CN212934462U - Novel high-voltage on-load operation isolating switch - Google Patents
Novel high-voltage on-load operation isolating switch Download PDFInfo
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- CN212934462U CN212934462U CN202022076736.0U CN202022076736U CN212934462U CN 212934462 U CN212934462 U CN 212934462U CN 202022076736 U CN202022076736 U CN 202022076736U CN 212934462 U CN212934462 U CN 212934462U
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Abstract
The utility model relates to an isolator technical field indicates a novel high pressure area carries operation isolator especially, contains: the isolating switch comprises an isolating switch body, a transmission assembly and a handle, wherein a first terminal assembly, a movable terminal, a second terminal and a terminal bracket are arranged inside the isolating switch body; the transmission rod penetrates through the transmission box to be connected with the terminal bracket, the top end of the transmission rod is connected with the handle, the movable terminal is arranged on the terminal bracket, the upper portion of the movable terminal is in contact connection with the first terminal assembly, the lower portion of the movable terminal is in contact connection with the second terminal, and the first terminal assembly is provided with a fuse. The utility model discloses can replace general circuit breaker, have simple structure, with low costs, divide the power big, even still can divide behind the contact adhesion to divide the characteristics of big current more than 50KA, area load operation.
Description
Technical Field
The utility model relates to an isolator technical field indicates a novel high pressure area carries operation isolator especially.
Background
With the increasing of the depth and the breadth of development and utilization of new energy such as wind energy, solar energy and the like, the voltage of a DC-AC grid-connected conversion power supply is also developed to 1500VDC from the original 1000 VDC; the AC side evolves from 690VAC to 800 VAC. Under such voltage conditions, a circuit breaker is generally used as a switching device of the circuit. However, the existing circuit breaker has the defects of high cost, low breaking force, incapability of breaking current after the contact is adhered, incapability of carrying operation and the like. And the general isolating switch does not have the function of breaking the overcurrent protection of the large current of more than 50 KA.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a novel high voltage load operation isolation switch, which has a breaking fuse, and can replace a general breaker, and has the advantages of simple structure, low cost, large breaking force, and capability of breaking large current and loading operation even after the contact is adhered.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a novel high pressure area carries operation isolator which characterized in that, novel high pressure area carries operation isolator contains: the isolating switch comprises an isolating switch body, a transmission assembly and a handle, wherein a first terminal assembly, a movable terminal, a second terminal and a terminal bracket are arranged inside the isolating switch body;
the transmission rod penetrates through the transmission box to be connected with the terminal bracket, the top end of the transmission rod is connected with the handle, the movable terminal is arranged on the terminal bracket, the upper part of the movable terminal is in contact connection with the first terminal assembly, the lower part of the movable terminal is in contact connection with the second terminal, and the first terminal assembly is provided with a fuse;
novel high voltage area carries operation isolator still includes the female terminal of arranging of connection, the female terminal setting of arranging of connection is in the bottom of isolator body, female terminal and second terminal electric connection of arranging of connection.
Further, novel high pressure area carries operation isolator still is including setting up the upper cover on isolator body top, the transfer line is worn to establish according to the preface on upper cover, transmission case, the terminal support.
Further, the number of the first terminal assemblies is 3.
Further, the first terminal assembly is composed of two first terminals arranged side by side.
The beneficial effects of the utility model reside in that:
the utility model discloses contain: the isolating switch comprises an isolating switch body, a transmission assembly and a handle, wherein a first terminal assembly, a movable terminal, a second terminal and a terminal bracket are arranged inside the isolating switch body; the first terminal assembly is provided with a fuse; the novel high-voltage on-load operation isolating switch also comprises a connecting bus bar terminal; the utility model is composed of the isolating switch and the fuse, and has the advantages of low cost, large breaking force, repeated use, live operation and the like; has double protection functions of short circuit and overload.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the inside of the isolating switch body of the present invention.
Fig. 3 is a partial enlarged view of fig. 2 at a.
The reference numbers illustrate: 1. a handle; 2. an upper cover; 3. an isolation switch body; 4. connecting a busbar terminal; 5. a first terminal assembly; 6. a transmission rod; 7. a transmission case; 8. a terminal holder; 9. a movable terminal; 10. a second terminal.
