CN217741312U - Open circuit protection device and mutual inductor system - Google Patents
Open circuit protection device and mutual inductor system Download PDFInfo
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- CN217741312U CN217741312U CN202221044599.5U CN202221044599U CN217741312U CN 217741312 U CN217741312 U CN 217741312U CN 202221044599 U CN202221044599 U CN 202221044599U CN 217741312 U CN217741312 U CN 217741312U
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Abstract
The utility model relates to an open circuit protection device and mutual-inductor system. The open circuit protection device comprises a mounting unit, a supporting unit and a protection unit. Wherein the support unit is adjustably provided to the mounting unit; the protection unit is detachably arranged at one end of the supporting unit, which is far away from the installation unit, and is provided with a discharge gap for open-circuit protection; wherein the discharge gap is adjustable in case the position of the support unit is adjustable. The protection device has the advantages that the width of the discharge gap arranged in the protection unit is adjusted by adjusting the position of the supporting unit relative to the mounting unit so as to meet the requirements of different standards and different accurate levels of open-circuit protection voltage; the device is arranged in a transformer system applying the guide rail type terminal by clamping the guide rail adaptive unit with a DIN guide rail for the transformer system, so that the guide rail type terminal with different connection forms can be met.
Description
Technical Field
The utility model relates to an electric power system technical field especially relates to an open circuit protection device and mutual-inductor system.
Background
The current transformer is a special transformer which converts a large current on a primary side into a small current on a secondary side according to the electromagnetic induction principle. The current transformer mainly comprises an iron core, a primary winding and a secondary winding. The primary side winding of the measuring device has few turns and is connected in series in a circuit of current to be measured.
According to the current transformer principle, the secondary circuit of the current transformer must be connected with a load or directly short-circuited, and the secondary winding is not allowed to operate in an open circuit. Under normal operating conditions, the secondary voltage is small. Once a secondary open circuit is caused by improper operation or other reasons, a high voltage will be generated between the secondary winding terminals, which in turn causes the following hazards: endanger the life safety of workers; causing damage to secondary loop measurement and protection instruments and meters; the iron core of the mutual inductor is in a saturated state, and the iron core can generate larger residual magnetism, so that the error is increased, and the measurement and charging are inaccurate; it also causes overheating of the core and damage to the main insulation.
In order to protect the safety of personnel and instruments and ensure the measuring accuracy, a secondary open-circuit protection device can be additionally arranged on the secondary winding. Some standards specify the value of the secondary open circuit protection voltage, such as the U.S. standard IEEE and the brazilian standard NBR, which require that when the open circuit voltage is greater than the peak value of 3.5kV, the open circuit protection device is added and the device needs to withstand the open circuit voltage for 1 minute without damaging the secondary circuit.
And different standards and different accurate level secondary winding's the protection voltage requirement of opening a way are different, again because the wide application of guide tracked terminal in mutual-inductor secondary terminal, consequently the utility model provides an open circuit protection device and mutual-inductor system to be applicable to the guide tracked terminal of different mode of connection, and satisfy different standards and different accurate level secondary winding's the protection voltage requirement of opening a way.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that exists among the prior art, according to the wide application of guide tracked terminal in mutual-inductor secondary terminal, provide an open circuit protection device and mutual-inductor system to be applicable to the guide tracked terminal of different mode of connection, the reinforcing is opened a way protection device's commonality, and is satisfied different standards and different accurate level secondary winding's the protection voltage requirement of opening a way.
In order to achieve the purpose, the utility model adopts the technical proposal that:
in a first aspect, the present invention provides an open circuit protection device, including:
a mounting unit;
a support unit adjustably provided to the mounting unit;
the protection unit is detachably arranged at one end, far away from the installation unit, of the supporting unit, and is provided with a discharge gap for open-circuit protection;
wherein the discharge gap is adjustable in a case where a position of the holder unit is adjustable.
As some of the embodiments, the mounting unit includes:
mounting a component;
the first mounting hole elements are distributed on the mounting elements and are used for being in adjustable connection with the supporting unit.
As some of these embodiments, the mounting unit further comprises:
and the second mounting hole elements are distributed on the mounting elements.
