CN108107238A - A kind of new transient state recording type fault detector - Google Patents

A kind of new transient state recording type fault detector Download PDF

Info

Publication number
CN108107238A
CN108107238A CN201711410224.XA CN201711410224A CN108107238A CN 108107238 A CN108107238 A CN 108107238A CN 201711410224 A CN201711410224 A CN 201711410224A CN 108107238 A CN108107238 A CN 108107238A
Authority
CN
China
Prior art keywords
main body
magnetic core
translucent cover
transient state
fault detector
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
CN201711410224.XA
Other languages
Chinese (zh)
Other versions
CN108107238B (en
Inventor
袁郭竣
王马军
张泳
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.)
Ningbo Taifengyuan Electric Co Ltd
Original Assignee
Ningbo Taifengyuan Electric 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 Ningbo Taifengyuan Electric Co Ltd filed Critical Ningbo Taifengyuan Electric Co Ltd
Priority to CN201711410224.XA priority Critical patent/CN108107238B/en
Publication of CN108107238A publication Critical patent/CN108107238A/en
Application granted granted Critical
Publication of CN108107238B publication Critical patent/CN108107238B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals

Abstract

A kind of new transient state recording type fault detector, is related to fault detection instrument field.The body bottom surface that it is included is connected with translucent cover, and plaque is arranged at translucent cover and the link position of main body;Body interior, which is provided with, is attracted magnet apparatus for placing, and magnetic core protective case is arranged at the upper position of main body;The position for connecting main body and translucent cover is equipped with screw fastening type sealing device, and sensing chip is arranged on body top and is set on same surface with magnetic core protection;At position where calibrating terminal is arranged on plaque in main body.After adopting the above technical scheme, the present invention has the beneficial effect that:It has good functions of waterproof and dustproof; movable plate magnetic is easy to disassemble; reduce the possibility of assembly manipulation error; sensing chip is conducive to the processing of later stage signal using rubber material; protect permalloy takes electric energy power; the blind examination of product can be carried out facilitating blind detection operation, ensure current detection accuracy, quickly position fault section.

