CN114325052A - Clamp-on ammeter calibrating device - Google Patents
Clamp-on ammeter calibrating device Download PDFInfo
- Publication number
- CN114325052A CN114325052A CN202111642966.1A CN202111642966A CN114325052A CN 114325052 A CN114325052 A CN 114325052A CN 202111642966 A CN202111642966 A CN 202111642966A CN 114325052 A CN114325052 A CN 114325052A
- Authority
- CN
- China
- Prior art keywords
- plate
- clamp
- supporting
- ammeter
- wire
- 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
Links
Images
Abstract
The invention belongs to the technical field of electrical measuring instruments, and particularly discloses a clamp-on ammeter calibrating device. Wherein this clip-on ammeter calibrating device includes: the device comprises a base, a first lead, a second lead, a supporting plate and a detachable lead sleeve; the base is provided with an accommodating groove, the supporting plate is provided with an extending hole, and the side surface of the base is provided with a connecting hole; a first supporting edge and a second supporting edge are respectively arranged at two ends of the supporting plate, and a clamp is arranged on the upper side surface of the supporting plate; the side of going up of base is provided with vertical fagging, is provided with spacing kicker in the holding tank. The clamp can be fixed to the supporting plate and matched with the clamp, so that the jaw of the clamp can enclose the first wire and the second wire extending out of the extending hole of the supporting plate, the calibration of the four parameters including current indication error, current position influence, current angle influence and load current can be carried out, calibration equipment for measuring personnel is reduced, the load of the measuring personnel is reduced, and the measuring personnel can measure leakage current conveniently.
Description
Technical Field
The invention relates to the technical field of electrical measuring instruments, in particular to a clamp-on ammeter calibrating device.
Background
The leakage current is a current formed between metal parts insulated from each other in an electric band or between a charged part and a grounded part through a medium or an insulating surface around the charged part in the absence of a fault applied voltage. It is one of the important signs for measuring the insulation performance of electric appliances and is the main index of the safety performance of products. At present, a clamp-on ammeter is generally adopted to detect leakage current, and the clamp-on ammeter needs to calibrate parameters of current indication error, current position influence, current angle influence and load current before use so as to ensure the measurement accuracy of the clamp-on ammeter, and then a plurality of special parameter calibration devices are needed to perform matching calibration. However, a plurality of parameter calibration devices are inconvenient to carry, so that a large amount of equipment is required to be carried by a measuring person to arrive at a site for calibration and detection, the burden of the measuring person is heavy, and the measurement of leakage current is inconvenient.
Disclosure of Invention
The purpose of the invention is: the utility model provides a pincerlike ampere meter calibrating device to solve prior art pincerlike ampere meter calibration equipment and carry inconveniently, bear a burden greatly, inconvenient measurement leakage current's technical problem.
In order to achieve the above object, the present invention provides a calibration apparatus for a current clamp meter, comprising: the device comprises a base, a first lead, a second lead, a supporting plate and a detachable lead sleeve for tightly sleeving the first lead and the second lead; an inner cavity is formed in the base, an accommodating groove used for accommodating the supporting plate is formed in the upper side of the base, the supporting plate is provided with an extending hole communicated with the inner cavity, a connecting hole communicated with the inner cavity is formed in the side face of the base, and the first wire is provided with a first connecting section extending out of the connecting hole and a first extending section connected with the first connecting section; the second lead has a second protruding section; the first extending section and the second extending section are vertically arranged and extend out of the extending hole; one end of the supporting plate is provided with a first supporting edge, the other end of the supporting plate is provided with a second supporting edge, and the upper side surface of the supporting plate is provided with a clamp for clamping the pincer-shaped ammeter; the upper side surface of the base is provided with a vertical supporting plate used for being abutted against the second supporting edge, and the accommodating groove is internally provided with a limiting supporting block used for being abutted against the first supporting edge;
when the first supporting edge is abutted against the limiting supporting block and the second supporting edge is abutted against the vertical supporting plate, the upper side surface of the supporting plate and the horizontal plane form a measuring included angle.
Preferably, the measurement included angle is 30 degrees.