As some of these embodiments, the support unit comprises:
the two first supporting elements are symmetrically arranged and are respectively connected with the mounting unit in an adjustable manner;
the two second supporting elements are respectively connected with the corresponding first supporting elements, and the second supporting elements and the first supporting elements are arranged in an L shape;
the two adjusting hole elements are arranged on the corresponding first supporting elements and are used for being connected with the mounting unit in an adjustable mode;
and the third mounting hole elements are arranged on the corresponding second supporting elements and are used for being detachably connected with the protection unit.
As some of these embodiments, the protection unit comprises:
the two first protection elements are symmetrically arranged and are detachably connected with the supporting unit;
the second protection elements are detachably connected with the corresponding first protection elements and tightly abut against the supporting unit, and the discharge gap is arranged between the two second protection elements.
As some of these embodiments, the protection unit further comprises:
the first gasket elements are arranged between the first protection element and the supporting unit and are detachably connected with the first protection element and the supporting unit respectively;
the second gasket elements are arranged between the first gasket elements and the first protection elements and are detachably connected with the first gasket elements and the first protection elements respectively.
As some of these embodiments, further comprising:
the first fastening unit is detachably connected with the mounting unit and the supporting unit respectively.
As some examples thereof, the first fastening unit comprises:
the first fastening element is detachably connected with the mounting unit and the supporting unit respectively;
and the second fastening element is detachably connected with the first fastening element and abuts against the mounting unit.
As some of these embodiments, the first fastening unit further comprises:
and the third gasket elements are arranged between the second fastening element and the mounting unit and are detachably connected with the first fastening element.
As some of these embodiments, further comprising:
the guide rail adapter unit is arranged on one side, far away from the supporting unit, of the mounting unit and is detachably connected with the mounting unit.
As some of these embodiments, the rail fitting unit comprises:
a rail adapter element disposed on a side of the mounting unit remote from the support unit;
and the fourth mounting hole elements are distributed on the guide rail adapting element and are detachably connected with the mounting unit.
As some of these embodiments, further comprising:
and the second fastening unit is detachably connected with the mounting unit and the guide rail adapting unit respectively.
As some of the embodiments, the second fastening unit includes:
and the third fastening elements are detachably connected with the mounting unit and the guide rail adapting unit respectively.
As some of these embodiments, the second fastening unit further comprises:
a plurality of fourth gasket elements, which are arranged between the third fastening element and the mounting unit and detachably connected with the third fastening element;
a plurality of fifth spacer elements disposed between the fourth spacer element and the third fastening element and removably coupled to the third fastening element.
As some of these embodiments, further comprising:
and the cable unit is detachably connected with the mounting unit and the supporting unit respectively.
As some of these embodiments, further comprising:
and the partition plate units are arranged on two sides of the protection unit and connected with the mounting unit.
As some of these embodiments, the separator unit comprises:
and the two clapboard elements are symmetrically arranged at two sides of the protection unit and are connected with the mounting unit.
In a second aspect, the present invention also provides a transformer system, including:
an open circuit protection device as described in the first aspect;
and the mutual inductor device is detachably connected with the open circuit protection device.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
the utility model relates to an open circuit protection device and mutual inductor system, through adjusting the position of the support unit relative to the installation unit and then adjusting the width of the discharge gap arranged in the protection unit, so as to meet the open circuit protection voltage requirements of different standards and different accuracy levels; the device is installed in a transformer system applying the guide rail type terminal by clamping the guide rail adaptive unit with a DIN guide rail for the transformer system, and can be suitable for the guide rail type terminal with different connection forms.
Drawings
Fig. 1 is a schematic side sectional view of an open circuit protection device according to an embodiment of the present invention;
fig. 2 is a schematic side sectional view of a mounting unit according to an embodiment of the present invention;
fig. 3 is a schematic side sectional view of a support unit according to an embodiment of the present invention;
fig. 4 is a schematic side sectional view of a protection unit according to an embodiment of the present invention;
fig. 5 is a schematic side sectional view of a first fastening unit according to an embodiment of the present invention;
fig. 6 is a schematic side-sectional structure diagram of the guide rail adapting unit according to the embodiment of the present invention
Fig. 7 is a schematic side sectional view of a second fastening unit according to an embodiment of the present invention;
fig. 8 is a schematic view of connection relation of cable units according to an embodiment of the present invention;
fig. 9 is a schematic front view of an open circuit protection device according to embodiment 2 of the present invention;
fig. 10 is a schematic structural view of a separator unit according to embodiment 2 of the present invention;
fig. 11 is a schematic structural front view of an instrument transformer system according to embodiment 3 of the present invention.
