Uninterrupted switching power supply
A switching power supply, uninterrupted technology, used in emergency power supply arrangements, electrical components, circuit devices, etc., can solve problems such as short circuit of two power supplies, and achieve the effect of ensuring smooth operation, recovering losses, and reducing operating costs.
Active Publication Date: 2015-05-27
TIANJIN WATER RECYCLING COMPANY
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The voltage stabilizing device performs automatic switching by checking the voltage signal fluctuation of the power grid, but there is no obvious disconnection point for the switching between the two power grids. During the switching process, the voltage of the two power grids will inevitably work in parallel, which is likely to cause a short circuit of the two power supplies
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Below in conjunction with preferred embodiment, the specific implementation mode provided according to the present invention is described in detail as follows: embodiment
[0022] see attached Figure 1-4 , a non-stop switching power supply, an automatic switching device is added between the PLC power supply system and the UPS to form a non-stop switching power supply, the input end of the automatic switching device is connected to the output end of the UPS, and the output end of the automatic switching device is connected to the input end of the PLC power supply system Connection, the input terminal of the automatic conversion device is also directly connected with the 220V external power supply. The power supply passes through the air circuit breaker, passes through the solid state relay, passes through logic judgment, and then passes through the current transformer to detect the current signal, and then passes through the fuse and terminal to the electrical equipment...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an uninterrupted switching power supply which is characterized by being formed by additionally mounting an automatic conversion device between a PLC (Programmable Logic Controller) power supplying system and a UPS (Uninterrupted Power Supply), wherein an input terminal of the automatic conversion device is connected with an output terminal of the UPS; an output terminal of the automatic conversion device is connected with an input terminal of the PLC power supplying system; and an input terminal of the automatic conversion device is also connected with an external power supply of 220V directly. The uninterrupted switching power supply has the beneficial effects that as long as the UPS in the PLC power supplying system suffers from a hardware failure, the PLC power supplying system can be switched seamlessly, so that the stable running of the PLC system is ensured. For any system which adopts the PLC system and is provided with two paths of normal power supplies, the uninterrupted switching power supply can be utilized to replace the UPS in the PLC system, so that the electric equipment can run normally and stably. When the UPS suffers from the hardware failure, the PLC power supplying system can be switched into a standby power supply within 5 milliseconds.
Description
technical field [0001] The invention belongs to a voltage stabilizing device, in particular to an uninterrupted switching power supply applied between a PLC power supply system and a UPS. Background technique [0002] At present, PLC has been widely used in various industries such as iron and steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, automobile, light textile, transportation, environmental protection, culture and entertainment at home and abroad. For example, many sewage treatment plants in the city use PLC as the core of the automatic control system, and adopt a decentralized centralized control system to ensure the smooth operation of the water plant production process and the normal use of water users. PLC plays a vital role. Among them, the power supply system is an important link to ensure the normal operation of the PLC system. In order to ensure the smooth operation of the water plant and the continuous and stabl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06
Inventor 何伟姜威焦健胡煜李晋张亮唐福生李殿海张麟曹志立李秀敏
Owner TIANJIN WATER RECYCLING COMPANY