OLTC Type	CZ
Phase	3	1
Max. rated through current Lum up to (A)	500	500
Short circuit current test (kA) Thermal (3S) Dynamic (Peak)	5 12.5	5 12.5
Max. rated step voltage Uim(V)	900	900
Rated step capacity Pstn(kVA)	250	250
The highest voltage for equipment Um up to (KV)	72.5	72.5
Max. operation positions Without change-over selector With change-over selector	17	17