Medium voltage switching apparatus
US-12444559-B2 · Oct 14, 2025 · US
Isolator switch and drive apparatus for an isolator switch
US11456124B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11456124-B2 |
| Application number | US-201917264930-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2019 |
| Priority date | Jul 30, 2018 |
| Publication date | Sep 27, 2022 |
| Grant date | Sep 27, 2022 |
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- Title
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- Abstract
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Abstract
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A drive apparatus for an isolator switch includes a motor and a gear mechanism. The gear mechanism has a drive shaft which can be driven in two opposite directions of rotation by the motor and the gear mechanism has an output shaft. A load torque lock prevents transmission of a load torque which acts on the output shaft to the drive shaft in either direction of rotation. An isolator switch with a drive apparatus is also provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A drive apparatus for an isolator switch, the drive apparatus comprising: a motor; a gear mechanism, said gear mechanism having a drive shaft to be driven by said motor in two opposite rotational directions, and said gear mechanism having an output shaft; and a load torque lock preventing a transmission of a load torque acting on said output shaft to said drive shaft in either rotational direction; said load torque lock being disposed on said drive shaft between said motor and said gear mechanism or said load torque lock being disposed on said output shaft downstream of said gear mechanism. 2. The drive apparatus according to claim 1 , wherein said gear mechanism is a spur gear mechanism. 3. The drive apparatus according to claim 1 , wherein said load torque lock includes wrap springs. 4. The drive apparatus according to claim 1 , wherein said load torque lock includes clamping bodies. 5. The drive apparatus according to claim 1 , wherein said load torque lock includes clamping rollers. 6. An isolator switch, comprising a drive apparatus according to claim 1 .
Assignees
Inventors
Classifications
using spring or other flexible shaft coupling · CPC title
using dynamo-electric motor (for storing energy in a spring motor H01H3/30) · CPC title
- H01H31/16Primary
with angularly-movable bridging contact or contact-carrying member · CPC title
using bearings · CPC title
- H01H3/40Primary
using friction, toothed, or screw-and-nut gearing · CPC title
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- What does patent US11456124B2 cover?
- A drive apparatus for an isolator switch includes a motor and a gear mechanism. The gear mechanism has a drive shaft which can be driven in two opposite directions of rotation by the motor and the gear mechanism has an output shaft. A load torque lock prevents transmission of a load torque which acts on the output shaft to the drive shaft in either direction of rotation. An isolator switch with…
- Who is the assignee on this patent?
- Siemens Energy Global Gmbh & Co Kg
- What technology area does this patent fall under?
- Primary CPC classification H01H31/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 27 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).