CN109239441A - Split-core type meter loop switch device and split-core type meter - Google Patents

Split-core type meter loop switch device and split-core type meter Download PDF

Info

Publication number
CN109239441A
CN109239441A CN201811330334.XA CN201811330334A CN109239441A CN 109239441 A CN109239441 A CN 109239441A CN 201811330334 A CN201811330334 A CN 201811330334A CN 109239441 A CN109239441 A CN 109239441A
Authority
CN
China
Prior art keywords
split
core type
type meter
conductor
switch device
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.)
Pending
Application number
CN201811330334.XA
Other languages
Chinese (zh)
Inventor
罗显泉
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.)
Guangdong Power Grid Co Ltd
Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Shaoguan Power Supply Bureau Guangdong Power Grid 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 Guangdong Power Grid Co Ltd, Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN201811330334.XA priority Critical patent/CN109239441A/en
Publication of CN109239441A publication Critical patent/CN109239441A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

The present invention provides a kind of split-core type meter loop switch device and split-core type meters, it is related to wireline inspection technical field, split-core type meter loop switch device provided by the invention includes stored energy mechanism and the movement mechanism that connect with stored energy mechanism, movement mechanism is at least partially conductor, stored energy mechanism is connect with motion switch mechanism with one in left conductor and right conductor for driving movement mechanism to move between left conductor and right conductor.Movement mechanism in split-core type meter loop switch device provided by the invention can be switched by stored energy mechanism and movement mechanism connect with some contact, without by split-core type meter from route or eminence removes manual switching circuit, the detection of easy access personnel, raising detection efficiency.