Description

A kind of new transient state recording type fault detector
Technical field
The present invention relates to fault detection instrument fields, and in particular to a kind of new transient state recording type fault detector.
Background technology
Transient state recording type fault detector can be by accurately measurement and the high speed recording to line current, can accurate detection line Road fault type, and quickly position fault section.
The waterproof type of visible transient state recording type fault detector is mainly screw thread screwing hermetic and spiral shell currently on the market Fit sealing is followed closely, complicated and be difficult to lock sealing device, waterproof effect is poor.Transient state recording type fault detector is encapsulating It is fixed in main body, movable plate magnetic is that assembling is fixed in movable plate assembly, and this processing mode is easy to cause assembles in worker There is maloperation may during operation.The actuation face of magnetic, which is put back, causes pull-in failure, since the in vivo magnetic of master is that encapsulating fixation is torn open Fill it is pretty troublesome, it is more time-consuming even if dismounting movable plate is also required to dismounting movable plate screw and rotation axis;And its electric field induction for including Piece is generally stainless steel, needed in induction field conducting wire by the electric field induction piece of thin slice bend with conductive contact so as to Induction field, since electric field induction piece width is typically small, so the electric current of sampling is relatively weak, to the signal processing in later stage not Profit;During shift position and transport, the permalloy magnetic core in existing fault detector does not have additional protection, easily damages Wound causes magnetic core that electric energy power is taken to decline, used to inserting when transient state recording type fault detector is used to be detected electric current Terminal is inconvenient to plug, it is impossible to achieve the effect that quickly to detect.
The content of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of new transient state recording type failure refers to Show device, it has good functions of waterproof and dustproof, and movable plate magnetic is easy to disassemble, reduces the possibility of assembly manipulation error, sense Piece is answered to be conducive to the processing of later stage signal using rubber material, protect permalloy takes electric energy power, can be to the blind of product Inspection carries out technical support, facilitates blind detection operation, ensures current detection accuracy, quickly positions fault section.
To achieve the above object, the technical scheme is that:It includes main body 1, translucent cover 2, plaque 3, actuation magnet Apparatus for placing 4, magnetic core protective case 5, screw fastening type sealing device 6, sensing chip 7, calibrating terminal 8;The lower surface of main body 1 is connected with Translucent cover 2, plaque 3 are arranged at the link position of translucent cover 2 and main body 1;Main body 1, which is internally provided with, is attracted magnet apparatus for placing 4, Magnetic core protective case 5 is arranged at the upper position of main body 1;It connects main body 1 and the position of translucent cover 2 is equipped with screw fastening type sealing device 6, Sensing chip 7 is arranged on 1 top of main body and is set on same surface with magnetic core protection;Calibrating terminal 8 is arranged on master where plaque 3 At position on body 1, when carrying out current failure detection using new transient state recording type fault detector, calibrating terminal 8 can be It is installed or removed in main body 1, calibrating terminal 8 can automatic short circuit during work.
Nameplate 11 is provided on the outer surface of the main body 1, when main body magnetic 12 and movable plate magnetic 13 are being attracted magnet After installation is complete on apparatus for placing 4, nameplate 11 is covered in and is attracted magnet apparatus for placing 4, ensure the external beautiful of fault detector See effect.
The intermediate surface position of the plaque 3 is equipped with calibrating terminal spliced eye 31, and plaque 3 sets calibrating terminal spliced eye 31 while facilitating calibrating terminal 8 to carry out grafting operation outside main body 1, also ensure main body 1 inside component from External action can reach good blind examination effect in blind examination product.
The magnetic core protective case 5 includes buckle 51, dispensing mounting hole 52, and buckle 51 is arranged on magnetic core protective case 5 or so The opening at both ends, dispensing mounting hole 52 are arranged on the surface of 5 both sides of magnetic core protective case.In order to protect the perm of wound around coil Alloy core, by permalloy magnetic core insertion magnetic core protective case 5, opening 51 pressing fastening of buckle, fixed permalloy magnetic Home position of the core in magnetic core protective case 5, in order to prevent permalloy magnetic core in transportational process because friction causes to damage, lead to It crosses dispensing mounting hole 52 further to fix permalloy magnetic core, magnetic core caused by avoiding the damage of permalloy magnetic core takes electric energy Power declines, and influences current detection accuracy.
The screw fastening type sealing device 6 includes four public be buckled 61, four master card buttons 62, ring type seals 63, four Public affairs buckle 61 is uniformly arranged on the inner surface of main body 1 and 2 link position of translucent cover, and four master card buttons 62 are uniformly arranged on transparent On the outer surface of cover 2 and 1 link position of main body, main body 1 compresses ring type seal 63 with translucent cover 2.Translucent cover 2 is covered in main body 1 Kill after that compresses ring type seal 63, rotating transparent cover 2 makes public buckle 61 be interference fitted with master card button 62, reach screw it is close The effect of envelope.
