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In the field of electricity, the busbar can also be called the busbar, busbar, etc., which mostly refers to the busbar or power supply trunk in the high and low voltage cabinet, which is used to connect multiple electrical lines. The system will install various interface cards through the bus and transmit various data to the devices connected to the interface cards.
The bus can serve multiple components, and the basic working mode of the bus is usually that the part that sends the information sends the information to the bus in time, and then the bus sends the information together to each component that receives the information, and the device address given by the CPU is determined by the control signal generated by the decoding.
Busway
Busway is a kind of trunk tappable power supply system with a large current, mostly referring to dense busway or closed busway, usually composed of metal shell (iron or aluminum), conductive body (copper or aluminum bar), insulation materials and related accessories. The internal copper bars are closely adjacent to each other, and after insulation treatment, they can operate safely and stably.
Busway was first born in the United States, put into practice in Japan, and then spread throughout the mountains and regions of prosperity. In recent years, with the construction of a large number of infrastructure, people's demand for electricity is also increasing, and the bus duct has gradually become a high-current transportation system in industrial plants, high-rise buildings, commercial complexes and rail transit.
Busbar bridges
The practice of bus bridge is the same as the function of bus duct, which is the operation carrier of high current. It is a busbar system composed of metal plates (steel plates or aluminum plates) as protective shells, conductive strips, insulating materials and related accessories. It can be made into a plug-in closed busway with a distance junction box, or it can be made into a fed-in closed busway without a junction box in the center. There is a gap between the conductive copper bars of the product, which is mainly insulated by the air in the slot, so the bus bridge is also called the air bus duct.
From the perspective of bus duct product selection and iterative process, bus duct (dense bus duct) is more superior in conductive function, safety and current carrying capacity than bus bridge (air bus duct), and is an upgraded product.
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The advantage of busway over cable in construction - Wienal
Modern power supply lines play a very important role like the aorta of the human body, and if something goes wrong, it can have serious consequences. Before the 80s of the 20th century, many stable cables were used in modern construction. With the rapid development of the city, the power load of the building ...
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Wiener enclosed busbar installation
Closed busway is a busbar system composed of metal plates (steel plates or aluminum plates) as protective shells, conductive strips, insulating materials and related accessories. It can be made into a piercing closing bus with spaced piercing junction boxes, or a feed-in closing bus without a junction box in the middle. ...
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Advantages and disadvantages of bus full differential protection
Thorough differential maintenance of the bus is to connect the current transformer of all the connecting elements on the bus to the differential circuit according to the same name phase and polarity, the characteristics and transformation ratio of the current transformer should be the same, if the transformation ratio can not be together, the compensation converter can be used to compensate, satisfactory ΣI=0.
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The innovation of Wiener 185Power in the low-voltage main distribution system
The new base system adapter creates a new type of solution in combination with the 185Power system, which was not possible before. CrossBoard® products can be easily connected to the adapter of the base system via the CrossLink® interface. Components of DIN support rails, e.g. fuses ...
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Operating regulations for the use of busbars - Wiener
1. Charging to the bus should be carried out with a switch (bus tie, bypass or line switch) with snap-action maintenance that reflects various types of faults. Before charging the bus, it should be considered whether the system may be unstable if the charging bus trips, and if necessary, the active power flow of the relevant line can be reduced. ...
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Introduction to the components of the busway - Vernal
Busway is a conductive equipment used for current transmission, and now the higher the building is built, the more the application of busway is required, and in many large foremen, the use of busway is also very economical and reasonable. Any machine is made up of different parts, then the busway is made up of ...
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220V DC Hazard of Bus System – Wiener
The grounding of the DC system should include two situations: the one-point grounding of the DC system and the two-point grounding of the DC system.
In the DC system, the positive and negative poles of the DC are insulated from the ground, and when the ground of one pole is generated, there is no grounding current due to the fact that there is no grounding current.