Wherein the reference numbers are:
100. an open circuit protection device;
110. a mounting unit; 111. mounting a component; 112. a first mounting hole member; 113. a second mounting hole member;
120. a support unit; 121. a first support element; 122. a second support element; 123. an adjustment aperture element; 124. a third mounting hole element;
130. a protection unit; 131. a first protection element; 132. a second protection element; 133. a first shim member; 134. a second shim member;
140. a first fastening unit; 141. a first fastening element; 142. a second fastening element; 143. a third shim member;
150. a guide rail adapting unit; 151. a rail-adapting element; 152. a fourth mounting hole element;
160. a second fastening unit; 161. a third fastening element; 162. a fourth shim member; 163. a fifth shim member;
170. a cable unit;
180. a separator unit; 181. a separator element;
200. a transformer device;
A. a discharge gap.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, which are not intended to limit the present invention.
Example 1
As an exemplary embodiment of the present invention, as shown in fig. 1, an open circuit protection device 100 includes a mounting unit 110, a supporting unit 120, and a protection unit 130. Wherein the supporting unit 120 is adjustably provided to the mounting unit 110; the protection unit 130 is detachably disposed at one end of the support unit 120 away from the mounting unit 110, and the protection unit 130 is provided with a discharge gap a for open circuit protection; in the case where the position of the holder unit 120 is adjustable, the discharge gap a is adjustable.
Specifically, the open circuit protection device 100 performs open circuit protection by using the air gap discharge principle, when an open circuit occurs in a circuit loop, the open circuit voltage is very high, and the discharge gap a is set so that the open circuit high voltage is discharged through the discharge gap a, so as to protect the circuit from being damaged urgently.
Specifically, the width of the discharge gap a is related to the open-circuit voltage that the open-circuit protection device 100 can bear, and the discharge gap a can adjust the width by adjusting the position of the supporting unit 120, so that the open-circuit protection voltage requirements of different standards and different accuracy levels can be met.
As shown in fig. 2, the mounting unit 110 includes a mounting member 111 and a number of first mounting hole members 112. Wherein, a plurality of first mounting hole elements 112 are distributed on the mounting element 111 for adjustable connection with the supporting unit 120.
As some examples, a plurality of first mounting hole elements 112 are distributed in a linear array and opened on the mounting element 111.
As some of these embodiments, the first mounting hole element 112 is a through hole.
Further, the mounting unit 110 further includes a plurality of second mounting hole members 113. A plurality of second mounting hole members 113 are distributed on the mounting member 111 for detachable connection with the rail-related device/component.
As some examples, a plurality of second mounting hole elements 113 are distributed on the mounting element 111 in a linear arrangement.
As some of these embodiments, the second mounting hole member 113 is a through hole.
As shown in fig. 3, the holder unit 120 includes two first holder members 121, two second holder members 122, two adjusting hole members 123, and two third mounting hole members 124. Wherein, the two first supporting elements 121 are symmetrically arranged and are respectively connected with the mounting unit 110 in an adjustable manner; the second supporting elements 122 are respectively connected with the corresponding first supporting elements 121, and the second supporting elements 122 and the first supporting elements 121 are arranged in an L shape; the adjusting hole elements 123 are arranged on the corresponding first supporting elements 121 and are used for being adjustably connected with the mounting unit 110; the third mounting hole member 124 is provided to the corresponding second supporting member 122 for detachable connection with the protection unit 130.
In particular, the first support element 121 is adjustably connected to the mounting element 111; the adjustment aperture member 123 is detachably connected to the corresponding first mounting aperture member 112.
As some of the embodiments, the first and second supporting members 121 and 122 are integrally formed to constitute an L-shape.
As some examples, the second supporting members 122 are fixedly connected to the corresponding first supporting members 121, respectively.
