ZJSHUYI soft starters motor soft starters with in-built bypass. www.shu...

The entire startup process of the online #softstarter soft start, including the running process after the startup is completed, is all within the soft start. Without going through other external components, this leads to all the heat-generating parts, including the heat generated by up to 3.5-7 times the starting current at startup, and the heat generated during normal operation. This has certain requirements for the heat dissipation of the soft start, the heat dissipation of the entire cabinet, and the temperature of the power distribution room. If it is not maintained well, it will easily affect the life of the equipment. The advantage is that this starting method saves a contactor that switches to the power frequency when starting, and it takes a lot of space to place a high-current contactor in the power distribution cabinet and achieve good fan heat, and direct starting saves a lot of space. space, and even in some occasions, the incoming line contactor can be omitted in order to save space. After the bypass #softstarter finishes starting, it will give a bypass switching signal to the bypass contactor KM3 by the R2A/R2C starting and switch to the power frequency. At this time, the internal circuit of the #softstarter will still provide various detection and protection functions, so the bypass contactor does not need to have a thermal relay to achieve overload, short circuit, phase loss, etc. protection. The soft starter with bypass will not have a large current of the main circuit through the inside after the start is completed (the current and voltage are read through the internal transformer). Therefore, only electronic components are self-heating, the heat dissipation pressure is reduced, and the lifespan is significantly increased. Therefore, if there is no special requirement for space, the connection method with bypass is basically adopted in various fields. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #softstartechnology #solidstatesoftstarter #latestpowerstarter #multifunctionalmotorsoftstarter #softstarterby-passconnector #functionsmartsoftstarter #intelligentmotorsoftstarter

评论

发表评论

此博客中的热门博文

ZJSHUYI Maintenance requirements for frequency converters. www.shuyitop....

图片
Maintenance requirements in the day-to-day operation of the frequency converter 1. Check whether the cooling system is normal, and clean the dust of the air filter. 2. Check whether the screws, bolts and other fasteners of the inverter are loose, and perform necessary tightening; for the parts with soldering and crimping terminals, check whether there is corrosion, discoloration, cracks, damage, etc., and also check the frame Whether the structural parts are loose, whether the conductors and wires are damaged, etc. 3. Check whether the connection of the control circuit board is loose, whether the capacitor is leaking, whether the lines on the board are rusted, broken, etc. 4. Check whether the filter capacitor is leaking and whether the capacitance is reduced. 5. Check whether the insulation resistance is within the normal range. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #VFD #INVERTER #frequencyinverter #frequencyconverter #shuyitop #converter ...
阅读全文

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

图片
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 ...
阅读全文

ZJSHUYI Classic case of inverter maintenance failure.www.shuyitop.com; ...

图片
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...
阅读全文