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Phase of the busway in the low-voltage incoming line – Wiener
According to the requirements of the relevant specifications, the placement of the three-phase busbar can be roughly divided into two kinds according to the model of the low-voltage distribution cabinet and the different manufacturers: horizontal placement and placement of the down wire, according to the order of placement.
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The essence of Wiener busbar technology
1. Closed busbar hooking technology
Circuit breakers and contactors can be hooked on the bus through the bus adapter, and fuse switches and other products are directly attached to the bus, so the bus bar plays a two-layer effect of conductive and fixed rotation.
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Tubular busbar structure layout - Wienal
1. The tubular bus is in the form of a split-phase fully insulated shielded copper tube bus.
2. The cylindrical capacitor structure is selected, and the voltage equalizing capacitor layer, the main insulation layer, and the bottom layer of the shielding street are set between the conductor and the insulating sheath, and the shielding grounding layer on the outside is connected to the grounding grid. The quantity of each layer is determined by the seller.
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Differences and differences between busway and other busbars
The busbar and busway are actually one open and one closed, and the other is not closed. The closed busway is referred to as the busway, that is, the busway is sealed
The closure of the busbar, the closure of the busbar and the busway all refer to the same east...
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Features of Wiener busway
The Wiener busway mainly acts on the aluminum conductor, which has a large current capacity and good electrical and mechanical properties. In addition, it uses a metal trough as the shell, so it is non-flammable, safe and reliable, and has a long service life. Compared with traditional power distribution, the equipment occupies a significantly smaller area and has a beautiful appearance.
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Example of the application of the Wiener busbar system
The motor control cabinet uses the Wiener bus system, and the copper bus is used as both a hooking element and a conductive element; The incoming molded case circuit breaker is connected to the copper bar through a special bus adapter, and all the motor maintenance switches and contactors are hooked on the bus adapter in an orderly manner.
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What is the difference between a Wiener busbar and a cable
The difference between busbar and cable
The busbar is used to gather current. Many power and power supply circuits are connected to the bus, through which the power is gathered and sent to each circuit. Therefore, the current carrying capacity of the bus bar is relatively large, and the current carrying capacity of the bus ...
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Wiener looks at the busway drawing method
First, in the CAD system drawing, it is a plan of the bus duct, and two parallel polylines can indicate the bus duct.
2. The busway includes the following parts:
1. Feeder busbar, which is used to transmit electricity
2. Plug-in busbar with plug-in interface above, ...
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Frequently Asked Questions for the Installation of Closed Busbars – Vernal
1. The cable in and out of the bridge is not piping
2. The orientation of the bridge grounding and crossing is incorrect, and the special grounding line of the spray or painted bridge device is not equipped with a special disc gasket
3. The fireproof board of the electric well is not fixed, and the fireproof plugging is not perfect
4. The bridge is opened at will, and no standard accessories are used.
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Power system bus wiring method - Vernal
(1) Single busbar. Single busbar, single bus segment, single bus plus bypass, and single bus segment plus bypass.
(2) Double busbar. Double-busbar, double-busbar segmentation, dual-busbar plus bypass, and dual-busbar segmentation plus bypass.
(3)3/2 wiring ...
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Wiener bus differential protection switching operation
1. Whether the scale of bus differential maintenance is determined, and whether the maintenance goal is unchanged
Generally, differential maintenance includes bus differential maintenance, transformer differential maintenance, generator differential maintenance and line differential maintenance. The basic principle of achieving differential maintenance is common, i.e. on all sides or on each side...
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Wiener plug-in busway features
The plug-in busway has a high overload capacity
The overload capacity of the bus duct is strong, depending on the high working temperature of the insulation material it uses, and the working temperature of 105C is selected for the insulation material used in the bus duct, and the radiation cross-linked flame retardant winding tape with a working temperature of more than 140 °C has been developed ( ...
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What is the Wiener bus system
The Wiener bus system is a standardized system for bus spacing, which is used in low-voltage power supply and distribution switchgear, so that the bus can both conduct electricity and support electrical components. The system is divided into 40, 60, 100 and 185mm systems.
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