Preferably, the jig comprises: the device comprises a first clamping plate, a second clamping plate, a first resetting device and a second resetting device, wherein the first resetting device is used for driving the first clamping plate to approach the second clamping plate; the first clamping plate and the second clamping plate are matched to form a clamping opening for clamping the clip-on ammeter.
Preferably, the length direction of the first clamping plate is parallel to the length direction of the second clamping plate; the stretching holes are strip-shaped holes extending along a first straight line direction, and the first straight line direction is parallel to the length direction of the first clamping plate.
Preferably, the support plate is provided with a scale having an extending direction parallel to the first linear direction.
Preferably, the removable wire cover has a first cover aperture for covering the first wire and a second cover aperture for covering the second wire.
Preferably, the base is provided with a square frame and a bottom plate, the bottom plate and the square frame enclose the inner cavity, and the square frame is detachably connected with the bottom plate.
Preferably, the square frame includes: the first side plate, the second side plate, the third side plate and the fourth side plate are connected in sequence; the head end of the first side plate is connected with the tail end of the fourth side plate; the vertical supporting plates are arranged on the fourth side plate, the number of the limiting supporting blocks is two, the limiting supporting blocks are respectively arranged on the first side plate and the third side plate, and the connecting holes are formed in the third side plate.
Preferably, the first side plate is detachably connected with the second side plate and the fourth side plate, and the third side plate is detachably connected with the second side plate and the fourth side plate.
Preferably, the bottom surface of the first supporting edge and the bottom surface of the second supporting edge are both provided with a heightening block which is used for abutting against the bottom surface of the accommodating groove.
The clamp-on ammeter calibrating device provided by the invention has the beneficial effects that: the support plate is matched with the clamp to fix the clamp-on ammeter, so that a jaw of the clamp-on ammeter can enclose a first lead and a second lead which extend out of the extending hole of the support plate, and the first lead and the second lead can form a lead group through the detachable lead sleeve, so that the clamp-on ammeter can be calibrated for load current; demolish removable wire cover, take off the second wire, alright this moment with the first wire of exclusive use calibrate, correctable "current instruction error", "the influence of current position", change the angle alright calibration "the influence of current angle" of backup pad through spacing kicking block and vertical fagging, then utilize a calibrating device can carry out the calibration of "current instruction error", "the influence of current position", "the influence of current angle", "the calibration of these four parameters of load current", reduce survey crew's calibration equipment, reduce survey crew's heavy burden, make things convenient for survey crew to measure leakage current. Secondly, the backup pad can take off from holding the groove for the backup pad with the base separation, be convenient for survey crew accomodates.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a calibration apparatus for a clamp-on ammeter according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a support plate according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a calibration apparatus for a current clamp meter according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a support plate in a bracing state according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of the base of the embodiment of the present invention after being disassembled;
FIG. 6 is a schematic diagram of a removable wire cover, according to an embodiment of the present invention.
In the figure, 100, the base; 110. an inner cavity; 120. accommodating grooves; 121. a limit supporting block; 130. connecting holes; 140. a vertical supporting plate; 150. a square frame; 151. a first side plate; 152. a second side plate; 153. a third side plate; 154. a fourth side plate; 160. a base plate; 200. a first conductive line; 210. a first connection section; 220. a first extension section; 300. a second conductive line; 310. a second protruding section; 400. a support plate; 410. an outlet hole; 420. a first support edge; 430. a second support edge; 440. a clamp; 441. a first splint; 442. a second splint; 443. a first reset device; 444. a second reset device; 450. calibration; 460. a block for raising; 470. a guide groove; 500. a detachable wire sheath; 510. a first trepan boring; 520. and a second set of holes.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to fig. 6, a calibration apparatus for a current clamp meter according to an embodiment of the present invention will be described.
