Modified sine wave DC AC inverter small inverter

The Modified Sine Wave Inverter is a DC-to-AC inverter with auto line-to-battery transfer and integrated charging system, serving as an extended-run UPS, is a standalone power source or a home inverter as well. It supplies power from AC power and DC source. When AC cable is connected to a wall outlet, utility power goes to connected equipment and/or charges the batteries via the charging system. In battery mode, it automatically converts battery energy into AC power for backing up the connected devices.


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Description of this Modified sine wave DC AC inverter small inverter power inverter module
 
The Modified Sine Wave Inverter is a DC-to-AC inverter with auto line-to-battery transfer and integrated charging system, serving as an extended-run UPS, is a standalone power source or a home inverter as well. It supplies power from AC power and DC source. When AC cable is connected to a wall outlet, utility power goes to connected equipment and/or charges the batteries via the charging system. In battery mode, it automatically converts battery energy into AC power for backing up the connected devices.
Characteristics
● Automatic Line to Battery transfer
● Rack / Tower design, installation versatility
● Adjustable wider input voltage range and charging current
● Intelligent charging control, efficient charging
● Auto restart when mains power is restored
● Superior protection: low battery, overcharge, overload, overtemperature and short circuit
● High load-bearing capacity, supporting various household loads and IT equipment (< 50% half-wave load, < 30% inductive load)
At present, most of the commercially available inverters are mainly modified wave inverters, and the modified waves are suitable for most small-power appliances and are moderately priced, and are easily accepted by the market. This type of modified sine wave inverter can be applied to notebook computers, televisions, combination audio, video cameras, digital cameras, printers, various chargers, PDAs, game consoles, DVD players, mobile devices, home therapy devices, etc. The inverter with a large output power can also be applied to small electric heating appliances such as hair dryers, electric cups, kitchen appliances, and the like. However, it is not suitable for the inductive load electrical appliances such as refrigerators and electric drills to be powered by the modified sine wave inverter for a long time. Otherwise, it may cause damage to the inverter and related electrical products or shorten the expected service life. Because such inductive load appliances require relatively high waveforms for current output.
The difference between the pure wave and the modified wave of the inverter is:
1. Different inverter methods. Pure wave inverters generally use PWM mode inverter, and some even add multi-step inverter, the structure is complex, but the output waveform is good, suitable for inductive and capacitive loads. The modified wave inverter generally adopts a square wave mode inverter, and a few join the step inverter, the structure is simple, but the output waveform is poor, which is not suitable for inductive and capacitive loads.
2. The output filtering method is different. The pure wave inverter generally has a multi-stage LC filtering method to obtain a relatively pure sine wave. The modified wave inverter generally has a single-stage LC filter, and the output approximates the ladder wave.
 
Specification of this Modified sine wave DC AC inverter small inverter
 
 

MODEL

1200 VA

1500 VA

2400 VA

Capacity

720 W

900 W

1440 W

INPUT

 

Rated voltage

220 I 230 I 240 Vac (selectable)

Voltage range

2201 2301240 Vac, -22%1 -59% ~ +26%, t 5 Vac (selectable)

Rated frequency

501 60 Hz (auto-sensing)

Frequency range

±10% (default), ± 5% ~ 15% (selectable)

OUTPUT

 

Power factor

0.6

Output voltage

Battery mode: 220/230 /240 Vac ±10% (selectable)

 

Mains mode:synchronized with utility power

Output frequency

Battery mode: 50 /60 Hz ± 1% (selectable)

Mains mode: synchronized with utilitly power

Output waveform

Battery mode. square wave;

 

Mains mode: synchronized with utility power

Inversion efficiency

≧ 83% (max.)

≧ 85% (max.)

≧ 83% (max.)

Yes

Half-wave load

≦50% (rated load)

Inductive load

≦30% (rated load)

BATTERIES

 

Rated voltage

12 Vdc

24 Vdc

Charging current (Max.)

20/10 A+ 3 A (selectable)

15/ 10 At 3 A (selectable)

Equalizing charge voltage

Single battery 14.2 ±0.3 Vdc (default), 13.6 ~ 15.0 Vdc (selectable)

Floating charge voltage

Single battery 13.6±0.3 Vdc

L oW voltage alarm

Single battery 10.8 ± 0.3 Vdc (default), 9.6 ~ 13.0 Vdc (selectable)

Low voltage shutdown

Single battery 10.2 ±0.3 Vdc (default), 9.6 ~ 12.0 Vdc (selectable)

Overvoltage protection

Single battery 15.0 ±0.3 Vdc

Overvoltage recovery

Single battery 13.6± 0.3 Vdc

SYSTEM

 

Transfer time

≦8 ms (typical) . ≦ 15 ms (max.)

Protections

Overload, short circuit, over-temperature, output over/under-voltage, excessive 

low battery

Overload times (Mains mode)

≧110% for 120s, ≧125% for60s, ≧150% for10s, ≧200% for1 s

Overload times (Battery mode)

≧110% for6os, ≧125% for5s, ≧150% for1 s

Communication interface

No

Panel display

LCD+ LED

OTHERS

 

lOperating temperature

0~ 45°C

Operating humidity

0 ~ 95% (no-condensing)

AItitude

≦1000 m (Above 1000 m, derating 1% for each additional 100 m)

IP rating

IP 20

Cooling

Forced-air coling

Noise

<45dB

Pimensions (W X D x H) (mm)

245x 220x 80

Packaged dimensions (WxDx H)(mm)

315X290x156

Net weight (kg)

2.66

2.68

2.82

Gross weight (kg)

 

3.02

3.04

3.18

 
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