generatrix
In the field of electricity, the busbar can also be called the busbar, busbar, etc., most of which refer 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 will send the information to the bus in time, and then the bus will send the information to each component receiving the information at the same time, which is determined by the control signal generated by the decoding of the device address given by the CPU.
Busway
Busway is a kind of trunk type tapable power supply system with large current, mostly refers 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 interconnected with each other, and can be operated safely and stably through insulation treatment.
Busway was first born in the United States, first put into practical application in Japan, and then spread like mountains and regions in prosperous countries and regions. 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 transmission 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 bus system composed of metal plate (steel plate or aluminum plate) as a protective shell, conductive strip, insulating material and related accessories. It can be made into a plug-in closing busway with a spaced junction box, or it can be made into a fed-in closing 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, the bus duct (dense bus duct) is more superior than the bus bridge (air bus duct) conductivity, safety and current carrying ability, and is a promotion product.
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Bus voltage non-system equipment fault handling method - Wiener
In order to ensure the safe and economical operation of the power system and its power generation, supply and electrical equipment, power grid users require voltage separation to operate in three ways: forward voltage regulation, reverse voltage regulation and constant voltage regulation. However, in the actual operation of the power grid, due to the change of active and reactive power output, the increase or decrease of the electrical load, the system wiring party...
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Application advantages of industrial busway - Wiener
1. It has a modern beauty;
2. Small dimensions;
3. Strong and light weight, simple operation;
4. The connection is very simple (just like connecting water pipes, connecting sections through tees, elbows and other joints to make them into a system;
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Classification of the use of busway in different places - Vernal
(1) General bus duct
Non-flame retardant and non-fire-resistant bus duct selected for general load power distribution. In the event of a short circuit, it will be incinerated until it is connected to other busbars, which can easily cause fire accidents.
(2) Flame retardant bus duct
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Busway installation method - Wiener
1. Busway horizontal device, the interval between the two brackets is ≯2500mm, and the interval between straight devices is ≯3600mm;
2. When the device bracket is straight, it should be drilled with the channel side plate and fastened with M6-M8 bolts.
3. In the process of installation construction, priority should be given to the power supply system, ...
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Performance characteristics of low-voltage busbar system - Wienal
Introduction to the performance of low-voltage bus system:
1. The bus bar is not perforated, and is connected with the cable and copper bar through the connection clip or terminal
2. Switches, contactors and other electrical components can be directly hung on the bus through adapters
3. Save ...
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What are the characteristics of the bus wiring method of the power system?
(1) Single bus wiring. Single bus wiring has the advantages of simplicity and clarity, less equipment, less investment, and convenient operation and expansion, but its reliability and activity are poor. When the bus or bus separator is faulty or overhauled, all power to the bus must be disconnected.
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Closed busway essentials – Wiener
Before the closed busway device, it should be ensured that the electrical shaft, the transformer and distribution room, the decoration project of the place through which the busway passes, and the heating and ventilation project are all completed to ensure that the closed busway is not polluted. The reserved holes and embedded parts of the floor and wall should be embedded and reserved according to the position required by the design.
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The importance of busbar systems in low-voltage switchgear
One of the characteristics of low-voltage switchgear is the multi-functional busbar system.
The bus bar is a conductor that connects large electrical equipment such as generators and transformers with various electrical equipment. The role of the bus is to, sub-...
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Advantages of a shared DC bus system – Wienal
The shared DC bus system is the future development direction in the application of multi-drive motors, which makes reasonable use of the regenerative energy of the system together with better dynamic and static functions and speed regulation accuracy, eliminating a lot of braking units and braking resistors, and the energy efficiency ratio of the system has been greatly improved.
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What is tubular busbar and dense busbar - Wiener
What is a tubular busbar
Tubular bus bar is a kind of bus bar product with copper tube or aluminum alloy tube as conductor and external insulation. The tubular bus has the characteristics of high current (12000A), high mechanical strength, good insulation, wide application range, etc., ...
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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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The Wiener bus system is reliable
The bus refers to the connection of voltage distribution devices at all levels in the substation, as well as the connection of electrical equipment such as transformers and corresponding distribution devices. The role of the busbar is to gather, distribute and transmit electrical energy.
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Difference Between Busbar and Cable in Power System – Wiener
Busbar refers to a product made of copper (copper bar) and aluminum materials with high conductivity to transmit electric energy and have the ability to gather and distribute electricity. The main conductor used by the power station or substation to transmit electrical energy. Through it, the electrical energy output from generators, transformers or rectifiers is delivered to individual users.
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Aluminum alloy busway circuit continuity - Wiener
The continuity of the aluminum alloy bus duct maintenance circuit is related to the PE line, and the crossover PE wire conductor bus of the maintenance conductor and the two-unit bus bar should reach 50% of the phase line, the equivalent cross-sectional area. The continuity resistance of the housing and PE line maintenance circuit is ≤ 0.005 ohm female, and the unit with jumper wire is not less than the maintenance conductor.
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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 for our attention.
First of all, this small electrical appliance plant was conceived ...
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Advantages of common DC bus - Wiener
1. Energy saving: The energy fed back when the motor brakes can be used, so it is more energy-saving, especially for oilfield kowtow machines, cranes and other lifting equipment.
2. The power element of the equipment is high: because the motor can feed back energy, the reactive power loss is small, so the power of the equipment ...
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Advantages of pluggable busway
1. The plug-in bus duct has strong 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 105 is selected for the insulation data 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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Laminated busbar system – Wiener
In the power system, the bus connects the various current-carrying branch circuits in the power distribution device together, and plays the role of collecting, distributing and transmitting electric energy; According to the appearance and structure, the bus bar is roughly divided into three categories: hard busbar, soft busbar and closed busbar.
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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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Wiener's built-in current transformer
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QUADRON®185Power Speed disconnector fuse set
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