Three-phase asynchronous motors are widely used. When electricians are repairing motors, they often encounter some old motors that lack nameplates or markings, or the nameplates and markings are unclear. How to use a multimeter to determine and test the motor windings, number of poles, speed, etc., is discussed below. 1. Determining the Start and End … Read more
Click “Mechanical Industry Press E Vision” for quick follow-up A multimeter is a magnetic-electric instrument equipped with a rectifier that can measure various electrical parameters such as AC and DC current, voltage, and resistance. Some models can also measure key parameters of transistors and capacitance. Mastering the use of a multimeter is one of the … Read more
Insulation resistance refers to the ability of electrical equipment’s insulation material to isolate current, which is an important indicator in safety testing of equipment. It can determine whether the insulator is intact, and identify defects such as moisture, insulation degradation, and insulation breakdown. Therefore, before using electrical equipment, it is essential to use an insulation … Read more
Please follow our WeChat public account “Finger Motorcycle” to read the latest motorcycle maintenance and repair information. Search for ID mscmoto directly in WeChat to follow! The most notable feature of fuel-injected motorcycles compared to carbureted models is the addition of an onboard computer, also known as the ECU (or ECM). It automatically adjusts the … Read more
Source:Medical Equipment Author:Huang Jian The ultrasound diagnostic device, as a precise and valuable clinical diagnostic medical equipment, is currently widely used in various hospitals. Although there are numerous brands and model specifications, the working principle is basically the same, which is that the instrument emits ultrasound waves through the probe. The ultrasound waves reflect off … Read more
The ultrasound diagnostic device is a common examination method in clinical diagnosis and treatment, and its usage directly affects the accuracy of the examination. As maintenance personnel, one should have a precise understanding of the working principles, components, functions, technical parameters, and operating procedures of the ultrasound diagnostic device. It is also necessary to have … Read more
In recent years, with the development of society, PLC (Programmable Logic Controller) has been widely used in industrial production, and the requirements for its use by technical personnel have been increasing year by year. Therefore, the requirements for the normal and stable operation of the system are also getting higher. The Programmable Logic Controller (PLC) … Read more
“Guangdong LED” MagazineLeading Media in the LED Industry Inscription by Song Hai, former Vice Governor of Guangdong Province, managed by the Provincial Department of Science and Technology, co-hosted by the Provincial Semiconductor Lighting Industry Joint Innovation Center, the Provincial Semiconductor Light Source Industry Association, and the Shenzhen LED Industry Association (5A Class). With the rapid … Read more
This article is dedicated to those who are overwhelmed by too many messy wires and don’t know what to do… The five-party intercom is one of the emergency rescue features of elevators, and it is a mandatory inspection item during elevator installation acceptance and annual inspections. In our community, the intercom between the car and … Read more
10,000 manuals 5,000 maintenance materialsfree to view Scan the QR code below to view! Yesterday’s Headlines How to Disassemble and Assemble the Energy-saving Motor of a Sewing Machine Exciting Articles You Might Have Missed What to do about the Jack A4 electronic control error E08?Using robotic arms to replace manual edge stitching, does this mean … Read more