Disconnector RVR-20/8000; RVRZ-20/8000
Disconnectors RVR-20/8000; RVRZ-20/8000 are designed to turn on and off de-energized sections of an electrical circuit that are energized, as well as ground the disconnected sections using built-in grounding switches.
Structurally, vertical-chopping type disconnectors are manufactured in a single-pole design.
RVR disconnectors are manufactured without a grounding conductor, RVRZ - with a grounding switches on the detachable or permanent contact side.
Disconnectors RVR, RVRZ consist of a base (frame), support insulators, contact system, traction insulator and grounding conductors. On the disconnector frame there is a drive shaft with levers designed for operating contact knives. If there are grounding switches, one or two shafts are additionally installed in the base to control them, as well as a mechanical lock that prevents the grounding switches from turning on when the main knives are switched on and vice versa. The disconnector insulation consists of support and traction insulators. The contact system of the disconnector consists of copper fixed contacts and movable contact knives. To reduce the turning-off and turning-on torques on the disconnector shafts, a mechanism is used to relieve contact pressure, which consists of a cam and a locking mechanism. Grounding switches consist of a copper bus mounted on steel posts, which are welded to the rotary shaft of the grounding switch. When the grounding switch is turned on, the busbar enters the lamellas installed on the lower shelves of the fixed contacts. Contact pressure in the axial and detachable contacts of the main knives and lamella contacts of the grounding conductors is carried out by springs.
Disconnectors RVR-20/8000; RVRZ-20/8000 are manufactured in climatic version U, placement category 3 according to GOST 15150 and GOST 15543, with:
- altitude above sea level no more than 1000 m;
- upper operating value of ambient air temperature plus 40 ˚С;
- lower operating value of ambient air temperature minus 45 ˚С;
- ambient air humidity 80% at a temperature of plus 20 ˚С
Technical data
| Rated voltage, kV | 20 |
| Rated insulation level, kV | 24 |
| Rated current, A | 8000 |
| Thermal resistance current, kA | 100 |
| Electrodynamic resistance current, kA | 250 |
| Mechanical wear resistance, cycles | 2000 |
| Climatic design and placement category GOST 15150 | U3 |
We offer you documentation for the manufacture of disconnectors RVR-20/8000; RVRZ-20/8000:
- Preliminary technical documentation for participation in tenders for the manufacture of disconnectors RVR-20/8000; RVRZ-20/8000. We will prepare for you the necessary information to assess the possibility of manufacturing products in accordance with the requirements of tender documentation and questionnaires.
- Working drawings, 3-D models, and other necessary documentation for the manufacture of disconnectors RVR-20/8000; RVRZ-20/8000 at your enterprise. If you do not plan to independently manufacture components and parts of the product, we will help you place their production at third-party enterprises. General assembly of the product and installation will be carried out at your enterprise.
- All documentation, if necessary, is adjusted in accordance with the requirements of the project, as well as in accordance with the technological capabilities of your enterprise.
- If equipment from another manufacturer is installed at the substation, we will prepare for you documentation for the manufacture of similar equipment in addition to the installed one
Advantages of working with us:
- You do not need to employ highly qualified engineers - You receive a set of documentation for the product being manufactured, which can be operated by a semi-skilled engineer.
- You do not need to manufacture prototypes of products - our experience allows us to successfully launch serial batches of products for production.
- Working according to our documentation - your specialists will receive advice on all the nuances of manufacturing RVR-20/8000; RVRZ-20/8000.
For additional information on disconnectors RVR-20/8000; RVRZ-20/8000, please contact: This email address is being protected from spambots. You need JavaScript enabled to view it.
... and, as you know, a mistake made during the design of a product results in 10-fold costs during manufacturing, and 100-fold during its operation...
