SI series Household Lithium Battery Energy Storage System

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SI series Household Lithium Battery Energy Storage System

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Description:

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.

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●saver mode function.
●all kinds of protections and intelligent self-awaking mechanism.
●automatic detection and adaption of the weak grid.
●intelligent output function,priority guarantee the power supply for the important loads.
●WIFI intelligent monitoring system.
●MPPT maximum tracking solar power.
●pure sine wave output.
●intelligent air cooling design to reduce the noise.
●have AC priority and DC priority running modes,and can be switched freely online.
●Ultra-low power consumption,ultra-high efficiency transformer-based isolation architecture .
●perfect compatibility of the lithium battery system.

Basic System Architecture

The following illustration shows basic application of this inverter.
This inverter can power all kinds of home appliances or office equipment,including motor-type appliances such as tube light,fan,refrigerator and air conditioner.

Basic System Architecture

1.DC priority mode:
When the solar energy is sufficient, it will charge the batteries and at the same time power the load in Pure Sine-wave AC Output form.
When the Battery Bank has been discharged up to certain level（default 47V） and Grid is available, the system will switch to AC working mode(Bypass).If however, Grid is not available the Battery Bank will continues to discharge until the protection level.
When the battery voltage is recovered to the Recovery point(default 55V) , the system will switch to Inverter mode automatically .

2.AC priority mode:
Whenever AC input is normal, the system will run into AC working mode (Bypass), when AC input is abnormal, the system will work into Inverter mode.

3.SAVER mode:
If the SAVER switch turn on, the system will work into SAVER mode, at the same time, the inverter will shut down, and the solar will charge the battery.

4.Intelligent output function:
The loads are divided into important load which need priority to supply and general load. The system automatically control the OUTPUT L2 N2 according to the battery remaining energy, to ensure the important load can working long time.

5.Generator mode function:
If the Generator output wave is not suitable for the inverter to use, then turn on the
GR-SW switch button, the inverter will accept the Generator to power the load and charge the battery. When the generator turn off the inverter will shut down and restart automatically.

Model	BK-SI-3KW					BK-SI-5KW
	3000W					5000W
	DC48V/51.2V
Size (mm)	620350165
Weight(KG)	30±1					35±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	>98%
Switching time (AC to DC)	5ms(except the generator mode)
Switching time(DC to AC)	5ms
Bypass Max input current	17A/28A
MAX charge BAT current	20A/25A
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	>=85% ,92%max(40% line load)
Overload protection	(100%<load capacity<120%) ±5%: after 1min cut off output voltage (120%<load capacity) ±5%: after 1s cut off output voltage
Peak capacity	6000VA				10000VA
Rated DC input voltage	48Vdc/51.2Vdc
Low DC Cut-off Voltage	(40--45)Vdc
High DC Cut-off Voltage	(63.0±1)Vdc
No Load Power consumption	<50W
Standby Power Consumption	<10W
PV parameters
PV input OC voltage range		(85--150)Vdc
MAX input current		30A
MPPT output current(MAX)		50A					100A
charging bat current		(20--50)A					(20--95)A
Max efficiency		96%
Temperature coefficient		-18mV/℃/12V
Auto temperature compensation		Output voltage-（bat temperature-25℃）*0.072
Wind parameters
Input voltage		xx
rating input power		xx
MAX input current		xx
Lithium battery
Module		BFP48100-SI
Size(mm)		620370165
Height(KG)		45
Energy		51.2Vdc 100A（5.12kwh）
Environment
Humidity		<90%
Operating Temperature		0℃--50℃
		Ambient temperature	load	Inverter mode continuous working time				Transformer high temperature protection(switch to AC priority mode or 25 minutes later auto- restart )
		40℃	4.5KW	≥8h				No
			5.0KW	≥7h				Maybe
		45℃	4.5KW	≥8h				No
			5.0KW	≥6h				Maybe
		50℃	4.5KW	≥8h				No
			5.0KW	≥5h				Maybe
Storage Temperature		-15℃--60℃
Altitude		<3000m(more than 1000m,the rating power of each increase of 1000m decreased by 10%)

Standard lithium energy storage system configuration table

System specification	3K	5K		5K-plus
Inverter specification	BK-SI-3K	BK-SI-5K		BK-SI-5K
Lithium battery specification	BFP48100（5.12kwh）
Photovoltaic panels Specifications	Open circuit voltage 40V
Photovoltaic panels Specifications	power 330w
Photovoltaic panels quantity（pcs）	9	15	18	21	24
Lithium battery quantity（pcs）	1	1	2	3	4
85% load backup time（h）	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 specification	3K	5K		5K-plus
Inverter specification	BK-SI-3K	BK-SI-5K		BK-SI-5K
lead-acid battery specification	Rated voltage 12Vdc
	Rated Capacity 100AH	Rated Capacity 120AH
Photovoltaic panels specification	Open circuit voltage 40V
	Power 330w
Photovoltaic panels quantity（pcs）	9	15	18	21	24
lead-acid battery quantity（pcs）	4	4	8	12	16
85% load backup time（h）	1.3	1	2	3	4
External MPPT	0	0		50A	100A
PV Combiner box	0	0		2(4 in 2out)

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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