Description

Split-core type meter loop switch device and split-core type meter
Technical field
The present invention relates to wireline inspection technical fields, more particularly, to a kind of split-core type meter loop switch device and split-core type meter.
Background technique
When power circuit breaks down, common method is to shake survey with megger.The result that megger shakes survey can only judge the section Whether route is faulty, but cannot judge in which orientation.
Above-mentioned function may be implemented using two points of principles.On the line by split-core type meter suspension, it which is provided with left conductor and the right side led Body, left conductor and right conductor can be connect with pressure regulator respectively by switching switch, applied voltage on conducting wire, measured with split-core type meter The fault current size of hitch point two sides, it can judge the orientation of failure.But existing split-core type meter needs manual switching circuit It is just capable of measuring the fault current size of hitch point two sides, the detection of personnel not easy to overhaul influences detection efficiency.
Therefore, the split-core type meter loop switch device and split-core type meter for how providing a kind of easy access personnel detection are art technologies One of personnel's technical problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of split-core type meter loop switch device and split-core type meters, can pass through stored energy mechanism and movement Mechanism switching circuit, it is not necessary that split-core type meter to be removed to manual switching circuit from route, the detection of easy access personnel improves detection effect Rate.
To achieve the above object, the present invention the following technical schemes are provided:
In a first aspect, the present invention provides a kind of split-core type meter loop switch device, including stored energy mechanism and with the stored energy mechanism The movement mechanism of connection, the movement mechanism are at least partially conductor, and the stored energy mechanism is for driving the movement mechanism It moves between left conductor and right conductor, is connect with switching the movement mechanism with one in left conductor and right conductor.
Further, the stored energy mechanism is power energy storage mechanism or machinery energy storage mechanism.
Further, the movement mechanism is reciprocating moving mechanism or intermittent movement mechanism.
Further, the stored energy mechanism includes bracing wire and the energy storing members that connect with the bracing wire, and the bracing wire is for drawing The energy storing members are moved, so that the energy storing members generate elastic deformation.
Further, the energy storing members are clockwork spring.
Further, the movement mechanism includes driving link and driven member, and the driving link is connect with the stored energy mechanism, The driven member and the driving link are sequentially connected, and can under the driving of the driving link between left conductor and right conductor Movement.
Further, the driving link includes gear, the driven member be the rack gear engaged with the gear or not exclusively Gear.
Further, the driving link includes screw rod, the driven member include be set in sleeve outside the screw rod and With the changer lever of the sleeve connection, the sleeve is connect with the screw flight.
Further, the movement mechanism includes the eccentric wheel connecting with the stored energy mechanism.
Second aspect, the present invention also provides any in a kind of split-core type meter, including caliper, left conductor, right conductor and first aspect Split-core type meter loop switch device described in kind, the left conductor and the right conductor are set on the caliper.
Further, the cross section of the left conductor and the right conductor is arc, and the left conductor and the right side Conductor extends each along the extending direction of route.
Further, the split-core type meter further includes pressure regulator, and the pressure regulator is connect with the split-core type meter loop switch device, institute The voltage for stating pressure regulator is U, and the frequency of the pressure regulator is f, and the two meets simultaneously:
2 π fL >, 2 Ω;
U/2 π fL < 0.3mA;
Wherein, L be route on, in the voltage transformer of neutral-point solid ground, the value of any one phase inductance;Or route On, in the voltage transformer of the grounded coil ground connection of neutral point, the sum of the value of any one phase inductance and neutral earthing compensator inductance.
Split-core type meter loop switch device and split-core type meter provided by the invention can generate it is following the utility model has the advantages that
Setting, left conductor are located at the left side of hitch point, and right conductor is located at the right side of hitch point.Split-core type meter circuit is stated in use When switching device, stored energy mechanism can automatic traction movement mechanism moved between left conductor and right conductor.When movement mechanism with When left conductor contacts, movement mechanism is free of conductors with the right side, can detect at this time to the route in left side;When movement mechanism and the right side When conductor contacts, movement mechanism is free of conductors with a left side, can detect at this time to the route on right side.
Movement mechanism energy for compared with the existing technology, in the split-core type meter loop switch device of first aspect present invention offer Enough connect by stored energy mechanism and movement mechanism switching with some contact, without by split-core type meter from route or eminence is removed manually Switching circuit, the detection of easy access personnel improve detection efficiency.
For compared with the existing technology, the split-core type meter that second aspect of the present invention provides is convenient to examine line conduction state The split-core type meter loop switch device surveyed, and provided with first aspect present invention, thus the pincers provided with first aspect present invention All beneficial effects possessed by table loop switch device.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for split-core type meter loop switch device that the embodiment of the present invention one provides;
Fig. 2 is a kind of structural schematic diagram of split-core type meter loop switch device provided by Embodiment 2 of the present invention;
Fig. 3 is a kind of structural schematic diagram for split-core type meter loop switch device that the embodiment of the present invention three provides;