Referring to fig. 1 to 3, a calibration apparatus for a clamp ammeter according to an embodiment of the present invention includes: the base 100, the first wire 200, the second wire 300, the supporting plate 400, the detachable wire sleeve 500 for tightly sleeving the first wire 200 and the second wire 300; the inner cavity 110 is arranged in the base 100, the accommodating groove 120 for accommodating the supporting plate 400 is arranged on the upper side of the base 100, the supporting plate 400 is provided with an extending hole 410 communicated with the inner cavity 110, the side surface of the base 100 is provided with a connecting hole 130 communicated with the inner cavity 110, and the first lead 200 is provided with a first connecting section 210 extending out of the connecting hole 130 and a first extending section 220 connected with the first connecting section 210; the second conductive line 300 has a second protruding section 310; the first and second protruding sections 220 and 310 are vertically disposed and protrude from the protruding hole 410; one end of the supporting plate 400 is provided with a first supporting edge 420, the other end of the supporting plate 400 is provided with a second supporting edge 430, and the upper side surface of the supporting plate 400 is provided with a clamp 440 for clamping the clip-on ammeter; the upper side surface of the base 100 is provided with a vertical supporting plate 140 for abutting against the second supporting edge 430, and the accommodating groove 120 is internally provided with a limiting supporting block 121 for abutting against the first supporting edge 420; the limiting supporting block 121 is matched with the accommodating groove 120 to form a clamping groove; when the first supporting edge 420 abuts against the limit supporting block 121 and the second supporting edge 430 abuts against the vertical supporting plate 140, the upper side surface of the supporting plate 400 forms a measurement included angle with the horizontal direction. The removable wire sheath 500 may connect the first wire 200 and the second wire 300 to form a wire set,
the base 100 serves to support the support plate 400, the first conductive line 200, and the second conductive line 300, the first connection section 210 of the first conductive line 200 protruding from the connection hole 130 to connect a circuit, and the second protrusion section 310 of the second conductive line 300 protruding from the protrusion hole 410. When the support plate 400 is placed on the receiving groove 120, the upper side of the support plate 400 is horizontal such that the length directions of the first and second wires 200 and 300 are perpendicular to the upper side of the support plate 400. The clamp 440 of the support plate 400 is used to clamp the current clamp meter such that the current clamp meter can be fixed to the support plate 400 with the jaw of the current clamp meter enclosing the first wire 200 and the second wire 300. After the clip ammeter is fixed on the support plate 400 by adjusting the clipping position of the clip ammeter, the normal of the jaw of the clip ammeter is perpendicular to the support plate 400, and the positions of the first lead 200 and the second lead 300 pass through the center of the jaw of the clip ammeter. When the influence of the current angle needs to be calibrated, the supporting plate 400 is taken, the first supporting edge 420 is abutted to the limiting supporting block 121, the second supporting edge 430 is abutted to the vertical supporting plate 140, and a measuring included angle (refer to an included angle B in fig. 4) is formed between the upper side surface of the supporting plate 400 and the horizontal direction to form an inclined supporting state; it should be noted that the measurement included angle is 30 degrees; the normal of the jaw of the clamp ammeter has an angle (refer to angle a in fig. 4) with the first wire 200, and the angle is 30 degrees, so as to calibrate the "influence of current angle". The removable wire sheath 500 may connect the first wire 200 and the second wire 300 to form a wire set, which may be used to calibrate a clamp-on ammeter for "load current".
In use, the support plate 400 is placed in the receiving groove 120 such that the upper side of the support plate 400 is horizontal; then the clip-on ammeter is placed on the clamp 440 on the support plate 400, and the position of the clip-on ammeter is adjusted so that the normal of the jaw of the clip-on ammeter is perpendicular to the support plate 400, and the positions of the first wire 200 and the second wire 300 pass through the center of the jaw of the clip-on ammeter, so that the first wire 200 and the second wire 300 are parallel to the normal of the jaw of the clip-on ammeter at this time; when the parameters of the split-core ammeter, such as the current indication error, the current position influence and the current angle influence, need to be calibrated, the detachable wire sleeve 500 needs to be removed, only the first wire 200 is left, and at this time, the current indication error, the current position influence and the current angle influence need to be calibrated, so that the position of the support plate 400 needs to be adjusted, the support plate 400 is in a diagonal bracing state, referring to fig. 4, an included angle is formed between the normal of the jaw of the split-core ammeter and the first wire 200, and the current angle influence can be calibrated. When the 'load current' needs to be calibrated, the upper side surface of the supporting plate 400 is restored to be in a horizontal state, the first wire 200 and the second wire 300 are connected through the detachable wire sleeve 500, the positive electrode of a power supply is connected to the joint, the negative electrode of the power supply is connected to the other end of the second wire 300, the resistor and the ammeter are connected to the other end of the first wire 200, a leakage current effect can be formed between the attached first wire 200 and the attached second wire 300, the current is monitored at the moment, and the 'load current' can be calibrated.
