MEDIUM VOLTAGE SWITCHGEAR CELL Russian patent published in 2013 - IPC H02B1/24 H01H33/66 

FIELD: electricity.

SUBSTANCE: medium voltage switchgear cell is made so that it can be installed between two parts of electric circuit in order to implement at least functions of current passing between these parts, current interruption between these parts, circuit decoupling and grounding. The cell contains switch (or automatic circuit breaker) (1) with vacuum breaking technology which also performs a function of disconnecting switch and selector (2) connected in-series to switch (or automatic circuit breaker) (1). Selector (2) has at least two positions respectively: current flow position and grounding position for one of circuit parts. Switch (or automatic circuit breaker) (1) is connected electrically from line side to bus and from load side to selector (2), which is connected electrically from load side with at least one cable or bus. The cell can be in three positions: closed, open and grounded positions respectively.

EFFECT: manufacturing of a cell with simple structure and optimised size of operating components which provides improvement of safety during operations of disconnection in power generation system.

13 cl, 8 dwg