SI Series Solar Inverter Characteristics:
● With super energy-saving standby function.
● With super powerful protection mechanism and intelligent self-awakening function.
● With the function of automatic detection and adaptation of grid power strength.
● With intelligent output function, priority guarantee the power supply for important loads.
● Support WIFI intelligent monitoring system.
● MPPT maximum power tracking solar power.
● Pure sine wave output, suitable for home and office.
● Use LCD display, support high-definition touch screen display module.
● Intelligent air cooling design to reduce noise.
● The two modes of AC priority and DC priority can be switched freely online.
● The DC priority mode supports the full range of DC voltage coverage to freely set the switching point.
● Ultra-low power consumption, ultra-high efficiency low frequency isolation architecture.
● The standard design of household lithium battery energy storage, perfectly matched to the lithium battery system.
Basic system architecture
1.DC priority mode:
When the photovoltaic energy is sufficient, the energy is output to the load through the inverter after MPPT tracking, and the excess energy is input to battery packs for charging.
When the photovoltaic energy is insufficient, the solar energy and the battery packs supply power to the inverter at the same time or the mains bypass operation. When the battery energy recovers during bypass operation, it automatically switches back to the inverter output.
2.AC priority mode:
After this mode is enabled, as long as the mains input is normal, the system will switch to the mains bypass output, and then switch to the battery inverter power supply when the mains is abnormal.
3.Super energy-saving standby mode:
After the energy saving mode is enabled, the machine automatically enters the standby state, and the batteries are charged by solar energy. If the AC input and solar energy input are abnormal, the machine will automatically shut down; when the AC input or solar energy input returns to normal, the machine will automatically start and enter standby mode.
4.Intelligent output function:
The loads are divided into the important load which need priority to power supply and general load. The system automatically controls the power distribution according to the remaining energy, to ensure that priority supply to important loads. In the case of limited batteries and photovoltaic panels configuration, which can extend the backup power supply time of important loads as much as possible.
Inverter | BK-SI-3K | BK-SI-5K |
3000W | 5000W | |
DC48V | DC48V | |
Size (mm) | 600*310*180 | 700*400*200 |
Weight (KG) | 30±1 | 40±1 |
Mains Input Parameters | ||
Input Waveform | Pure Sine Wave | |
Input voltage range | (165--265)Vac |
Input frequency range | (45-65)Hz | |
Output | Same as input | |
Overload / short circuit protection | Breaker off | |
Efficiency | >99% | |
Conversion time (AC to DC) | 5ms | |
Conversion time (DC to AC) | 5ms | |
Maximum input current | 17A/28A | |
Charging capacity | 20A/30A | |
Inverter Output Parameters | ||
Output waveform | Pure sine wave | |
Rated capacity/power | 3000w | 5000w |
Output power factor | 0.9~1.0 | |
Rated output voltage | 220Vac | |
Rated output frequency | 50Hz ± 0.1Hz | |
Output frequency automatic tracking | 50Hz @45-55Hz
60Hz @55-65Hz |
|
Output voltage deviation | 220Vac±2% | |
Efficiency | 93%MAX | |
Overload protection | (100%<Load<120%)±5%: The output voltage is disconnected after 30 seconds.
(120%<Load)±5%: The output voltage is disconnected after 1 second. |
|
Peak capacity | 6000VA | 10000VA |
Rated battery voltage | 48Vdc/51.2Vdc | |
Battery low voltage protection | (40--47)Vdc | |
Battery high voltage protection | (63.0±1)Vdc | |
Non-load loss | <40w | |
Super energy saving | <10w | |
PV Solar Input Parameters | ||
Input open circuit voltage range | (75--150)Vdc | |
Maximum input current per circuit | 40A |
Total output power | 50A | 100A | |
Battery charging current | (20--50)A | (20--100)A | |
Temperature coefficient | -18mV/℃/12V | ||
Automatic temperature compensation | Rated output voltage value - (ambient temperature -25 ℃) * 0.072 | ||
Wind Energy Input Parameters | |||
Input voltage | xx | ||
Rated power | xx | ||
Lithium Battery Parameters | |||
Specification | BK-SI-Li48 | BK-SI-Li512 | |
Size (mm) | 700*400*200 | ||
Weight (KG) | 40 | 45 | |
Rated power | 48Vdc 100A(4.8kwh) | 51.2Vdc 100A(5.12kwh) | |
Environmental parameters | |||
Relative humidity | <90% | ||
Operating temperature | 0℃--45℃ | ||
Storage temperature | -15℃--60℃ | ||
Altitude | <3000m (Over 1000m, the rating power will be decreased 10% for every 1000m increase) |