The support plate 400 of the calibration apparatus for a clamp-on ammeter of the present embodiment, in combination with the clamp 440, can fix the clamp-on ammeter, such that the jaws of the clamp-on ammeter can enclose the first wire 200 and the second wire 300 extending from the extending hole 410 of the support plate 400, and the first wire 200 and the second wire 300 can form a wire group through the detachable wire sheath 500, so as to calibrate the "load current" of the clamp-on ammeter; demolish removable wire cover 500, take off second wire 300, alright use first wire 200 alone this moment calibrates, correctable "current instruction error", "influence of current position", change the angle alright calibration "the influence of current angle" of backup pad 400 through spacing stay block 121 and vertical stay plate 140, then utilize a calibrating device can carry out the calibration of these four parameters of "current instruction error", "the influence of current position", "the influence of current angle", "load current", reduce survey crew's calibration equipment, reduce survey crew's heavy burden, make things convenient for survey crew to measure leakage current. Also, the support plate 400 may be removed from the receiving groove 120 so that the support plate 400 is separated from the base 100 for the convenience of the measurer to receive.
In a preferred embodiment of the present invention, referring to fig. 2, the jig 440 includes: a first clamping plate 441, a second clamping plate 442, a first resetting device 443 for driving the first clamping plate 441 to approach the second clamping plate 442, and a second resetting device 444 for driving the second clamping plate 442 to approach the first clamping plate 441; the first clamping plate 441 and the second clamping plate 442 cooperate to form a clamping opening for clamping the clip-on ammeter. The first and second returning devices 443, 444 are both return springs and drive the first and second clamping plates 441, 442 to move toward each other, so as to provide clamping force for the current clamp meter, and the first and second clamping plates 441, 442 clamp the current clamp meter.
Note that, in order to secure the moving direction of the first clamping plate 441 and the second clamping plate 442, the support plate 400 is provided with a guide groove 470, and the first clamping plate 441 and the second clamping plate 442 respectively extend into the guide groove 470 through the slider to secure the clamping direction.
In a preferred embodiment of the present invention, referring to fig. 2, the length direction of the first clamping plate 441 is parallel to the length direction of the second clamping plate 442; the extension holes 410 are bar-shaped holes extending in a first linear direction parallel to the longitudinal direction of the first clamping plate 441. When the position of the clamp ammeter is adjusted along the length direction of the first clamping plate 441, the clamp ammeter can move along the first linear direction, so that the first wire 200 and the second wire 300 can be conveniently adjusted to be aligned with the jaw center position of the clamp ammeter.
In a preferred embodiment of the present invention, referring to fig. 2, the support plate 400 is provided with a scale 450 having an extending direction parallel to the first linear direction. The scale 450 is located on one side of the bar-shaped hole to facilitate measuring the positions of the first wire 200 and the second wire 300 and the jaw center position of the clip-on ammeter, and facilitate accurately adjusting the jaw center position of the first wire 200 and the second wire 300 aligned to the clip-on ammeter.
In a preferred embodiment of the present invention, referring to FIG. 6, the removable wire sheath 500 has a first sheath aperture 510 for sheathing the first wire 200 and a second sheath aperture 520 for sheathing the second wire 300. The wire sheath is a plastic sheath that can trap the first wire 200 and the second wire 300 to form a wire set to facilitate calibration of the "load current" of the clamp ammeter.
In a preferred embodiment of the present invention, referring to fig. 1 and 5, the base 100 has a square frame 150 and a bottom plate 160, the bottom plate 160 and the square frame 150 enclose an inner cavity 110, and the square frame 150 is detachably connected to the bottom plate 160. That is, the base 100 is a square base, and the bottom plate 160 can be detached from the square frame 150, so that the base 100 can be detached more completely and is convenient to store.
