Battery installation, commissioning and maintenance methods
Installation preparation and installation considerations:
Sure batteries installed in a well-ventilated, there is no source of fire and difficult to produce static electricity (2V series battery needed foundation seismic factors) environment. Confirm the batteries and spare parts inventory.
2. Confirm installation ambient temperature in the range of -20 ℃ ~ +60 ℃ ambient temperature of 20 ℃ ~ 30 ℃, extended battery life.
3. Mounting wrench, pliers and other metal tools need to be insulated treated before use, to avoid a short circuit. Installed at the same time should be insulated gloves to prevent electric shock.
In order to obtain the expected service life of the battery, it is best to use the excellent performance of the charging and discharging equipment, the equipment should meet the ± 2% regulation accuracy, the ripple factor should not be greater than 2%, with temperature compensation function (25 ℃ basis), to prevent battery overcharge, charge less and temperature.
5. Installation is connected, be sure to cut off the main power supply, charged installation appears the risk of electric shock, should pay attention to the polarity of the battery connection, non-positive and negative terminals incorrectly.
The battery should be as installed in a place close to the load, in order to avoid an increase in cable length and lead to pressure drop and energy loss.
7 different manufacturers, different types, different models, different voltage, different capacity batteries can not string / parallel together, do not connect it to the power supply outside the rated power, otherwise it will become a fire, and the cause of the failure.
Optional battery models, the battery capacity should be big not small, should string should not principles, the battery out of the box after use multimeter to measure the open circuit voltage of each cell, and verify that the battery voltage is normal.
For the parallel use, they should be the first string and the principle, the same system in parallel with the number of groups is preferably not more than three groups. Parallel groups in individual battery should be adjusted to ensure open and float end of each battery The voltage be consistent.
10. Installation of the battery into a group between the battery should be spaced an appropriate distance to ensure ventilation (natural ventilation, spacing shall not be less than 10 cm; air conditioning time shall not be less than 5 cm distance).
11 Universal colloid and lead-acid batteries, using solar independent power systems or solar phalanx system before the battery should be installed in the system, supplementary charge officially run before, to ensure the good operation of the PV system.
Installed to check the battery polarity connection and terminal connection status, should ensure that the polarity is correct tightening torque to meet the requirements.
2 detects the battery voltage is correct.
Ensure the good condition of the battery pack, the battery equalizing charge (normally takes 16H), before you use it to ensure that the battery in a full state of charge. Discharge testing requirements according to their own use.
Day-to-day use in battery to keep clean, non-debris placed in the battery to prevent leakage. Dust contaminated application does not contain any additives, water purification cleansing, not the battery surface contaminated with gasoline letter that water, kerosene or other volatile organic solvents, is not available to the organic solvent and liquid cleaning battery, or it may cause cracks, leaking battery housing (ABS resin).
2. Should be checked once the connecting cords are loosening and corrosion. Shall promptly if loose tighten, if any corrosion with warm water to clean pollution point.
As the battery is a float for use, not deeper discharge (generally greater than 30% capacity) of the battery every six months, preferably every six months by the relevant national or international standards do a depth of 30 to 50% of the charging and discharging cycle, in order to achieve the expected battery life.
This following positive:
a favor to avoid the battery internal sulfuric acid stratification;
b conducive to find fault the monomer and assess battery pack aging condition;
c. conducive to restore the capacity of the battery and extend battery life;
4 monthly check charging voltage and current specified value, the cell voltage, the environment and the temperature of the surface of the battery, the ventilation, insulation, etc.;
Battery during use, such as the voltage difference between monomer (50mV), the battery should equalizing charge (24H), but also to avoid the following happens:
insufficient charging: charge long enough, it will seriously affect the service life of the battery;
b. overcharge: Overcharge will cause the water in the electrolyte will be a substantial decomposition, battery temperature, and the internal battery the positive and negative grid accelerated corrosion and n, the negative electrode active material loose, thus reducing battery life. serious The battery will swell even explode, fire and other phenomena.
C. overdischarge: overdischarge cause the positive and negative electrode active material to generate the relatively dense lead sulfate layer structure, resulting in the charge when the positive and negative active material is difficult to restore.
The batteries are made by the heavy metals lead and corrosive liquid sulfuric acid, battery replacement or retirement need relevant government regulations for recycling. Should be placed in other unauthorized places, so as not to cause environmental pollution.
Battery discharge immediately after the supplementary charge. The batteries are not to be stored in the discharged state, so as not to produce sulfate, resulting in reduced battery capacity or premature failure.
Do not battery positive and negative short-circuit, to prevent injury or burn out electrical equipment.