Distribution transformer

means a transformer that:

(1) has an ’input voltage of 34.5 kV or less;

(2) has an ’output voltage of 600 V or less;

(3) is rated for operation at a frequency of 60 Hz; and

(4) has a capacity of 10 kVA to 2500 kVA for liquid‐immersed units and 15 kVA to 2500 kVA for dry‐type units; but

(5) the term “distribution transformer” does not include a transformer that is an:

(A) autotransformer;

(B) drive (isolation) transformer;

(C) grounding transformer;

(D) machine‐tool (control) transformer;

(E) nonventilated transformer;

(F) rectifier transformer;

(G) regulating transformer;

(H) sealed transformer;

(I) special‐impedance transformer;

(J) testing transformer;

(K) transformer with tap range of 20 percent or more;

(L) uninterruptible ’power supply transformer; or

(M) welding transformer.