In a preferred embodiment of the present invention, referring to fig. 5, the square frame 150 includes: a first side plate 151, a second side plate 152, a third side plate 153, and a fourth side plate 154 connected in sequence; the head end of the first side plate 151 is connected with the tail end of the fourth side plate 154; wherein the vertical supporting plate 140 is arranged on the fourth side plate 154, the number of the limiting supporting blocks 121 is two and is respectively arranged on the first side plate 151 and the third side plate 153, and the connecting hole 130 is arranged on the third side plate 153. The first side plate 151, the second side plate 152, the third side plate 153, and the fourth side plate 154 enclose the square frame 150 and form the receiving groove 120, wherein the protruding hole 410 of the supporting plate 400 is disposed at a side of the supporting plate 400 close to the vertical supporting plate 140, and the clamp 440 is disposed at a side of the supporting plate 400 close to the second side plate 152. So that the included angle between one end of the clamp ammeter clamped by the clamp 440 and the first wire 200 is 120 degrees. The two limit supporting blocks 121 can support the first supporting edge 420 of the supporting plate 400, so that the supporting plate is more stable.
In a preferred embodiment of the present invention, referring to fig. 5, the first side plate 151 is detachably connected to the second and fourth side plates 152 and 154, and the third side plate 153 is detachably connected to the second and fourth side plates 152 and 154. First curb plate 151, second curb plate 152, third curb plate 153, fourth curb plate 154 all connect fixedly through the mortise and tenon structural connection, and bottom plate 160 is also connected fixedly through the mortise and tenon structural connection, makes things convenient for the dismouting of base 100, and the dismouting of being convenient for is accomodate. Besides, the detachable connection can be carried out through connection modes such as buckles, inserting buckles and the like.
In a preferred embodiment of the present invention, referring to fig. 3 and 4, the bottom surface of the first supporting edge 420 and the bottom surface of the second supporting edge 430 are each provided with a block-up 460 for abutting against the bottom surface of the receiving groove 120. The block 460 may make the supporting plate 400 be better supported on the receiving groove 120 to raise the supporting plate 400, so that the user can conveniently take the supporting plate 400 to adjust the position, and the supporting plate 400 is conveniently changed into the inclined supporting state.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A clamp-on ammeter calibration device, comprising: the device comprises a base, a first lead, a second lead, a supporting plate and a detachable lead sleeve for tightly sleeving the first lead and the second lead; an inner cavity is formed in the base, an accommodating groove used for accommodating the supporting plate is formed in the upper side of the base, the supporting plate is provided with an extending hole communicated with the inner cavity, a connecting hole communicated with the inner cavity is formed in the side face of the base, and the first wire is provided with a first connecting section extending out of the connecting hole and a first extending section connected with the first connecting section; the second lead has a second protruding section; the first extending section and the second extending section are vertically arranged and extend out of the extending hole; one end of the supporting plate is provided with a first supporting edge, the other end of the supporting plate is provided with a second supporting edge, and the upper side surface of the supporting plate is provided with a clamp for clamping the pincer-shaped ammeter; the upper side surface of the base is provided with a vertical supporting plate used for being abutted against the second supporting edge, and the accommodating groove is internally provided with a limiting supporting block used for being abutted against the first supporting edge;
when the first supporting edge is abutted against the limiting supporting block and the second supporting edge is abutted against the vertical supporting plate, the upper side surface of the supporting plate and the horizontal plane form a measuring included angle.
2. The clamp ammeter calibration device of claim 1 wherein said measurement angle is in the range of 30 degrees.
3. The clamp ammeter calibration device of claim 1 wherein the clamp comprises: the device comprises a first clamping plate, a second clamping plate, a first resetting device and a second resetting device, wherein the first resetting device is used for driving the first clamping plate to approach the second clamping plate; the first clamping plate and the second clamping plate are matched to form a clamping opening for clamping the clip-on ammeter.
