Busbar Trading

Busbar is considered as one of the most vital electrical element in electrical power generating stations and substations. Now a days the probability of fault occurrence has been reduced with the introduction of new age technology and advanced protection layout. Bus bar and high voltage power lines always needs special attention as they are most vulnerable to faults. Automatic Busbarprotection method is applied to avoid any damage or disruption of supply. In general, busbar forms a link between the incoming and outgoing circuits in electrical network. In very simple words, a busbar is a thick metallic (preferably copper or aluminum) strip or hollow pipe which concentrate the electrical power, and through which several outgoing lines are taken out or else several incoming lines are added, is termed as electrical busbar.

Functioning of copper busbars:

In electrical power distribution, the main purpose a busbar is to conduct electricity. It’ is also an electrical conductor, maintained at a specific voltage and capable of carrying a high current, usually used to make a common connection between several circuits in a system. “Busbar systems” refers to conductors that take the form of a bar or bars of copper conductor. The bars may be exposed or enclosed. The system may have one or more joints to assure proper length and configuration and one or more take-off points connected to end-use equipment.

Bus bars & profiles are extensively used in low voltage distribution, high current & control equipment. The applications of bus bars & profiles include low and medium voltage switchgear, bus-way systems, panel boards, switchboards and many others. It acts as the main pathway to feed and distribute the current flow.

Bus bars that are made from copper are preferred over those made from aluminum because of higher electrical conductivity that copper bus bars offer. It is due to the greater electrical conductivity of copper, which enable installers to use more compact copper bus bars.

Moreover, when it comes to the higher current requirements, copper bus bars are preferred. Connections made with copper bus bars have a much lower contact resistance which prevents overheating and burn-outs.

Key Benefits

• There are numerous benefits that bus bars & profiles provide in various applications. Few of the major ones are:
• Reduces System Cost
• Improves Reliability
• Increases Capacities
• Low Contact Resistance
• Eliminates Wiring Errors
• Provides Lower Inductance
• Provides Lower Impedance
• Provides Denser Packaging
• Provides Wide Variety of Interconnection Methods
• Improves Thermal Characteristics

There are four major types of bus-bar which are classified based on the nature of the bus and voltage level they are used for. These are:

Rigid busbar – This is used for low, medium as well as high voltage. This bus-bar is rigid in nature and is made up of aluminium or copper. Porcelain insulator supports this kind of bus-bar.

Strain busbar – This is flexible in nature and supported by suspension type insulator. This type of bus-bar is used for high voltage level.

Insulated phase busbar – This bus-bar is used for medium voltage and it is rigid in nature. Insulated phase bus-bar is covered by metal shield which is grounded.

SF6 insulated busbar – Medium and high voltage system uses this kind of bus-bar system. This is aluminium bus-bar which is rigid and supported by insulators. There is metal tube which contains high pressure sulfur hexafluoride gas in which this bus-bar is installed. According to shape bus-bars are of a few types. These are – tubular tube, round hollow tubes, round solid tubes, square tubes, flat bus-bar.