 through the second through hole, the second support 17 is movably arranged in the second through hole, a first wire clamping pliers 20 and a second wire clamping pliers 21 are arranged above the device body 1, the first wire clamping pliers 20 and the second wire clamping pliers 21 are respectively and electrically connected with a rectifier 8 through leads, positioning blocks are symmetrically arranged on two sides of the top end of the porcelain cylinder 10, the conductive coil 11 is wound between the positioning blocks, the positive electrode of the rectifier 8 is connected with the conductive coil 11 through a lead, the conductive piece 12 is connected with the positive electrode of the rotating motor 3 through a lead, and the negative electrode of the rotating motor 3 is connected with the negative electrode of the rectifier 8 through a lead.
In the invention, after wiring is finished, a first wire clamping pliers 20 and a second wire clamping pliers 21 are respectively clamped on an incoming and outgoing wire of an electric energy meter, a circuit is connected, a rotating motor 3 rotates, when the rotating is too fast, a movable rod 14 is manually moved, the movable rod 14 drives a second bracket 17 to move in a first bracket 16 to avoid moving deviation, meanwhile, the movable rod 14 drives a conductive piece 12 to move on the conductive coil 11 to change the number of turns of the conductive coil 11 connected into the circuit, so that the current is reduced, the rotating speed of the rotating motor 3 is changed, and the rotating direction of an indicating ball 7 is more intuitively observed, the structure of the invention is reasonable, whether the incoming and outgoing wires of the electric energy meter are reversely connected can be quickly judged according to the rotating direction of the indicating ball 7 by utilizing the rotating motor 3 to move on the conductive coil 11, the convenience in use can be avoided because the rotating motor 3 rotates too fast, and the rotation direction of the indicating ball cannot be discriminated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1.电能表进出线接反快速查验仪,包括查验仪本体(1),其特征在于,所述查验仪本体(1)为中空结构,所述查验仪本体(1)的内壁底端设有安装座(2),所述安装座(2)上设有旋转电机(3),所述旋转电机(3)通过输出轴连接有从动轴(4),且查验仪本体(1)上开设有活动通孔(5),所述从动轴(4)通过活动通孔(5)延伸至查验仪本体(1)外,且从动轴(4)活动设于活动通孔(5)内,所述从动轴(4)延伸至查验仪本体(1)外的一端连接有连接杆(6),且连接杆(6)远离从动轴(4)的一端连接有指示球(7),所述查验仪本体(1)的内壁顶端设有整流器(8),且查验仪本体(1)的内壁一侧设有安装支架(9)。1. A quick checker for the reverse connection of the incoming and outgoing wires of an electric energy meter, including a checker body (1), characterized in that the checker body (1) is a hollow structure, and the bottom end of the inner wall of the checker body (1) is provided with A mounting seat (2), a rotary motor (3) is arranged on the mounting seat (2), the rotary motor (3) is connected with a driven shaft (4) through an output shaft, and the inspection instrument body (1) is provided with an opening There is a movable through hole (5), the driven shaft (4) extends to the outside of the inspection instrument body (1) through the movable through hole (5), and the driven shaft (4) is movably arranged in the movable through hole (5) A connecting rod (6) is connected to one end of the driven shaft (4) extending to the outside of the inspection instrument body (1), and an indicator ball (7) is connected to the end of the connecting rod (6) away from the driven shaft (4) A rectifier (8) is provided at the top of the inner wall of the inspection device body (1), and a mounting bracket (9) is provided on one side of the inner wall of the inspection device body (1). 2.根据权利要求1所述的电能表进出线接反快速查验仪,其特征在于,所述安装支架(9)上套设有瓷筒(10),所述瓷筒(10)上绕设有导电线圈(11),所述导电线圈(11)上套设有导电件(12),且导电件(12)上开设有第一通孔(13),所述导电件(12)通过第一通孔(13)套设于导电线圈(11)上,所述导电件(12)的顶端设有活动杆(14),且活动杆(14)为绝缘材料制作而成,所述查验仪本体(1)上开设有活动槽道(15),且活动杆(14)通过活动槽道(15)延伸至查验仪本体(1)外,所述活动杆(14)活动设于活动槽道(15)内。