2.In this paper,the operation margin of mho relays(zone 3 impedance relays) is equivalently redefined as function of bus voltages instead of line impedance.
研究了距离三段保护的动作性能,将其动作裕度定为两端节点电压的函数。
3.As an offshoot of the same, IAF redrew its operational plans and objectives were redefined in tune with the changed modus-operandi and directions.