3BSE005029R1通訊模塊,3BSE005029R1怎么使用
電阻-電容抑制器優(yōu)先用于產(chǎn)生
電壓變化率高(dv/dt)。CI626A 3BSE005029R1超過RCs使用電壓能力的大功率負(fù)載
夾緊裝置,如MOV,通常可從裝置制造商處獲得。

電阻電容抑制器也優(yōu)先于MOV,因?yàn)槌?/p>
吸收負(fù)載能量。
一般來說,RC緩沖器的電容值應(yīng)與線圈的值相同,單位為微法拉
額定電壓至少為峰值電源電壓兩倍的電流(安培)。電阻器為
通常等于線圈的直流電阻。3BSE005029R1通訊模塊對于直流線圈,電容器通常替換為
一個(gè)“反激”二極管,其陽極指向線圈的負(fù)極。電阻器有助于
保持設(shè)備快速退出;如果不擔(dān)心這一點(diǎn),可以消除它。
大多數(shù)控制和接觸器制造商生產(chǎn)的抑制器附件
安裝在其設(shè)備上。GE General Purpose Control提供以下類型:,
布盧明頓,
Resistor-capacitor suppressors are preferred for low-current high-inductance loads that generate a
high rate of change in voltage (dv/dt). High power loads beyond the capacity of RCs use voltage
clamping devices such as MOVs, which are usually available from the manufacturer of the device.
Resistor-capacitor suppressors are also preferred to MOVs because they reduce EMI in addition to
absorbing load energy.
In general, the capacitor for an RC snubber should be the same value in microfarads as the coil
current in amperes, with the voltage rating at least twice the peak supply voltage. The resistor is
usually equal to the DC resistance of the coil. With DC coils, the capacitor is usually replaced with
a “flyback” diode oriented with the anode to the negative terminal of the coil. The resistor helps
maintain a fast dropout of the device; it can be eliminated if this is not of concern.
Most control and contactor manufacturers make suppressor accessories that can be conveniently
mounted on their devices. The following types are available from GE General Purpose Control,
Bloomington,