2. The quick checker for reverse connection of the incoming and outgoing wires of an electric energy meter according to claim 1, characterized in that a porcelain cylinder (10) is sleeved on the mounting bracket (9), and a porcelain cylinder (10) is wound around the porcelain cylinder (10). There is a conductive coil (11), a conductive member (12) is sleeved on the conductive coil (11), and a first through hole (13) is opened on the conductive member (12), and the conductive member (12) passes through the first through hole (13). A through hole (13) is sleeved on the conductive coil (11), the top of the conductive member (12) is provided with a movable rod (14), and the movable rod (14) is made of insulating material. The main body (1) is provided with a movable channel (15), and the movable rod (14) extends to the outside of the inspection instrument body (1) through the movable channel (15), and the movable rod (14) is movably arranged in the movable channel (15). 3.根据权利要求1或2所述的电能表进出线接反快速查验仪,其特征在于,所述安装支架(9)的上方设有第一支架(16),且第一支架(16)设于查验仪本体(1)的内壁上,所述第一支架(16)为中空结构,所述第一支架(16)内活动设有第二支架(17),且第二支架(17)延伸至第一支架(16)外,所述第二支架(17)延伸至第一支架(16)外的一端设于活动杆(14)上,所述第一支架(16)的内壁两侧对称开设有滑槽(18),且第二支架(17)的两侧对称设有滑块(19),所述滑块(19)活动设于滑槽(18)内。3. The quick checker for reverse connection of incoming and outgoing wires of an electric energy meter according to claim 1 or 2, characterized in that a first bracket (16) is provided above the mounting bracket (9), and the first bracket (16) It is arranged on the inner wall of the inspection apparatus body (1), the first bracket (16) is a hollow structure, a second bracket (17) is movably provided in the first bracket (16), and the second bracket (17) The end of the second bracket (17) extending to the outside of the first bracket (16) is provided on the movable rod (14), and the inner wall of the first bracket (16) is on both sides A chute (18) is symmetrically opened, and sliding blocks (19) are symmetrically arranged on both sides of the second bracket (17), and the sliding blocks (19) are movably arranged in the chute (18). 4.根据权利要求3所述的电能表进出线接反快速查验仪,其特征在于,所述第一支架(16)靠近活动杆(14)的一侧开设有第二通孔,且第二支架(17)通过第二通孔延伸至第一支架(16)外,所述第二支架(17)活动设于第二通孔内。4 . The quick checker for reverse connection of incoming and outgoing wires of an electric energy meter according to claim 3 , wherein a second through hole is opened on the side of the first bracket ( 16 ) close to the movable rod ( 14 ), and the second The bracket (17) extends to the outside of the first bracket (16) through the second through hole, and the second bracket (17) is movably arranged in the second through hole. 5.根据权利要求1所述的电能表进出线接反快速查验仪,其特征在于,所述装置本体(1)的上方设有第一夹线钳(20)和第二夹线钳(21),且第一夹线钳(20)和第二夹线钳(21)分别通过导线电信连接有整流器(8)。5 . The quick checker for reverse connection of incoming and outgoing wires of an electric energy meter according to claim 1 , wherein a first wire clamp ( 20 ) and a second wire clamp ( 21 ) are provided above the device body ( 1 ). 6 . ), and the first wire clamp (20) and the second wire clamp (21) are respectively connected with a rectifier (8) through a wire telecommunication. 6.根据权利要求2所述的电能表进出线接反快速查验仪,其特征在于,所述瓷筒(10)的顶端两侧对称设有定位块,且导电线圈(11)绕设于定位块之间。6 . The quick checker for reverse connection of incoming and outgoing wires of an electric energy meter according to claim 2 , wherein positioning blocks are symmetrically arranged on both sides of the top of the porcelain cylinder (10), and the conductive coil (11) is wound around the positioning block. 7 . between blocks. 7.根据权利要求1或2所述的电能表进出线接反快速查验仪,其特征在于,所述整流器(8)的正极通过导线连接有导电线圈(11),且导电件(12)通过导线连接有旋转电机(3)的正极,所述旋转电机(3)的负极通过导线连接有整流器(8)的负极。7. The electric energy meter inlet and outlet line quick checker according to claim 1 or 2, characterized in that the positive electrode of the rectifier (8) is connected with a conductive coil (11) through a wire, and the conductive member (12) passes through The wire is connected with the positive pole of the rotating electrical machine (3), and the negative pole of the rotating electrical machine (3) is connected with the negative pole of the rectifier (8) through the wire.
CN201911282490.8A 2019-12-13 2019-12-13 Electric energy meter wire inlet and outlet reverse connection rapid checking instrument Active CN110954851B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911282490.8A CN110954851B (en) 2019-12-13 2019-12-13 Electric energy meter wire inlet and outlet reverse connection rapid checking instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911282490.8A CN110954851B (en) 2019-12-13 2019-12-13 Electric energy meter wire inlet and outlet reverse connection rapid checking instrument

