Types of high voltage circuit breaker As we know about circuit breaker is to protect electrical equipment from abnormal condition such as over load current or short circuit.For Low voltage circuit breaker,i already explain on my last post.Please read my post about miniature circuit breaker (MCB),molded case circuit breaker (MCCB) and residual current circuit breaker [...]
Star Delta completed wiring diagram The most active post in Electrical Engineering Centre blog is Star delta starter and Star Delta motor connection.I received many comments and request for Star Delta circuit diagram. So this time i want share my simple star delta circuit diagram completed with power and control line circuit.I hope it can [...]
Basic terminology of electrical fault protection A new terminology for electrical currents now include all faults those between live conductors as well as earth or grounding faults. If we not design our circuit protection properly followed standard guide,it can cause serious injury or death for human and equipment damage. Fault current be determined at every [...]
HOW TO IDENTIFY COOLING METHOD FOR TRANSFORMER? Why cooling system for transformer very important? The amount of heat from a transformer typically dissipated is about 12.5 watts per square meter of surface area per degree C. Normally transformer installed in special area or room for power distribution such as sub station or power room.The heat [...]
For electric motor failure causes,the common defected for mechanical part is bearing.Normally 1 unit motor have a 2 pieces of bearing and type of bearing for induction motor is ball bearing full metal cover ( ZZ ). Root cause for bearings problem usually such as rusty due to condensation process,ball in housing broken,grease was burn [...]
Relays have a wide range of application in industry.Even with the advent of electronic control such as PLC and other solid state devices such as thyristors,the electromechanical relay still retain a high level of acceptance. The reason for this is that for simple types of control,relay offer a cost effective solution.They are available in a [...]
For star delta stater,the motor must have 6 cables from control panel and 6 terminals at induction motor ( U1,U2,V1,V2,W1,W3).To wiring a connection for star delta motor,the important things we must fully understand the basic of STAR DELTA MAGIC TRIANGLE. For detail about star delta stater please read my last post about it. From this [...]
Introduction for PLC programming How we can make the PLC functioning properly to control the machine?We need to stored the PROGRAMMABLE CONTROL SYSTEM into the PLC memory.We need the special PLC PROGRAM to written the PLC language.For that task..we need the PC or LAPTOP to run the programming software :D After we make a sketch [...]
