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Emergency Power System Scheme
Article 6.2.1 of GB 51348-2019 "Civil Building Electrical Design Standard (Description of Provisions)" stipulates as follows: Emergency Power Supply (Emergency Power Supply), referred to as EPS, is a power supply equipment composed of power converter, energy storage device (battery) and transfer switch (electronic or mechanical). When the AC input power is normal, the AC input power is directly output through the transfer switch.
The AC input power simultaneously charges the battery pack through the converter. In case of interruption (such as power interruption, voltage does not meet the power supply requirements), EPS uses the energy storage discharge of the battery pack to pass through the inverter transformation, and automatically switches to the emergency state to supply power to the load through the transfer switch.
Industrial and commercial energy storage system scheme
The battery energy storage system is a technology that uses lithium batteries as a medium to store electrical energy and release electrical energy when needed. Battery energy storage is not affected by geographical conditions and can be flexibly applied to various links in the power system and other scenarios. The technology is mature and the energy conversion efficiency is high, which can produce significant economic and social benefits.
AC-DC integrated system scheme
AC/DC integration is a power system that integrates AC and DC power, which is mainly used to provide stable and reliable power supply for various equipment. The main components of this system include AC power supply, DC power supply, power UPS, DC conversion power supply (DC/DC) for communication and emergency lighting. They share the battery pack of DC power supply and are monitored by a microcomputer monitoring system.
Uninterruptible power supply system scheme
Uninterruptible power supply equipment (Uninterruptible Power Supply), referred to as UPS, the product is small in size, easy to use, with high efficiency and high reliability, to provide reliable and high-quality AC power for the load. It is composed of a host (rectifier inverter) and a battery, which performs double conversion of the mains rectifier and inverter, and outputs the AC power supply equipment through the battery energy storage. It is mainly used in computers, network systems or other important electronic equipment to provide stable and uninterrupted power. When the mains input is normal, UPS will supply the mains to the load for use after double conversion and voltage stabilization. When the mains supply is interrupted, UPS will immediately invert and convert the battery electric energy and continue to supply to the load to protect the electric load from damage.
Charging system scheme
The charging system is an important part of the automobile manufacturing industry, mainly composed of batteries, generators, regulators and so on. Its main function is to charge the battery and supply power to electrical components, including all electrical equipment except the starting system. In new energy vehicles, since the battery does not have the ability to supply power to the electrical system for a long time, it needs to be continuously charged by the charging system.
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