CN209247864U - Split-core type meter - Google Patents
Split-core type meter Download PDFInfo
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- CN209247864U CN209247864U CN201821842524.5U CN201821842524U CN209247864U CN 209247864 U CN209247864 U CN 209247864U CN 201821842524 U CN201821842524 U CN 201821842524U CN 209247864 U CN209247864 U CN 209247864U
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Abstract
The utility model provides a kind of split-core type meter, is related to wireline inspection technical field, and split-core type meter provided by the utility model includes caliper and the clamping device on caliper, and clamping device is for clamping route.Split-core type meter provided by the utility model can clamp route, avoid split-core type meter relative to route rotation, swing or shake, guarantee measuring point on split-core type meter with route is good contacts, accurately the electric current of route is measured, will not influence the judgement of service personnel.
Description
Technical field
The utility model relates to wireline inspection technical fields, more particularly, to a kind of split-core type meter.
Background technique
Split-core type meter is a kind of for measuring the instrument of the size of current for the electric wiring being currently running, can be the case where not powering off
Lower measurement electric current.Existing split-core type meter needs to hang on the line when in use, and in the case where weather condition is more severe, pincers
Table is rotated easily with respect to route, swings or is shaken, and is caused conductor and route on split-core type meter to be detached from, can not effectively be detected outlet
The size of current on road causes the error in judgement of service personnel.
Therefore, how providing one kind and capable of securely clamping the split-core type meter of route is that those skilled in the art's technology to be solved is asked
One of topic.
Utility model content
The purpose of this utility model is to provide a kind of split-core type meters, can clamp to route, avoid split-core type meter relative to line
Road rotation swings or shakes, and guarantees that the measuring point on split-core type meter accurately measures the electric current of route with good contact of route,
It will not influence the judgement of service personnel.
To achieve the above object, the utility model the following technical schemes are provided:
The utility model provides a kind of split-core type meter, the clamping device including caliper and on the caliper, the clamping machine
Structure is for clamping route.
Further, the clamping device includes two clamp assemblies for being respectively used to clamp route, along the route
Extending direction, two clamp assemblies are respectively arranged on the two sides of the caliper.
Further, the clamp assemblies include the first elastic slice and the second elastic slice for clamping route, first bullet
The first end of piece is connect with the caliper, and the first end of second elastic slice is connect with the caliper.
Further, the first end of the first end of first elastic slice and second elastic slice directly with the pincers
The side surface of body connects.
Further, first elastic slice and second elastic slice are in "eight" shape structure, or are in " people " character form structure.
Further, the second end of first elastic slice is hanging, and the second end of second elastic slice is hanging.
Further, the first spring, second elastic slice and the pincers are equipped between first elastic slice and the caliper
Second spring is equipped between body.
Further, the second end of first elastic slice is connect with the caliper, the second end of second elastic slice
It is connect with the caliper.
Further, first elastic slice and second elastic slice are conductor.
It further, further include pressure regulator and mechanical switching devices or electric power switching dress for being connect with the pressure regulator
Set, the mechanical switching devices or the power switching apparatus be used for by the pressure regulator respectively with two clamp assemblies it
Between connection relationship switch over.
Further, the voltage of the 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.
Further, the mechanical switching devices include energy storage device and the telecontrol equipment that connect with the energy storage device,
The energy storage device is for driving the telecontrol equipment to move between two clamp assemblies.
Further, energy storage device includes bracing wire and the stored energy mechanism that connect with the bracing wire.
Further, the power switching apparatus includes switching switch, controller and switching command issuing side, the control
Device is connected with the switching command issuing side and switching switch respectively, and the controller is for receiving the switching command hair
The command signal of outlet sending simultaneously switches the switching switch, and the switching switch is conductor and connect with the pressure regulator.
It further, further include the insulating bar being connect with the caliper, it is close that the switching switch is set to the insulating bar
Perhaps the switching switch switchs and the folder with the caliper integrated setting or the switching for one end of the caliper
Hold mechanism integrated setting.
Further, the switching command issuing side is remote controler or timer.
Split-core type meter provided by the utility model can generate it is following the utility model has the advantages that
When stating split-core type meter in use, it will be routed through caliper first, clamping device can clamp route at this time, avoid split-core type meter
Relative to route rotation, swings or shake.
