# Benefits Of Low Frequency Power Inverter
◇ Low frequency power inverter pure sine wave output;
◆ High efficiency toroidal transformer lower loss ;
◇ Intelligent LCD displays various operating states of inverter;
◆ AC charge current 0-20A adjustable; battery capacity configuration more flexible;
◇Three types working modes adjustable:AC first, DC first, energy-saving mode;
◆ Low frequency solar inverter with frequency adaptive function, adapt to different grid environments;
◇ Added fault code query function,facilitate user to monitor the operation state in real time;
◆Supports diesel or gasoline generator input, adapt any tough electricity situation;
◇ RS485 communication port/APP optional.
# WD Series Low Frequency Power Inverter
The low frequency solar inverter, is a converter that converts direct current (battery, battery bank) into constant frequency and constant voltage or frequency and voltage regulated alternating current (usually 220V, 50Hz pure sine wave). It is composed of inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc.
In short, the low frequency power inverter is an electronic device that converts low voltage (12/24/48V) DC power into 220V AC power. We are in a mobile era, mobile office, mobile communication and mobile leisure. In the mobile state, not only the low-voltage DC power supplied by the battery or battery bank is needed, but also the 220 V AC power which is indispensable in the daily environment. The low frequency inverter charger can meet the demand.
Scope of use of low frequency solar inverter:
1) Use of office equipment (such as computers, fax machines, printers, scanners, etc.);
2) Use of home appliances (such as game consoles, DVDs, stereos, video cameras, electric fans, lighting fixtures, etc.);
3) Or when it is necessary to charge the battery (cell phone, electric shaver, digital camera, video camera, etc.).
# Low Frequency Solar Inverter Details
# Low Frequency Solar Inverter Application
# Low Frequency Inverter Charger Specification
|Start Motor||0.5HP||1HP||1.5HP||2HP||3HP||3HP||3HP||4HP||4HP||5HP |
|Max AC charging current||0A~20A（Depending on the model，The maximum charging power is 1/4 of the rated power）|
|Built-in solar controller charging current (optional)||10A~60A(PWM or MPPT)||24/48V(PWM:10A~60A/MPPT:10A~100A)||48V(PWM:10A~120A/MPPT:10A~100A) /|
96V(50A/100A(PWM or MPPT))
|Packing Size(L*W*Hmm)||405x230x340(1pc) / 475x415x350(2pc)||475x265x410||545x315x550|
|Rated Power ||8KW||10KW||12KW||15KW||20KW||25KW||30KW||40KW|
|Start Motor ||5HP||7HP||7HP||10HP||12HP||15HP||15HP||20HP|
|Max AC charging current|
0A~40A（Depending on the model，The maximum
charging power is 1/4 of the rated power）
|0A~20A（Depending on the model，The maximum charging power is 1/4 of the rated power）|
|Built-in solar controller charging current (optional)|
|N.W.(kg)||66||70||77||110||116||123||167 ||192 |
|Input||DC Input Voltage Range||10.5-15VDC（Single battery voltage）|
|AC Input Voltage Range|
73VAC~138VAC(110VAC）/ 83VAC~148VAC（120VAC） / 145VAC~275VAC（220VAC） / 155VAC~285VAC（230VAC） / 165VAC~295VAC（ 240VAC） （700W~7000W）
92VAC~128VAC(110VAC） / 102VAC~138VAC（120VAC） / 185VAC~255VAC（220VAC） / 195VAC~265VAC（230VAC） / 205VAC~275VAC（ 240VAC） (8KW~40KW)
AC Input Frequency Range
|AC charging method||Three-stage (constant current, constant voltage, floating charge)|
|Output Voltage(Battery Mode)||110VAC±2% / 120VAC±2% / 220VAC±2% / 230VAC±2% / 240VAC±2% |
|Output Frequency(Battery Mode)||50Hz±0.5 or 60Hz±0.5|
|Output Wave(Battery Mode)||Pure Sine Wave|
|Output Voltage(AC Mode)||110VAC±10% / 120VAC±10% / 220VAC±10% / 230VAC±10% / 240VAC±10%（700W~7000W）； Follow input（8KW~40KW）|
|Output Frequency(AC Mode)||Follow input|
Output waveform distortion
|No load loss(Battery Mode)||≤1% rated power|
|No load loss(AC Mode)|| ≤2% rated power（ charger does not work in AC mode）|
|No load loss(Energy saving Mode)||≤10W|
|VRLA Battery||Charge Voltage :14.2V; Float Voltage:13.8V(Single battery voltage)|
Charging and discharging parameters of different types of batteries can be customized according to user requirements
(charging and discharging parameters of different types of batteries can be set through the operation panel)
|Battery undervoltage alarm||Factory default: 11V（Single battery voltage）|
|Battery undervoltage protection||Factory default: 10.5V（Single battery voltage）|
|Battery overvoltage alarm||Factory default: 15V（Single battery voltage）|
|Battery overvoltage protection||Factory default: 17V（Single battery voltage）|
|Battery overvoltage recovery voltage||Factory default: 14.5V（Single battery voltage）|
|Overload power protection||Automatic protection (battery mode), circuit breaker or insurance (AC mode)|
|Inverter output short circuit protection||Automatic protection (battery mode), circuit breaker or insurance (AC mode)|
|Temperature protection||>90°C（Shut down output）|
|A||Normal working condition, buzzer has no alarm sound|
|B||Buzzer sounds 4 times per second when battery failure, voltage abnormality, overload protection|
|C||When the machine is turned on for the first time, the buzzer will prompt 5 when the machine is normal|
Inside Solar controller
|Charging Mode||PWM or MPPT|
|PV Input Voltage Range|
PWM: 15V-44V(12V system); 30V-44V(24V system); 60V-88V(48V system); 120V-176V(96V system)；240V-352V(192V system) ；300V-400V(240V system)； 480V-704V(384V system)
