Multifunctional and multipurpose cable partial discharge detection sensor

The invention relates to the technical field of detection sensors and relates to a multifunctional and multipurpose cable partial discharge detection sensor. The multifunctional and multipurpose cable partial discharge detection sensor comprises a signal output port, a first quick connection opening terminal, a second quick connection opening terminal, a third quick connection opening terminal, a fourth quick connection opening terminal, a waterproof joint, a signal input lead and a metal shell; the signal output port and the first quick connection opening terminal are connected with a built-in small high-frequency pulse current sensor HFCT; the built-in small high-frequency pulse current sensor HFCT and the third quick connection opening terminal are connected with a capacitor; and the capacitor is connected with an impedance regulator. The sensor can be matched with a foil film electrode for use; the sensor can be externally connected with other types of high-frequency pulse current sensors HFCT or high-fre