For compared with the existing technology, split-core type meter provided by the utility model has clamping device, and it is normal that this allows for split-core type meter
When hanging on route, the weight of caliper can be acted directly between clamping device and route, so that clamping device is more effective
Route is clamped, avoid split-core type meter relative to route rotation, swing or shake, guarantee split-core type meter on measuring point and route it is good
Contact, accurately the electric current of route is measured, will not influence the judgement of service personnel.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is front view when a kind of split-core type meter that the utility model embodiment one provides uses；
Fig. 2 is front view when a kind of split-core type meter that the utility model embodiment two provides uses；
Fig. 3 is front view when a kind of split-core type meter that the utility model embodiment three provides uses；
Fig. 4 is a kind of structural schematic diagram of mechanical switching devices provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of another mechanical switching devices provided by the embodiment of the utility model；
Fig. 6 is the structural schematic diagram of power switching apparatus provided by the embodiment of the utility model；
Fig. 7 is the voltage transformer high pressure side structure of the neutral-point solid ground of route provided by the embodiment of the utility model
Schematic diagram；
Fig. 8 is the voltage transformer high pressure of the grounded coil ground connection of neutral point of route provided by the embodiment of the utility model
The structural schematic diagram of side.
Icon: 1- caliper；2- clamping device；21- clamp assemblies；The first elastic slice of 211-；The second elastic slice of 212-；3-
Route；The first spring of 4-；5- second spring；6- mechanical switching devices；61- energy storage device；62- telecontrol equipment；7- electricity
Power switching device；71- switching switch；72- controller；73- switching command issuing side；8- insulating bar；9- neutral point；
10- test point.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are 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 " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Fig. 1 is front view when a kind of split-core type meter that the utility model embodiment one provides uses；Fig. 2 is that the utility model is real
Front view when a kind of split-core type meter use of the offer of example two is provided；Fig. 3 is that a kind of split-core type meter that the utility model embodiment three provides uses
When front view；Fig. 4 is a kind of structural schematic diagram of mechanical switching devices provided by the embodiment of the utility model；Fig. 5 is this reality
With the structural schematic diagram for another mechanical switching devices that new embodiment provides；Fig. 6 is provided by the embodiment of the utility model
The structural schematic diagram of power switching apparatus；Fig. 7 is the electricity of the neutral-point solid ground of route provided by the embodiment of the utility model
Press transformer high voltage side structural schematic diagram；Fig. 8 is that the grounded coil of neutral point of route provided by the embodiment of the utility model connects
The on high-tension side structural schematic diagram of the voltage transformer on ground.
The purpose of the present embodiment is that provide a kind of split-core type meter, as shown in Figures 1 to 6, including caliper 1 and it is set on caliper 1
Clamping device 2, clamping device 2 is for clamping route 3.
When stating split-core type meter in use, it will be routed through caliper first, clamping device can clamp route at this time, avoid split-core type meter
Relative to route rotation, swings or shake.
For compared with the existing technology, split-core type meter provided in this embodiment has clamping device, this allows for split-core type meter and normally hangs
When being hung on route, the weight of caliper can be acted directly between clamping device and route, so that clamping device is more effective
Route is clamped, avoids split-core type meter relative to route rotation, swing or shake, the measuring point and route on guarantee split-core type meter are good
Contact, accurately measures the electric current of route, will not influence the judgement of service personnel.
On the basis of the above embodiments, as shown in figure 4, clamping device 2 includes two folders for being respectively used to clamp route 3
Component 21 is held, along the extending direction of route 3, two clamp assemblies 21 are respectively arranged on the two sides of caliper 1.Two clamp assemblies 21
More stable route can be clamped, guarantee that above-mentioned split-core type meter is stable and route is detected.
In some embodiments, as shown in Figure 1 to Figure 3, in order to enable the structure of clamp assemblies 21 is more simple, clamping
Component 21 includes the first elastic slice 211 and the second elastic slice 212 for clamping route 3, the first end and caliper of the first elastic slice 211
1 connection, the first end of the second elastic slice 212 are connect with caliper 1.
