Protection of busbars is mainly done using differential relays. These relays sense current flowing into the bus and current flowing out of the bus. If current in != current flowing out, the relay assumes there is a fault on the bus and trips breakers to isolate the bus.
The Bus Bar is (usually 3, or 4) solid copper bars that run through an MCC (Motor Control Center) and just supply power to the individual 'buckets' (compartments that contain the individual motor starters). The only protection for a bus bar would be from the 'Panelboard', or 'Switchboard' breaker that feeds the bus bar mounted in a separate MCC. Make Sense???, let me know if not...
In the event of a busbar fault, the next level of protection will operate and disconnect the busbars.
feeder pillars are used for distribution of electrical supply to customer in which having a such arrangement that the Incomer with Protection (MCB, SFU,MCCB) from this protection the O/G is connected to the Bus bar and from bus bar the O/G are provided to customer,
To obtain the amp of the copper bus bar, multiply the width of the bus bar by the thickness of the bus bar to obtain the current carrying capacity of the bus bar.
feeder pillars are used for distribution of electrical supply to customer in which having a such arrangement that the Incomer with Protection (MCB, SFU,MCCB) from this protection the O/G is connected to the Bus bar and from bus bar the O/G are provided to customer,
5-6x150 Cu. BUS BAR PER PHASE
Single bus is used in smaller, less important substations. A fault on the bus requires tripping of all lines into the bus. When higher redundancy is necessary, ring and breaker and 1/2 schemes are used. These are the three most common.
The term "bus bar" refers to a strip of bar of brass, aluminum, or copper. This strip of bar conducts electricity with a distribution and switch board.
Bus bar is a physical component that carries the current. AMP is unit of current. They can not be converted
...because it is an infinite bus bar, meaning it can supply infinite current. By Ohm's law, since the voltage at the bus bar is fixed, to have infinite current, you must have a zero impedance.
Bus bars are actually simple conductor strips of copper using for connection between one system to another.for example transformer to panel. bus ducts are enclouser of that bus bar
voltage of incoming machine should be same as that of bus bar voltage