48Vdc Modular battery chargers
Widely used for 15MW-60MW power plants,10KV-500KV power substations,power plants, national grid,electricity.ect With input 220Vac/230Vac/240Vac/50Hz/60Hz single phase, or 380V/400V/415V/480Vac/50Hz/60Hz input; output: 24V/48V/110V/125V/220V/240Vdc/20A to 1000A, with switch mode rectifier modules, with parallel and current-sharing functions with other chargers to expand the capacity. With MTBF>200000 hours and design life>20 years
Application:
Widely used for 15MW-60MW power plants,10KV-500KV power substations,national grid,thermal power plant,hydropower station,telecom,railway,financial industry,military,oil and gas, substations for circuit breaker closing,two loop control,signal, protection,remote communication,electric power, petroleum,chemical,metallurgy,machinery,papermaking,coal,building materials,textile,wine,ect.
Features:
With high efficiency,high power density, high reliability,intelligent control,small size and light weight
With intelligent high frequency switching mode rectifier modules are adopted
With 48V,110V,125V,220V variety of options, which has all standard RS485 communication interface and several communication protocols.
The charging modules can work in parallel, N+1 hot swappable, high current share capability, flexible configuration
Intelligent monitoring function, LCD display, audible and visual alarm, perfect records function
With phase lack protection,delay protection when AC input switch and ensure soft start of charging module
Intelligent battery management and service, monitor terminal voltage, charging and dischaging current, test and record discharge capacity
With temperature compensation function, efficiency upto 95%
AC input voltage: 220VAC/1phase, 208VAC/220VAC/380VAC/400VAC/415VAC/460VAC/480VAC/3phases/40Hz to 70Hz
Output current from 10A to 600A, battery capacity range from 10AH to 3000AH, VRLA batteries and nickel cadmium batteries,ect
Insulation resistance is 20M ohm; Insulation strength of 2.5KVAC for 1minute;
Altitude less than 2000M, earthquake intensity less than 7
Modular design, with N+1 redundancy function, hot swappable,current sharing;Size:800x600x2260mm
Specification:
Model | GRDW-4820 | GRDW-4825 | GRDW-4830A | GRDW-4850A |
AC input | ||||
Voltage | 220VAC±15%/1phase or 220/380/400/415/460VAC/3Phases or 110V/220VDC±10% | |||
Frequency | 45Hz-65Hz | |||
Efficiency | >92% | |||
Power factor | >0.93 | |||
DC output voltage | 48VDC | |||
Voltage range | 40-58VDC | |||
Current | 0-20A | 0-25A | 0-30A | 0-50A |
Power(W) | 1160W | 1450W | 1740W | 2650W |
Soft-start time | 3-8s | |||
Current accuracy | ≤±1% | |||
Ripple | ≤200mV | |||
Voltage accuracy | ≤±0.5% | |||
Current sharing | ≤±3% (Current sharing imbalance for modules in parallel) | |||
Communication | RS485/Modbus | |||
Noise | ≤50db | |||
Cooling | Natural cooling with radiator or forced fan | |||
Temperature | (-)10℃ to 40℃ | |||
Storage temperature | (-)40℃ to 60℃ | |||
Altitude | ≤2000M | |||
Protection | Input overvoltage,undervoltage,output overvoltage,undervoltge,overtemperature,reverse connection, | |||
Insulation resistance | Input/output to chassis,inputto output>10MΩ | |||
Dielectric strength | Impose 2000VAC between input/output chassis for 1min, | |||
Module size | 218x116x260 | 218x116x260 | 218x116x260 | 263x139x391 |
Module weight(KGS) | 5.5 | 6 | 7.5 | 9.5 |
Charger size | 800x600x2260 |