What is the function, function and structure of voltage transformer handcart?

High voltage transformer handcart is commonly known as Pt handcart. It plays an important role in our high voltage cabinet handcart. What is its function? What does it do? What kind of structure is it? Let's focus on:

Function of Pt handcart: it is mainly convenient for voltage transformer test and fuse replacement (generally refers to xrnp1 fusible core). Put Pt on the handcart so that it is easy to operate, convenient and safe.

Knowing the function and function of Pt handcart, how is it structured?

Its main structure is composed of shell, connecting insulator, contact, contact arm / sleeve, fuse, lightning arrester (optional), discharge counter (in case of special requirements), harmonic eliminator (in case of special requirements), voltage transformer (in case of quantity, 2pt or 3pt is normal), chassis car, large cover, small cover, sensor (in case of customer requirements), etc.