ZJSHUYI Detection and adjustment of soft starter.www.shuyitop.com; #soft...

During maintenance inspections, 1. Always pay attention to check the environmental conditions of the soft starter to prevent it from running under the allowable environmental conditions. 2. Pay attention to check whether there are objects around the soft starter that hinder its ventilation and heat dissipation, and ensure that there is enough space around it. Regularly check whether the terminals of the power distribution line are loose, and whether the components in the cabinet have abnormal phenomena such as overheating, discoloration, and burnt odor. 3. Clean the dust regularly so as not to affect the heat dissipation, prevent the thyristor from being damaged due to excessive temperature rise, and also avoid leakage and short-circuit accidents caused by dust accumulation. 4. Usually pay attention to observe the operation of the fan. Once it is found that its speed is slow or abnormal, it should be repaired in time. 5. If the soft starter is used in a humid environment or is prone to condensation, it should be dried with an infrared light bulb or a hair dryer frequently to drive off the moisture to avoid leakage or short circuit accidents. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #softstartechnology #acmotorsoftstarter #motor3phasesoftstarter #motorprotectionsoftstarter

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ZJSHUYI Usually the soft start system is composed of softstart device. w...

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Usually the soft start system is composed of softstart device, peripheral circuit and motor load. Therefore, the objects protected by the soft start system are also the soft start device, peripheral circuit and motor load. The purpose of protecting the soft start system is to ensure the safe and reliable operation of thyristor components, #softstarter equipment and circuits, and not damage or cause safety accidents under various abnormal working conditions. The premise of #softstarter protection is that the design of the soft starter itself should be correct. The thyristor components are correct and used correctly, the drive circuit and the control circuit are reasonably designed and matched with each other, so that the device can work in a good state. These measures are the basis for the safe and reliable operation of the soft starter. Only under this premise, can the devices, circuits, and equipment fail less and not fail from the inside, and the optimized system design should aim ...
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ZJSHUYI Classic case of inverter maintenance failure.www.shuyitop.com; ...

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Foreword: Inverter repairers must keep in mind that the inverter module and the drive circuit are strongly related to failures. When the inverter module bursts and damages, the drive circuit is bound to be damaged by impact. The damage of the inverter module may also be caused by the failure of the drive circuit. Therefore, whether it is a failure of the drive circuit or the inverter output circuit, it must be The inverter output circuit and the drive circuit are thoroughly inspected together. The power-on test of the main circuit must be carried out under the premise that the drive circuit is normal and can output six excitation pulses normally. Inverter power failure A 132KW inverter has a black screen fault. Part of the wire drawing machine stopped in the wire drawing workshop, and restarted production after half a month. As a result, the inverter went black after being powered on. It was judged that the switching power supply was faulty on the spot. The inverter was removed, and th...
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