Along the extending direction of route 3, the width of the first elastic slice 211 and the second elastic slice 212 all can be 2-5cm.Specifically
Ground, the width of the first elastic slice 211 can be 2cm, 3cm, 4cm, 5cm, the width of the second elastic slice 212 can for 2cm, 3cm, 4cm,
5cm.In at least one embodiment, the width of the first elastic slice 211 and the second elastic slice 212 is 3cm.
When in use, since above-mentioned split-core type meter is to hang on route 3, and route is located in clamping space 4, therefore the first elastic slice
211 and second elastic slice 212 be located at the top of route 3, since the first elastic slice 211 and the second elastic slice 212 are flexible bullet
Property part, and the effect by 1 gravity of caliper, route 3 can be directly located between the first elastic slice 211 and the second elastic slice 212, be avoided
Split-core type meter relative to route rotation, swing or shakes when detection.
Specifically, it sets, two clamp assemblies 21 are respectively the first clamp assemblies and the second clamp assemblies.By taking Fig. 4 as an example
It is specifically described, the direction towards Fig. 4, caliper 1 each side has a side, wherein the first clamp assemblies and pincers
The left side of body 1 connects, and the second clamp assemblies are connect with the right side of caliper 1.Wherein the first elastic slice in the first clamp assemblies
211 and second the first end of elastic slice 212 directly connect with the left side of caliper 1, the first elastic slice in the second clamp assemblies
211 and second the first end of elastic slice 212 directly connect with the right side of caliper 1.
It is different according to the structure of clamp assemblies 21, it can specifically be divided into following three embodiments:
Embodiment one:
In the present embodiment one, as shown in Figure 1, connection, the second elastic slice 212 of the first elastic slice 211 and caliper 1 for convenience
With the connection of caliper 1, the first end of the first end of the first elastic slice 211 and the second elastic slice 212 directly with the side table of caliper 1
Face connection, facilitates the installation of the first elastic slice 211 and the second elastic slice 212.
In the present embodiment one, as shown in Figure 1, the first elastic slice 211 and the second elastic slice 212 can with 1 side surface of caliper
Top connection.
In the present embodiment one, as shown in Figure 1, the first elastic slice 211 and the second elastic slice 212 are in " people " character form structure.Make
Used time, route 3 are located in the bottom end of " people " character form structure, and the first elastic slice 211 and the second elastic slice 212 can be effectively to routes 3
It is clamped.
In the present embodiment one, the first elastic slice 211 and the second elastic slice 212 can also be in "eight" shape structure.
In the present embodiment one, as shown in Figure 1, the second end of the first elastic slice 211 is hanging, the second of the second elastic slice 212
End is hanging.When route 3 is located between the first elastic slice 211 and the second elastic slice 212, the first elastic slice 211 and the second elastic slice 212
Certain elastic deformation can occur.Above-mentioned setting enable to the first elastic slice 211 and the second elastic slice 212 more effectively to route into
Row clamps.
Embodiment two:
In the present embodiment two, as shown in Fig. 2, connection, the second elastic slice 212 of the first elastic slice 211 and caliper 1 for convenience
With the connection of caliper 1, the first end of the first end of the first elastic slice 211 and the second elastic slice 212 directly with the side table of caliper 1
Face connection, facilitates the installation of the first elastic slice 211 and the second elastic slice 212.
In the present embodiment two, as shown in Fig. 2, the first elastic slice 211 and the second elastic slice 212 can with 1 side surface of caliper
Top connection.
In the present embodiment two, as shown in Fig. 2, being equipped with the first spring 4, the second elastic slice between the first elastic slice 211 and caliper 1
Second spring 5 is equipped between 212 and caliper 1.When above-mentioned split-core type meter is hung on route 3, the first spring 4 and second spring 5 are divided
The first elastic slice 211 and the second elastic slice 212 are not resisted, guarantee that the first spring 4 and second spring 5 effectively clamp route 3.
In the present embodiment two, as shown in Fig. 2, the first elastic slice 211 and the second elastic slice 212 are in " people " character form structure.Make
Used time, route 3 are located in the bottom end of " people " character form structure, and the first elastic slice 211 and the second elastic slice 212 can be effectively to routes 3
It is clamped.
In the present embodiment two, the first elastic slice 211 and the second elastic slice 212 can also be in "eight" shape structure.