Model | BK-NK-3KW | BK-NK-5KW | ||
3000W | 5000W | |||
DC48V | DC48V | |||
Size (mm) | 600*310*180 | 650*360*180 | ||
Weight(KG) | 30±1 | 40±1 | ||
Grid (Mains) parameters | ||||
Input voltage waveform | Pure Sine Wave(mains or generator) | |||
Input voltage | 220Vac | |||
Working voltage range | (165--265)Vac | |||
Frequency range | (45-65)Hz | |||
bypass output voltage waveform | Same as Input Waveform | |||
Overload protection | Breaker On | |||
Short circuit protection | Breaker On | |||
Power efficiency | >95% | |||
Switching time (AC to DC) | 5ms | |||
Switching time(DC to AC) | 5ms | |||
Bypass Max input current | 17A/28A | |||
MAX charge BAT current | 20A/32A | |||
Inverter parameters | ||||
Output voltage waveform | Pure sine wave | |||
Rated output capacity(VA) | 3000 | 5000 | ||
Rated output power(W) | 3000 | 5000 | ||
PF | 0.9~1.0 | |||
Rated output voltage(V) | 220Vac | |||
Rated output frequency (Hz) | 50Hz ± 0.1Hz | |||
Auto track main frequency(Hz) | Yes (from the first start)
50Hz @45-55Hz 60Hz @55-65Hz |
|||
Output voltage range | ±2% rms | |||
Efficient | >80% | |||
Overload protection | (100%<load capacity<120%) ±5%: after 30S cut off output voltage
(120%<load capacity) ±5%: after 1s cut off output voltage |
|||
Peak capacity | 6000VA | 10000VA | ||
Rated DC input voltage | 48V | |||
Min DC voltage | 40V | |||
Low DC Alarm Voltage | (44.0±1)Vdc | |||
Low DC Cut-off Voltage | (40--44)Vdc | |||
High DC Cut-off Voltage | (63.0±1)Vdc | |||
High DC Recovery Voltage | (61.0±1)Vdc | |||
No Load Power consumption | ≤5% | |||
Standby Power Consumption | ≤0.5% | |||
PV parameters | ||||
PV input OC voltage range | (75--150)Vdc | |||
MAX input current | 40A | |||
MPPT output current(MAX) | 60A | 100A | ||
charging bat current | (20--60)A | (20--99)A | ||
Temperature coefficient | -18mV/℃/12V | |||
Auto temperature compensation | Setting value-(MAX -25℃)*0.018 | |||
Output voltage lines wave-peak | 200mV | |||
Wind parameters | ||||
Input voltage | xx | |||
rating input power | xx | |||
MAX input current | xx | |||
Environment | ||||
Humidity | <90% | |||
Operating Temperature | 0℃--55℃; within 35℃--55℃,the rated output power had to reduce 2% when the temperature increase 1℃(if overload,the system maybe reduce the power automatically,even shut down) | |||
Storage Temperature | -15℃--60℃ | |||
Altitude | <3000m(more than 1000m,the rating power of each increase of 1000m decreased by 10%) |
Standard lithium battery energy storage system configuration table:
System specifications | 3K | 5K | 5K-plus |
Inverter | BK-SI-3K | BK-SI-5K | BK-SI-5K |
Lithium battery packs | BK-SI-Li48(4.8kwh) | BK-SI-Li512(5.12kwh) |
PV solar panels specifications | Open circuit voltage 40V | ||||
Power capacity 330W | |||||
Number of PV solar panels (pcs) | 9 | 15 | 18 | 21 | 24 |
Number of lithium batteries (pcs) | 1 | 1 | 2 | 3 | 4 |
85% load backup time (hours) | 1.6 | 1 | 2 | 3 | 4 |
External MPPT | 0 | 0 | 50A | 100A | |
PV combiner box | 0 | 0 | 2 (4 In 2 Out) | ||
Compared with lead-acid batteries | Under the same conditions, the service life of lithium batteries is about 5 times that of lead-acid batteries. |
Standard lead-acid energy storage system configuration table:
System Specifications | 3K | 5K | 5K-plus | ||
Inverter | BK-SI-3K | BK-SI-5K | BK-SI-5K | ||
Lead-acid batteries | Rated voltage 12Vdc | ||||
Rated capacity 100AH | Rated capacity 120AH | ||||
PV solar panels specifications | Open circuit voltage 40V | ||||
Power capacity 330W | |||||
Number of PV solar panels (pcs) | 9 | 15 | 18 | 21 | 24 |
Number of lead-acid batteries (pcs) | 4 | 4 | 8 | 12 | 16 |
85% load backup time (hours) | 1.3 | 1 | 2 | 3 | 4 |
External MPPT | 0 | 0 | 50A | 100A | |
PV combiner box | 0 | 0 | 2 (4 In 2 Out) |
Q: Why choose us?
A: We are China Leading ups&solar system Manufacturer, 11 years experience in producing and marketing
ups & solar products.
100% QC inspection Before Shipment.
Best Quality & Best Service with Competitive price.
Good after-sale service: 2 years warranty and if possible we provide on-site installation and repairing
All of our products have the CE certificate, ISO9001,ISO14001,OHSAS18000,TLC authentication, and Chinese
energy conservation certification
Market covers the 100 cities and countries all over the world. Have branch office in Pakistan, Australia, etc.
If you have some problems about SI series Household Lithium Battery Energy Storage System, or want to know more details about 3 phase ups,3 phase ups system,480 volt 3 phase ups,3 phase ups price,3 phase ups specification,etc. Welcome to contact us!
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