ZJSHUYI How to choose a circuit breaker for home improvement. www.cnswit...

1. Estimate power distribution Because the selection of circuit breakers needs to be considered according to the use environment, line load and voltage level, etc., you must be careful when purchasing. Usually, the household line will use 16-level hard copper wire, and the indoor circuit breaker will use a 63-amp small circuit breaker, so that when the household circuit fails, the circuit breaker can cut off the power within a specified time to avoid circuit and circuit damage. Electrical damage. 2. Determine the number of power circuits Generally, home improvement circuits are not too complicated, but in order to ensure the power demand of different circuits, the circuits are generally classified, such as lighting as one channel, kitchen sockets as one channel, and air conditioners as one channel, etc. Users need to be based on the actual situation of home decoration. The electricity is classified, and then the appropriate circuit breaker is selected according to the number of circuits, so that when a fault occurs, the faulty circuit can be quickly locked. 3. Determine the compliance current After classifying the circuit, the user needs to choose according to the power consumption of the circuit. Note that the maximum load power of the circuit breaker cannot be less than the total power consumption of the circuit, otherwise the switch is overloaded, which will easily cause the circuit breaker to heat up and short circuit, and it should not be too large, otherwise the circuit will open. The device is not sensitive enough and cannot be disconnected in time when a fault occurs. Web: www.cnswitch.cn Tel/Fax: 0086-577-62840011 Wechat/WhatsApp: 008613355775769 Zhejiang SHUYI Electric Co., LTD, Focus on switches with 30 years. An original factory of micro switch; foot switch; toggle switch; limit switch from China. #microswitch#footswitch #toggleswtich #limitswitch #breaker #mccb #Rockerswitch #miniswitch #LEDswitch #ZJSHUYI #Chinashuyi #cnswitch

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