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单选题
For grounded delta systems, "T2" shall be considered as corresponding to the grounded phase, the reference point for the system.
A
In a three-phase ground line sysem, "T2" is corresponding to the phase that is intentionally grounded, as the neutral point for the system.
B
In a grounded delta electrical system, one of the phases is grounded to create the ground line for the system. In this system, "T2" is corresponding to the phase that is intentionally grounded.
C
In a grounded delta system, one of the phases is intentionally grounded to create the zero line for the system. The phase labeled "T2" corresponds to the grounded phase, while the other two phases (T1 and T3) are not grounded.
答案解析
正确答案：C
