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  • 76kWh Lithium Battery 384V 200AHSolar Energy Storage LiFePO4 battery System

    SPVLI-76KWH - Zhejiang Sandi Electric Co., Ltd

    SANDI ESS lithium battery system is composed of lithium battery modules, BMS system, PV charge controller, AC/DC Charger, central control unit CCU, temperature detector, integrated structure and other parts; the solar panels in the system are battery storage and power for output; BMS module completes the detection and control of voltage, current, temperature, SOC, SOH and charging and discharging related parameters of power battery pack; PV controller and inverter realize bidirectional AC/DC function to meet the charging and discharging conversion demand of power battery pack; each detector is used to monitor the ambient temperature in real time to ensure the safety of the system.Features1. Standardized components, modular architecture, easy for expansion2. High energy density, small footprint, short construction period, strong environmental adaptability3. Battery module within the layered stack design, with more than 10 years of long design life4. Long Cycle Life LiFePO4 Lithium ion Battery system from 20KWH-500KWH optional5. The use of international advanced Mitsubishi IPM module and intelligent power module, with high power fast adjustment capability6. BMS battery management system with SOC automatic calibration and high current active balance function, combined with the perfect operation control and management strategies to achieve accurate and efficient management7. The combination of software and hardware protection, with alarm protection and automatic diagnostic functions, improve the protection strategy to ensure safe and efficient operation of the system8. Product communicates with the monitoring platform in real time through RS232, CAN communication interface, and reports various records in time to ensure real-time monitoring of the battery pack of the monitoring platform9. PV charge controller adopts three charging stages (buck charging, equalize charging and float charging) which can maximize the utilization of PV modules and batteries10. Colorful LCD display all module working information and statusSpecificationModel SPVLI-76.8KWHType of cell LiFePO4 (Lithium iron phosphate)Battery configuration 3.2V 200AH 120PCSRated capacity (KWH) 76.8kwhNominal capacity (AH) 200AHNominal voltage (VDC) 384VOperating voltage range (VDC) 312-438VRecommended Charge Voltage (VDC) 420VRecommended discharge cutoff voltage (VDC) 360VRecommended charge current(A) 100AMax Charge Current (A) 200ARecommended discharge current (A) 100AMax Discharge Current (A) 200ACharge temperature range 1~45℃Discharge temperature range -10～45℃Solar Charge Controller InputMaximum. Input voltage of solar array（Vdc） <750VdcBattery system voltage 384VDCMaximum power of solar array 40KWMaximum charge current（A） 100AEqualization charging voltage (Vdc) 426VEqualize charging recovery voltage (Vdc) 405.6VOver voltage disconnect voltage (Vdc) 438VOver voltage recovery (Vdc) 432VWorking temperature -20~50℃Protection level IP20Communication interface CAN2.0, BMSDisplay 5" LCD, EnglishCooling system Fan coolingWorking Altitude (m) ≤3000mReference Weight (Kg) 920KgReference size (W*D*H mm) 900*1100*1700mm

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  • Natural Cooling Input 380VAC 3 Phase to Output 190-300VDC 10A-40A Rectifier Battery Charger

