Mao enjoy electric EPS fire emergency power UPS uninterruptible power supply battery DC panel

EPS is an emergency power system -EmergencyPowerSupply abbreviation EPS Emergency Power Supply is based on fire-fighting facilities, emergency lighting, emergency lighting, a load of power supply equipment consisting of power supply needs. Products from each switch device, automatic battery chargers, inverters and batteries and other components. The inverter does not work on AC power grid is normal, after each vote an important device to load. When the AC power grid after each switch device will immediately switching to the inverter power supply. When the grid voltage is restored, the emergency power supply turn back to the grid. Application of EPS EPS emergency power system includes rectifier charger, battery, inverter, each switch device and a part of the system controller. Wherein the inverter is the core, usually single-chip DSP or CPU portion of the inverter SPWM modulation control, making good AC waveform output; the role of the rectifier charger at the mains input is normal for the battery pack to achieve timely Charging; the role of the inverter is abnormal when the mains, the battery pack is stored DC power is converted into AC power output, stable and sustainable supply of electricity load equipment; each switch device and ensure that the load in the city between the inverter output smooth handover; a system controller of the entire system for real-time control and fault alarm signal can send and receive remote linkage control signal, and through standard communication interface from the host computer remote monitoring EPS System. Emergency power during a power outage can be on different occasions for a variety of electrical equipment power supply. It is suitable for a wide range, strong load adaptability, easy installation, high efficiency. Centralized power supply emergency power to overcome the many shortcomings of other power supply. Reduce unnecessary energy waste. In HazMat, lighting and other electrical properties, it is low conversion efficiency and long-term continuous operation of the UPS uninterruptible power supply, compared with higher cost performance. EPS emergency power supply is mainly used in building fire or other emergency situations occur under the emergency lighting and other lighting (including single into a single metal halide, sodium) to provide centralized power supply emergency power unit. EPS emergency power supply emergency power supply EPS works with single inverter technology, set charger, battery, inverter and control EPS emergency power supply schematic lead is in one. Internal system designed battery detection, detection circuit branch, works the other major components as shown, intelligent emergency power supply, the use of back-up operation mode. (1) when the mains is normal, after each vote municipal electric apparatus to important load, simultaneous detection of mains and battery charge management, then provide DC energy to the inverter from the battery pack. Here, a battery charger is provided only 10% of battery capacity (Ah) of the charging current of the DC power supply to the low-power battery, it does not have the ability to provide DC power directly to the inverter. In this case, various emergency load electricity supply to consumers via the EPS power supply system of AC bypass and switch thereof. At the same time, under the control of the logic control board EPS inverter stop working in automatic shutdown state. Under these conditions, the power user loads the actual use of electricity from the grid, therefore, EPS emergency power supply is often said that has been working in sleep mode, it can effectively achieve the energy saving effect. (2) when the mains power supply is interrupted or overrun mains voltage (± 15% or ± 20% of rated input voltage), each switch device will immediately switching to the inverter power supply, DC energy in the battery pack provided support, this time, the user load power supply is used by EPS inverter converts AC power, not from the mains. (3) When the mains voltage returns to normal operation, EPS control center signals the automatic shutdown of the inverter, and also by its power from the inverter to switch execution to bypass mode switching operation. Thereafter, EPS to load in the mains power supply via the AC bypass path while also charging the battery via charger. (4) In addition to the emergency lighting system, the intelligent three-phase inverter emergency power supply which is to provide a variable frequency emergency power system is a load of the motor, the product is easy to solve the emergency power supply and motor start during the impact of power supply equipment of. Intelligent emergency power acceptable fire linkage signal, intelligent bus signal control building, and set priorities to prevent leapfrog control. EPS Emergency Power Supply Selection