DEVICE FOR SECTIONING AIR AND CABLE LINES FOR 35 kV POWER SUPPLY SYSTEMS Russian patent published in 2010 - IPC H02B13/00 

FIELD: electricity.

SUBSTANCE: device is represented as unit container having high-voltage compartment (A) where vacuum switch (4), pressure relief valve (11), measuring current transformers (14), measuring voltage transformers (13), in-house transformer (12) are installed. Telemechanics and relay protection devices (2) are installed inside control compartment (B). The following equipment is installed on the rood of unit container: overvoltage restrictors (8), horizontal swinging type breakers (7) having their blades (main and grounding) arranged so that they can be actuated from the drive (3). Input contact of vacuum switch (4) is coupled with one of breakers through restrictors (8) and bushing insulator 9. Output contact of vacuum switch (4) is connected with the other breaker (7) through measuring current transformers (14), voltage transformers (13), in-house transformers (12) and overvoltage restrictors (8) connected sequentially.

EFFECT: simplified design, improved comfort of maintenance, protection from unauthorised access and reduced material consumption and prime cost.

3 cl, 2 dwg