Current transformer oil extraction sampling valve

The invention discloses a current transformer oil extraction sampling valve. The current transformer oil extraction sampling valve comprises a connecting valve body and a valve element, wherein a cavity is formed in the connecting valve body, two ends of the cavity are run-through, and the right end of the cavity is provided with inner threads; the valve element is in a columnar shape, the valve element is connected with the connecting valve body by threads in a sealing manner, and an oil outlet is formed in the left end of the valve element; a T-shaped oil discharge passage is arranged in the valve element, one port of the T-shaped oil discharge passage is communicated with the oil outlet, the other two ports of the T-shaped oil discharge passage are respectively arranged on the side wall of the valve element and communicated with the cavity of the connecting valve body; the oil outlet in the left end of the valve element is connected with an injector. According to the invention, the valve element is installed in the connecting valve body and used for opening a top ball of an oil discharge valve, so that oil flows into the cavity of the connecting valve body; one end of the valve element is connected with the injector, the injector is used for extracting the oil in the cavity of the connecting valve body into the injector, and an oil sample in the injector is sealed for analysis.