In the present embodiment two, as shown in Fig. 2, the second end of the first elastic slice 211 is hanging, the second of the second elastic slice 212
End is hanging.When route 3 is located between the first elastic slice 211 and the second elastic slice 212, the first elastic slice 211 and the second elastic slice 212
Certain elastic deformation can occur.Above-mentioned setting enable to the first elastic slice 211 and the second elastic slice 212 more effectively to route into
Row clamps.
Embodiment three:
In the present embodiment three, as shown in figure 3, connection, the second elastic slice 212 of the first elastic slice 211 and caliper 1 for convenience
With the connection of caliper 1, the first end of the first end of the first elastic slice 211 and the second elastic slice 212 directly with the side table of caliper 1
Face connection, facilitates the installation of the first elastic slice 211 and the second elastic slice 212.
In the present embodiment three, as shown in figure 3, the first elastic slice 211 and the second elastic slice 212 can with 1 side surface of caliper
Top connection.
In the present embodiment four, as shown in figure 3, the first elastic slice 211 and the second elastic slice 212 are in " people " character form structure.Make
Used time, route 3 are located in the bottom end of " people " character form structure, and the first elastic slice 211 and the second elastic slice 212 can be effectively to routes 3
It is clamped.
In the present embodiment three, the first elastic slice 211 and the second elastic slice 212 can also be in "eight" shape structure.
In the present embodiment three, as shown in figure 3, the second end of the first elastic slice 211 is connect with caliper 1, the second elastic slice 212
The second end connect with caliper 1.
In some embodiments, the electric current of route is measured for convenience, the first elastic slice 211 and the second elastic slice 212
It is conductor.
Specifically, above-mentioned split-core type meter further includes pressure regulator, the first elastic slice 211 and the second elastic slice 212 also by switching device with
Pressure regulator electrical connection, pressure regulator ground connection.Assuming that line fault is in the right side of caliper 1, when detecting to route, pressure regulator
Voltage is provided for route, the clamp assemblies 21 on right side are attached by switching device with pressure regulator, then faulty line, the right side at this time
Side clamping device 2 and pressure regulator constitute a circuit, the electric current that electric current measured by split-core type meter is passed through by faulty route；With
The clamp assemblies 21 in left side are attached with pressure regulator by switching device afterwards, then fault-free route, left side clamping at this time
Mechanism 2, electroscope and pressure regulator constitute a circuit, the electric current that electric current measured by split-core type meter is passed through by trouble-free route,
By the size of two electric currents compare i.e. knowable which side route be faulty line.
It should be noted that the voltage of pressure regulator is U, the frequency of pressure regulator 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 9 is directly grounded, the value of any one phase inductance, i.e. in Fig. 7
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 9 ground connection, appoint
Anticipate the sum of the value of a phase inductance and neutral earthing compensator inductance, i.e. in Fig. 8 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 7 and Figure 8, the point that test point 10 is contacted by route with two clamp assemblies 21.
Wherein, the material of the first elastic slice 211 and the second elastic slice 212 can be aluminium, or copper.
Specifically, switching device can be divided into 7 liang of classes of mechanical switching devices 6 or power switching apparatus, mechanical switching devices 6
Or power switching apparatus 7 is for switching over connection relationship of the pressure regulator respectively between two clamp assemblies 21.Setting, two
A clamp assemblies 21 are respectively the first clamp assemblies and the second clamp assemblies, when pressure regulator is connect with the first clamp assemblies, machine
Tool switching device 6 or power switching apparatus 7 cancel the connection of pressure regulator and the second clamp assemblies；When pressure regulator and the second clamping group
When part connects, the connection of mechanical switching devices 6 or power switching apparatus 7 cancellation pressure regulator and the first clamp assemblies.
On the basis of the above embodiments, mechanical switching devices 6 include energy storage device 61 and connect with energy storage device 61
Telecontrol equipment 62, energy storage device 61 is for driving telecontrol equipment 62 to move between two clamp assemblies 21.
Wherein, energy storage device 61 can be clockwork spring or spring, specifically, energy storage device 61 may include bracing wire and with it is described
The stored energy mechanism of bracing wire connection.Specifically in use, bracing wire is pulled, stored energy mechanism carries out energy storage.Wherein, stored energy mechanism can
Think clockwork spring, the end connection of bracing wire and clockwork spring, when pulling bracing wire, clockwork spring is converted by nature to winding state, has one
Fixed elastic potential energy, elastic potential energy driving telecontrol equipment 62 move between two clamp assemblies 21.
