Select Details of coolant/medium for EPS cooling system1 In an...
Are there transformers for fire emergency power EPS？
In the fire emergency power EPS system, the use of transformers is not absolute.
MAIN CONTENT
The basic composition of EPS system
EPS system usually includes chargers, inverters, batteries, isolation transformers, switching switches and other devices. Among them, the isolation transformer is a component used to convert direct current to alternating current and provide isolation protection.
Transformer-free design
There is a special inverter transformer design, which integrates the output reactor and the output transformer through electromagnetic principle and electronic technology, thereby eliminating the output reactor, reducing the distributed inductance of the system, effectively reducing the internal resistance of EPS power output, saving unnecessary copper and iron materials, improving the efficiency of the whole machine and reducing the cost.
Advantages of no transformer
No transformer design can reduce the number of equipment, reduce costs, reduce losses, and facilitate the layout of the main line and production assembly.
The role of the transformer
In some EPS designs, in addition to filtering, isolation and impedance matching, the transformer has an important role is to boost the voltage. If the output transformer is not used, then more battery cells are needed to achieve the same voltage level, or a booster needs to be added to increase the voltage.
Cost considerations
In high-power areas, the cost of adding a booster is no less than the cost of using an output transformer. In low-power areas, the cost of using a booster may be lower than using an output transformer.
CONCLUSION
To sum up, the use of transformers in the fire emergency power EPS system depends on the specific design and application requirements. Some EPS systems have a transformerless design to increase efficiency and reduce costs, while others include transformers due to the need for voltage conversion and isolation protection. Therefore, not all EPS systems contain transformers.
EPS BATTERY SERIES
The centralized power supply for fire emergency lighting is a kind of backup power supply equipment, which provides power guarantee for emergency lighting equipment to ensure that the on-site lighting equipment can operate normally in emergency situations such as fire. Provide a long-term backup power supply to meet the needs of the emergency lighting system.
Extended reading
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