Internal Installation Disconnector RVFZ 10/400-U3 I, II, III performance
Internal Installation Disconnector RVFZ 10/400-U3 I, II, III performance is designed for repeated switching and switching without load of the sections of the three-phase current circuits voltage 6 (10) kW, 50 Hz frequency, as well as earthing of disconnected areas by means of earthing knives. The disconnector DIGKF 10/400-MC I, II and III are mounted in complete transformer substations (PCTS), in single-piece chambers (SPC), and in complete distributing devices (CDD).
RVFZ 10/400-U3 I, II and III performance is a three-pole switching apparatus in the form of three current lines mounted on the same frame with a common shaft and a drive lever. The three contact knives are switched on or off simultaneously when the shaft is rotated by means of a drive.
The separation frame is a welded structure that allows the shafting of the shafts with earth-cutting knives if they are repaired or replaced.
In the design of disconnectors with grounding knives, a mechanical lock between the shaft of contact knives and the shaft of grounding knives is provided, which prevents simultaneous activation of contact and grounding knives.
RVFZ 10/400-U3 disconnectors of I, II, III performance are designed, operated and designed in the same way as the dividers of RV, and are characterized by the presence of passage insulators on the side of the hinged or detachable contacts.
The disconnection and disconnection of the disconnector and the ground knives shall be effected by a manual drive of type PR-10.
In the manual lever drive MD-10, it is possible to fix it in the set-up and disconnected position.
A 31M or 32M mechanical lock or 3B-1 electromagnetic lock are used to lock the drive.
RVFZ 10/400-U3 symbols:- R – disconnector
- V – internal installation
- F – figure through insulators
- Z – grounding knives
- 10 – rated voltage, kV
- 400 – nominal current, A
- U3 – climate performance according to GOST 15150-69
- Altitude: not more than 1,000 m.
- Ambient temperature: from -60°C to +40°C.
- Relative humidity: not more than 90% at 20°C.
- Life of switch until first major maintenance: 6000 cycles of BO.
- Duration of service: not less than 25 years.
- Disconnect: vertical or horizontal, it is also permissible to have a disconnect in the inclined plane up to 45°.
- Climatic conditions: U3 by GOST 15150-69.
- The switch and drive do not require the replacement of the parts for the whole life of the service life, subject to transportation, storage, installation and operation rules.
- Disconnector RVFZ 10/400-U3 I, II, III performance – 1 pc.
- Manual drive MD-10 – 1 pc.
- Passport – 1 pc.
- Operating instructions – 1 pc.