The sensing chip 7 includes two clamping jaws, 71, two conductive rubbers 72, and clamping jaw 71 is arranged on the top table of main body 1 Face position, conductive rubber 72 are arranged on the lower section of clamping jaw 71.Clamping jaw 71 makes cable 73 for clamping cable 73 to be detected It is contacted with conductive rubber 72, by the current sample of permalloy magnetic core, fault detect is carried out to electric current, quickly determines faulty section Section.
The calibrating terminal 8 is can be with automatic short circuit to insertion terminal, and calibrating terminal 8 includes male connector assembly 81, female seat Assembly 82, spring 83, spring bumper cover 84, male connector assembly 81 are connected by 84 holddown spring 83 of spring bumper cover with female seat assembly 82, Facilitate plug calibrating terminal 8, be conducive to the work being used for quickly detecting.
The lower surface of the public buckle 61 is provided with triangle card slot 64, and the upper surface of master card button 62 is provided with and triangle card The matched triangle boss 65 of 64 size of slot;Setting surface of the triangle card slot 64 on public buckle 61 is with triangle boss 65 in master card button The surface that sets on 62 is in certain angle of inclination.When translucent cover 2 presses ring type seal 3 on the body 1, rotating transparent Cover 2, makes triangle card slot 64 be engaged with triangle boss 65, certain angle of inclination is set to be conducive to easily compress sealing ring and is produced Raw certain interference volume, after being rotated in place, public affairs buckle 61 and the concavo-convex position of master card button 62 are mutually twisted, and avoid trying to shirk responsibility.
The operation principle of the present invention:During assembling, the translucent cover with plaque is tightened on master by screw fastening type sealing device On body, main body compresses ring type seal with translucent cover, and fault detector is allowed to possess better water proof and dust proof effect;When main body main body Magnetic 12 and movable plate magnetic 13 are being attracted after installation is complete on magnet apparatus for placing, and nameplate is covered in and is attracted magnet and places dress It puts, ensures the exterior appearance effect of fault detector;Clamping jaw in sensing chip clamps cable to be detected, makes cable with leading Electric rubber contact carries out current sample by the permalloy magnetic core for being equipped with outer protective jacket, carries out fault detect to electric current, soon The definite fault section of speed.When needing to carry out blind examination to production piece in the later stage, since the plaque being equipped with protects internal composition member Part facilitates blind detection operation.
After adopting the above technical scheme, the present invention has the beneficial effect that:It has good functions of waterproof and dustproof, and movable plate magnetic is convenient Dismounting, reduces the possibility of assembly manipulation error, and sensing chip is conducive to the processing of later stage signal using rubber material, protected Permalloy takes electric energy power, and the blind examination of product can be carried out to facilitate blind detection operation, ensures current detection accuracy, quick fixed Position fault section.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the embodiment of the present invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the plan view of corresponding diagram 1 of the present invention;
Fig. 3 is the partial sectional view of Fig. 2;
Fig. 4 is the structure diagram of magnetic core protective case 4 in the present invention;
Fig. 5 is public buckle 61, the structure diagram of master card button 62 in the present invention;
Fig. 6 is the structure diagram of sensing chip 7 in the present invention;
Fig. 7 is the structure diagram of calibrating terminal 8 in the present invention.
Description of the drawings:It includes main body 1, translucent cover 2, plaque 3, actuation magnet apparatus for placing 4, magnetic core protective case 5, spinner Formula sealing device 6, sensing chip 7, calibrating terminal 8, nameplate 11, main body magnetic 12, movable plate magnetic 13, calibrating terminal spliced eye 31, Buckle 51, dispensing mounting hole 52, public buckle 61, master card button 62, ring type seal 63, triangle card slot 64, triangle boss 65, folder Pawl 71, conductive rubber 72, cable 73, male connector assembly 81, female seat assembly 82, spring 83, spring bumper cover 84.
Specific embodiment
Referring to shown in Fig. 1-Fig. 7, present embodiment the technical solution adopted is that:It includes main body 1, translucent cover 2, decorations Plate 3 is attracted magnet apparatus for placing 4, magnetic core protective case 5, screw fastening type sealing device 6, sensing chip 7, calibrating terminal 8;The bottom of main body 1 Portion surface is connected with translucent cover 2, and plaque 3 is arranged at the link position of translucent cover 2 and main body 1;Main body 1 is internally provided with actuation magnetic Iron apparatus for placing 4, magnetic core protective case 5 are arranged at the upper position of main body 1;It connects main body 1 and the position of translucent cover 2 is equipped with spinner Formula sealing device 6, sensing chip 7 are arranged on 1 top of main body and are set on same surface with magnetic core protection;Calibrating terminal 8 is set In plaque 3 at position on the body 1, when carrying out current failure detection using new transient state recording type fault detector, Calibrating terminal 8 can install or remove on the body 1, and calibrating terminal 8 can automatic short circuit during work.
