DC power supply substation battery charger and rectifier 150-750VDC

DC power supply substation battery charger and rectifier 150-750VDC

Model No.︰SD480V-100A

Brand Name︰SANDI

Country of Origin︰China

Unit Price︰US $ 8200 / pc

Minimum Order︰1 pc

Inquire Now

Product Description

DC power supply substation battery charger and rectifier 150-



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.

380V series natural cooling rectifiers ranges has two series according to input voltage grade. A variety of current output optional, 10A 20A 30A 40A, 50A 60A 80A 100A 120A 150A are big power rectifier especially designed for the power plant, substation and hydropower station.


Main characteristic of the Modules

  • The friendly man-machine interface. LED digital screen, digital calibrate, stable current ,fault alarm
  • High efficiency, up to 95%-96%;
  • Light weight, Small size
  • After 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 protection

To 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 protect

The 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 protection

When 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. 


Technical characteristics



Output current(A)




Weight (kg)


Cooling type

Fan cooling



Min. voltage (Vac)


Rated voltage (Vac)


Max. voltage (Vac)




Rated voltage (Vdc)


Float charge (Vdc)


Average charge (Vdc)


Voltage stabilization


Current stabilization


Power factor




Max Audible noise(dB)


Storage temperature


Min. voltage


Rated. voltage


Max. voltage


Working temperature


Min. voltage


Rated. voltage


Max. voltage


Current share imbalance


Soft start time(S)




Load grade

Continuous work underⅠgrade (100%) rated output current

Automatic current limit

Output current output exceeds the limit, constant output and the current does not rise any more.

Output over voltage protection

The output voltage exceed 480±20VDC, stop output automatically

Output short circuit protection

Once short circuit, the module start self protection, and resume to work after trouble shooting.

Payment Terms︰ T/T

Product Image