Zhejiang Sandi Electric Co., Ltd

Zhejiang Sandi Electric Co., Ltd is an international PV enterprise which is located in the "capital of China's electrical appliances" Wenzhou. Specialized in the new energy source and electrical source scientific research, development, manufacture and service had surpasses for 15 years. Sandi company's products are widely applied in solar or wind energy, construction, industry, new energy source, civilian use, electric power, medical treatment, aviation, automatically control system of war industry and national heavy engineering project. Main products: Solar off grid pure sine wave inverter, solar pump inverter, PV array combiner box, solar charge controller, wind-solar hybrid controller, single phase to three phase converter, AC/DC Battery Charger and battery cabinet etc products. Sandi is recognized by widely customers according to entirely varieties, high quality and service first. The R&D and engineering technicians have multi-year experiences in product design, product implementation, engineering service and can manufacture the solar energy generation products with the international competition capability reaches advanced level in the world, our product have passed CE(EMC&LVD), SAA(AS4777&AS3100), G83/1, G59, VDE ARN 4105 and EN62109, EN61000 certification and approved by international standard. SANDI Electric Company insist on technology as forerunner, keep long-term, good research cooperation with all universities; fetch in and absorb international advanced technology, built strictly quality control system. We will take the work objective of “unremitting exploration, endeavor and innovation, honesty and dedication, perfect and practicality” and quality guideline of “criterion management, intensive manufacture, quality first, service with all hearts”. Seek excellence, value innovation! We will ceaselessly struggle and create refulgence with you together.

  • 86-577-62793760
  • 86-577-61209955
  • katrina@sandi.cc
  • Lvao Industrial Zone, Liushi Town
    Yueqing, Zhejiang 325604
    China

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Showing recent results 1 - 4 of 4 products found.

  • High Efficiency 5KW-500KW Off Grid Inverter

    SDP-50KW - Zhejiang Sandi Electric Co., Ltd

    SANDI SDP series Pure Sine Wave Inverter is the one of the most advanced technology DC to AC conversion products in the world, it’s suitable use for areas without electricity, providing a complete power solution for strict demand applications. With SVPWM technology it has high conversion efficiency, high instantaneous power and low losses power output pure sine wave, applying to capacitive, inductive and nonlinear mixed-load, with superior load capacity, perfect protection function: overload, short circuit, low/over battery voltage, improper operation etc, which won’t cause mechanical failures. This Inverter is very suitable for solar power systems, wind power generation systems, wind and solar hybrid generation systems. The inverter can supply AC power to all kinds of electric equipment, air conditioners, electric motors, refrigerators, fluorescent lights, televisions, electric fans and other industrial power supply.Technical Features: Using the sixth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It’s service life can up to 15 years or more. Intelligentized, modularized, simple structure design easy to maintenance. According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set. Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter’s usage, which reduced the cost of equipment investment, easy to connect wires and control. The output frequency can be setting via LCD panel, it’s very convenient for customer. The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%. The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel. Pure sine wave output. With good dynamic response less than 50MS, waveform distortion rate smaller, higher conversion efficiency and stable output voltage. Built-in low frequency isolation transformer, strong impact resistance, available with motors, pump, air conditioners and other high impact equipment. At the same time DC busbar and AC busbar are completely isolated to avoid interference. Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy. Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%. Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, output power KWH, time and date, temperature, fault code display. European CE (EMC, LVD) certificate, accredited by Australian CEC, ERAC energy network.

  • 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.

  • Advanced solar charge controller with 48V/96V/120V/192VV/240V/360V

    SDC360V-100A - Zhejiang Sandi Electric Co., Ltd

    The solar charge controller is the intelligent devicewith integration of controlling . It has good running performance with LCD display and convenient operation. Also have multi protection functions such as over-charge, over-discharge protection, and pole-confusion protection for storage battery. The controller is adopted PWM charging mode. It has day and night two type working mode with high reliable and safe operation, high efficiency, long service life functions.Technical Features:The solar charge controller adopts industrial-grade chips to ensure the stable feature of controllerExcellent EMC designHigh efficient PWM charging technology which has three charging stages (buck charging stage, equalize charging stage and float charging stage), and improves battery storage efficiency and charging efficiency.Advanced battery activation technology which increases battery lifetime 30% at least and improves the system performanceThe 120a solar charge controller adopts imported IGBT power module or MOSFET as electronic switch which can improve the stable performance of controller. There aren’t any mechanical switches in the systemLCD will display the system status and working parametersParameters setting flexiblyUsers can parallel connect lots of the controller is a systemFully enclosed duct design and high speed fan for cooling making the controller working in a variety of harsh environmentsDC output function (Optional)Standard Modbus protocol for RS-485 communication to extend the communication distance (Optional)The 120a solar charge controller will alarm when the system status is abnormalNew SOC method displays battery power accuratelyWith power generation statistics function to facilitate the view of power generation of daily, month and totalThere is temperature compensation function which will compensate the temperature according to different battery typeThe 120a solar charge controller adopts graphical dot-matrix LCD and 4 buttons as HMI for full menu and easy operationRTC time functionWall mounting type is easy for installation

  • 2 phase 120/240VAC SDP-30KW split phase inverter

    SDP-30KW - Zhejiang Sandi Electric Co., Ltd

    SANDI SDP series Pure Sine Wave Inverter is the one of the most advanced technology DC to AC conversion products in the world, it’s suitable use for areas without electricity, providing a complete power solution for strict demand applications. With SVPWM technology it has high conversion efficiency, high instantaneous power and low losses power output pure sine wave, applying to capacitive, inductive and nonlinear mixed-load, with superior load capacity, perfect protection function: overload, short circuit, low/over battery voltage, improper operation etc, which won’t cause mechanical failures. This Inverter is very suitable for solar power systems, wind power generation systems, wind and solar hybrid generation systems. The inverter can supply AC power to all kinds of electric equipment, air conditioners, electric motors, refrigerators, fluorescent lights, televisions, electric fans and other industrial power supply.