Reduced Voltage Starter (RVS) 0.4kv Protecting Motor

 high voltage solid soft starter (hereinafter referred to as soft starter) is a c designed with up-to-date concept,and mainly applicable to the control of and protection for the starting and stopping of squirrel-cage type asynchronous and synchronous motors.The starter is composed of several thyristor in series-parallel,and it can meet different current and voltage requirements.   The Product is widely used in electric industry with rated voltage 3000 to 10000 V, building materials, chemical industry, metallurgy, steel and paper-making industries etc.. And can perform well if used together with various kinds of electromechanical devices including water pumps,fans,compressors, crashes, agitators and conveyer belt etc..It is the ideal device for starting and protecting high voltage motors.  Basic parameters Type of loadThree-phase squirrel cage asynchronous and synchronous motorsAC voltage3000---10000VAC    Service frequency50HZ/60HZ±2HZ Phase sequence allowed to work with any phase sequence (through setting parameter)Composition of major loop (12SCRS,18SCRS,30SCRS depend on model) Bypass contactorContactor with direct starting capacityControl powerAC220V±15% Transient voltage overloaddv/dt snubber networkStart frequency1-6 time per hour Ambient conditionAmbient temperature:-20°C  -+50°C Relative humidity:5%----95% no condensationAltitude less than 1500m(derating when altitude is more than 1500m)Protective functionsOpen-phase protectionCut off any phase of primary power supply in the courage of starting or operationOver-current protection in operationOperational Over-current protection setting:20~500%leUnbalanced phase current protectionUnbalanced phase current protection:0~100%Overload protectionOverload protection grade:10A,10,15,20,25,30Under load protectionUnder load protection grade:0~99%                                                       Action time of under load protection:0~250S start timeoutStart timeout limit:0~120SOver-voltage protectionWhen voltage of primary power supply is 120% higher than rated value,over-voltage protection is enabled.Under-voltage protectionWhen voltage of primary power supply is  70% higher than rated value,over-voltage protection is enabled.Phase protectionAllow to work with any phase sequence(through setting parameter)Ground protectionProtection available when grounding current is higher than set valueDescription of communicationProtocolModbus  RTU Communication interfaceRS485 Network connectionEach can communicate with 32 SH-SPHMV equipment in networkFunctionOperation state and programming can be observed through communication interfaceOperating interfaceLCD displayLCD display/touch screen displayLanguageChinese an EnglishKeyboard6 touch membrane keyboardMeter display Voltage primary power supplyDisplay voltage of three-phase primary power supplyThree-phase currentDisplay current of three-phase major loopDate recordFault historyRecord recent 15 faults informationHistory of number of startsRecord number of starts of this soft starterCompare reactor softstarter with solid softstarter Medium voltage reactor soft starterMedium voltage solid soft starter  PrincipleThe reactance is connected in series in the stator circuit of the motor, and the starting multiple control of the current is realized by sharing the voltage at the motor end.   Parallel thyristors are connected in series in the stator circuit of the motor, and the conduction angle of the thyristor is adjusted through the closed-loop control system to gradually increase the motor terminal voltage and realize the starting of the motor. voltage executionreactorthyristor (SCR) usage application380V-10KV,100-3000KW380V-10KV,100-10000KW, specially suitable for big capacity motor Starting process controllabilitynot controllableClosed loop control to realize constant current starting repeatabilityContinuous starting, good repeatabilityContinuous starting, good repeatability and controlled current lifespanabove 15 yearsabove 20 years response timeslow(class second)fast (class: millisecond) protectionOver time protectionOvercurrent, quick break, timeout, overvoltage, undervoltage, current imbalance, overload, underload, thyristor short circuit protection measuring functionNOcurrent, voltage soft-startingNOYES English HMI operation   /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1