| | DDH-111系列智能電子電動機保護器 DDH-111 seres smart protector applicable | 一、概述
DDH-111系列智能電子電動機保護器用於交流電源電壓24-660V，頻率50Hz或60Hz的供電電路中，與交流接交流接觸器等開關組成電動機控制電路。用作於三相電動機的缺相、三相電流不平衡、過載的保護。當電動機的供電電路，二次回路出現缺相，三相電流不平衡、過載等故障時，保護器能及時切斷負載的工作電源，從而可靠地保護電動機。本裝置采用穿芯式電流取樣電路，通過內置精密電壓比較器控制，其輸出端口采用無觸點的固態式交流電子開關（檢驗開關的通斷特性時不能用萬用表的電阻檔位進行測試）。
DDH-111 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、保護功能：過載、缺相、堵轉、三相電流不平衡、欠壓等。
2、故障顯示：具有A相、B相、C相工作電源指示（任一相缺相所示指示燈熄滅），過載顯示（電機工作電流超過額定動作電流時，保護器內部電路作2S-14S延時過載指示燈亮，並關閉電機工作電源）。
3、出現上述故障現象：停止指示燈亮，同事關閉電機工作電源。
4、設定功能：可現場設置額定電流值及過流保護延時時間。
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、功能敘述 Functional description
1、過載保護：當電動機電流大於額定電流值的1.2-5倍時保護器的延時動作時間14S-0.3S，具有良好的反時限特性。斷相保護：當三相電源任一相電源斷相或斷線T≤2S。堵轉保護：當工作電流達到整機電流8倍以上時T≤0.3S。三相電流不平衡保護：三相中任二相電流差T≤10S。欠壓保護：動作電源范圍35-70％。，額定工作電源T≤10S。
2、LC1交流接觸性能機械壽命≥100萬次；電壓：AC380V±15％；頻率：50/60Hz±2％；保護器功耗≤2W吸合電壓：85％-110％US；釋放電壓：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、正常工作條件 Normal Service Condition
1、海拔高度不超過1500M；
2、環境溫度：-10℃～+40℃，相對溫度不超過50％，在較低的溫度下允許有較大的相對溫度≤90％；
3、環境污染等級：3級；
4、在無特強烈沖擊振動的地方。 |
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