Temperature fuse ZnO Resistors should have good thermal coupling when varistors fail (high-impedance short circuit), the heat it generates the temperature fuse fuse, varistor and separation circuit failure to ensure that the equipment Safety. When a high frequency temporary over-voltage applied to the varistor , the varistor may cause momentary short-circuit breakdown (low impedance short circuit), the temperature fuse fuse had a chance, but also may cause fire. To avoid this phenomenon may be further connected in series to each varistor fuse a high impact frequency (single frequency fuse employment at the time of aging failure may not fuse)
MOV
2016年4月2日星期六
The note of ZnO Resistors
Temperature fuse ZnO Resistors should have good thermal coupling when varistors fail (high-impedance short circuit), the heat it generates the temperature fuse fuse, varistor and separation circuit failure to ensure that the equipment Safety. When a high frequency temporary over-voltage applied to the varistor , the varistor may cause momentary short-circuit breakdown (low impedance short circuit), the temperature fuse fuse had a chance, but also may cause fire. To avoid this phenomenon may be further connected in series to each varistor fuse a high impact frequency (single frequency fuse employment at the time of aging failure may not fuse)
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