Nameplate 11 is provided on the outer surface of the main body 1, when main body magnetic 12 and movable plate magnetic 13 are being attracted magnet After installation is complete on apparatus for placing 4, nameplate 11 is covered in and is attracted magnet apparatus for placing 4, ensure the external beautiful of fault detector See effect.
The intermediate surface position of the plaque 3 is equipped with calibrating terminal spliced eye 31, and plaque 3 sets calibrating terminal spliced eye 31 while facilitating calibrating terminal 8 to carry out grafting operation outside main body 1, also ensure main body 1 inside component from External action can reach good blind examination effect in blind examination product.
The magnetic core protective case 5 includes buckle 51, dispensing mounting hole 52, and buckle 51 is arranged on magnetic core protective case 5 or so The opening at both ends, dispensing mounting hole 52 are arranged on the surface of 5 both sides of magnetic core protective case.In order to protect the perm of wound around coil Alloy core, by permalloy magnetic core insertion magnetic core protective case 5, opening 51 pressing fastening of buckle, fixed permalloy magnetic Home position of the core in magnetic core protective case 5, in order to prevent permalloy magnetic core in transportational process because friction causes to damage, lead to It crosses dispensing mounting hole 52 further to fix permalloy magnetic core, magnetic core caused by avoiding the damage of permalloy magnetic core takes electric energy Power declines, and influences current detection accuracy.
The screw fastening type sealing device 6 includes four public be buckled 61, four master card buttons 62, ring type seals 63, four Public affairs buckle 61 is uniformly arranged on the inner surface of main body 1 and 2 link position of translucent cover, and four master card buttons 62 are uniformly arranged on transparent On the outer surface of cover 2 and 1 link position of main body, main body 1 compresses ring type seal 63 with translucent cover 2.Translucent cover 2 is covered in main body 1 Kill after that compresses ring type seal 63, rotating transparent cover 2 makes public buckle 61 be interference fitted with master card button 62, reach screw it is close The effect of envelope.
The sensing chip 7 includes two clamping jaws, 71, two conductive rubbers 72, and clamping jaw 71 is arranged on the top table of main body 1 Face position, conductive rubber 72 are arranged on the lower section of clamping jaw 71.Clamping jaw 71 makes cable 73 for clamping cable 73 to be detected It is contacted with conductive rubber 72, by the current sample of permalloy magnetic core, fault detect is carried out to electric current, quickly determines faulty section Section.
The calibrating terminal 8 is can be with automatic short circuit to insertion terminal, and calibrating terminal 8 includes male connector assembly 81, female seat Assembly 82, spring 83, spring bumper cover 84, male connector assembly 81 are connected by 84 holddown spring 83 of spring bumper cover with female seat assembly 82, Facilitate plug calibrating terminal 8, be conducive to the work being used for quickly detecting.
The lower surface of the public buckle 61 is provided with triangle card slot 64, and the upper surface of master card button 62 is provided with and triangle card The matched triangle boss 65 of 64 size of slot;Setting surface of the triangle card slot 64 on public buckle 61 is with triangle boss 65 in master card button The surface that sets on 62 is in certain angle of inclination.When translucent cover 2 presses ring type seal 3 on the body 1, rotating transparent Cover 2, makes triangle card slot 64 be engaged with triangle boss 65, certain angle of inclination is set to be conducive to easily compress sealing ring and is produced Raw certain interference volume, after being rotated in place, public affairs buckle 61 and the concavo-convex position of master card button 62 are mutually twisted, and avoid trying to shirk responsibility.
The operation principle of the present invention:During assembling, the translucent cover with plaque is tightened on master by screw fastening type sealing device On body, main body compresses ring type seal with translucent cover, and fault detector is allowed to possess better water proof and dust proof effect;When main body main body Magnetic 12 and movable plate magnetic 13 are being attracted after installation is complete on magnet apparatus for placing, and nameplate is covered in and is attracted magnet and places dress It puts, ensures the exterior appearance effect of fault detector;Clamping jaw in sensing chip clamps cable to be detected, makes cable with leading Electric rubber contact carries out current sample by the permalloy magnetic core for being equipped with outer protective jacket, carries out fault detect to electric current, soon The definite fault section of speed.When needing to carry out blind examination to production piece in the later stage, since the plaque being equipped with protects internal composition member Part facilitates blind detection operation.
After adopting the above technical scheme, the present invention has the beneficial effect that:It has good functions of waterproof and dustproof, movable plate magnetic 13 is easy to disassemble, reduces the possibility of assembly manipulation error, and sensing chip is conducive to the processing of later stage signal using rubber material, Protect permalloy takes electric energy power, and the blind examination of product can be carried out to facilitate blind detection operation, ensure current detection accuracy, Quick positioning fault section.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair The other modifications or equivalent substitution that bright technical solution is made, without departing from the spirit and scope of technical solution of the present invention, It should be covered by the scope of the claims of the present invention.

