Single differential criterion can't satisfy the special requirements of long UHV transmission line for the sensitivity, speed and reliability of protection.
单一的差动保护判据无法兼顾超高压长线保护对灵敏性、速动性和可靠性的要求。
UHV long transmission line is of its distinct characteristics of distributed parameters and large capacitive currents.
特高压长距离输电线路呈显著的分布参数特性，其电容电流很大。
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