| | WHZD系列智能电子电动机保护器 WHZD seres smart protector applicable | 一、概述
WHZD系列智能电子电动机保护器用于交流电源电压24-660V，频率50Hz或60Hz的供电电路中，与交流接交流接触器等开关组成电动机控制电路。用作于三相电动机的缺相、三相电流不平衡、过载的保护。当电动机的供电电路，二次回路出现缺相，三相电流不平衡、过载等故障时，保护器能及时切断负载的工作电源，从而可靠地保护电动机。本装置采用穿芯式电流取样电路，通过内置精密电压比较器控制，其输出端口采用无触点的固态式交流电子开关（检验开关的通断特性时不能用万用表的电阻档位进行测试）。
WHZD series smart protector applicable to an evectromotor is applicable tohe circuit with the alternating-current supply voltage 24-660V,Frequency 50Hz or 60Hz,combining the ACContactor and other switches to be an electromotor for controlling the circuit.It can be three-phrase electromotor’s lose phrase when threephrase alternating-current is unbalanceorov erload protected.If the second circuit appears lose phraseor three phrase alternating-current is unbalance or overload while electromotor isworking,the protector will immediatelycut off the current supply.So it can protect the electromotor credibly.This equipment adopts the circuit withpunching cores’current,and controls the circuit with the inside nicety voltage comparator,and the output port is contactless solid AC electronic switch,(whichcan’t use multimeter resistance standard when xamineing the make-break capacity). |
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二、主要功能 Main Function
1、保护功能：过载、缺相、堵转、三相电流不平衡、欠压等。
2、故障显示：具有A相、B相、C相工作电源指示（任一相缺相所示指示灯熄灭），过载显示（电机工作电流超过额定动作电流时，保护器内部电路作2S-14S延时过载指示灯亮，并关闭电机工作电源）。
3、出现上述故障现象：停止指示灯亮，同事关闭电机工作电源。
4、设定功能：可现场设置额定电流值及过流保护延时时间。
1、Protect function:Overload、phase failuer、block、three phase current unbalance、under-voltahe etc.
2、Error display:With phase A、phaseB、phaseCworking power indicating(any one of the three phases failed,the indicating lamp off), overload display(when the mo tor working current exceed the rated operating current,the protector inside circuit will deliver a 2S-14S delay,the overload indicating lamp on),switch off the motor working power supply(ZDS-1 type has current display).
3、The said error appeared:The Stop indicating lamp on,and switch off the workingpower supplay of the motor.
4、Set function:Can set the rated current value and over-current protect delayingtime on site |
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三、功能叙述 Functional description
1、过载保护：当电动机电流大于额定电流值的1.2-5倍时保护器的延时动作时间14S-0.3S，具有良好的反时限特性。断相保护：当三相电源任一相电源断相或断线T≤2S。堵转保护：当工作电流达到整机电流8倍以上时T≤0.3S。三相电流不平衡保护：三相中任二相电流差T≤10S。欠压保护：动作电源范围35-70％。，额定工作电源T≤10S。
2、LC1交流接触性能机械寿命≥100万次；电压：AC380V±15％；频率：50/60Hz±2％；保护器功耗≤2W吸合电压：85％-110％US；释放电压：75％-20％US
1、Overload protec t:When the working current of the motor exceeds its rated current 1.2-5 times the delay-action time of the protector is 14S-0.3S.it has excellent renersetime limit function Phase failure protect:When any one of the three phases is failed,T≤2SBlock protect:WHen the working current reaches to 8times even more of the machine current T≤0.3S Three phase current unbal ance protect:Any tow phasecurrent of the three Phase are wead T≤10S Under-voltage protect:The working power supply range35-70％。,the rated working power upply T≤10S
2、LC1 AC Contactor Function Mechanical life≥1 million times;Voltage:AC 380V±15％；Frequency:50/60Hz±2％；Protector consumption ≤2W；The matches voltage:85％-110％US;Release the electric voltage:75％-20％US | 四、正常工作条件 Normal Service Condition
1、海拔高度不超过1500M；
2、环境温度：-10℃～+40℃，相对温度不超过50％，在较低的温度下允许有较大的相对温度≤90％；
3、环境污染等级：3级；
4、在无特强烈冲击振动的地方。 |
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