As some examples, the first supporting member 121 is a metal rod with good conductivity, and the second supporting member 122 is a metal rod with good conductivity.
As some of the embodiments, the adjusting hole element 123 is a waist-shaped hole, and the length of the waist is set according to the width of the discharge gap a to be adjusted.
Specifically, the position of the detachable connection between the first mounting hole element 112 and the adjusting hole element 123 is adjusted, so as to adjust the distance between the two symmetrically arranged second supporting elements 122, and further adjust the width of the discharge gap a, so as to meet the requirements of different standards and different accuracy levels of open-circuit protection voltage.
As some examples, the third mounting hole element 124 is a through hole or a threaded hole.
As shown in fig. 4, the protection unit 130 includes two first protection elements 131 and two second protection elements 132. Wherein, the two first protection elements 131 are symmetrically arranged and detachably connected with the support unit 120; the second protection elements 132 are detachably connected to the corresponding first protection elements 131 and tightly abut against the supporting unit 120, and a discharge gap a is formed between the two second protection elements 132.
Specifically, the first protection member 131 is detachably coupled with the corresponding second holding member 122 by passing through the third mounting hole member 124; the second protection elements 132 are detachably connected to the corresponding first protection elements 131 and tightly abut against the second support elements 122, the discharge gap a is located between the two second support elements 122, and the discharge gap a is formed between the two second protection elements 132.
As some examples, the first protection element 131 is a socket head cap screw, the second protection element 132 is a hexagon nut, and the first protection element 131 and the second protection element 132 are connected by a screw.
As some examples, the second protection element 132 is a copper hexagon nut.
As some of these embodiments, the ridges of two symmetrically disposed hex nuts are aligned.
Further, the protection unit 130 further includes at least two first shim elements 133 and at least two second shim elements 134. The first gasket element 133 is disposed between the first protection element 131 and the supporting unit 120, and detachably connected to the first protection element 131 and the supporting unit 120, respectively; the second spacer element 134 is disposed between the first spacer element 133 and the first protection element 131, and detachably connected to the first spacer element 133 and the first protection element 131, respectively.
Specifically, the first gasket element 133 is disposed between the first protection element 131 and the second support element 122, and detachably connected to the first protection element 131 and the second support element 122, respectively; the second spacer element 134 is disposed between the first spacer element 133 and the first protection element 131, and detachably connected to the first spacer element 133 and the first protection element 131, respectively.
In some embodiments, the first pad element 133 is a flat pad and is sleeved on the first protection element 131.
In some embodiments, the second spacer element 134 is a spring washer and is sleeved on the first protection element 131.
In some embodiments, the second spacer element 134 is further disposed between the second protection element 132 and the second supporting element 122, and is sleeved on the first protection element 131.
In particular, first and second shim elements 133 and 134 facilitate a tight connection between first and second protective elements 131, 132 and second supporting element 122.
Further, the open circuit protection device 100 further includes a first fastening unit 140. The first fastening unit 140 is detachably connected to the mounting unit 110 and the supporting unit 120, respectively.
As shown in fig. 5, the first fastening unit 140 includes a first fastening member 141 and a second fastening member 142. Wherein, the first fastening element 141 is detachably connected with the mounting unit 110 and the supporting unit 120 respectively; the second fastening member 142 is detachably connected to the first fastening member 141 and abuts against the mounting unit 110.
Specifically, the first fastening element 141 is detachably connected with the mounting element 111 and the first supporting element 121 respectively; the second fastening member 142 abuts against the mounting member 111.
Specifically, the first fastening member 141 is detachably connected to the second fastening member 142 by passing through the adjustment hole member 123, the first mounting hole member 112, and the second fastening member 142 in this order, so as to detachably connect the first supporting member 121 and the mounting member 111.
As some examples, the first fastening member 141 is a socket head cap screw, the second fastening member 142 is a socket head cap nut, and the first fastening member 141 and the second fastening member 142 are screwed together.
Further, the first fastening unit 140 further comprises a number of third spacer elements 143. A plurality of third spacer elements 143 are disposed between the second fastening element 142 and the mounting unit 110, and detachably connected to the first fastening element 141.