    SD230D20ZZ - Zhejiang Sandi Electric Co., Ltd

    SANDI “SD” series intelligent high-frequency switch power supply modules are specially developed to meet the demands of modern DC system. The charger rectifiers are designed with world leading patent technology “resonant voltage type soft switching power supply technology”. They feature high efficiency and stability, intelligent control, small size and light weight. Standard RS-485 interface, easy to connect with automation system. “Four remotes” functions, intelligent management. The products are widely used in power plant, substations and etc..Main characteristic of the moduleModularization design, realize N+1 backup;The friendly man-machine interface. Large screen to show, realize man-machine dialogue operate really.RS-485 inrerface, realize “4 remote” function with monitor machine.High efficiency, Nearly 95%-96%;Lightly, 230V/10A natural cooling module only 9kg;Little volume, 230V/10A natural cooling module dimension only 325mm×230mm×130mm;After the full bridge rectifying circuit rectifies 3-phase AC to DC, then adjusted by reactive PFC, power factor>0.94;Function against reverse pour: each module has been added diode against reverse pour at output terminal.LED digital screen, digital calibrate, stable current ,fault alarm Main characteristic of the ModulesThe friendly man-machine interface. LED digital screen, digital calibrate, stable current ,fault alarmHigh efficiency, up to 95%-96%;Light weight, Small sizeAfter the full bridge rectifying circuit rectifies 3-phase AC to DC, then adjusted by reactive PFC, power factor>0.94;Unequal current ratio of parallel connection＜+/-3%, can ensure twenty modules work well by parallel connection.Multiple protections including over/under voltage, current limiting, short-circuit, parallel protection, over-temperature protection.Output over-voltage protectionTo prevent the disastrous accident caused by output overvoltage, there is overvoltage protection circuit in the module. Once the output voltage is higher than the threshold, the module locks up automatically and fault indication light is on, the faulty module quits work automatically and doesn’t affect the normal operation of the entire system.Output current limiting protectThe output current cannot increase infinitely. The maximum value of the output current of each module is limited to the rated output current 105%, in this range, the output current value of the module is continuously adjustable. If the load output of the module, the module will play down the output voltage.Output short-circuit protectionWhen short circuit, the output voltage drops to 0 immediately. Limit the short circuit current under 15% of rated output current. The module will not be damaged under short circuit state for a time, and resumes to work automatically after debugging. Module parallel protectionThere is parallel protection circuit in each module to ensure that when the fault module quits the system, the normal work of other modules and the system won’t be effect.Output over-current protectionThe output current cannot increase infinitely. If overloaded, the output voltage decreases automatically to protect the power components. The over current protection can be resumed automatically.

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  • 40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger

    SD750100G - Zhejiang Sandi Electric Co., Ltd

    40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger is for DC battery system charging station. With three-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-500Vdc output voltage range optional, suitable for all types of batteries.FeaturesProduct Introduction：SAND AC/DC Charger is specially developed for DC chargers module. It has high efficiency, high power factor, high power density, high reliability advantage. AC input 3 phase or single phase, DC output voltage range from 100 to 750VDC can be set, compliant with CE safety requirements, EMC standard EN61000-6-3 and EN61000-6-1 Class A, it is an advanced international level charger module.Unique function：● High efficiency over the full load range, full load efficiency greater than 95.5%● Wide output voltage range, 100-750VDC, suitable for a wide range of Lithium and lead acid battery● 5-inch LCD touch screen, easy to operate● Flexible application, charging voltage, charging current, charging time, timing charging can be set by LCD screen, easy to operateMain features：● Powerful protection, overheating, short circuit, overload, overvoltage, undervoltage, etc.● Three phase active power factor correction technology, reduces the harmonic interference to the grid● Dual DSP design, achieve the full digital control, less components means high reliability● Wide input voltage range, allows operation in most poor grid conditions● Soft start charging and soft shutdown minimize the impact on the battery.● Input, output have protective circuit breaker switch● Module adopts hot pluggable design, which is convenient for maintenance.● CAN/RS485 interface (Optional)SpecificationModel SD750100GAC input Input system Three phases + PEVoltage range 280Vac ~500VacRated voltage 440VacFrequency range 50Hz/60HzMaximum current <74AITHD (total harmonic distortion) <5%DC output Output power 40KWVoltage range 50-750Vdc ( can set)Constant power output voltage range 400Vdc-750VdcOutput current range (A) 100A ( 1~100A can set)Output current limit 1-100A continuously adjustableSteady voltage precision <±0.5%Steady current precision ≤±1% (rated range of 20% ~ 100% for output load)Load regulation rate ≤±0.5%Startup overshoot ≤±3%Peak-to-peak value noise ≤1% (200~1000V, 0~20MHz)Display Indication Light Green LED: normal operation,Yellow LED: alarm, Red LED: failureDisplay language EnglishDisplay 5’ LCD touch screenPower factor and THD Power factor ≥0.90 Full-load output power of @20%~50%≥0.98 Full-load output power of @50%~100%≥0.99 Full-load output power, input nominal voltage and frequency of @100%THD ≤5% Full-load output power of @50%~100%Protection function input overvoltage Protection Over Under Voltage automatic shutdown and restart when voltage return normalOutput overvoltage protection Over Under Voltage automatic shutdown and restart when voltage return normalOver-temperature protection Automatic shutdown. Automatic restart when the temperature return to normalShort circuit protection Automatic shutdown and lock, need power off to restart to unlockEfficiency Under Rated input voltage ≥95.2％

