High-voltage line parameter test wiringadaptor and application method thereof

The invention discloses a high-voltage line parameter test wiringadaptor and an application method thereof. The adaptor comprises a metal shell, a supporting insulation plate, a ground wire with an insulated sheath, an electric operating mechanism, a three-pole three-throw isolator and metal conductors, wherein the metal shell is located above the supporting insulation plate; the metal conductorsare supported by insulated pillars II and directly connected with the three-pole three-throw isolator; the three-pole three-throw isolator is electrically controlled by the electric operating mechanism; the ground wire with the insulated sheath is connected to the upper side of the three-pole three-throw isolator, and is supported by an insulated pillar I. The high-voltage line parameter test wiringadaptor not only can meet the requirement that wring is required to change during testing, but also can carry out testing efficiently, conveniently and safely; in an electric parameter measurement unit, the adaptor can dire