Short-circuit current suppression device based on phase change resistor
A phase change resistance, short-circuit current technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. Disadvantages and other problems, to achieve the effect of reducing the degree of voltage sag, reducing the breaking capacity requirements, and improving the continuity of electricity consumption
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[0027] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a short-circuit current suppression device based on phase change resistance is applied in distribution line 1, figure 1 The direction of the middle arrow indicates the current direction, and the distribution line includes a current transformer 2, including a phase-change resistor 3 connected in series on the distribution line 1, and the phase-change resistor 3 includes a phase-change layer 31 and electrodes arranged at both ends of the phase-change layer 32. The electrode is connected with a pulse signal that triggers the transition of the phase change layer from crystalline state to amorphous state, and the envelope of the pulse signal is proportional to the current of the power distribution line, and the duty of the pulse signal is The ratio is inversely proportional to the magnitude of the current in the distribution line.
[0028] By connecting a phase-change resistor 3 in series on the distribution...
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