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保護(hù)裝置的跳閘曲線(xiàn)。
判別極限由磁場(chǎng)的小磁閾值給出
上游斷路器，XT1B160 In160。
時(shí)間歧視
這種歧視是前一種歧視的演變。設(shè)置
因此，該策略基于逐步增加當(dāng)前閾值
當(dāng)我們接近
電源。與當(dāng)前的歧視情況一樣，該研究基于
比較保護(hù)裝置的時(shí)間-電流跳閘曲線(xiàn)。
這種協(xié)調(diào)：
•易于學(xué)習(xí)和實(shí)施；
•相對(duì)便宜；
•能夠?qū)崿F(xiàn)甚至更高的歧視水平，這取決于I
的cw
上游裝置；
•允許保護(hù)功能冗余，并可發(fā)送有效信息
到控制系統(tǒng)，
但有以下缺點(diǎn)：
•保護(hù)裝置（尤其是
靠近放射源的）泄漏率高，即使在未受輻射影響的區(qū)域，也存在明顯的安全和組件損壞問(wèn)題
錯(cuò)誤

the tripping curves of the protection devices. The discrimination limit is given by the minimum magnetic threshold of the circuit-breaker upstream, XT1B160 In160. Time discrimination This type of discrimination is an evolution from the previous one. The setting strategy is therefore based on progressively increasing the current thresholds and the time delays for tripping the protective devices as we come closer to the power supply source. As in the case of current discrimination, the study is based on a comparison of the time-current tripping curves of the protective devices. This type of coordination: • is easy to study and implement; • is relatively inexpensive; • enables to achieve even high discrimination levels, depending on the I cw of the upstream device; • allows a redundancy of the protective functions and can send valid information to the control system, but has the following disadvantages: • the tripping times and the energy levels that the protective devices (especially those closer to the sources) let through are high, with obvious problems concerning safety and damage to the components even in zones unaffected by the faul