An analysis of electromagnetic characteristics and mechanical load characteristics of actuator for 4 pole MC

Analytical model of AC contactors for studying response mechanism to multi‐dimensional voltage sag characteristics and its novel applications

“…The non-periodic current component is almost non-existent when POW is around 90°, according to (10), (12) and (18). Thus, there is almost no transient process, and the waveform of F mag during the sag is more stable, as shown in Fig.…”

“…Then, it has a great difference with the transient value of the one in the during-event segment. So, the initial value of the non-periodic current is pretty high based on (18). However, when POW is 90°, the coil current is nearly zero.…”

“…Since the current cannot be abruptly changed, there is a large non-periodic component in the coil at 0° POW, according to (18). According to (17), the existence of the non-periodic component leads the waveform of i and ϕ are offset to a side of zero-axis, as shown in Fig.…”

“…The current researches focus on two categories: experimental testing [10][11][12][13][14] and model analysis [15][16][17][18][19][20][21][22][23][24].…”

“…Based on the model of ACC in [15][16][17][18], model analysis becomes a way to study the response mechanism [19][20][21][22][23]. A model build in PSCAD/EMTDC is proposed in [19,20], and the influence of POW and PAJ to ACC has been analysed based on the VTC.…”