A bus coupler is used to shift the load from one bus bar to another busbar crossing in case of power overload. In such a system two busbars are used, the main busbar and the transfer busbar The busbar system uses a bus coupler that connects the different switches that connect the circuit breaker to the busbar. Using more than one circuit breaker increases the cost of the system.The current limit reactor is used in this system to reduce the incidence of faults.ĭisadvantages of Single Bus-Bar Arrangement with Sectionalization.The defective part can be repaired without breaking the main power supply.The defective part can be easily disconnected from the system without interrupting the main power supply.This system uses more than one circuit breaker which makes a slight difference in the cost of the system.Īdvantages of single Bus-bar Arrangement with Bus Sectionalization So that the entire power system is protected by a complete shutdown. The defective part is separated with the help of an isolator. This type of busbar system uses an isolator and a circuit breaker as a switch. Single Bus-Bar Arrangement With Bus Sectionalized Suggested Read: What Is an Oil Circuit Breaker? | A Complete Guide #2. All substation equipment like a transformer, generator, and feeder is connected only to this bus bar. Only one busbar is connected to the switch system. The design of the Single Bus-Bar Arrangement is simple and easy. The types of electrical busbars are as follows Suggested Read: Double Cage Rotor of Induction Motor Types of Electrical Busbars Due to this, the problem of power trips does not arise. However, more than one busbar is used in a large substation as compared to a smaller substation. In small substations where there is no constant need for power, a single busbar system is used.
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