Detailed Description
Referring to fig. 1-3, the present invention relates to a novel high voltage on-load operation isolation switch, which comprises: the isolating switch comprises an isolating switch body 3, a transmission assembly and a handle 1, wherein a first terminal assembly 5, a movable terminal 9, a second terminal 10 and a terminal bracket 8 are arranged inside the isolating switch body 3, and the transmission assembly comprises a transmission box 7 and a transmission rod 6 which are arranged in the isolating switch body 3;
the driving rod 6 penetrates through the driving box 7 to be connected with the terminal bracket 8, the top end of the driving rod 6 is connected with the handle 1, the movable terminal 9 is arranged on the terminal bracket 8, the upper part of the movable terminal 9 is in contact connection with the first terminal assembly 5, the lower part of the movable terminal 9 is in contact connection with the second terminal 10, and the first terminal assembly 5 is provided with a fuse which has the advantages of simple structure, low cost, large breaking force (up to 1500VDC152KA-230KA L/R ═ 1-3mS) and the like;
the novel high-voltage on-load operation isolating switch further comprises a connecting bus bar terminal 4, the connecting bus bar terminal 4 is arranged at the bottom of the isolating switch body 3, and the connecting bus bar terminal 4 is electrically connected with the second terminal 10;
in the above scheme, the utility model adopts the isolating switch capable of operating with load, and the circuit breaker composed of the isolating switch and the fuse has the advantages of low cost, large breaking force, repeated use and the like; the utility model discloses a load fuse protection on-load operation can realize 800VAC 800A's circuit protection.
In this embodiment, novel high pressure area carries operation isolator still including setting up upper cover 2 on the 3 tops of isolator body, transfer line 6 wears to establish according to the preface on upper cover 2, transmission case 7, the terminal support 8.
In the present embodiment, the number of the first terminal assemblies 5 is 3.
In the present embodiment, the first terminal assembly 5 is composed of two first terminals arranged side by side.
Instructions for use:
1. the handle 1 is rotated 90 degrees anticlockwise to release the connection between the movable terminal 9 and the first terminal and the second terminal 10 (the handle 1 can make the terminal bracket 8 move along the length direction of the utility model through the transmission rod 6, and then drive the movable terminal 9 to move along the length direction of the utility model, thereby the movable terminal 9 is connected or disconnected with the first terminal and the second terminal 10;
2. then the handle 1 is rotated 90 degrees anticlockwise, and the connection with the transmission rod 6 is released; the fuse can be pulled out by opening the upper cover 2;
3. after the fuse is replaced, the upper cover 2 is installed, the handle 1 is rotated by 90 degrees clockwise, and the connection between the handle 1 and the transmission rod 6 is restored; and rotating the movable terminal 9 clockwise by 90 degrees again to restore the connection between the movable terminal 9 and the first and second terminals 10.
According to the above operation instruction, the utility model discloses simple structure, the change fuse that can relax realizes using repeatedly of isolator body 3, drive assembly and handle 1, saves the cost.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (4)
1. The utility model provides a novel high pressure area carries operation isolator which characterized in that, novel high pressure area carries operation isolator contains: the isolating switch comprises an isolating switch body, a transmission assembly and a handle, wherein a first terminal assembly, a movable terminal, a second terminal and a terminal bracket are arranged inside the isolating switch body;
the transmission rod penetrates through the transmission box to be connected with the terminal bracket, the top end of the transmission rod is connected with the handle, the movable terminal is arranged on the terminal bracket, the upper part of the movable terminal is in contact connection with the first terminal assembly, the lower part of the movable terminal is in contact connection with the second terminal, and the first terminal assembly is provided with a fuse;
novel high voltage area carries operation isolator still includes the female terminal of arranging of connection, the female terminal setting of arranging of connection is in the bottom of isolator body, female terminal and second terminal electric connection of arranging of connection.
2. The novel high-voltage on-load operation isolating switch as claimed in claim 1, further comprising an upper cover disposed on the top end of the isolating switch body, wherein the transmission rod sequentially penetrates through the upper cover, the transmission case and the terminal bracket.
3. The novel high-voltage on-load operation isolating switch as claimed in claim 2, wherein the number of the first terminal assemblies is 3.
4. A novel high voltage on-load operation disconnector according to claim 3, characterized in that said first terminal assembly is composed of two first terminals arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076736.0U CN212934462U (en) | 2020-09-21 | 2020-09-21 | Novel high-voltage on-load operation isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076736.0U CN212934462U (en) | 2020-09-21 | 2020-09-21 | Novel high-voltage on-load operation isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934462U true CN212934462U (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022076736.0U Active CN212934462U (en) | 2020-09-21 | 2020-09-21 | Novel high-voltage on-load operation isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934462U (en) |
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2020
- 2020-09-21 CN CN202022076736.0U patent/CN212934462U/en active Active
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