Fast dual power supply switching switch and switching control method

Abstract

The invention discloses a fast double-power transfer switch and a switching control method. In the prior art, true uninterruptible power supply cannot be achieved as the switching time cannot be controlled to be within a power frequency period. The fast double-power transfer switch comprises an embedded pole shell (6), wherein an operating mechanism is arranged in the embedded pole shell; the operating mechanism is connected to an operating controller (12); the operating mechanism is connected to a connecting rod I (5) or a connecting rod II (7) or is connected to the connecting rod I (5) and the connecting rod II (7); the connecting rod I is connected to a vacuum arc-extinguishing chamber I (3); the vacuum arc-extinguishing chamber I is electrically connected to a power inlet wire I (4) and a power outlet line I (2); the connecting rod II is connected to a vacuum arc-extinguishing chamber II (9); the vacuum arc-extinguishing chamber II is electrically connected to a power inlet wire II (10) and a power outlet line II (8). An insulated solid sealing material (11) is poured in the embedded pole shell. The fast double-power transfer switch and the switching control method can be used for fast double-power transfer of important occasions which need continuous power supply.

Description

Technical field: [0001] The invention relates to an automatic switching device for dual power supply of a smart grid, in particular to a fast dual power switching switch and a switching control method. Background technique: [0002] With the advancement of science and technology, industrial production and people's lives have higher and higher requirements for the continuity and reliability of power supply systems. Due to the increasing operating load of the power grid, more and more line faults are caused. Therefore, for important users such as airports, firefighting, hospitals, military facilities, and large-scale event venues, dual power supplies (main and standby two independent power supplies) are required. ) for its power supply to ensure the continuity and reliability of power supply, but if there is no suitable power switch, ensure reliable switching between the two power sources, and shorten the switching time between the dual power sources to within one power freque...

AI Technical Summary

Problems solved by technology

Due to the increasing operating load of the power grid, more and more line faults are caused. Therefore, for important users such as airports, firefighting, hospitals, military facilities, and large-scale event venues, dual power supplies (main and standby two independent power supplies) are required. ) for its power supply to ensure the continuity and reliability of power supply, but if there is no suitable power switch, ensure reliable switching between the two power sources, and shorten the switching time between the dual power sources to within one power frequency power cycle , even if a dual power supply is used, it is far from being able to achieve real continuous power supply

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