Fig. 4 is the voltage transformer high-pressure side structural representation of the neutral-point solid ground of route provided in an embodiment of the present invention Figure;
Fig. 5 is that the voltage transformer of the grounded coil ground connection of neutral point of route provided in an embodiment of the present invention is on high-tension side Structural schematic diagram.
Icon: 1- stored energy mechanism;11- bracing wire;12- energy storing members;2- movement mechanism;21- driving link;211- tooth Wheel;212- screw rod;22- driven member;221- rack gear;222- sleeve;223- changer lever;23- eccentric wheel;The left conductor of 3-; The right conductor of 4-;5- pressure regulator;6- neutral point;7- test point;8- insulating bar.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is a kind of structural schematic diagram for split-core type meter loop switch device that the embodiment of the present invention one provides;Fig. 2 is the present invention A kind of structural schematic diagram for split-core type meter loop switch device that embodiment two provides;Fig. 3 is one kind that the embodiment of the present invention three provides The structural schematic diagram of split-core type meter loop switch device;Fig. 4 is the electricity of the neutral-point solid ground of route provided in an embodiment of the present invention Press transformer high voltage side structural schematic diagram;Fig. 5 is the grounded coil ground connection of neutral point of route provided in an embodiment of the present invention The on high-tension side structural schematic diagram of voltage transformer.
The embodiment of first aspect present invention provides a kind of split-core type meter loop switch device, as shown in Figure 1 to Figure 3, including storage Energy mechanism 1 and the movement mechanism 2 connecting with stored energy mechanism 1, movement mechanism 2 are at least partially conductor, and stored energy mechanism 1 is for driving Dynamic movement mechanism 2 moves between left conductor 3 and right conductor 4, with one in motion switch mechanism 2 and left conductor 3 and right conductor 4 A connection.
Setting, left conductor are located at the left side of hitch point, and right conductor is located at the right side of hitch point.Split-core type meter circuit is stated in use When switching device, stored energy mechanism can automatic traction movement mechanism moved between left conductor and right conductor.When movement mechanism with When left conductor contacts, movement mechanism is free of conductors with the right side, can detect at this time to the route in left side;When movement mechanism and the right side When conductor contacts, movement mechanism is free of conductors with a left side, can detect at this time to the route on right side.
Fortune for compared with the existing technology, in the split-core type meter loop switch device of the embodiment offer of first aspect present invention Motivation structure can be connect by stored energy mechanism and movement mechanism switching with some contact, be not necessarily to split-core type meter from route or eminence Manual switching circuit is removed, the detection of easy access personnel improves detection efficiency.
It should be noted that stored energy mechanism 1 is power energy storage mechanism or machinery energy storage mechanism.Wherein, power energy storage mechanism It can be battery, solar battery etc..
In some embodiments, when stored energy mechanism 1 is machinery energy storage mechanism, stored energy mechanism 1 may include 11 He of bracing wire The energy storing members 12 connecting with bracing wire 11, bracing wire 11 is for pulling energy storing members 12, so that energy storing members 12 generate elastic deformation.Specifically exist In use process, bracing wire 11 is pulled, energy storing members 12 generate elastic deformation, to have certain elastic potential energy, the elastic potential energy Driving movement mechanism 2 moves between left conductor and right conductor.
Wherein energy storing members 12 are clockwork spring, and clockwork spring includes scroll spring and the shaft that connect with scroll spring inner ring end, drawing Line 11 is wrapped in shaft, and after pulling bracing wire 11, shaft rotates, to drive scroll spring that elastic deformation, scrollwork occurs Spring has certain elastic potential energy, and elastic potential energy driving movement mechanism 2 moves between left conductor and right conductor.
Specifically, energy storing members 12 further include restriction component matched with clockwork spring, and working principle is similar to mechanical clock, energy The elastic potential energy of enough energy storage and the speed release clockwork spring according to setting.
In further embodiments, stored energy mechanism 1 may also be only clockwork spring, and clockwork spring includes scroll spring and and scroll spring The shaft of inner ring end connection.When in use, service personnel directly can make scroll spring that elastic deformation occur by rotating shaft, To drive movement mechanism 2 to move between left conductor and right conductor.
Alternatively, stored energy mechanism 1 may be the motor for directly driving the movement of movement mechanism 2, the positive and negative rotation for passing through motor is real Now switching back and forth.
It should be noted that movement mechanism 2 is reciprocating moving mechanism or intermittent movement mechanism.Such as: movement mechanism 2 Including partial gear and the rack gear engaged with partial gear, perhaps movement mechanism 2 includes that ratchet or movement mechanism 2 wrap Include cam.
It is different according to the structure of movement mechanism 2, it can specifically be divided into following three embodiments:
Embodiment one:
In the present embodiment one, movement mechanism 2 includes driving link 21 and driven member 22, and driving link 21 is connect with stored energy mechanism 1, Driven member 22 and driving link 21 are sequentially connected, and can move between left conductor and right conductor under the driving of driving link 21. When in use, stored energy mechanism 1 drives driving link 21 to rotate, and driven member 22 is used to convert the rotation of driving link 21 to straight line and transport It is dynamic.
In the present embodiment one, as shown in Figure 1, driving link 21 includes gear 211, driven member 22 includes engaging with gear 211 Rack gear 221 or partial gear, rack gear or partial gear are conductor.With stored energy mechanism 1 be clockwork spring, driven member 22 is rack gear It is specifically described for 221.The connection of the inner ring end of gear and scroll spring.The shaft on scroll spring is rotated, so that whirlpool Coil spring is in energy accumulating state.Scroll spring band moving gear rotates in the detection process, and rack gear is led under the drive of gear on a left side It is moved between body and right conductor, realization detects the route of hitch point two sides.
