Intelligent integrated medium-voltage ac vacuum switchgear based on flexible switching-closing technology

An intelligent integrated medium-voltage alternating current (AC) vacuum switchgear based on a flexible switching-closing technology, comprising:

• a vacuum switching tube (1), an insulator (9), a switching-closing mechanism connecting piece (15), and a controller (24), the vacuum switching tube (1), the insulator (9), and the switching-closing mechanism connecting piece (15) being axially connected in sequence, wherein
• the controller (24) comprises an intelligent circuit (23), a grating travel transmitter (16), a switching control interface circuit (17), and a closing control interface circuit (18);
• a microprocessor is built in the intelligent circuit (23), and is configured to calculate switching-closing operating parameters;
• and the grating travel transmitter (16), the switching control interface circuit (17), and the closing control interface circuit (18) are electrically connected to the intelligent circuit (23);
• a grating sheet (6) is disposed on a movable contact connecting rod (5) of the vacuum switching tube (1), an emitting light guide (7) is disposed on one side of the grating sheet (6), a receiving light guide (8) is disposed on the other side of the grating sheet (6), and a light inlet of the receiving light guide (8) is opposite to a light outlet of the emitting light guide (7);
• and the emitting light guide (7) and the receiving light guide (8) are connected to the grating travel transmitter (16), and the grating travel transmitter (16) is electrically connected to the intelligent circuit (23);
• and
• the switching-closing mechanism connecting piece (15) comprises a transmission piece (12), a switching mechanism (13), and a closing mechanism (14);
• the switching mechanism (13) and the closing mechanism (14) are coaxially connected to one end of the transmission piece (12), the other end of the transmission piece (12) is fixedly connected to the insulator (9), and the switching mechanism (13) and the closing mechanism (14) are electrically connected to the switching control interface circuit (17) and the closing control interface circuit (18), respectively.