Specifically, a plurality of third spacer elements 143 are disposed between the second fastening element 142 and the mounting element 111, and detachably connected to the first fastening element 141, so as to ensure tight connection between the first fastening element 141, the second fastening element 142 and the mounting element 111.
In some embodiments, a third gasket member 143 is disposed between the second fastening member 142 and the mounting member 111, and the third gasket member 143 is disposed on the first fastening member 141.
As some of these embodiments, the third spacer element 143 is a flat pad.
Further, the open circuit protection device 100 further includes a rail adapter unit 150, and the rail adapter unit 150 is disposed on a side of the mounting unit 110 away from the support unit 120 and detachably connected to the mounting unit 110.
As shown in fig. 6, the rail adapter unit 150 includes a rail adapter element 151 and a number of fourth mounting hole elements 152. Wherein the rail-adapting element 151 is arranged at a side of the mounting unit 110 remote from the support unit 120; a plurality of fourth mounting hole members 152 are distributed on the rail-fitting member 151 and detachably connected to the mounting unit 110.
Specifically, the rail adapter element 151 is disposed on a side of the mounting element 111 away from the first supporting element 121, and is detachably connected to the mounting element 111; the fourth plurality of mounting hole members 152 are detachably coupled to the second plurality of mounting hole members 113.
Specifically, the utility model discloses be applied to the circuit of taking guide tracked terminal, can dismantle through with guide rail adapter element 151 and guide rail and be connected, applicable in the guide tracked terminal of different wiring forms, the commonality is strong.
As some of these embodiments, the rail adapter element 151 is a rail adapter.
As some of these embodiments, the fourth mounting hole element 152 is a threaded hole.
Further, the open circuit protection device 100 further includes a second fastening unit 160. The second fastening unit 160 is detachably connected to the mounting unit 110 and the rail fitting unit 150, respectively.
As shown in fig. 7, the second fastening unit 160 includes a third fastening member 161. The third fastening member 161 is detachably connected to the mounting unit 110 and the rail fitting unit 150, respectively.
Specifically, the third fastening element 161 is detachably connected with the mounting element 111 and the rail adapter element 151, respectively.
More specifically, the third fastening member 161 is detachably coupled to the second and fourth mounting hole members 113 and 152, respectively.
More specifically, the third fastening member 161 is detachably connected to the fourth mounting hole member 152 through the second mounting hole member 113, so as to detachably connect the mounting member 111 and the rail adapter member 151.
As some examples thereof, the third fastening element 161 is a socket head cap screw.
Further, the second fastening unit 160 further includes a fourth and fifth spacer member 162 and 163. Wherein, the fourth gasket member 162 is disposed between the third fastening member 161 and the mounting unit 110, and detachably connected to the third fastening member 161; the fifth spacer element 163 is disposed between the fourth spacer element 162 and the third fastening element 161, and is detachably connected to the third fastening element 161.
Specifically, the fourth spacer member 162 is disposed between the third fastening member 161 and the mounting member 111, and is detachably connected to the third fastening member 161.
In some embodiments, the fourth pad member 162 is a flat pad and is sleeved on the third fastening member 161.
As some examples, the fifth pad member 163 is an elastic pad and is sleeved on the third fastening member 161.
In particular, the tight connection of the rail adapter element 151 to the mounting element 111 is achieved by means of a fourth shim element 162 and a fifth shim element 163.
Further, the open circuit protection device 100 further includes a cable unit 170, and the cable unit 170 is detachably connected to the mounting unit 110 and the supporting unit 120, respectively.
As shown in fig. 8, the cable unit 170 is detachably connected to the mounting member 111 and the first supporting member 121, respectively.
Specifically, the cable unit 170 is detachably connected to the mounting member 111 and the first supporting member 121 by being detachably connected to the first fastening member 141.