In the present embodiment one, it should be noted that it includes support base, stored energy mechanism 1 that above-mentioned split-core type meter loop switch device, which is protected, It is set in support base with movement mechanism 2.Guide rail is set on support base, rack gear 221 is slidably connected with guide rail.
Embodiment two:
In the present embodiment two, movement mechanism 2 includes driving link 21 and driven member 22, and driving link 21 is connect with stored energy mechanism 1, Driven member 22 and driving link 21 are sequentially connected, and can move between left conductor and right conductor under the driving of driving link 21. When in use, stored energy mechanism 1 drives driving link 21 to rotate, and driven member 22 is used to convert the rotation of driving link 21 to straight line and transport It is dynamic.
In the present embodiment two, as shown in Fig. 2, driving link 21 includes screw rod 212, driven member 22 includes being set in screw rod 212 External sleeve 222 and the changer lever 223 connect with sleeve 222, sleeve 222 are threadedly coupled with screw rod 212, and sleeve 222 and Changer lever 223 is conductor.It is specifically described so that stored energy mechanism 1 is clockwork spring as an example.The inner ring end of screw rod 212 and scroll spring Connection.The shaft on scroll spring is rotated, so that scroll spring is in energy accumulating state.Scroll spring drives spiral shell in the detection process Bar 212 rotates, and sleeve 222 is moving between left conductor and right conductor under the drive of screw rod 212, realizes to hitch point two sides Route is detected.
In the present embodiment two, it should be noted that it includes support base, stored energy mechanism 1 that above-mentioned split-core type meter loop switch device, which is protected, It is set in support base with movement mechanism 2.Guide rail is set on support base, sleeve 222 is slidably connected with guide rail.
Embodiment three:
In the present embodiment three, as shown in figure 3, movement mechanism 2 includes the eccentric wheel 23 connecting with stored energy mechanism 1, and eccentric Wheel is conductor.It is specifically described so that stored energy mechanism 1 is clockwork spring as an example.The connection of the inner ring end of eccentric wheel and scroll spring.Turn Shaft on dynamic scroll spring, so that scroll spring is in energy accumulating state.Scroll spring band movable eccentric wheel 23 in the detection process It rotates, can successively contact left conductor and right conductor apart from the farther away one end of its pivot center on eccentric wheel 23, realize to hitch point The route of two sides is detected.
In the present embodiment three, it should be noted that it includes support base, stored energy mechanism 1 that above-mentioned split-core type meter loop switch device, which is protected, It is set in support base with movement mechanism 2.Eccentric wheel 23 and support base are rotatablely connected.
The embodiment of second aspect of the present invention provides a kind of split-core type meter, the split-core type meter packet that the embodiment of second aspect of the present invention provides Caliper, left conductor 3, right conductor 4 and above-mentioned split-core type meter loop switch device are included, left conductor 3 and right conductor 4 are set on caliper.
For compared with the existing technology, the split-core type meter that the embodiment of second aspect of the present invention provides is convenient to line conduction state The split-core type meter loop switch device for being detected, and being provided with first aspect present invention, to be mentioned with first aspect present invention All beneficial effects possessed by the split-core type meter loop switch device of confession.
It being specifically described by taking Fig. 1 as an example, the direction towards Fig. 1, caliper each side has a side, wherein Left conductor 3 is connect with the left side of caliper 1, and right conductor 4 is connect with the right side of caliper.
In some embodiments, the cross section of left conductor 3 and right conductor 4 is arc, and left conductor 3 and right conductor 4 are equal Extend along the extending direction of route.
In at least one embodiment, the cross section of left conductor 3 and right conductor 4 is arc-shaped.
Specifically, in order to be more convenient the storage of above-mentioned split-core type meter, development length can be 1cm, 2cm, 3cm, 4cm etc..For On the line, development length can be the longer length such as 5cm, 10cm, 15cm, 20cm for the suspension for enabling split-core type meter stable Degree.
On the basis of the above embodiments, split-core type meter further includes insulating bar 8, and insulating bar 8 is connect with caliper, when in use, can Caliper is hung to route with hand-held insulating bar 8, enables left conductor 3 and right conductor 4 and wiring circuit contact.
As shown in Figure 4 and Figure 5, split-core type meter further includes pressure regulator 5 and above-mentioned split-core type meter loop switch device, pressure regulator 5 and split-core type meter The connection of loop switch device, the voltage of pressure regulator 5 are U, and the frequency of the pressure regulator 5 is f, and the two meets simultaneously:
2 π fL >, 2 Ω;
U/2 π fL < 0.3mA;
Wherein, L is on route, in the voltage transformer that neutral point 6 is directly grounded, the value of any one phase inductance, i.e. in Fig. 4 The value of A phase, B phase or C phase any one inductance;Or on route, in the voltage transformer of the grounded coil of neutral point 6 ground connection, appoint Anticipate the sum of the value of a phase inductance and neutral earthing compensator inductance, i.e. in Fig. 5 A phase, B phase or C phase any one and neutral earthing compensator inductance it With.Wherein, Ω and mA is unit.
As shown in Figure 4 and Figure 5, the point that test point 7 is contacted by route with left conductor 3 or right conductor 4.
Specifically when in use, movement mechanism 2 is electrically connected with pressure regulator 5, voltage regulator operation ground connection.Pressure regulator 5 passes through switching Voltage is added on route two sides respectively by circuit, is measured by electric current of the split-core type meter to two circuits, by the size phase of two electric currents The route for comparing i.e. knowable which side is faulty line.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (12)