Claims (8)

1. a kind of new transient state recording type fault detector, it is characterised in that:It includes main body (1), translucent cover (2), plaque (3), magnet apparatus for placing (4), magnetic core protective case (5), screw fastening type sealing device (6), sensing chip (7), calibrating terminal are attracted (8);The lower surface of main body 1 is connected with translucent cover (2), and plaque (3) is arranged at the link position of translucent cover (2) and main body (1); Main body (1), which is internally provided with, is attracted magnet apparatus for placing (4), and magnetic core protective case (5) is arranged at the upper position of main body (1);Even The position for connecing main body (1) and translucent cover (2) is equipped with screw fastening type sealing device (6), sensing chip (7) be arranged on main body (1) top and Same surface is set on magnetic core protection;At position where calibrating terminal (8) is arranged on plaque (3) in main body (1).
2. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The main body (1) nameplate (11) is provided on outer surface.
3. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The plaque (3) intermediate surface position is equipped with calibrating terminal spliced eye (31).
4. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The magnetic core is protected Sheath (5) includes buckle (51), dispensing mounting hole (52), and buckle (51) is arranged on the opening of magnetic core protective case (5) left and right ends Place, dispensing mounting hole (52) are arranged on the surface of magnetic core protective case (5) both sides.
5. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The screw fastening type Sealing device (6) includes four public buckles (61), four master card buttons (62), ring type seals (63), and four public buckles (61) are equal The even inner surface for being arranged on main body (1) and translucent cover (2) link position, four master card buttons (62) are uniformly arranged on translucent cover (2) With on the outer surface of main body (1) link position, main body (1) and translucent cover (2) compress ring type seal (63).
6. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The sensing chip (7) comprising two clamping jaws (71), two conductive rubbers (72), clamping jaw (71) is arranged on the upper face position of main body (1), conductive Rubber (72) is arranged on the lower section of clamping jaw (71).
7. a kind of new transient state recording type fault detector according to claim 1, it is characterised in that:The test lead Sub (8) are can be with automatic short circuit to insertion terminal, and calibrating terminal (8) includes male connector assembly (81), female seat assembly (82), spring (83), spring bumper cover (84), male connector assembly (81) are connected by spring bumper cover (84) holddown spring (83) with female seat assembly (82).
8. a kind of new transient state recording type fault detector according to claim 5, it is characterised in that:The public buckle (61) lower surface is provided with triangle card slot (64), and the upper surface of master card button (62) is provided with to be matched with triangle card slot (64) size Triangle boss (65);Setting surface of the triangle card slot (64) on public buckle (61) is with triangle boss (65) in master card button (62) On set surface be in certain angle of inclination.
CN201711410224.XA 2017-12-23 2017-12-23 Novel transient recording type fault indicator Active CN108107238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711410224.XA CN108107238B (en) 2017-12-23 2017-12-23 Novel transient recording type fault indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711410224.XA CN108107238B (en) 2017-12-23 2017-12-23 Novel transient recording type fault indicator

Publications (2)

Publication Number Publication Date
CN108107238A true CN108107238A (en) 2018-06-01
CN108107238B CN108107238B (en) 2020-11-03

Family

ID=62212599

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711410224.XA Active CN108107238B (en) 2017-12-23 2017-12-23 Novel transient recording type fault indicator

Country Status (1)

