发明名称 |
Method and Apparatus Relating to Surge Protection |
摘要 |
According to an embodiment a method for an SPD (300a; 300b) is provided. The method comprises obtaining (405) a current measurement value I from a measurement of an input or an output current of a victim unit (210) associated with the SPD (300a; 300b). Based on the current measurement value I a determination is made whether to initiate a voltage limitation in the SPD (300a; 300b). In case it is determined to initiate the voltage limitation, the voltage limitation is initiated. An SPD (300; 300b) configured for corresponding operation is also provided. A discovered advantage is that input/output current of a victim unit is much less sensitive to impedance clamping effects compared to SPD voltages. A detection of surge conditions becomes more reliable. |
申请公布号 |
US2015333505(A1) |
申请公布日期 |
2015.11.19 |
申请号 |
US201214653886 |
申请日期 |
2012.12.20 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
Andersson Arne;Tegnander Hans |
分类号 |
H02H9/00;H02H9/02 |
主分类号 |
H02H9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Stockholm SE |