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.