Suppression of High-Frequency Interference in Signal Loop
2015 ◽
Vol 713-715
◽
pp. 1081-1085
Keyword(s):
With the deep and promotion of unattended work in substations, the correct rate of remote signal becomes an important index in automation scheduling system. For remote signal false caused by high-frequency interferences in substation, we propose the use of Ni-Zn ferrite ring to suppress high-frequency interferences. The frequency-impedance characteristics of ferrite ring with different turns are tested. And the inhibitory effect of ferrite ring on interferences below and above 100MHz is measured separately. We installed ferrite rings in remote signal loops, and compared the voltage waveforms before and after installation. Experimental results provide some references to suppress high-frequency interferences by Ni-Zn ferrite ring.
Keyword(s):
Keyword(s):
2005 ◽
Vol 288
(6)
◽
pp. G1195-G1198
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2013 ◽
Vol 2013
◽
pp. 1-6
◽
2018 ◽
Vol 115
(3)
◽
pp. 312
◽