High Power AC to DC Battery Charger with input 380VAC
The modules are designed with world leading technology “resonance voltage type dual loop control switching power technology”, feature high efficiency, high reliability, small size, light weight and etc.
Main features
-
Power factor correction technology, low pollution to the grid;
-
Automatic current-sharing technology, which allows the chargers work in parallel operation to maximize the output power.;
-
Fan cooling;
Multiple protections
-
Over-voltage protection: When output overvoltage occurs, the module stop output, the relative module fault indication light is on, the faulty module quits work automatically and doesn’t affect the normal operation of the entire system.
-
Over-current protection:The output current cannot increase infinitely. The maximum output is limited to the 105% rated output current. Once the load output exceeds the threshold, the charger revise down the output voltage automatically.
-
Output short-circuit protection: use retraction Prolapse limit and the output characteristics are as follows 1.1. Once output short circuit, the module draws the output voltage to 0 immediately, and limits the short circuit current under 15% current limiting to protect the module. The module will not be damaged under short circuit state, and resume work automatically after debugging.
-
parallel protection:There is parallel protection circuit in each module to ensure the fault module quits work automatically and other modules will not be influenced.
-
Output over-current protection: Over-temperature protection is mainly for protecting large power converters. The power devices will be turn off once the through current exceed the limit the devices can withstand.
-
Under-voltage protection:Automatically gives an alarm if low output voltage.
Over-temperature protection:Over-temperature protection is mainly for protecting large power components. In normal operating circumstance, the module is working under a designed range. In particular case, when the module detects that the temperature of the radiator is over the limit, it will shut down automatically to protect itself and resume work after the temperature comes lower.
Technical data
|
Model
|
750Q20NZ
|
|
Weight(KG)
|
46
|
|
Size(width×height×depth)
|
680×133×600mm
|
|
Output voltage(VDC)
|
450-750
|
|
Max output current(A)
|
20
|
|
Rated power(KW)
|
15
|
|
Input voltage(VAC)
|
Min.
|
323
|
|
Nominal
|
380
|
|
Max
|
437
|
|
voltage stabilization
|
≤±0.5%
|
|
current stabilization
|
≤±1%
|
|
Full load power factor
|
≥0.99
|
|
total harmonic current (THD)
|
≤5%
|
|
Efficiency
|
≥92%
|
|
Storage temperature(℃)
|
Min
|
-40
|
|
Nominal
|
25
|
|
Max
|
60
|
|
Working temperature(℃)
|
Min
|
-20
|
|
Nominal
|
25
|
|
Max
|
50
|
|
Current share imbalance
|
±5%
|
|
Start delay(s)
|
3S-8S
|
|
Load level
|
continuously work under I-level (100%) rated output current
|
|
Automatic current limiting
|
Constant Current Output and the current will not rise once the output current reach to the limit.
|
|
Over voltage protection (VDC)
|
780±5VDC
|
|
Short circuit protection
|
Automatic protection and resume work after trouble shooting
|
|
Reverse connection protection
|
Automatic protection, self recoverable
|
