Current relay three-level starting circuit
Source: InternetPublisher:走马观花 Keywords: current relay starting circuit series connection Updated: 2020/01/31
The circuit is shown in Figure 3-161. In the figure, the first-level starting current is detected by the current relay KIi connected in series with Ri , the second -level starting current is detected by the current relay KI2 connected in series with R2, and the third-level starting current is detected by the current relay Kla connected in series
with R3
. They have the same pull-in current, but different release currents, among which KI1 is the largest, K2 is the second, and Kl[3 is the smallest.
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