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 [...]
Relay Introduction In automation industries,relay is a common device used for control application.Basic operation of electrical relay is a device that changes the state of a circuit in response to it being energized or de-energized by that or another circuit. It function to open or close the circuit or contact and respond depend on signal [...]
Now around the world are using the speed controllers to control and drive their electric motor such as frequency inverter and soft starter.This speed control get a good reputation to reduce electricity cost and high efficiency to drive electric motor. Speed controller is low maintenance and have a long life span.It easy to install and [...]
What is Vacuum circuit breaker? As we know vacuum mean the the pressure is maintained below atmospheric pressure( unit : mmHg ).So the manufacture made a research and development to design the vacuum circuit breaker based on current cannot jump in vacuum condition. This breaker used the vacuum pressured to extinguish the current arc when [...]
Circuit breaker specification for MSB. For circuit breakers specification MUST suitable with installation condition and needed.Main switchboard is the main power supply distribution for factory or building.This unit is a key for entire electrical power supply distribution. It feed the high volume of voltage for all equipment and machine.It also have a high value of [...]
Important of circuit breaker maintenance The circuit breaker maintenance is very important and it must added in periodical maintenance schedule.Why it so important?It is because of their importance for routine switching and for equipment protection and person. Production will stop if circuit breaker fails to operate because of a lack of preventive maintenance.The cost will [...]