The utility model discloses a working process and principle as follows:
1. the rail adapter element 151 and the mounting element 111 are connected by the third fastening element 161, the fourth mounting hole element 152, while a tight connection is achieved by the fourth shim element 162 and the fifth shim element 163;
2. the second supporting element 122 and the second protecting element 132 are connected through the first protecting element 131 and the third mounting hole element 124, and are tightly connected through the first gasket element 133 and the second gasket element 134, a discharge gap a is formed between two symmetrically arranged second protecting elements 132 and is located between the two second supporting elements 122, the second protecting element 132 and the corresponding second supporting element 122 act synchronously, when the relative position between the two second supporting elements 122 is changed, the relative position between the two second protecting elements 132 is also changed correspondingly, so that the width of the discharge gap a is changed;
3. the cable unit 170, the mounting member 111, and the first supporting member 121 are mounted, but not fastened, by the first fastening member 141, the adjustment hole member 123, the first mounting hole member 112, the second fastening member 142, and the third gasket member 143;
then, according to the required width of the discharge gap a, the position of the connection between the adjusting hole element 123 and the first mounting hole element 112 is adjusted, so that the first supporting element 121 drives the second supporting element 122 to drive the second protection element 132 to act, and the discharge gap a between the two second protection elements 132 meets the requirement;
finally, the first fastening element 141 and the second fastening element 142 are fastened to fix the mounting element 111 and the first supporting element 121 relative to each other, and the cable unit 170 is electrically connected to the first supporting element 121, the second supporting element 122 and the second protecting element 132;
4. the rail adapter 151 is clamped on a DIN rail of a circuit to be protected, so as to realize open circuit protection of the circuit.
The utility model has the advantages that the width of the discharge gap arranged in the protection unit is adjusted by adjusting the position of the support unit relative to the installation unit, so as to meet the requirements of open circuit protection voltage of different standards and different accuracy levels; the device is arranged in a circuit applying the guide rail type terminal by clamping the guide rail adaptive unit with a DIN guide rail of the circuit, and the guide rail type terminal with different connection forms can be met.
Example 2
This embodiment is a modification of embodiment 1. The present embodiment is different from embodiment 1 in that: the open circuit protection device 100 is structurally different.
As shown in fig. 9, the open circuit protection device 100 further includes a partition unit 180, and the partition unit 180 is disposed at both sides of the protection unit 130 and connected to the mounting unit 110.
Specifically, when a plurality of circuit elements need to be protected, a plurality of open-circuit protection devices 100 are provided as needed, and two adjacent open-circuit protection devices 100 are isolated by the partition plate unit 180, so that mutual influence is avoided.
As shown in fig. 10, the barrier unit 180 includes two barrier members 181, and the two barrier members 181 are symmetrically disposed at both sides of the protection unit 130 and connected to the mounting unit 110.
Specifically, the two partition members 181 are fixedly connected to the mounting members 111, respectively.
The advantage of this embodiment is that compared to embodiment 1, the present embodiment has a partition unit to prevent the open-circuit voltage from being influenced by the external environment or influencing the external environment when the discharge gap discharges.
Example 3
This example is an application of examples 1 to 2.
As shown in fig. 11, an instrument transformer system includes an open circuit protection device 100 and an instrument transformer device 200 according to embodiments 1 to 2. Wherein the transformer apparatus 200 is detachably connected to the open circuit protection apparatus 100.
Specifically, the secondary winding in the transformer apparatus 200 is connected with the cable unit 170 of the open circuit protection apparatus 100.
Specifically, the DIN rail in the transformer apparatus 200 is clamped with the rail fitting unit 150.
Specifically, the number of the open-circuit protection devices 100 is set according to the number of the secondary windings in the transformer device 200, and when the partition unit 180 prevents the discharge gap a in the protection unit 130 of a certain open-circuit protection device 100 from performing open-circuit protection, the secondary windings corresponding to the remaining open-circuit protection devices 100 are affected; while preventing the remaining components of the transformer from affecting the open circuit protection device 100.
The embodiment has the advantages that by applying the open circuit protection devices in the embodiments 1 to 2 to the transformer device, the width of the discharge gap can be adjusted according to the required standard and the accurate open circuit protection voltage requirement, and the secondary circuit of the transformer device is effectively protected.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious changes made from the description and drawings should be included within the scope of the present invention.
Claims (10)
1. An open circuit protection device, comprising:
a mounting unit;
a support unit adjustably provided to the mounting unit;
the protection unit is detachably arranged at one end, far away from the installation unit, of the supporting unit, and is provided with a discharge gap for open-circuit protection;
wherein the discharge gap is adjustable in a case where a position of the supporting unit is adjustable.
