Advantages of second hand generator emergency power supply as backup power supply
Publisher: Administrator Date：2021-03-05
Today, let’s talk to you about the advantages of second-hand generator emergency power supply as a backup power supply? EPS emergency power supply is a high-tech environmentally friendly product produced by applying inverter technology, using CPU control, digital circuits, and highly integrated electronic components. Mainly composed of inverters, auxiliary power supplies, rectifier chargers, batteries, controllers, etc., to provide secondary or tertiary power for primary and secondary loads, particularly important electrical equipment, fire-fighting facilities, and emergency lighting. EPS maintenance is simple, can be unattended, can be fire-fighting linkage, automatic operation, can also achieve remote or building intelligent monitoring and its start-up time is 0.1S, which is much shorter than the start-up time of diesel generator sets, and the total investment is similar to that of diesel generator sets.
What are the advantages of second-hand generators as a backup power source
The general working principle of EPS emergency power supply: When the mains input is normal, the normally open contact of the relay is closed, and the mains intelligently charges the battery through the charger. When the mains power is interrupted or abnormal, the controller starts the inverter or inverter, and at the same time, the normally open contact of the control relay is closed, and the DC of the battery is transformed into AC power through the inverter or inverter to supply the load. This machine adopts IGBT devices and SPWM inverter technology and advanced intelligent CPU control. It has simple structure, reliable performance, sine wave voltage stabilization and frequency output, automatic switching, and fire linkage. It is mainly suitable for evacuation lighting, accident lighting, water pumps, and fans. Wait. The company provides emergency power supply with centralized power supply. The installation methods can be divided into hanging type, embedded installation and floor type. The emergency time is generally 90 minutes.
There are many specifications of EPS emergency power supply. According to the input mode, it can be divided into single-phase 220V and three-phase 380V; according to the output mode, it can be divided into single-phase, three-phase, and single-phase and three-phase mixed output; installation forms include floor-standing, wall-mounted, and embedded wall There are three types; the capacity has various levels from 0.5KW to 800KW; according to the service object, it can be divided into two types: power load and emergency lighting; its standby time is generally 90-120 minutes, and if there are special requirements, the standby time can be configured according to the design requirements . Therefore, EPS emergency power supply can meet the needs of general engineering.
There are many issues to consider when using second-hand generators. When designing a second-hand generator room, a series of issues need to be considered: the size of the second-hand generator room, the transportation channel of the unit, the setting of air intake and exhaust vents, and the flue. In addition, the environmental protection company must be asked to conduct the second-hand generator room. Special environmental protection design to make the noise and flue gas emission meet the requirements. Moreover, when doing fire protection design, because of the existence of second-hand generator sets, a CO2 gas fire extinguishing system must be added. Therefore, every time when designing a second-hand generator set, it is necessary to repeatedly coordinate, not only to consider the aesthetics of the building, but also to meet the requirements of the operation of the second-hand generator set.
Shenzhen Sanxinda power supply equipment is a professional power supply manufacturer that produces electroplating power supply, electrolysis power supply, oxidation power supply, electrophoresis power supply and surface treatment power supply. The company adheres to the business philosophy of quality-oriented, energy-saving, and environmental protection, and strives to provide users with high-performance, high-efficiency, and high-reliability surface treatment power equipment.
SXD-PWH series high frequency switching power supply is a high frequency switching power supply originally developed and successfully developed by our factory. It has a completely different working principle from the previous power frequency silicon controlled rectifiers. It generates low voltage and large current output through the input high voltage AC rectifier-high voltage filter-high voltage and high frequency regulation-low voltage and high frequency rectification. Its working principle determines that the power supply has higher conversion efficiency and higher current conversion efficiency than the silicon controlled rectifier. Power factor has become the preferred power supply product for many customers. Using this power supply can significantly reduce production costs and improve product quality. Compared with thyristor power supplies, production energy consumption can be reduced by 20%-30%, bringing considerable economic benefits to users . The power supply is small in size and light in weight (water-cooled is smaller than air-cooled), and it is very easy to install and use, which can save valuable production space for users. The main power high frequency transformer of SXD-PWH series high frequency switching power supply adopts imported nano crystal/ultramicro crystal, high permeability material as the magnetic core, which is small in size and high in efficiency.
High-frequency and high-power switching components (IGBT), power drive modules, and three-phase bridge stack are all selected from international famous brands such as Mitsubishi, Fuji, Freetech, Germany, etc. The circuit board components are all selected from famous manufacturers. Our company has developed a unique water-cooled high-frequency electroplating power supply (patent pending), which has better cooling effect, anti-salt spray acidification, increases the service life of the power supply in harsh environments, and has stronger corrosion resistance, which can greatly extend the service life of the power supply. The water discharged from the machine is free of any pollution and can be recycled and reused!
SXD-PWH series high frequency switching power supply has complete protection functions: input phase loss, undervoltage, overheating, overcurrent, short circuit protection, safe and reliable.
The SXD-SS-SR series high frequency switching power supply has the following advantages compared with the ordinary switching power supply in the same market:
1. The full-bridge phase-shift soft switching control method is adopted to eliminate the switching stress to the greatest extent, and the world's latest full-bridge soft switching control IC is adopted, which has the function of automatically adjusting and setting the trigger pulse sequence parameters to achieve the best IGBT switching time. The IGBT switching loss is minimized, and the IC with its own synchronous rectification drive function is adopted, which simplifies the synchronous rectification drive circuit. Make its work more stable and reliable.
2. Adopt advanced logic interlock control circuit to eliminate pulse false trigger and overcome bridge arm short circuit.
3. It eliminates the magnetic bias problem, mainly in the following two aspects:
(1) The primary transformer of the main transformer uses series blocking capacitors
(2) Add an automatic bias correction circuit
4. Using foreign original imported MOS tubes as secondary side rectifiers, and using advanced and reliable special imported synchronous rectification module technology, the efficiency of this high-frequency switching power supply is about 15% higher than that of similar ordinary rectifying switching power supplies under low voltage and high current conditions.