Some problems that should be paid attention to when the PC program

The application of programmable controller (PC),we often encounter of the relay control system transformation problem,then we tend to refer to the original relay control circuit to prepare the PC application. In programming,therefore,we should pay attention to the PC electrical motor control system and relay control system some different on the way to work.Because of the relay control system is a "parallel" way to work,and its contact on-off needs certain action time. So when the starting circuit,time relay KT delay time,KT whether can continue to ac induction motor keep the current state,"parallel" two actions need to be considered at the same time process: KT normally closed delay off contact,KA1,losing electricity KA1 normally open contacts disconnect; KT normally open delay contact closure,KA2 electricity,KA2 normally open contact wholesalemotor.blogspot.com closure. The results of the two process function,to determine the status of KT. At the same time,the existence of the action time of the contact,makes the circuit in time sequence. So the circuit can not reliable work. If join the empty boxes in the loop,and as shown in high efficiency electric motor figure 1 the KA2 normally open contacts into KA3 normally open contacts (see figure 1) brackets. As a result,KT,the KT itself lost electricity,will not continue to maintain current state.

Electrical fault

 Has become more and more widely used in the production of electrical equipment,and electrical failure is inevitable,how to search and eliminate electrical fault according to the fault phenomenon is facing a big problem.Electrical maintenance personnel is to face and solve the outstanding problems electrical motor of the main technical force,in actual production application can accurately locate the fault,and troubleshoot make electrical equipment can steadily run normally every maintenance personnel is fork service motor run capacitor and responsibility.The article illustrates the general steps of electrical troubleshooting and troubleshooting methods.In the practical work,we will meet different electrical fault,the generation of electrical fault electricalmotor1.blogspot.com is strange,troubleshooting methods and ways can only according to the specific situation of the fault,no strict mode and method,will be difficult for part of the maintenance personnel,in the process of troubleshooting,tend to go asynchronous motor a lot of detours,even cause bigger loss.As a maintenance electrician,in case of electrical failure,can accurately find out the cause of the problem,reasonable troubleshooting correctly,to improve labor productivity,reduce the economic loss and safety in production is of great significance.

generator Stator Rotor

Gears in the role of electric tools is the transmission and,according to the gear shape can be divided into 8500w gasoline generator cylindrical gears and bevel gears have straight teeth and helical teeth (points).In electric tools,gear varied,according to the gear shape and installation position is different,have different name,such as spindle gear,shaft gear,big gear and small gear,spiral bevel gears,small arc gear,big arc gear,shaft gear,etc.Such as gear teeth or wear too much,is a new product,should be replaced some must complete replacement."Little experience"New gear use small experience.1,the new change gear in 8500w gasoline generator the gear surface coated with grease (oil),then click switch several times,no-load running again a few minutes,normal put into use.It can prolong the service life of gear,burr or contact benefits get certain break-in.2,the same gear quality from gear thickness,processing precision,etc to see with the naked eye.3,some gear when installation,pay attention to is,don't install the,also need centrifugal pump to rework reshipment.4,not a single replacement after some gear wear and tear,but should complete replacement,otherwise will speed up the gear wear and tear.Under normal circumstances should be complete set of change gears,manufacturers of accessories are complete.