HIGH-VOLTAGE APPARATUS COMPLEX Russian patent published in 2007 - IPC H01H33/00 

FIELD: electrical engineering.

SUBSTANCE: proposed high-voltage apparatus complex designed for use in supply mains at voltage of 35 kV and higher has at least one disconnecting switch incorporating frame, insulating columns with main current-carrying blades, fixed contacts, and contact leads, operating mechanisms for controlling at least one insulating column with current-carrying blades, ground electrodes with frame-mounted operating mechanisms and relevant fixed contacts on insulating columns, circuit breaker, and current transformer; at least one rotary insulating column is assembled of two support insulators, each mounting top and bottom current-carrying blades; distance from bottom current-carrying blade to grounded frame is chosen for given voltage class to be not shorter than phase-to-ground distance and distance from top current-carrying blade to bottom one, not shorter than distance between disconnecting-switch pole contacts; rotary columns carrying top and bottom current-carrying blades are controlled by at least one operating mechanism. Frame can mount minimum three grounding blades, two at one insulating column with contact leads and at least one, at other column. One of ground electrodes at insulating column is of at least phase-to-ground length and other one installed at same insulating column is of at least two phase-to-ground lengths. Support insulators of each column can be mounted one on top of other. Circuit breaker can be used as fixed insulating column of disconnecting switch. Current transformer can be used as one of support insulators for rotary insulating column.

EFFECT: simplified switchgear design, reduced number of apparatuses and space requirement for apparatus complex and for switchgear as a whole.

7 cl, 7 dwg