MULTI-PHASE METAL-ENCLOSED, PRESSURE GAS-INSULATED SWITCHING DEVICE FOR HIGH VOLTAGE SWITCHGEAR

摘要

1. Multi-phase, metal-encapsulated, high-pressure-insulated switching device for high-voltage switchgears, which is inserted into the course of a bus bar system and provided with a switching point (7, 8, 9) provided for each phase of a branch in angular form, where each switching point (7, 8, 9) has two contact components (7a, 7b, 8a, 8b) establishing an isolating gap in the switch-off position and whose high-voltage-carrying contact components have the smallest diameter in the region of the isolating gap, and wherein in the same metal encapsulation (2), for each phase of the bus bar system, a terminal conductor (19, 20, 21), connecting the conductors of the phase of the bus bar system, is led, transversely to the axis of at least one other switching point (7, 8, 9) at a distance therefrom, to a lead-through insulator in the metal encapsulation and leading to the bus bar conductor characterised in that the isolating gaps of the switching points (7, 8, 9) are arranged in two different planes lying at right angles to their axes, and that the terminal conductors are directed past the switching point or the other switching points (7, 8, 9) as the case may be, only in the region of the isolating gap and the conductors of the phases of the bus bar system, which are arranged on both sides of the metal encapsulation (2), are so connected to one another, that the phases are arranged so as to be mutually rotated by 180 degrees.