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For new or long-term deactivated motors, check the insulation resistance between windings and windings to ground before use;
Generally, 500V insulation resistance meter for 500V or less; 1000V insulation resistance meter for 500-1000V; 2500V insulation resistance meter for 1000V or more;
High quality repair guarantee7*24 hours of after-sales service
Check that the transmission is working reliably
Check ventilation and bearing lubrication is normal
Common fault analysisGive you a fast and effective solution
The motor does not start after being energized, and the motor speed is slow and weak.
The motor casing is energized, and the temperature rise is intensified when the motor is running.
The motor runs loudly and the fuselage is overheated.
Professional service use assuredWin value with quality, win customers with service
For many domestic and foreign brands equipped with technical engineers, perfect pre-sale, sale, after-sales professional service system;
Provide information consultation services; free visits to maintenance workshops, sample preparations and new technology exchange meetings and lectures;
The system introduces the maintenance skills and recommends the most suitable solution for the user;
Many friends who learn the inverter repair technology, after learning the theoretical knowledge of inverter maintenance, because they do not know how to use the theoretical knowledge they have learned, many actual seemingly simple faults are not known in the actual maintenance work. How to check, even if you check+ View details
The basic concept of a water pump is a machine that delivers or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid, mainly for transporting liquids including water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal.+ View details
Tianjin Huatong Electromechanical Equipment Maintenance Co., Ltd. - Large Electric Motor Repair Factory (hereinafter referred to as Huatong Electromechanical) is located in TEDA Industrial Park, Jinnan District, Tianjin, 20 km east of Tianjin Xingang, Economic and Technological Development Zone and 13.5 km west of the city. North Linhai, Beijing-Tianjin-Tanggu Expressway, Jinbin Expressway, Jintang Highway, Jinbei Highway, Jinhan Highway, Yangbei Highway, Jingshan Railway, Jinqin Passenger Dedicated Line. Huatong Electromechanical has advanced motor repair, processing, testing and experimental equipment. It has a strict management system and a comprehensive after-sales service system. The company also has a group of engineers and professional technicians who have been engaged in motor diagnosis and maintenance for many years. It is repair, maintenance, domestic and foreign high-voltage motors, AC and DC motors, explosion-proof motors, large-scale pump generator refrigeration equipment, inverters, soft start high-voltage and low-voltage power distribution repair, maintenance and so on. Another: company...+ View details
[Article introduction:] In the daily maintenance process of the inverter, various problems are often encountered, such as peripheral line problems, poor parameter setting or mechanical failure. If the inverter is faulty, how to determine which part of the problem is involved, here is a brief introduction. First, static test 1, test
[Article reading:] Inverter repair can use a single-phase 220 to 380 autotransformer (about 200VA) or a two-voltage circuit with a single-phase 220 autotransformer can be used, driving the no-load inverter is fine, There are individual brands of inverters (Hitachi, Danfoss, Schneider) have input shortages
[Article introduction:] We often hear overvoltage faults in inverter maintenance, but undervoltage faults are also common problems encountered in inverters. The reason is that the main circuit voltage is lower than the lower limit, the protection action or the rectifier bridge is damaged or the grid is instantaneously powered off, and the input is not equal.
The maintenance method of the variable frequency motor is basically the same as that of the ordinary motor. However, due to the particularity of the variable frequency power supply, the winding insulation of the variable frequency motor is stricter than that of the ordinary motor. The following measures should be taken to improve the insulation condition: 1. The corona resistance is good. Electromagnetic wire,
Usually AC servo motors and stepper motors have a relatively long service life, mainly because there are fewer vulnerable components inside these products. Unlike brush-type motors, except for bearings, brushless AC servo motors and stepper motors, basically nothing
Three-phase AC motor common faults and maintenance techniques Three-phase AC asynchronous motor is the most common electrical equipment in industrial and agricultural production, its function is to convert electrical energy into mechanical energy. The most used one is the squirrel-cage asynchronous motor, which has a simple structure, convenient start-up and small volume.
1. Check the pump power supply lead: The main purpose is to see if there is any aging, broken skin, and the copper core of the power cord is leaking. If the power cord is on the shore, it can be wrapped. If it is the most suitable method in the water, Replace the power cord. Always check the pump impeller for no soil.
The principle structure of the inverter is complicated, and it is inevitable that the inverter will be repaired during operation. For the maintenance of the inverter, the information displayed by the inverter self-diagnosis and protection function should be analyzed as a clue, and appropriate Detection hand
The water pump is one of the important components of the engine cooling system. The function of the pump is to pressurize the coolant to ensure its circulation in the cooling system and accelerate the heat dissipation. As a long-running device, the pump will also appear during use.
1. During the use process, the user often encounters the situation that the pump speed is too low, which is usually caused by human factors, such as randomly arranging the motor with a model that does not match the model; in addition, the mechanical failure of the pump itself or the maintenance of the power machine will cause this. The occurrence of a phenomenon.
1: Measure the insulation resistance between the phases. 2: Measure the insulation resistance between the phases and the case. (These two can only be roughly measured for direct short circuit or grounding, because the voltage inside the multimeter is too low. If you want to use the shaker to measure accurately, it is generally required that the insulation resistance should not be less than 0.5 trillion.