In further embodiments, energy storage device 61 can not also include bracing wire, move to directly drive telecontrol equipment 62
Motor.
Telecontrol equipment 62 can for eccentric stiffener, gear and rack teeth mechanism, slider-crank mechanism or other will rotation conversion
Be in line the mechanism of movement, the combination of telecontrol equipment 62 or above several mechanisms, such as following several implementations:
Mode one:
As shown in figure 4, energy storage device 61 is scroll spring, telecontrol equipment 62 is eccentric wheel, and eccentric wheel is conductive and can be straight
It connects and is electrically connected with pressure regulator, the inner ring end connection of eccentric wheel and scroll spring.When initial position, scroll spring is in accumulation of energy shape
State has the rotation trend for restoring reset condition.Scroll spring band movable eccentric wheel rotates in the detection process, distance on eccentric wheel
The farther away one end of its pivot center can successively contact two clamp assemblies 21, realize the inspection to faulty line and fault-free route
It surveys.
Mode two:
As shown in figure 5, energy storage device 61 is scroll spring, telecontrol equipment 62 includes gear and the rack gear engaged with gear,
Rack gear is conductive and can directly be electrically connected with pressure regulator.The connection of the inner ring end of gear and scroll spring.When initial position, scrollwork
Spring is in energy accumulating state, has the rotation trend for restoring reset condition.Scroll spring band moving gear rotates in the detection process,
Rack gear is moving between two clamp assemblies 21 under the drive of gear, realizes the detection to faulty line and fault-free route.
As shown in fig. 6, power switching apparatus 7 includes switching switch when mechanical switching devices 6 are power switching apparatus 7
71, controller 72 and switching command issuing side 73, controller 72 are connect with switching command issuing side 73 and switching switch 71 respectively,
Controller 72 is used to receive the command signal of the sending of switching command issuing side 73 and switches switching switch 71, and switching switch 71 is to lead
Body and for being connect with pressure regulator.
Specifically, switching switch 71 has the first station and second station, when switching switch 71 is in the first station, with
One clamp assemblies 21 connects, and when switching switch 71 is in second station, connect with another clamp assemblies 21.
Above-mentioned split-core type meter further includes the insulating bar 8 connecting with caliper 1, and switching switch 71 is set to insulating bar 8 close to the one of caliper 1
End perhaps switches switch 71 and 1 integrated setting of caliper or switching switch 71 and 2 integrated setting of clamping device.
In some embodiments, switching switch 71 can be set to one end on insulating bar 8 close to caliper 1, switch switch 71
It can be connect by conducting wire between two clamp assemblies 21.
In further embodiments, switching switch 71 can be with 1 integrated setting of caliper.The integrated setting refers to, cuts
Change the inside that switch 71 is set to caliper 1, and the processing, production jointly of caliper 1, do not need individually will switching switch 71 is external is clamping
On clamping device 2 on body 1.
In some other embodiments, switching switch 71 can be with 2 integrated setting of clamping device.The integrated setting is
Refer to, the connection status for switching direct switching and two clamp assemblies 21 each time of switching switch 71 does not need between the two
It is attached by conducting wire.
Wherein, order issuing side can be the device that remote controler or timer etc. can issue command signal, such as with
Under several implementations:
Mode one:
Switching command issuing side 73 is remote controler, and remote controler is connect with 72 signal of controller, on remote controler there is switching to press
Button can press switching push button when service personnel needs to switch route, and remote controler issues switching command, control to controller 72
Control switching switch switches over after device 72 processed receives switching command, realizes the detection to faulty line and fault-free route.
Mode two:
Switching command issuing side 73 is timer, and timer can be arranged directly on caliper 1, timer and controller 72
Signal connection, when detecting to faulty circuit or healthy circuit, timer starts timing, reaches timer when the time
When preset threshold value, timer issues switching command to controller 72, and controller 72 controls switching after receiving switching command
Switch 71 switches over, and realizes the detection to faulty line and fault-free route.It should be noted that timer and controller
It can be replaced by other structures, such as single-chip microcontroller.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (16)
1. a kind of split-core type meter, which is characterized in that including caliper (1) and the clamping device (2) being set on the caliper (1), the folder
Mechanism (2) are held for clamping route.
