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SHANGYU POWER CHINA (www.chinapowersy.com) specializes in various specifications of UPS power supplies, precision air conditioners, charging piles, EPS emergency power supplies, etc. The company has 3C fire protection certification and has obtained more than 70 soft certificates. 100 invention patent certificates. It is a national high-tech enterprise and a Shenzhen technology-based small and medium-sized enterprise. For more than 10 years, Shangyu has been adhering to the business philosophy of conquering customers with quality, impressing customers with price, moving customers with service, and winning customers with trust. The market share of Shangyu products has increased by 5% year by year. Shangyu is willing to cooperate with you for a win-win situation. , create brilliance together!
The EPS emergency power supply set up according to specific needs is advanced and practical in the fire power supply industry. It can realize microcomputer monitoring and processing, and can be used for fire emergency lighting, emergency mercury lamps, fire elevators, water pumps, smoke exhaust fans and other fire protection facilities. Automatic control. EPS uninterruptible power supply provides emergency lighting power supply for important places such as high-rise buildings, telecommunications network rooms, hospitals, financial centers, civil aviation airports, exhibition venues, theaters, government offices, subways and light rails, commercial real estate, petrochemicals, shopping malls and supermarkets.
The EPS emergency power system mainly includes rectifier charger, battery pack, inverter, mutual switching device and system controller. Among them, the inverter is the core. DSP or single-chip CPU is usually used to perform SPWM modulation control on the inverter part to obtain a good AC waveform output. The function of the rectifier charger is to realize timely charging of the battery pack when the mains input is normal. Charging; the function of the inverter is to convert the DC power stored in the battery pack into AC output when the mains power is abnormal, supplying stable and continuous power to the load equipment; the mutual switching device ensures that the load is between the mains power and the inverter output. Smooth switching; the system controller controls the entire system in real time, and can send out fault alarm signals and receive remote linkage control signals, and can realize remote monitoring of the EPS system from the host computer through standard communication interfaces.
The basic working principle of EPS is:
⑴ When the mains power input is normal, the input mains power supplies power to important loads through the mutual switching device. At the same time, the system controller automatically detects the mains power and manages the charging of the battery pack through the charger. Usually the capacity of the EPS charger is only equivalent to 10% of the battery pack capacity (Ah). It only needs to provide the battery pack float charge or supplementary power function, and does not need to have the ability to directly provide DC power to the inverter. At this time, the mains power supplies power to the user's emergency load through the mutual switching device in the EPS. At the same time, under the control of the EPS system controller, the inverter stops working and automatically shuts down. The user load actually uses the grid power supply at this time. At this time, it is usually said that the EPS emergency power supply is in a sleep state, which can effectively achieve the effect of energy saving.
⑵ When the input mains power supply is interrupted or the mains voltage exceeds the limit (±15% or ±20% of the rated input voltage), the system controller commands the mutual switching device to switch to the inverter within a short period of (0.1~4) S The EPS system supplies power to user loads with the support of DC energy provided by the battery pack.
⑶ When the input mains voltage returns to normal operation, the EPS system controller issues an instruction to shut down the inverter, and also performs a switching operation from the inverter power supply to the AC bypass power supply through the mutual switching switch. After that, the EPS provides mains power to the load through the AC bypass power supply path, and at the same time continues to charge its battery pack through the rectifier charger.
EPS power supply is mainly used in energy-saving power supply, building lighting, road traffic lighting, tunnel lighting, electric power, industrial and mining enterprises, fire elevators, fire pumps and other scenarios. At present, the emergency power supply (EPS) provided by Shangyu SHANGYU POWER CHINA can be divided into powered EPS, lighting EPS and hybrid EPS according to different load conditions. The following are the differences between the three: Item Illuminated EPS Power EPS Hybrid EPS Loading condition 500W-100KW 2.2KW-200KW 2.2KW-400KW Power supply mode Centralized power supply Centralized power supply Centralized power supply Characteristic performance Latest IGBT inverter technology Reduce the impact current by 4-7 times when starting up, variable frequency start function The latest IGBT inverter + pulse width modulation PWM technology Output waveform sine wave SPWM wave SPWM wave Fire linkage Can Can Can Service life 10 years 10 years+ 20 years Unattended Can Can Can Transfer time <5s <0.25s <0.25s Input voltage 220Vac or 380Vac 380Vac 380Vac The output voltage 220Vac 380Vac 380Vac Isolation transformer Yes, output side Yes, output side Yes, output side circuit protection 5 types, short circuit protection, overvoltage/overcurrent/overload/overtemperature protection 5 types, short circuit protection, overvoltage/overcurrent/overload/overtemperature protection 5 types, short circuit protection, overvoltage/overcurrent/overload/overtemperature protection Main components Using internationally renowned brands with high reliability Using internationally renowned brands with high reliability Using internationally renowned brands with high reliability scenes to be used Various lamps, halogen lamps, sodium lamps, etc. Various power loads, fire elevators, rolling shutter doors, water pumps, fans, motors, etc. Various lamps and various power loads, elevators, central air conditioners, fire pumps, etc.
Item
Illuminated EPS
Power EPS
Hybrid EPS