Publications (2)

Publication Number Publication Date
CN110954851A true CN110954851A (en) 2020-04-03
CN110954851B CN110954851B (en) 2025-07-08

Family

ID=69981526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911282490.8A Active CN110954851B (en) 2019-12-13 2019-12-13 Electric energy meter wire inlet and outlet reverse connection rapid checking instrument

Country Status (1)

Country Link
CN (1) CN110954851B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112098684A (en) * 2020-09-16 2020-12-18 国网山东省电力公司招远市供电公司 Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter
CN112462319A (en) * 2020-09-30 2021-03-09 国网山东省电力公司烟台供电公司 Electric energy meter business turn over line is distinguished inspection device fast

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102981100A (en) * 2012-12-12 2013-03-20 上海市电力公司 Judgment method for misconnection of three-phase three-wire electric energy meter
CN103163409A (en) * 2011-12-19 2013-06-19 上海安科瑞电气股份有限公司 Method and device used for correcting inverse current wiring of field electric instrument
CN103576041A (en) * 2012-08-07 2014-02-12 国家电网公司 Method and device for detecting electrical equipment secondary circuit
CN104849522A (en) * 2015-05-08 2015-08-19 国家电网公司 Three-phase plug-in type electric energy meter mounting seat and use method
WO2017107556A1 (en) * 2015-12-25 2017-06-29 深圳长城开发科技股份有限公司 Electricity meter and live wire detection circuit
CN109581273A (en) * 2019-01-24 2019-04-05 国网山东省电力公司日照供电公司 A kind of system and method that quick examination electricity meter inlet-outlet line is reversed
JP2019138832A (en) * 2018-02-14 2019-08-22 有限会社フォーテック Inspection tool
CN213876000U (en) * 2020-09-30 2021-08-03 国网山东省电力公司烟台供电公司 A fast distinguishing inspection device for incoming and outgoing lines of an electric energy meter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103163409A (en) * 2011-12-19 2013-06-19 上海安科瑞电气股份有限公司 Method and device used for correcting inverse current wiring of field electric instrument
CN103576041A (en) * 2012-08-07 2014-02-12 国家电网公司 Method and device for detecting electrical equipment secondary circuit
CN102981100A (en) * 2012-12-12 2013-03-20 上海市电力公司 Judgment method for misconnection of three-phase three-wire electric energy meter
CN104849522A (en) * 2015-05-08 2015-08-19 国家电网公司 Three-phase plug-in type electric energy meter mounting seat and use method
WO2017107556A1 (en) * 2015-12-25 2017-06-29 深圳长城开发科技股份有限公司 Electricity meter and live wire detection circuit
JP2019138832A (en) * 2018-02-14 2019-08-22 有限会社フォーテック Inspection tool
CN109581273A (en) * 2019-01-24 2019-04-05 国网山东省电力公司日照供电公司 A kind of system and method that quick examination electricity meter inlet-outlet line is reversed
CN213876000U (en) * 2020-09-30 2021-08-03 国网山东省电力公司烟台供电公司 A fast distinguishing inspection device for incoming and outgoing lines of an electric energy meter

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
佚名;: "电能计量装置接线检查及分析", 《原创力文档》, 28 February 2019 (2019-02-28), pages 1 - 13 *
郭超;: "单相电能表接线分析和探讨", 《电气时代》, no. 11, 10 November 2008 (2008-11-10), pages 94 - 95 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112098684A (en) * 2020-09-16 2020-12-18 国网山东省电力公司招远市供电公司 Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter
CN112098684B (en) * 2020-09-16 2023-07-28 国网山东省电力公司招远市供电公司 Electric energy meter inlet and outlet line connection reverse quick inspection instrument
CN112462319A (en) * 2020-09-30 2021-03-09 国网山东省电力公司烟台供电公司 Electric energy meter business turn over line is distinguished inspection device fast

Also Published As

Publication number Publication date
CN110954851B (en) 2025-07-08

Similar Documents

Publication Publication Date Title
CN110954851A (en) Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter
CN206696401U (en) Switch life detection device and switch life detecting system
CN102012486B (en) Voltage measuring tool special for storage battery
CN202710709U (en) Voltage withstand testing jig of horizontal transformer
CN215526067U (en) Detection tool
CN106546919A (en) A kind of test device and method of testing of micro-motor rotor
CN201903631U (en) Special pressure measuring tool for storage battery
CN207318530U (en) Medium-sized low voltage motor wraps detection novel clamp in vain
CN108981823B (en) A multi-parameter integrated sensor for monitoring generator armature windings
CN214280595U (en) A mobile low-voltage temporary electricity metering device
CN214429304U (en) Waterproof electricity taking device for high-voltage distribution line
CN205229424U (en) Battery measuring device
CN112098684B (en) Electric energy meter inlet and outlet line connection reverse quick inspection instrument
CN205787086U (en) Current transformer detection equipment
CN107817413B (en) Methods to eliminate the influence of short-circuit resistance in low-voltage short-circuit impedance test of transformer
CN209400605U (en) D.C. resistance test clamp
CN206132946U (en) Little electric motor rotor's auxiliary test device
CN111536864B (en) Central polarity correction circuit and portable correction instrument
CN107741551A (en) 110kV polarity testing device of current transformer
CN109752286B (en) Online detection device and method for dispersion uniformity of lithium ion battery slurry
CN206945917U (en) A kind of Portable DC motor neutral measurement apparatus
CN208334449U (en) A kind of three-phase kilowatt-hour meter wiring safe floor
CN207424098U (en) A kind of full automatic high accurancy and precision one circuit resistance tester
CN223611614U (en) A DC resistance tester for cable conductors
CN222498184U (en) A wire harness winding device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant