Disconnector suitable for line de-icing and power system

Abstract

The utility model relates to power system technical field provides a disconnecting switch and power system suitable for line ice melting, include: support, post insulator, set up on the support, including first insulator and two second insulator at first insulator both sides, second insulator is rotatably connected with the support, moving contact, be connected on second insulator and can rotate with second insulator, static contact, be connected on first insulator, static contact has two contact points, two contact points are located on the movement path of two moving contact respectively, make moving contact can contact with contact point and with static contact electric connection, drive mechanism is suitable for driving second insulator rotation. Such setting, only through three post insulator support, and reduced switch quantity, realized the simplification of structure, reduced cost, in addition, still can conveniently realize two phase short circuit, need not to dismount copper bar again, improved the flexibility of operation, reduced construction difficulty, ensured construction efficiency.

Claims

1. A disconnector suitable for line de-icing, characterized in that, include: Frame (10); The post insulator (20) is erected on the support (10) and includes a first insulator (21) and two second insulators (22) located on both sides of the first insulator (21). The second insulators (22) are rotatably connected to the support (10). The moving contact (30) is connected to the second insulator (22) and can rotate with the second insulator (22); A stationary contact (40) is connected to the first insulator (21); the stationary contact (40) has two contacts, which are located on the movement paths of the two moving contacts (30) respectively, so that the moving contacts (30) can contact the contacts and be electrically connected to the stationary contact (40); The drive mechanism (50) is adapted to drive the second insulator (22) to rotate.

2. The disconnector suitable for line de-icing according to claim 1, characterized in that, The drive mechanism (50) includes: The tray (51) is rotatably connected to the bracket (10), and the bottom end of the second insulator (22) is fixedly connected to the tray (51); The driving component (52) is fixedly connected to the bottom of the bracket (10); The transmission component (53) is a transmission connection between the drive component (52) and the tray (51), and is adapted to convert the driving force of the drive component (52) into the rotational motion of the tray (51).

3. The disconnector suitable for line de-icing according to claim 2, characterized in that, The drive unit (52) is a rotary drive unit (52) and its output shaft (520) is parallel to the rotation shaft of the tray (51); The transmission component (53) includes: The first arm (530) has a first end connected to the tray (51) and a second end extending radially along the tray (51); The second arm (531) has a first end connected to the output shaft (520) and a second end extending radially along the output shaft (520); The transmission rod (532) is hinged at one end to the second end of the first arm (530) and at the other end to the second end of the second arm (531).

4. The disconnector suitable for line de-icing according to claim 1, characterized in that, One end of the moving contact (30) is fixedly connected to the second insulator (22), and the other end extends radially along the second insulator (22) as a cantilever structure; and / or, The stationary contact (40) is arranged radially along the second insulator (22) and extends at both ends from both sides of the second insulator (22) to form two contact points.

5. The disconnector suitable for line de-icing according to any one of claims 1 to 4, characterized in that, The moving contact (30) and the contact point form an embedded electrical connection through a fitting structure.

6. The disconnector suitable for line de-icing according to claim 5, characterized in that, The fitting structure includes a male terminal (31) and a female terminal (41) that can be elastically opened; The male terminal (31) is located on one of the moving contact (30) and the contact, and the female terminal (41) is located on the other of the moving contact (30) and the contact.

7. The disconnector suitable for line de-icing according to claim 6, characterized in that, The moving contact (30) includes two metal plates arranged side by side and alternately; One end of the two metal plates is fixedly connected to the second insulator (22), and the moving contact (30) is fixedly connected to the end of the two metal plates away from the second insulator (22).

8. The disconnecting switch for line de-icing according to claim 1, characterized in that, It also includes a terminal block (60) connected to the top of the post insulator (20); The terminal block (60) is electrically connected to the moving contact (30) or stationary contact (40) on the post insulator (20).

9. The disconnecting switch for line de-icing according to claim 1, characterized in that, The support (10) includes: The column (11) is provided with at least two columns, and multiple columns (11) are arranged side by side and alternately. A crossbeam (12) is arranged along the arrangement direction of the column (11) and fixedly connected to the top of the column (11); three post insulators (20) are connected to the crossbeam (12) and arranged alternately along the length direction of the crossbeam (12).

10. A power system characterized by, Includes three-phase lines and disconnect switches as described in any one of claims 1-9 for line de-icing; The three-phase lines are respectively erected on the three post insulators (20) and electrically connected to the stationary contact (40) or the moving contact (30) on the post insulators (20).

Images