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  • Lithium battery 128kWh Lifepo4 Battery pack 280Ah with BMS for Solar Energy Storage System

    SPVLI-128kWh - Zhejiang Sandi Electric Co., Ltd

    ESS lithium battery system is composed of lithium battery modules, BMS system, PV charge controller, AC/DC Charger, central control unit CCU, temperature detector, integrated structure and other parts; the solar panels in the system are battery storage and power for output; BMS module completes the detection and control of voltage, current, temperature, SOC, SOH and charging and discharging related parameters of power battery pack; PV controller and inverter realize bidirectional AC/DC function to meet the charging and discharging conversion demand of power battery pack; each detector is used to monitor the ambient temperature in real time to ensure the safety of the system.1. Standardized components, modular architecture, easy for expansion2. High energy density, small footprint, short construction period, strong environmental adaptability3. Battery module within the layered stack design, with more than 10 years of long design life 4. Long Cycle Life LiFePO4 Lithium ion Battery system from 20KWH—500KWH optional5. The use of international advanced Mitsubishi IPM module and intelligent power module, with high power fast adjustment capability6. BMS battery management system with SOC automatic calibration and high current active balance function, combined with the perfect operation control and management strategies to achieve accurate and efficient management7. The combination of software and hardware protection, with alarm protection and automatic diagnostic functions, improve the protection strategy to ensure safe and efficient operation of the system8. Product communicates with the monitoring platform in real time through RS232, CAN communication interface, and reports various records in time to ensure real-time monitoring of the battery pack of the monitoring platform9. PV charge controller adopts three charging stages (buck charging, equalize charging and float charging) which can maximize the utilization of PV modules and batteries10. Colorful LCD display all module working information and statusPerformance characteristics：Small size and light weight, Maintenance-free；Environmental protection and pollution-free materials, no heavy；Accurately estimate the state of charge of the battery pack, that is, the remaining power of the battery, to ensure that the power of the battery pack is maintained within a reasonable range；Built-in BMS management system with comprehensive protection and monitoring control functions；5" LCD screen display, easy to operate, can check the temperature, voltage, working status, discharge current, dynamic and static SOC algorithm of a single cell, local display of alarm info, alarm level distinction, accurate positioning of abnormal cells；Main control MCU can be centrally controlled and manage peripheral settings (AC charging module, inverter module, solar charging module) to adjust the charging current and voltage of peripheral devices according to the battery charging curve, making the system more reliable；BMS battery management system, with SOC automatic calibration and high current passive balance function, combined with perfect operation control and management strategy, to achieve accurate and efficient management；EMS energy management system, BMS with solar controller/AC charger, inverter centrally manages charge and discharge, effectively controls the charge and discharge current within the cell usage conditions, protects the cell and extend its service life；SpecificationLithium battery 128kWh Lifepo4 Battery pack 280Ah with BMS for Solar Energy Storage SystemModel SPVLI-128KWHType of cell LiFePO4 (Lithium iron phosphate)Battery cell configuration 3.2V 280AH 144PCSRated capacity (KWH) 128kwhNominal capacity (AH) 280AHNominal voltage (VDC) 460VOperating voltage range (VDC) 375-540VRecommended Charge Voltage (VDC) 504VRecommended discharge cutoff voltage (VDC) 382VRecommended charge current(A) 140AMax Charge Current (A) 280ARecommended discharge current (A) 140AMax Discharge Current (A) 280ACharge temp range 1~45℃Discharge temp range -10～45℃MPPT Solar Charge Controller InputMaximum. Input voltage of solar array（Vdc） <900VdcBattery system voltage 460VDCMaximum power of solar array 64KWMaximum charge current（A） 140AEqualization charging voltage (Vdc) 511.2VEqualize charging recovery voltage (Vdc) 486.72VOver voltage disconnect voltage (Vdc) 525.6VOver voltage recovery (Vdc) 518.4VWorking temperature -20~50℃Protection level IP20Communication interface CAN2.0, BMSDisplay 5" LCD, EnglishCooling system Fan coolingWorking Altitude (m) ≤3000mReference Weight (Kg) 1530KgReference size (W*D*H mm) 1200*1120*1950mm

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