1. a kind of split-core type meter loop switch device, which is characterized in that connect including stored energy mechanism (1) and with the stored energy mechanism (1) Movement mechanism (2), the movement mechanism (2) at least partially conductor, the stored energy mechanism (1) is for driving the fitness machine Structure (2) moves between left conductor (3) and right conductor (4), to switch the movement mechanism (2) and left conductor (3) and right conductor (4) connection in.
2. split-core type meter loop switch device according to claim 1, which is characterized in that the stored energy mechanism (1) is electric power storage It can mechanism or machinery energy storage mechanism.
3. split-core type meter loop switch device according to claim 1, which is characterized in that the movement mechanism (2) is reciprocating Movement mechanism or intermittent movement mechanism.
4. split-core type meter loop switch device according to claim 1, which is characterized in that the stored energy mechanism (1) includes bracing wire (11) and with the bracing wire (11) energy storing members (12) connecting, the bracing wire (11) are used to pull the energy storing members (12), so that The energy storing members (12) generate elastic deformation.
5. split-core type meter loop switch device according to claim 4, which is characterized in that the energy storing members (12) are clockwork spring.
6. split-core type meter loop switch device according to claim 1, which is characterized in that the movement mechanism (2) includes actively Part (21) and driven member (22), the driving link (21) connect with the stored energy mechanism (1), the driven member (22) and the master Moving part (21) transmission connection, and can be under the driving of the driving link (21) in the left conductor (3) and the right conductor (4) Between move.
7. split-core type meter loop switch device according to claim 6, which is characterized in that the driving link (21) includes gear (211), the driven member (22) is the rack gear (221) or partial gear engaged with the gear (211).
8. split-core type meter loop switch device according to claim 6, which is characterized in that the driving link (21) includes screw rod (212), the driven member (22) includes being set in the external sleeve (222) of the screw rod (212) and connecting with the sleeve (222) The changer lever (223) connect, the sleeve (222) are threadedly coupled with the screw rod (212).
9. split-core type meter loop switch device according to claim 1, which is characterized in that the movement mechanism (2) includes and institute State the eccentric wheel (23) of stored energy mechanism (1) connection.
10. a kind of split-core type meter, which is characterized in that including caliper, left conductor (3), right conductor (4) and any one of such as claim 1-9 The split-core type meter loop switch device, the left conductor (3) and the right conductor (4) are set on the caliper.
11. split-core type meter according to claim 10, which is characterized in that the left conductor (3) and the right conductor (4) it is transversal Face is arc, and the left conductor (3) and the right conductor (4) extend each along the extending direction of route.
12. split-core type meter according to claim 10, which is characterized in that the split-core type meter further includes pressure regulator (5), the pressure regulator (5) it being connect with the split-core type meter loop switch device, the voltage of the pressure regulator (5) is U, and the frequency of the pressure regulator (5) is f, The two meets simultaneously:
2 π fL >, 2 Ω;
U/2 π fL < 0.3mA;
Wherein, L be route on, in the voltage transformer that neutral point (6) is directly grounded, the value of any one phase inductance;Or on route, In the voltage transformer of the grounded coil ground connection of neutral point (6), the sum of the value of any one phase inductance and neutral earthing compensator inductance.
CN201811330334.XA 2018-11-08 2018-11-08 Split-core type meter loop switch device and split-core type meter Pending CN109239441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811330334.XA CN109239441A (en) 2018-11-08 2018-11-08 Split-core type meter loop switch device and split-core type meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811330334.XA CN109239441A (en) 2018-11-08 2018-11-08 Split-core type meter loop switch device and split-core type meter