Country Link
CN (1) CN108107238B (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120146661A1 (en) * 2010-02-02 2012-06-14 Kirk Thomas Fault indicator capactive power source
CN103441384A (en) * 2013-08-30 2013-12-11 江苏新天地电气有限公司 Socket and connector including same
CN204088661U (en) * 2014-07-17 2015-01-07 航天科工深圳(集团)有限公司 The socket of the plug terminal preventing current transformer from opening a way and plug
CN205450243U (en) * 2016-03-31 2016-08-10 上海宏力达信息技术股份有限公司 Fault indicator coil tester
CN205657266U (en) * 2016-05-17 2016-10-19 国网山东省电力公司莱芜供电公司 Automatic short circuit wiring pen of secondary terminal
CN106053996A (en) * 2016-07-15 2016-10-26 北京国兴凯顺科技股份有限公司 Flexible magnetic induction wave record fault monitoring system
CN206038803U (en) * 2016-08-31 2017-03-22 天津浩源慧能科技有限公司 Record ripples fault indicator
CN206685707U (en) * 2017-04-20 2017-11-28 广西电网有限责任公司桂林供电局 A kind of magnet adsorption type anti-maloperation cover
CN206740799U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of structure of transient state recording type fault detector collecting unit
CN206740890U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of transient state recording type fault detector collecting unit shell
CN206742027U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of magnetic core mounting structure of transient state recording fault detector collecting unit
CN207396549U (en) * 2017-10-27 2018-05-22 长沙恒电聚能电子科技有限公司 Fault detector collecting unit shell

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120146661A1 (en) * 2010-02-02 2012-06-14 Kirk Thomas Fault indicator capactive power source
CN103441384A (en) * 2013-08-30 2013-12-11 江苏新天地电气有限公司 Socket and connector including same
CN204088661U (en) * 2014-07-17 2015-01-07 航天科工深圳(集团)有限公司 The socket of the plug terminal preventing current transformer from opening a way and plug
CN205450243U (en) * 2016-03-31 2016-08-10 上海宏力达信息技术股份有限公司 Fault indicator coil tester
CN205657266U (en) * 2016-05-17 2016-10-19 国网山东省电力公司莱芜供电公司 Automatic short circuit wiring pen of secondary terminal
CN106053996A (en) * 2016-07-15 2016-10-26 北京国兴凯顺科技股份有限公司 Flexible magnetic induction wave record fault monitoring system
CN206038803U (en) * 2016-08-31 2017-03-22 天津浩源慧能科技有限公司 Record ripples fault indicator
CN206685707U (en) * 2017-04-20 2017-11-28 广西电网有限责任公司桂林供电局 A kind of magnet adsorption type anti-maloperation cover
CN206740799U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of structure of transient state recording type fault detector collecting unit
CN206740890U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of transient state recording type fault detector collecting unit shell
CN206742027U (en) * 2017-05-24 2017-12-12 湖州讯德电子科技有限公司 A kind of magnetic core mounting structure of transient state recording fault detector collecting unit
CN207396549U (en) * 2017-10-27 2018-05-22 长沙恒电聚能电子科技有限公司 Fault detector collecting unit shell

Also Published As

Publication number Publication date
CN108107238B (en) 2020-11-03

Similar Documents

Publication Publication Date Title
CN1959419B (en) Current measurement instrument
CN108107238A (en) A kind of new transient state recording type fault detector
JPS5810702B2 (en) Denryokukei
CN109709377A (en) A kind of current detector
US6603302B2 (en) Circuit testers
US5018192A (en) Utility meter to telephone line interface
JP4707057B2 (en) Electricity meter
JP2005134233A (en) Measuring instrument
TW201307859A (en) Testing card of testing a card reader comforming to cards with different specifications
CN219321764U (en) Audio plug type meat detecting needle with winding shell
CN214895575U (en) Circuit electric quantity collector
CN210269899U (en) Flexible double-channel voltage type speed sensor
CN217689135U (en) Intelligent partial discharge high-frequency current sensor
JP2004325273A (en) Current sensor
CN205643437U (en) Ammeter termination
CN216161999U (en) Dust-protection type electrical instrument
CN215494083U (en) Automatic calibrating device of static tester
CN216051876U (en) Open-type Hall small current clamp probe
CN218974460U (en) High-precision voltage data gauge outfit structure
CN215449540U (en) LED lamps and lanterns power withstand voltage testing arrangement
CN215641785U (en) Testing device for current transformer
CN213120612U (en) Rotary signal transmission base convenient for sensor installation
CN203217039U (en) High-frequency current partial-discharge live detector
CN209858631U (en) Current clamp
CN210467561U (en) Buckle type current transformer

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