| 摘要 |
<p>Protection apparatus against electrical overvoltages which comprises a Zener diode stage, varistors, dischargers of gas or of other components whose impedance reduces following a given voltage, serially and/or shunt connected, with one of its terminals applied to an output lead of the differential breaker associated with the power supply of the receiver, whilst the other terminal of the stage is applied to the other lead before input to the differential breaker, producing the shunting of a discharge current to the other lead. The apparatus is applicable to the protection of electrical receivers which require a uniform power supply and which are sensitive to voltage spikes.</p> |
