Control back to the routing control transformers and start, stop buttons

Mine appliances no specific test methods, but generally have mine electrical explosion-proof enclosure, its environment and general electrical different, especially the electrical operating characteristics of a great relationship test and the ambient temperature, the direct use is not entirely suitable. On mine explosion magnetic starter operating characteristic test some comments. Mine explosion-proof  Air circuit breaker  with main circuit isolation (or reversing) switch, main contactor, protector. The control back to the routing control transformers and start, stop buttons. This test involves only operating characteristics and the main contactor  electric meter . Temperature rise test case for the combination of product. Mine anti-Na magnetic starter face trial methods, mining anti-Na magnetic starter test even the capacity of the test power requirements should be  power transformers , the resistance should be small enough. In the determination of operating characteristics of the process, the power supply voltage fluctuations on the no-load voltage should be less than 5% in terms of, for the DC power supply voltage is also required to access the test electrical load conditions ripple factor is less than 5%, AC power voltage shall be substantially sinusoidal, the power frequency test appliances should be rated frequency tolerance ± 5%.

In order to establish a more accurate three-dimensional model, must be combined with other 3D modeling software

Solid modeling functions can complete the modeling of a simple structure, but for the mechanical system is relatively complex structures, it is difficult to obtain ideal model. In order to establish a more accurate three-dimensional model, must be combined with other 3D modeling software to build the structure of the mechanical system  power transformers . This selection of modeling software UG, UG software can realize the concept of product design, industrial design, three-dimensional model of the design,  Voltage stabilizer , dynamic modeling and simulation, engineering drawing output, etc., and has been widely used in aerospace, automotive, machinery, shipbuilding, NC (NC) machining, medical devices and electronics and many other fields.

Arcing between the contacts on and off with the free metal vapor arc chamber and the internal structure of the relevant

Low voltage vacuum contactors rapid development of China is currently a new vacuum contactors, whose main contacts enclosed in a vacuum interrupter, arc isolated from the atmosphere, free from air pollution and atmospheric pressure changes, the metal  mcb circuit breaker  arc arc, arcing between the contacts on and off with the free and metal vapor arc chamber internal structure. therefore different altitudes, its breaking capacity and electrical life little impact. insulation on the outside  electric transformer  and it , the altitude of the vacuum contactor is the same in contact with air, so the air at high altitudes contactor by these two performance verification, the same applies to the vacuum contactors, but the vacuum interrupter system under atmospheric pressure at different , which is different from the closing force and closing force from the vacuum interrupter chamber is a vacuum contactor part of an anti-feature, so the altitude changes may affect its operating characteristics, it is necessary to verify the analysis.

Best action time and contact pressure, and find ways to reduce bounce conditions

In recent years, a variety of industrial automation equipment and installations further , systematic direction. Therefore, the requirements for electromagnetic contactor is further increased, but it is sometimes due to a failure of the electromagnetic contactor will be greatly affected the entire system , so they requested that the electromagnetic contactor under normal conditions of use in a variety of movements, in the long term during use and high reliability. To meet this requirement , the electromagnetic contactor must first understand the movement of the movable mechanism and the mechanism involved in the movement of each part of the material and  mcb circuit breaker  of size , and then analyzes the impact strength of the parts . Then obtain the optimal operating time and contact pressure , and find ways to reduce bounce conditions . In the study of these problems when trying to understand changes in a complex electromagnetic suction force  electric transformer  and spring . Use these forces to analyze the movement of the movable body and the impact of stress that has become an important issue. This view has not yet been studies. Focuses on the operation of the electromagnetic contactor dominant characteristic of the movement mechanism of the movable contacts and the main mechanism of impact stress generated . First, in different sizes and mechanical constant test experiments and analysis, to understand electromagnetic suction force generating mechanism and spring . Further analysis of these results with the movement of the movable body , compared with the experimental results .

Voltage vacuum contactors high voltage vacuum contactor FC loop for operating elements

High-voltage vacuum contactors, high voltage current-limiting fuses and high voltage motors, transformers, capacitors meet the selection and protection issues presented and analyzed. Voltage vacuum contactors high voltage vacuum contactor FC loop for operating elements, has a special structure, especially for applications that require a large number of sub-gate, closing the loop operations where frequent  mcb circuit breaker  is ideal appliances. In the form of vacuum contactor vacuum contactor is mainly composed of vacuum interrupter chamber, insulated holder, actuator, locking  power transformers  and chassis Used other components. Insulation installed on the fuse holder bracket, bearing assembly on a linkage  Voltage stabilizer . When only one phase fuse blown linkage also make the trip contacts. Similarly, when only one phase fuse is not installed, the linkage can also prevent the contactor closing.

High-voltage vacuum contactor failure

High-voltage vacuum contactor is a high-voltage electrical control, power system used in high-voltage motors, power transformers, capacitors and other electrical equipment, remote control and frequent operations. Its generally used in conjunction with current-limiting fuses: Vacuum contactors are used to open and close operation of the electrical equipment running or stopped; fuse for short circuit protection,  mcb circuit breaker melt breaking short-circuit current, cutting off electrical equipment failure. Based on years of field work, encountered more than high-voltage vacuum  circuit breakers , such as closing low voltage failure, the contact resistance is exceeded, the contactor tripping, etc., now the process to organize, for reference. Mechanically held contactors action principle, closing coil energized, the drive rocker closing solenoid driven insulation makes main contact is closed, the closing is completed by the closing contactor locking device will remain in the closing state; closing solenoid opening spring action during compression; sub-gate trip coil energized, the drive to make the closing of gate solenoid locking device tripping driven by the opening spring operating mechanism to achieve sub-gate.