Dual power automatic switch working principle and structure of dual power switch is generally composed of two parts: the switch body (ats) + controller. The switch body have pc level (monolithic) and cb level (breaker) points, dual power automatic key switch electrical quality is good or bad depends on the switch body conversion. 1.pc level ats: one-piece construction. It is a dedicated switch dual power switch, has a simple structure, small size, their chains, fast conversion speed, safety, reliability, etc., but be equipped with short-circuit protection. 2.cb level ats: with overcurrent release of ats dual power, it can be switched on and the main contact for breaking short-circuit current. It is composed of two circuit breakers plus mechanical linkage components, with short circuit protection functions of the controller work status controller is mainly used to detect the monitored power supply (two-way) working conditions. The controller should have the advantage of generally non-critical load controller options. The controller also has two forms: one from the traditional electromagnetic relay constitution; the other is a type of intelligent digital electronics products. It has good performance, tunable and high precision, ease of use. Normal operating conditions 1. The ambient air temperature of the ambient air temperature limit + 40 ℃; ○ ambient air temperature limit -5 ℃; ○ ambient air temperature does not exceed the average of 24h + 35 ℃. 2. elevation: the installation site altitude does not exceed 2000m. 3. Atmospheric conditions: air relative humidity in the ambient air temperature does not exceed + 50% 40 ℃ time; at the bottom than the temperatures can have a higher relative humidity; monthly average maximum relative humidity wettest month was 90%. 4. Pollution Degree: Pollution levels for three. On dual power automatic switching devices and UPS, EPS device application summaries Africa Joint Pavilion of power protection: a detailed analysis of dual power automatic switching devices and UPS, EPS device application Africa Joint Pavilion in the Expo area of ??electrical work and the the great role played by dual power switch, and thus extended description of major events in the future electrical work, you can fully draw on their successful operating experience in Africa Hall, the widespread use dual power automatic switching devices and UPS, EPS device to ensure that important load power supply foolproof. Dual power automatic switching devices, UPS and EPS concept and scope of dual power automatic switching device is suitable for AC 50Hz, 400V two-way power (common power supply and backup power supply or power supply), when a power failure and perform all the way between the power automatically Switching dual power switching devices, in order to ensure the reliability and security of supply. It monitors the common power supply, when the common power deviation (undervoltage, overvoltage, phase failure and loss of pressure), it can load or switch to standby power generators to ensure continuous and reliable power supply load. UPS, it can protect the computer system after a power outage to continue working for some time to allow the user to save an emergency, so you do not work due to power failure or loss of data affected. It is widely used in the computer systems and network applications, mainly plays two roles: one for emergency use, to prevent a sudden power failure affecting the normal operation, causing damage to a computer; the second is to eliminate surges on mains, instant high voltage, instant low voltage, wire noise and frequency offset and other "power pollution" dual power automatic switch, improve power quality, providing high-quality power for computer systems. EPS, is today an important building for emergency lighting and fire power to protect the safety and the use of an emergency power supply. Part of it is mainly composed of input and output units, charging module, battery, inverter, monitor, output switching device, such as dual power switching devices _ double-Electric (certified) _ Thai Industries Yueqing dual power only by Shanghai Co., Ltd. Yueqing Branch provided. Shanghai only Thai Industrial Co., Ltd. Yueqing Branch (www.cnats.cc) is Wenzhou, Zhejiang Province, switch leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the only Thai Industries led the staff warmly welcome all inquiries negotiations to create only a better future for Thai Industries.