MPPT: 15V-120V(12V system); 30V-120V(24V system); 60V-120V(48V system); 120V-240V(96V system)；240V-360V(192V system)；300V-400V(240V system)；480V-640V(384V system)
Max PV Input Voltage(Voc)
(At the lowest temperature)
PWM: 50V(12V/24V system); 100V(48V system); 200V(96V system)；400V(192V system)；500V(240V system) ;750V(384V system)
MPPT: 150V(12V/24V/48V system); 300V(96V system)；450V(192V system)；500V(240V system) ;800V(384V system)
PV Array Maximum Power
12V system: 140W(10A)/280W(20A)/420W(30A)/560W(40A)/700W(50A)/840W(60A)/1120W(80A)/1400W(100A);
24V system: 280W(10A)/560W(20A)/840W(30A)/1120W(40A)/1400W(50A)/1680W(60A)/2240W(80A)/2800W(100A);
48V system: 560W(10A)/1120W(20A)/1680W(30A)/2240W(40A)/2800W(50A)/3360W(60A)/4480W(80A)/5600W(100A)/6720W(PWM 120A)/5.6KW&11.2KW(MPPT 100A/200A);
96V system: 5.6KW(50A)/11.2KW(100A)；192V system: (PWM:11.2KW(50A)/22.4KW(100A)) / (MPPT:11.2KW(50A)/11.2*2KW(100A));
240V system: (PWM:14KW(50A)/28KW(100A)) / (MPPT:14KW(50A)/14*2KW(100A))；384V system: (PWM:22.4KW(50A)/44.8KW(100A)) / (MPPT:22.4KW(50A)/22.4*2KW(100A))
|Maximum conversion efficiency||>95%|
|Working Mode||Battery First/AC First/Saving Energy Mode|
|Thermal method||Cooling fan in intelligent control|
|Communication(Optional)||RS485/APP（WIFI monitoring or GPRS monitoring）|
|Elevation||2000m（More than derating）|
|Humidity||0%~95% ,No condensation|
|Note: All specifications are subject to charge without prior notice
# Why Choose Us？
Xindun have 20+ senior engineer and is at the top of the industry.ISO 9001:2015,ISO 14001:2015,10+ Software Copyright,20+ Patent Certificates, 50+ Honorary Certificates.
We can provide customized services: logo, machine appearance,special voltage and power, etc. The products you see on other website which is same with us, they are all from Xindun Power.
The warranty of Xindun products is 2~3 years(Industry-wide warranty is 1 year).
Xindun's product failure rate is within 5%, which is far lower than the average in the industry. We promise to solve the after-sales problems within 48 hours.We have cooperated with many customers for more than 10 years,without perfect after-sales service, they cannot always choose xindun!
# About Xindun Power
Guangdong Xindun Power Technology Co.,Ltd-Takes innovation as the core, grasps the leading photovoltaic power generation technology, and joins the advanced industrial Internet of things and big data technology to realize the successful application of cloud computing in the field of energy management. In the industry for more than 15 years of outstanding performance, let us become a strong influence in the field of companies.
★Main Market-Africa, Middle East, Asia & South America. (Ukraine, Russia, Vietnam, Pakistan, Nigeria, Kenya, South Afriac, Ghana, Thailand,Philippines, etc.)
★Factory-7000+Square Meters, 100+ workers
★Product Range-solar inverter,3 phase inverter,hybrid inverter,UPS,solar charge controller,solar power system,mini solar dc system
★Department-R&D, Production, Sales, Marketing, Purchasing, QA, After-sale service department
★Certificate-ISO 14001:2015, CE, IEC, TUV etc.
★Patent-Software Paten, Design Patent, Project Pantent
# Qualifications and Certificates
# Factory Workshop
We have nearly 8,000 square meters of standard solar inverter production factory, advanced R&D testing capabilities and hybrid solar inverter production equipment.Strict quality inspection and manufacturing process control.
# Low Frequency Solar Inverter Package and Delivery
# Our Respected Global Customers
# Frequently Asked Questions
Q1:What is a pure sine wave low frequency solar inverter?
A1:The low frequency inverter is a DC/AC converter, which is designed with high-frequency pulse width modulation technology and microcomputer control technology to convert the DC power supply of the battery pack into an AC power supply with stable output voltage and frequency. Moreover, it has high conversion efficiency and strong nonlinear load driving ability.
Q2:What are the application of low frequency inverter charger?
A2:The low frequency inverter is widely used in fire protection, building electrical, power plant, communication, subway, railway, aerospace, power, medical, national defense, energy and other projects and industries to provide all-round, stable and reliable power support.
Q3:What is the difference between low frequency inverter and high frequency inverter?
A3:In case of low power, the cost of low frequency inverter is higher than that of high frequency inverter, and its weight and volume are larger than those of high frequency inverter with the same power. However, the reliability of the low frequency inverter is higher than that of the high frequency inverter, which is not easy to be damaged, and has the ability to carry impact loads.
Q4:How to select the proper low frequency power inverter?
A4:The principle of selecting inverter is to determine according to the electrical characteristics of the load. The resistive load (such as incandescent bulb) uses the modified wave, and the inductive load (such as motor) uses the pure sine wave inverter. The prices of the two inverters vary greatly.
Q5:What are the solar inverters manufactured by Xindun Power?
A5:Off grid inverter, on off grid inverter, low frequency inverter, high frequency inverter, hybrid inverter, single phase and three phase inverter, and solar power system products such as solar controller, battery, solar panel.