2. The open circuit protection device according to claim 1, wherein the mounting unit comprises:
mounting a component;
the first mounting hole elements are distributed on the mounting elements and are used for being in adjustable connection with the supporting unit; and/or
The support unit includes:
the two first supporting elements are symmetrically arranged and are respectively connected with the mounting unit in an adjustable way;
the two second supporting elements are respectively connected with the corresponding first supporting elements, and the second supporting elements and the first supporting elements are arranged in an L shape;
the two adjusting hole elements are arranged on the corresponding first supporting elements and are used for being connected with the mounting unit in an adjustable mode;
the two third mounting hole elements are arranged on the corresponding second supporting elements and are used for being detachably connected with the protection unit; and/or
The protection unit includes:
the two first protection elements are symmetrically arranged and are detachably connected with the supporting unit;
the second protection elements are detachably connected with the corresponding first protection elements and tightly abut against the supporting unit, and the discharge gap is arranged between the two second protection elements.
3. The open circuit protection device according to claim 2, wherein the protection unit further comprises:
the first gasket elements are arranged between the first protection element and the supporting unit and are detachably connected with the first protection element and the supporting unit respectively;
the second gasket elements are arranged between the first gasket elements and the first protection elements and are detachably connected with the first gasket elements and the first protection elements respectively.
4. The open circuit protection device of claim 1, further comprising:
the first fastening unit is detachably connected with the mounting unit and the supporting unit respectively; and/or
The guide rail adapting unit is arranged on one side of the mounting unit, which is far away from the supporting unit, and is detachably connected with the mounting unit; and/or
The cable unit is detachably connected with the mounting unit and the supporting unit respectively; and/or
And the partition plate units are arranged on two sides of the protection unit and connected with the mounting unit.
5. The open circuit protection device according to claim 4, wherein the first fastening unit comprises:
the first fastening elements are detachably connected with the mounting unit and the supporting unit respectively;
the second fastening elements are detachably connected with the first fastening elements and abut against the mounting unit; and/or
The guide rail adapting unit includes:
a rail adapter element disposed on a side of the mounting unit remote from the support unit;
the plurality of fourth mounting hole elements are distributed on the guide rail adapting element and are detachably connected with the mounting unit; and/or
The partition unit includes:
and the two clapboard elements are symmetrically arranged at two sides of the protection unit and are connected with the mounting unit.
6. The open circuit protection device according to claim 5, wherein the first fastening unit further comprises:
and the third gasket elements are arranged between the second fastening element and the mounting unit and are detachably connected with the first fastening element.
7. The open circuit protection device of claim 4, further comprising:
and the second fastening unit is detachably connected with the mounting unit and the guide rail adapting unit respectively.
8. The open circuit protection device of claim 7, wherein the mounting unit further comprises:
the second fastening units are detachably connected with the first fastening units; and/or
The second fastening unit includes:
and the third fastening elements are detachably connected with the mounting unit and the guide rail adapting unit respectively.
9. The open circuit protection device of claim 8, wherein the second fastening unit further comprises:
a plurality of fourth gasket elements, which are arranged between the third fastening element and the mounting unit and detachably connected with the third fastening element;
and the fifth gasket elements are arranged between the fourth gasket elements and the third fastening elements and are detachably connected with the third fastening elements.
10. A transformer system, comprising:
an open circuit protection device according to any one of claims 1 to 9;
and the mutual inductor device is detachably connected with the open circuit protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221044599.5U CN217741312U (en) | 2022-04-30 | 2022-04-30 | Open circuit protection device and mutual inductor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221044599.5U CN217741312U (en) | 2022-04-30 | 2022-04-30 | Open circuit protection device and mutual inductor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217741312U true CN217741312U (en) | 2022-11-04 |
Family
ID=83818363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221044599.5U Active CN217741312U (en) | 2022-04-30 | 2022-04-30 | Open circuit protection device and mutual inductor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217741312U (en) |
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2022
- 2022-04-30 CN CN202221044599.5U patent/CN217741312U/en active Active
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