The bus system is to directly connect the components to the bus, the bus does not need to be perforated, at this time, the bus is not only the conductor of the component, but also the support of the component, the current can reach 2500A, so that the box transformer function has the following progress:
1. Save space. The components are directly attached to the busbar, and the low-voltage side of the box transformer no longer needs the traditional low-voltage cabinet, and only needs to fix the bus system on the partition of the transformer room and the low-voltage room to save space.
2. The busbar is connected without holes. Prevent the heating of the punching point, prevent the increase of the contact resistance of the punching point during operation, and easily present the risk of accidents, and improve the dynamic, thermal stability and operation stability of the box transformer.
3. Safe operation. The component encloses the busbar behind the electrical component, and there is no exposed charged body on the front.
4. The capacity of the box transformer is increased and the circuit is changed, which is convenient, flexible and convenient, which greatly shortens the power failure time.
5. The box transformer can be standardized in terms of dimensions, component arrangement, and technical functions in a certain region. Operational norms, operational safety, and aesthetics in progressive areas.
6. The cost is not added, or even reduced. Save 4-6 sides of the box transformer medium and low voltage cabinets, save the overall size of the box transformer, reduce the man-hours of the device, shorten the supply cycle, and reduce the cost of the box transformer after selecting the new process or only add it slightly.
7, the box change in the selection of bus system is a trend in the world, in Europe and the United States has been fully used for more than ten years, in the country since the 94 Asian Games, the workers' stadium added box change to choose the bus system, has been in Beijing 50 years of Daqing activities, Chang'an Street, Wangfujing Street, Olympic and other projects and Northeast, North China, southeast China and other major projects in various cities have been widely used.
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The difference between busway and silicone rubber inverter cable - Vernal
The internal bus duct uses high-quality T2 electrolytic copper as the transmission conductor, which has high purity, high conductivity, low loss and small heating, which is very suitable for industrial and mining enterprises that need large current load operations.
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A new product has been added to the world of CrossBoard® systems
A new addition to the world of CrossBoard® systems: the MOTUS® hybrid motor starter with IO-Link interface is a new networking feature in the MOTUS® IO-Link family that enables continuous communication between the control and device levels. Control the delivery of instructions, control the parameters ...
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Difference Between Grounding Electrode and Grounding Busbar – Vernal
The grounding electrode is a discharge channel that connects current or voltage to the earth, and in order to reduce the grounding resistance, the electrodes that form the grounding grid are generally used in groups.
The grounding bus refers to the connecting wire that connects the current or voltage to the grounding grid, or the conductor that connects the grounding electrode into one.
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Detailed explanation of Wiener DC bus
1. Three-phase AC power supply inlet
The power input of each inverter is connected in parallel on the same AC bus, and the power phase of the input end of each inverter is ensured. The circuit breaker QF is the incoming line protection device for each inverter. LR is an incoming reactor, when multiple inverters are operating in the same environment.
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Applications in the power of busbar systems – Vernal
The bus refers to the connection of voltage transformers and other voltage distribution devices at all levels in the substation, as well as the connection of electrical equipment such as transformers and corresponding distribution devices, and most of the bare wires or stranded wires with rectangular or circular cross-sections are selected.
Follow the lines ...
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Busbar system segmentation understanding - Wiener
The so-called "section" of the bus bar is that the data that constitutes the bus are directly connected, and there is no circuit breaker or blocking switch in the center. A circuit breaker or barrier switch in the center is called a "segment".
Different voltage levels cannot be connected in the same section. No...
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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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The busway phase in the low-voltage incoming line - Wiener
According to the requirements of the relevant specifications, the placement method 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: the horizontal placement and the placement of the down wire.
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Common Bus Application Considerations – Wiener
In the common DC bus system of multiple inverters, especially the common DC bus of inverters of different power levels, it is very important that the connection between the bus bars is maintained by fuses. When one of the inverter power equipment in the common bus is damaged by short circuit breakdown, the other inverter bus ...
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Characteristics of power system bus wiring mode
(1) Single bus wiring. Single bus wiring has the advantages of simple and clear, less equipment, less investment, convenient operation and expansion, but its reliability and activity are poor. When the bus or bus divider is faulty or overhauled, it is necessary to disconnect all power to the bus.
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What are the common types of fuses - Wiener
Plug-in fuse: It is commonly used at the end of the line at the voltage level of 380V and below, as a short-circuit maintenance for distribution branch lines or electrical equipment.
Spiral fuse: The upper end of the melt is covered with a fuse indicator, once the melt is melted...
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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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The common DC bus of the inverter system - Wiener
1. Three-phase AC power supply inlet
The power input of each inverter is connected in parallel on the same AC bus, and the power supply phase of the input of each inverter is consistent. In Figure 3, the circuit breaker QF is the incoming protection device for each inverter. LR is an incoming reactor, when multiple inverters are in the same ...
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Dense busway with high insulation – Wienal
The dense busway is made of structure, with high mechanical strength, good sealing, fast heat generation, good shielding function and anti-chimney effect.
The conductor is constructed to overcome edge discharge and acute angle damage to the insulation.
Insulation selection extrusion ...
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Difference Between Busbar and Cable – Vernal
When the busway has not been developed and introduced, the cable is still an indispensable figure in the low-voltage power distribution system, when the busway system is introduced and widely used. Whether to choose the cable or the bus duct has become a topic of endless debate.
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Wiener Electric's busbar system escorts the operation of textile machinery equipment
According to Wiener electrical engineer, the bus system is a process-assisted component, the main effect is to hook the switch on the adapter, and the adapter is then hooked on the copper bar, so that the full protection of the copper bar can be completed, and the safety factor is improved; The upper port of the switch can be connected without ...
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Advantages of busbar mounted electrical equipment - Wiener
The novelty, flexibility and originality of the busbar device appliance. It indicates the vitality of this skill and its broad market prospects. This is the real reason why we pay attention to it.
First of all, this small electrical appliance set ...
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The advantage of intelligent energy-saving dense busway - Wiener
Intelligent, energy-saving, dense busway, it is capable of generating outward electromagnetic wave radiation. It can be said that the line loss in the process of power transmission is greatly reduced, which can save energy and reduce electromagnetic radiation pollution. In addition, the product is also specially equipped with a radiator, which increases the heat dissipation area of the conductive bar and accelerates the ...
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Mesh tray reduces the cost of replacing cables – Wiener
(1) Simple maintenance and repair operations
Equipment is often added or removed or changed in the computer room, and cables are removed or added at the same time, and the grid bridge with open structure can observe the cables to the maximum extent, so it is easy to distinguish the cables that need to be replaced, so that maintenance and repair ...
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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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