4. The clamp ammeter calibration device of claim 3 wherein the first clamp plate has a length dimension parallel to a length dimension of the second clamp plate; the stretching holes are strip-shaped holes extending along a first straight line direction, and the first straight line direction is parallel to the length direction of the first clamping plate.
5. The clamp ammeter calibration device of claim 4 wherein the support plate is provided with a scale extending parallel to the first linear direction.
6. The clamp ammeter calibration device of claim 1 wherein said removable wire cover has a first cover aperture for covering said first wire and a second cover aperture for covering said second wire.
7. The clamp ammeter calibration device of claim 1 wherein the base comprises a square frame and a bottom plate, the bottom plate and the square frame enclosing the inner cavity, the square frame removably connected to the bottom plate.
8. The clamp ammeter calibration device of claim 7 wherein the square frame comprises: the first side plate, the second side plate, the third side plate and the fourth side plate are connected in sequence; the head end of the first side plate is connected with the tail end of the fourth side plate; the vertical supporting plates are arranged on the fourth side plate, the number of the limiting supporting blocks is two, the limiting supporting blocks are respectively arranged on the first side plate and the third side plate, and the connecting holes are formed in the third side plate.
9. The clamp-on ammeter calibration device of claim 8 wherein said first side plate is removably attached to said second and fourth side plates and said third side plate is removably attached to said second and fourth side plates.
10. The clamp ammeter calibration device as claimed in any one of claims 1 to 9, wherein the bottom surface of the first leg and the bottom surface of the second leg are each provided with a block for abutment against the bottom surface of the receiving groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642966.1A CN114325052B (en) | 2021-12-29 | 2021-12-29 | Clamp ammeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642966.1A CN114325052B (en) | 2021-12-29 | 2021-12-29 | Clamp ammeter calibrating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114325052A true CN114325052A (en) | 2022-04-12 |
| CN114325052B CN114325052B (en) | 2023-09-15 |
Family
ID=81016749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111642966.1A Active CN114325052B (en) | 2021-12-29 | 2021-12-29 | Clamp ammeter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114325052B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206147085U (en) * | 2016-08-31 | 2017-05-03 | 山东电力设备有限公司 | Current transformer measures frock |
| CN106646308A (en) * | 2016-10-27 | 2017-05-10 | 优利德科技(中国)有限公司 | Full-automatic calibration method and calibration device for Hall clamp meter |
| CN206649145U (en) * | 2016-12-12 | 2017-11-17 | 中国航空工业集团公司成都飞机设计研究所 | Current parameters measuring apparatus calibrating installation |
| CN208283538U (en) * | 2018-05-30 | 2018-12-25 | 佛山市广电计量检测技术有限公司 | A kind of voltage-withstand test instrument correcting device |
| CN208672792U (en) * | 2018-08-31 | 2019-03-29 | 富杰 | A kind of portable type current transformer on-site calibrator |
| CN210136301U (en) * | 2019-05-09 | 2020-03-10 | 东阿县计量测试所 | Electric energy metering equipment calibrating device |
| CN210775819U (en) * | 2019-07-17 | 2020-06-16 | 广州粤能电力科技开发有限公司 | Clamp-on ammeter verification equipment and support platform |
| CN211236207U (en) * | 2019-10-15 | 2020-08-11 | 深圳市宏通检测技术有限公司 | Calibrating device for leakage current tester |
| CN212031633U (en) * | 2020-04-30 | 2020-11-27 | 朱月洁 | Current transformer calibration device |
| CN212872872U (en) * | 2020-07-01 | 2021-04-02 | 天津市计量监督检测科学研究院 | Clamp-on leakage ammeter calibrating device |
| CN213023541U (en) * | 2021-03-11 | 2021-04-20 | 江西中恒计量检测有限公司 | Novel electric energy meter calibration device |
| CN214703952U (en) * | 2021-03-22 | 2021-11-12 | 宁夏计量质量检验检测研究院 | Auxiliary calibration tool for pincerlike electrical measuring instrument |