2. split-core type meter according to claim 1, which is characterized in that the clamping device (2) includes two and is respectively used to clamp
The clamp assemblies (21) of route (3), along the extending direction of the route (3), two clamp assemblies (21) are respectively arranged on
The two sides of the caliper (1).
3. split-core type meter according to claim 2, which is characterized in that the clamp assemblies (21) include for clamping route (3)
The first elastic slice (211) and the second elastic slice (212), the first end of first elastic slice (211) connect with the caliper (1),
The first end of second elastic slice (212) is connect with the caliper (1).
4. split-core type meter according to claim 3, which is characterized in that the first end of first elastic slice (211) and described
The first end of two elastic slices (212) is directly connect with the side surface of the caliper (1).
5. split-core type meter according to claim 3, which is characterized in that first elastic slice (211) and second elastic slice (212)
It in "eight" shape structure, or is in " people " character form structure.
6. split-core type meter according to claim 5, which is characterized in that the second end of first elastic slice (211) is hanging, described
The second end of second elastic slice (212) is hanging.
7. split-core type meter according to claim 6, which is characterized in that set between first elastic slice (211) and the caliper (1)
Have the first spring (4), is equipped with second spring (5) between second elastic slice (212) and the caliper (1).
8. split-core type meter according to claim 5, which is characterized in that the second end and the pincers of first elastic slice (211)
Body (1) connection, the second end of second elastic slice (212) are connect with the caliper (1).
9. according to the described in any item split-core type meters of claim 3-8, which is characterized in that first elastic slice (211) and described second
Elastic slice (212) is conductor.
10. split-core type meter according to claim 9, which is characterized in that further include pressure regulator and for being connect with the pressure regulator
Mechanical switching devices (6) or power switching apparatus (7), the mechanical switching devices (6) or the power switching apparatus (7) are used
It is switched in by connection relationship of the pressure regulator respectively between two clamp assemblies (21).
11. split-core type meter according to claim 10, which is characterized in that the voltage of the pressure regulator is U, the frequency of the pressure regulator
Rate 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 that neutral point (9) 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 (9), the sum of the value of any one phase inductance and neutral earthing compensator inductance.
12. split-core type meter according to claim 10, which is characterized in that the mechanical switching devices (6) include energy storage device
(61) and with the energy storage device (61) telecontrol equipment (62) connecting, the energy storage device (61) is for driving the sportswear
(62) are set to move between two clamp assemblies (21).
13. split-core type meter according to claim 12, which is characterized in that energy storage device (61) includes bracing wire and connects with the bracing wire
The stored energy mechanism connect.
14. split-core type meter according to claim 10, which is characterized in that the power switching apparatus (7) includes switching switch
(71), controller (72) and switching command issuing side (73), the controller (72) respectively with the switching command issuing side
(73) and switching switch (71) connection, the controller (72) are used to receive what the switching command issuing side (73) issued
Command signal simultaneously switches the switching switch (71), and the switching switch (71) is conductor and connect with the pressure regulator.
15. split-core type meter according to claim 14, which is characterized in that further include the insulating bar being connect with the caliper (1)
(8), the switching switch (71) is set to the insulating bar (8) close to the one end of the caliper (1) or switching switch
(71) (71) and the clamping device (2) integrated setting are switched with the caliper (1) integrated setting or the switching.
16. split-core type meter according to claim 14, which is characterized in that the switching command issuing side (73) be remote controler or
Timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842524.5U CN209247864U (en) | 2018-11-08 | 2018-11-08 | Split-core type meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842524.5U CN209247864U (en) | 2018-11-08 | 2018-11-08 | Split-core type meter |
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| CN209247864U true CN209247864U (en) | 2019-08-13 |
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| CN201821842524.5U Active CN209247864U (en) | 2018-11-08 | 2018-11-08 | Split-core type meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740565A (en) * | 2021-08-11 | 2021-12-03 | 孙浙峰 | Flexible extension formula lightning protection safety inspection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740565A (en) * | 2021-08-11 | 2021-12-03 | 孙浙峰 | Flexible extension formula lightning protection safety inspection device |
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