Publications (1)

Publication Number Publication Date
CN109239441A true CN109239441A (en) 2019-01-18

Family

ID=65077670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811330334.XA Pending CN109239441A (en) 2018-11-08 2018-11-08 Split-core type meter loop switch device and split-core type meter

Country Status (1)

Country Link
CN (1) CN109239441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109823906A (en) * 2019-01-31 2019-05-31 重庆青年职业技术学院 A kind of high-efficient automatic process units

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1447124A (en) * 2002-03-24 2003-10-08 淄博科汇电气有限公司 Method for detecting ground fault in DC system
CN103154751A (en) * 2010-10-01 2013-06-12 希尔莱特有限责任公司 Systems and methods for testing the standoff capability of an overhead power transmission line
CN104616918A (en) * 2015-02-16 2015-05-13 派森特电气有限公司 Automatic PC-level dual-power changeover switch
CN104704376A (en) * 2012-10-15 2015-06-10 大陆汽车有限公司 Method and device for measuring current flowing through switch
CN106537161A (en) * 2014-04-14 2017-03-22 功率监视器公司 Method and apparatus for cloud-based power quality monitor
CN107329050A (en) * 2017-08-18 2017-11-07 广东电网有限责任公司韶关供电局 A kind of circuitry fault detection method, detection means and detecting system
CN107831407A (en) * 2017-08-09 2018-03-23 广东电网有限责任公司韶关供电局 A kind of line fault testing device
CN209247863U (en) * 2018-11-08 2019-08-13 广东电网有限责任公司 Split-core type meter loop switch device and split-core type meter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1447124A (en) * 2002-03-24 2003-10-08 淄博科汇电气有限公司 Method for detecting ground fault in DC system
CN103154751A (en) * 2010-10-01 2013-06-12 希尔莱特有限责任公司 Systems and methods for testing the standoff capability of an overhead power transmission line
CN104704376A (en) * 2012-10-15 2015-06-10 大陆汽车有限公司 Method and device for measuring current flowing through switch
CN106537161A (en) * 2014-04-14 2017-03-22 功率监视器公司 Method and apparatus for cloud-based power quality monitor
CN104616918A (en) * 2015-02-16 2015-05-13 派森特电气有限公司 Automatic PC-level dual-power changeover switch
CN107831407A (en) * 2017-08-09 2018-03-23 广东电网有限责任公司韶关供电局 A kind of line fault testing device
CN107329050A (en) * 2017-08-18 2017-11-07 广东电网有限责任公司韶关供电局 A kind of circuitry fault detection method, detection means and detecting system
CN209247863U (en) * 2018-11-08 2019-08-13 广东电网有限责任公司 Split-core type meter loop switch device and split-core type meter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
天津大学机械制图教研室: "《机械制图》", 30 April 1980, 天津科学技术出版社, pages: 190 - 192 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109823906A (en) * 2019-01-31 2019-05-31 重庆青年职业技术学院 A kind of high-efficient automatic process units

Similar Documents

Publication Publication Date Title
CN203109949U (en) Intelligent detecting robot for connecting rod peristalsis insulator string
CN205092512U (en) Electrified change instrument of high pressure PT protective tube
CN102073003B (en) Insulation test tool for gas-insulated metal-enclosed switchgear (GIS)
CN104092273A (en) Electric vehicle driving and charging integrated control method and electric vehicle operated with same
CN103630734B (en) A kind of full voltage all-loop self-inspection condensing type electroscope
CN108695764A (en) One kind holding telescopic power cable on-bne repair device
CN103777077B (en) Wireless pincerlike phase detection device
CN203630290U (en) A voltage withstanding test device allowing three phase conversion
CN209247863U (en) Split-core type meter loop switch device and split-core type meter
CN109239441A (en) Split-core type meter loop switch device and split-core type meter
CN206194557U (en) Excellent coupling assembling of order gram
WO2021254004A1 (en) Phase-change switch
CN203365531U (en) Novel alternating-current and direct-current high-voltage electroscope
CN209387693U (en) High-voltage circuitbreaker detection interlocking switching device
CN104730361A (en) Live line insulator string detection robot crawling mechanism, robot and crawling method thereof
CN207571275U (en) A kind of electric expansion rod-type measuring battery tool
CN207050943U (en) A kind of socket durability detection device
CN113539736B (en) Switch device
CN209561276U (en) A kind of vacuum circuit breaker Split conductive clamp
CN103560428A (en) Cable tank and GIS device
CN207473078U (en) A kind of indoor type voltage transformer certificate test device
CN202651659U (en) Drainage apparatus capable of replacing isolating switch with load
CN107579471A (en) A kind of handcart switch cabinet CT rising test short-circuit devices
CN203554607U (en) Checking device
CN209247944U (en) Split-core type meter loop switch 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