What are the main types of fire emergency power supply? EPS emergency power supply generally consists of main power supply and emergency power supply. The main power supply usually comes from the power system or the power grid. The role of the emergency power supply is attack problem when the main power supply and power outages, to ensure that a variety of fire equipment, fire water, fire elevator, smoke indication equipment, emergency lighting and scattered, emergency radio, electric fire doors and Windows, shutter, automatic save equipment) and fire control room can still running. Setting EPS emergency power supply in fire power supply is one of the important measures to ensure power supply from fire power supply to fire power load.
At present, there are three types of fire emergency power supply: the special feeder line for independent normal power supply; Diesel fuel diesel generator set made by ourselves; Power supply for alternating current and dc by battery group. As an emergency power source (so-called static EPS), the battery group can be divided into dc static EPS and ac static EPS.
EPS, both dc and communication about the battery charging complete * * * *, maintenance and protection, to ensure that the battery in emergency cases, able to at full capacity status is the key of the EPS emergency power supply reliable work. Now, in the fire power in many applications of EPS, static series is generally selected about battery charging converged on type charging method, is performed by a converged on type charging equipment of series batteries. The advantage of this charging method is that the charging equipment is simple and cheap. Lack of is the battery, uneven, show some simple battery charger, part of the battery charger, charging that the phenomenon of lack, resulting in lack of battery capacity, battery damage or shorten battery life spans.
Overcoming the lack of convergence charge, a balanced charge is proposed. This type of charging is equipped with a separate charger for each battery. By charging and protecting each battery separately, the balanced charging of the battery pack can be ensured without the unbalanced charging of each battery. In addition, by improving the design of each charging module, it can ensure that each battery will not be undercharged or overcharged.