Case Sharing | Application of Professional Operation and Maintenance Vehicle in Transformation of Intelligent Device of Motor Circuit in Power Plant

, driven by the rapid economic development, the demand for electricity in the whole society is also growing, which requires the power system to develop in the direction of automation. In this development process, the demand for automatic transformation and efficient maintenance of energy-saving systems in some old power plants has become increasingly prominent. Based on the above trends, Wanlong Electric Group (hereinafter referred to as "our company") is planning to set up at the end of 2017.Engineering operation and maintenance teamdocking power plant project, and completed the initial formation in 2018.

Engineering operation and maintenance teamEquipped by our electrical engineering departmentProfessional vehicle maintenance.Professional vehicle maintenancewas equipped, it not only fully considered the use environment of the vehicle, but also modified the interior of the carriage and equipped with a variety of equipment, such as a complete set of toolboxes, carrying trolleys, generators, WLATE300 intelligent program-controlled detectors, high-power dust collectors, electric tools, temperature measuring instruments, customized drawer dashboards, labor protection articles, safety work warning articles, sufficient spare parts and auxiliary materials, etc. These equipment and materials are classified and placed for easy operation and use.

Engineering operation and maintenance teamwas successfully formed,Professional vehicle maintenanceconfiguration was completed, Datang Suzhou Thermal Power Co., Ltd. took over the low-voltage motor circuit intelligent protection device engineering renovation project. Next, let's take a look at the specific situation of this project.

7:00 AM

engineering personnel will carry the materials, equipment and tools needed in the transformation to the special engineering operation and maintenance vehicle. In order to meet the requirements of the construction period, the construction personnel, equipped with a senior engineer and two maintenance technicians.

everything is ready, the professional maintenance car is about to leave the Wanlong electric plant.

8:00 AM

Our professional maintenance car arrived at Datang Suzhou Thermal Power Co., Ltd., went through the relevant procedures and entered its factory area.

8:10 AM

find a safe and suitable place to park the car, prepare the site, and unload tools, equipment and materials. Three professionals are about to start work!

8:50 AM

the power plant is in the minor repair stage after the power guarantee operation, the transformation of the circuit downtime is short, and can not be enough to stop the circuit, so the use of on-site implementation, drawer-by-drawer transformation to complete the replacement of the way. As most of the equipment in the power distribution room is in normal operation, after communication with the customer's electrical person in charge, the renovation workplace has been set at the electrical equipment storage and maintenance place of the power plant. The site has an operating platform that provides power to facilitate drawer testing and the use of power tools.

In order to ensure the smooth implementation of the transformation process, our company has formulated a set of rigorous transformation business processes.

9:30 AM

Engineering and technical personnel will need to transform the drawer from the power distribution room to the transformation site. Before the transformation, first check the secondary wiring inside the drawer and the terminal position and function of the secondary connector in combination with the original drawing, and take photos to keep the bottom to ensure the consistency with the design requirements of the transformation scheme.

10:00 AM

is confirmed to be correct, the renovation work begins. Since the first sample work has been carried out before the renovation project, the staff have made sufficient plans for the problems that may occur on site, and prepared some components that are easy to age and damage, such as indicator lights, buttons, auxiliary contacts, etc. Ensure the smooth progress of the renovation work.

In order to solve the test problem of various chest of drawers, our company has invested a lot of resources and successfully developedWLATE300 series portable intelligent program-controlled detector. The product has passed the provincial new product appraisal and declared a number of invention patents, and can carry out all the functions and performance tests on the modified drawers. The detection contents mainly include: measurement value verification, secondary signal control logic verification, indicator light, button signal verification, analog output detection, communication function detection, protection function verification, etc. After the program-controlled detector passes the test, a test report is automatically generated and submitted to the user along with the drawer. All test data are instantly uploaded to the company's operation and maintenance platform database management.

3:00 PM

completed the transformation of the drawer, set the fixed value of the corresponding circuit according to the fixed value table provided by the customer, and passed the tester test, and handed over the drawer to the customer.

4:00 PM

After the test is completed, cooperate with the user to carry out the power transmission and starting work, pass the user's on-site acceptance, and can be officially charged to run. The transformation work successfully completed!