Description
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).
Main Function
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
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
Functional description
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
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
Normal Service Condition
1,Altitude:not more than 1500m.
2,Ambi ent temperature:-10℃~+40℃,relative humidity:notmore than 50%,relative higher humidity is allowed in lower temperature ≤90%
3,Environmental pollution grade;3 grade.
4,Aplace without violent impace and vibration.
1,Altitude:not more than 1500m.
2,Ambi ent temperature:-10℃~+40℃,relative humidity:notmore than 50%,relative higher humidity is allowed in lower temperature ≤90%
3,Environmental pollution grade;3 grade.
4,Aplace without violent impace and vibration.