DVR Dynamic Voltage Restorer

IntroductionLVSC series voltage stabilization device(namely Dynamic Voltage Distortion Compensator) adopts high-power power electronic technology and digital processing technology, and uses generalized second-order complex vector algorithm to quickly detect the transient process of power system voltage. While isolating the power supply of the transformer, the energy pre-stored in the super capacitor is fed back to the primary load to ensure the normal production.The device adopts intelligent control mode, and flexibly sets the control logic according to the actual working conditions of the user. It is widely used in petrochemical, electronic, semiconductor, precision manufacturing, automobile, pharmaceutical, hospital, metallurgy, and machining industries that are sensitive to voltage. The best way to prevent "shake electricity".According to incomplete statistics, more than 90% of the power quality problems in the modern precision manufacturing industry are caused by transient voltage fluctuations, and the impact and harm caused by such power quality problems to the precision manufacturing industry have become increasingly prominent.Voltage SagIEEE standard and the national standard "Power Quality Voltage Sag and Short Interruption" (GB/T30137-2013) define: the RMS value of the power frequency voltage at a certain point in the power system is temporarily reduced to 10%-90% of the rated voltage (that is, the amplitude 0.1-0.9pu), and the phenomenon that it returns to normal after 10ms-1min is called voltage sag.Voltage SwellThe phenomenon that the RMS value of the power frequency voltage at a certain point in the power system temporarily rises to 1.1-1.8pu, and returns to normal after a short period of 10ms-1min is called voltage swell.short interruptionIEEE standard and national standard "Power Quality Voltage Sag and Short Interruption" (GB/T30137-2013) definition: The rms value of the power frequency voltage at a certain point in the power system suddenly drops below 0.1pu, and after a short duration of 10ms-1min The phenomenon of returning to normal is called short interruption of voltage.Specification Sheet  ItemParameterRated Capacity150kVA(50-2000kVA)Rated Voltage400V (customized690V/208V)Frequency50Hz± 5%System structure3P,TNCorrection Range±20% uninterrupted 100% outputThree-phase symmetrical drop residual voltage 60%, 100% output for 20sThree-phase symmetrical drop residual voltage 40%, ≥90% output for 5sAsymmetric drop residual voltage 30%, ≥90% symmetrical output 5sMain circuit overload capacity110% In long run; 150% In 30sBypass Mode Overload Capability20KA/150ms,40KA/10msOutput Voltage Accuracy≤ ±1%Output accuracy during dip± 3%Response time100usfull transition time< 10msEfficiency>99%communication port & protocol typeEthernet(RJ45)/RS485DisplayHMI/SD card IP classIP2X (IP4X(customized))System structure working principle   Company Profile Founded in 2002, Sanhe Power Tech is a national high-tech enterprise that specializes in power quality products, R&D of technology and solutions, production,service etc. It becomes industry-leading company. The company has got multiple technologies including. 28 invention patents, 24 software copyrights, 22 national standards and 15 industry standards drafting. Sanhe Power Tech is a member of international committees such as the International Electrotechnical Commission (IEC) the Institute of Electrical and Electronics Engineers (IEEE) etc. The software development system has passed the CMMI evaluation of the American SEI. There are three main business covering: A full range of power quality testing and governance products and complete solutions. Distributed new energy system products and advanced solutions. Primary and secondary engineering based on "dual carbon" and energy management with standardized and professional engineering services. Our AdvantagesSimulation of GRID Reactive Load FlowAnalysis of L-C Circuit Amplitude-frequency CharacteristicIntegration & Relay Coordination ReactionCharacteristic Curve of Permanent Magnet BreakerSampling & Filtering of Electronic CircuitIGBT Driving & ProtectionPWM TechnologyTechnology about Semiconductor Forced CommutationThermal Simulation & Heat Exchange DesignFeed-forward Second-order Complex Vector Algorithm3D & Data SimulationInstrumented IOT CommunicationVP Scheduling & DispatcherDigital Twins of Micro-Grid & Islanding-Grid FAQWhat kind of payment terms can we accept?Payment in advance,Installment payments,Letter of credit(L/C). What is the lead time of products?According to different products, the lead time is different.For standard products like APF,SVG, the lead time is one week.For customized capacitor bank etc,  the lead time is 25 to 45 days. How to find the product model if you are some demand?If you need our technical guide,please advise your problem details as much as you can,we can give more reasonable solution.You may provide following drawings or reportSingle line drawingPanel primary scheme drawingP