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5. Using time of battery
1. Current and voltage:
The battery is used to supply the DC input voltage required by the product, and
its rated voltage must be in line with the rated input voltage of the inverter, beyond
the input voltage range of the inverter, and the cross connection will cause the
product to be under voltage or under voltage protection.
At the same time, the battery must provide enough current for inverter, a small
capacity battery is not able to drive high power appliances, in this case, usually due
to excessive current and battery discharge the battery terminal voltage low,
undervoltage protection products appear
The simple formula for the battery current is the load power / the battery voltage.
As the inverter itself will be part of the loss, so the actual current will be greater than
this value of about 10%. For example: the battery voltage is 12VDC, the load power
is 400W, then the actual current size of the battery is about 400W÷12Vx110%=37A
2. Battery working time
The using time of battery depends on battery capacity (AH) and the power of the
connected load (W), the calculating method is: Time (hours) =battery capacity (AH)
× battery output voltage (V) x efficiency rate ÷ electrical power of using (W) such as
the 12V DC input inverter uses the 12V battery, if the battery capacity is 200AH and
at this time the inverter is driving 400W power load, the efficiency rate is 90% when
the battery is full, according to the formula above, the battery use time
=200(AH)÷(400÷12x110%) = 5.4 (Hour). This means the battery can be used for 5.4
hours.
Notice:
The nominal battery capacity is the discharge capacity in 20 hours
discharge rate ,under the condition when the discharge current exceeds this value,
the discharge capacity will be reduced, the corresponding discharge time will be
shortened than the calculation value, this part of the specification can refer to
battery manufacturer,and whether the battery fully charged will also affect the
results.
6. CONNECTION
1). Grounding
The power inverter has a terminal on the back panel marked "Grounding" or " ".
This is used to connect the chassis of the power inverter to the ground.
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4. Assembe
1. The position of Mounting
First ensure that there is enough space to install the inverter, while the installation
location must meet the following requirements:
(1) Drying: Do not use water or other liquids dripping on the inverter
(2)Cool: a working environment temperature of the product is 0-40
℃
, preferably a
temperature of 10-25
℃
, at a temperature as low as possible within this range
(3) Ventilation: There should be a certain distance between inverter and other
objects, to avoid blocking the products vents.
(4) Clean: Do install the products in the dusty, wood chips or other particles , If
cooling fan is turned on, the particles involved in the inside of the product, thus
affecting the normal work.
(5)While inverters and batteries connected, will produce arcs or sparks, so there
should not be around flammable objects such as gasoline, alcohol, etc.
2. Assemble the inverter
For this big power inverter, because of the heavier weight, preferably mounted on
a solid platform, such as floor, table or mounting bracket fine. In order to avoid
falling off, platform for supporting the product should can bear the weight of
sufficient capacity, and it is good with four screws to secure the product.
Note:
In case not connected to the remote box, the product can also be used as a
normal modified sine wave inverter as normal.
3. Remote controller box
Normal working indicator
Remote interface
Connecting wire
Fault indicator
Power switch
(Switch)