• 常用时限保护特性相比较,保护模型符合负载实际运行规律保护要求测量误差关系进行分析

    Different from the common inverse time characteristic, this model conforms to the load actual operating law and the protection request, and takes the analysis of measurement error into consideration.

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  • 保护装置自具电源基于热量累积原理实现快速高精度相电流反时限保护方法,实现对相电流零序电流三段式保护

    The power of the protector is supplied by itself from the ct. Based on thermal cumulate principles, a rapid and high precision inverse-time phase-sequence over-current protection is implemented.

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  • 根据算法估计性能特点提出一种具有时限特性距离保护算法的实现方案

    According to the characteristics of different algorithms, an implementation scheme of distance protection with inverse time characteristic is brought forward.

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  • 基本保护采用零序过电压保护,动作时间采用时限特性

    The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection.

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  • 重点介绍热过载保护时限特性启动保护运行保护区别

    The inverse time characteristic of overload protection and the differences of starting protection and running protection are described in detail.

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  • 分析电动机传统反时限负荷保护基础上,提出一种基于微分方程的过负荷保护方案

    After analyzing the conventional time-inverse overload protection of the motor, the paper presents a new thermal overload protection scheme basing on the solution of a differential equation.

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  • 因此作为失步保护后备电压保护应具有反时限特性

    Thus, low voltage protection devices, served as lock-out protection reserve will also have characters uf inverse time-lag.

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  • 课题仿真计算保护算法用于实现高压线路微机距离保护时限

    The algorithms of microprocessor distance protection emulated and calculated in this paper are used to realize the inverse time characteristic of microprocessor distance protection.

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  • 过载保护1.2额定电流时启动采用时限特性动作

    Overload protection:Start at 1.2times of rated current, adopt inverse time lag characteristic action;

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  • 反时限距离保护解决范围快速动作保护范围末端可靠动作之间矛盾最好策略。

    The distance protection with inverse time characteristic is the best choice to solve the conflict between fast trip near the protecting relay and reliable trip at the end of protection zone.

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  • 通过两个算例分析可看到改进算法的效果以及粒子群算法解决分布式电源并网情况下反时限保护整定问题能力

    The improved PSO algorithm is tested in two models, to show the effects of improvement and its ability in solving the inverse time overcurrent relay coordination problem when DG units are connected.

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  • 保护功能有三段过电流保护反时限保护三相一次检无压自动重合闸

    The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.

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  • 保护功能有三段过电流保护反时限保护三相一次检无压自动重合闸

    The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.

    youdao

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