-
2021
- 2021-12-29 CN CN202111642966.1A patent/CN114325052B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206147085U (en) * | 2016-08-31 | 2017-05-03 | 山东电力设备有限公司 | Current transformer measures frock |
| CN106646308A (en) * | 2016-10-27 | 2017-05-10 | 优利德科技(中国)有限公司 | Full-automatic calibration method and calibration device for Hall clamp meter |
| CN206649145U (en) * | 2016-12-12 | 2017-11-17 | 中国航空工业集团公司成都飞机设计研究所 | Current parameters measuring apparatus calibrating installation |
| CN208283538U (en) * | 2018-05-30 | 2018-12-25 | 佛山市广电计量检测技术有限公司 | A kind of voltage-withstand test instrument correcting device |
| CN208672792U (en) * | 2018-08-31 | 2019-03-29 | 富杰 | A kind of portable type current transformer on-site calibrator |
| CN210136301U (en) * | 2019-05-09 | 2020-03-10 | 东阿县计量测试所 | Electric energy metering equipment calibrating device |
| CN210775819U (en) * | 2019-07-17 | 2020-06-16 | 广州粤能电力科技开发有限公司 | Clamp-on ammeter verification equipment and support platform |
| CN211236207U (en) * | 2019-10-15 | 2020-08-11 | 深圳市宏通检测技术有限公司 | Calibrating device for leakage current tester |
| CN212031633U (en) * | 2020-04-30 | 2020-11-27 | 朱月洁 | Current transformer calibration device |
| CN212872872U (en) * | 2020-07-01 | 2021-04-02 | 天津市计量监督检测科学研究院 | Clamp-on leakage ammeter calibrating device |
| CN213023541U (en) * | 2021-03-11 | 2021-04-20 | 江西中恒计量检测有限公司 | Novel electric energy meter calibration device |
| CN214703952U (en) * | 2021-03-22 | 2021-11-12 | 宁夏计量质量检验检测研究院 | Auxiliary calibration tool for pincerlike electrical measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114325052B (en) | 2023-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204405731U (en) | The clamp on amperemeter that a kind of linearity is good | |
| CN210954315U (en) | High-low voltage electricity inspection comprehensive tester with primary current measurement | |
| JP2015108605A (en) | Outside short circuit testing apparatus and outside short circuit testing method | |
| CN211236207U (en) | Calibrating device for leakage current tester | |
| CN205426957U (en) | Switch equipment loop resistance subtest pole | |
| CN203443993U (en) | Electric energy metering wiring apparatus | |
| CN114325052A (en) | Clamp-on ammeter calibrating device | |
| CN107656105A (en) | Connection plug and circuit resistance tester | |
| CN112285419A (en) | Jointing clamp | |
| CN203572957U (en) | On-site meter calibration system | |
| CN213181729U (en) | Fuse tube tester | |
| CN112858940A (en) | Battery internal resistance testing positioning frame and battery internal resistance testing clamp | |
| CN108152786A (en) | Electric energy meter field examines voltage sampling method and device | |
| CN211318569U (en) | Transformer substation tripping pressure plate voltage measuring instrument | |
| CN210243801U (en) | Equivalent impedance measuring device for battery | |
| CN104698293A (en) | Multipurpose three-phase test device | |
| CN209486219U (en) | A kind of insulating tool defect detection platform | |
| CN209979817U (en) | Battery detection machine | |
| CN208580147U (en) | A kind of electric vehicle high voltage bus monitoring device | |
| CN208125876U (en) | A kind of triode Kelvin test suite | |
| KR20130114312A (en) | Inspection and correction device for charge-discharge device | |
| KR20020037346A (en) | Method for Determining Amount of Water to be Added to a NiCd Cell | |
| CN211905649U (en) | Portable fault detection case of bell-type FTU | |
| CN211478585U (en) | Four-wire system measuring device for cylindrical battery | |
| CN217060292U (en) | Battery fixing device and battery measuring instrument |
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 | ||
| CB02 | Change of applicant information |
Address after: No. 8 Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000, 150 Applicant after: Radio and TV Measurement and Testing Group Co.,Ltd. Applicant after: GRG METROLOGY & TEST (XI'AN) CO.,LTD. Address before: 511450 150, No. 8, Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. Applicant before: GRG METROLOGY & TEST (XI'AN) CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |