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, mostly use bare wires or stranded wires of rectangular or circular cross-section, which are collectively referred to as busbars.
The role of the bus bar is to collect, distribute and transmit electrical energy. Because the bus is in operation, there is a huge amount of electric energy through, and when the short circuit is short-circuited, it bears a great heat and electrodynamic effect, therefore, it is necessary to reasonably select the bus data, cross-sectional shape and cross-sectional area to meet the requirements of an economic operation. The bus bar is divided into hard bus bar and soft bus bar according to the structure. Hard busbars are further divided into rectangular busbars and tubular busbars. This is part of the difference between busbar and busway. The rectangular bus is generally used in the main transformer to the distribution room, and its advantages are that the construction device is convenient, the change in operation is small, and the current carrying capacity is large, but the cost is high. The soft bus is used outdoors, because of the large space, the wire swings and does not cause the separation between the wires to be unworkable. The soft bus is easy to construct and the cost is low, which is the difference between the bus bar and the bus duct.
Busway: The busway system is a power distribution device that can be used to transport current, especially to meet the needs of economically reasonable wiring in taller and taller buildings and large-scale factories. With the emergence of modern engineering facilities and equipment, the electricity consumption of all walks of life has increased rapidly, especially the emergence of many high-rise buildings and large-scale workshops.
As a new type of distribution wire, the bus duct came into being, compared with the traditional cable, it is abundant in the high current transportation to reflect its superiority, together because of the use of new technology, new technology, greatly reduce the contact resistance and temperature rise at the junction of the two ends of the bus duct and the junction of the distribution port, and the use of high-quality insulation materials in the bus duct, thereby improving the reliability of the bus duct, making the whole system more and more perfect. This is the difference between busbar and busway.
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The difference between the busbar system and the traditional wiring
The advantages of the busbar system are:
1. The Wiener bus system adopts the bus bar non-perforation connection technology, and the electrical components are firmly connected to the busbar;
2. It saves the device space, saves the redundant wiring, saves the device time and labor;
3. The busbar ...
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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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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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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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Analysis of the conditions for the use of sealed busbars - Wienal
Ambient air temperature: turn off the busbar system to benchmark the ambient air temperature; Unless otherwise ruled, the manufacturer should give an additional current to shut down the busbar system at a base ambient air temperature of 35°C; If applicable, the manufacturer should give an additional coefficient k: (K1=1 at 35°C) in order to determine the size of the package.
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The role of the busbar in the excitation system – Wiener
The bus PT is used to measure the bus voltage on the high-voltage side of the main transformer, and is used to assist in grid connection. Before starting the synchronous grid connection, the excitation system actively adjusts the terminal voltage according to the bus voltage measured by the bus PT, so that the voltage on both sides of the grid-connected switch is basically equal, which is convenient for the same period of grid connection.
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NH-Fuse Type Disconnector Instructions for Use
When switching on and off components, you should pay attention to the following:
–In accordance with VDE-0105-100, only operation by electrical professionals or persons with electrical knowledge is allowed (operation without electricity, closing, disconnecting, and replacing fuses ...).
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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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Wiener busway plug-in box wiring method
The bus duct bracket has to be firmly installed, and the bus duct should be correctly placed according to the segment sequence number, phase sequence, number, direction and device mark, and when the sections are connected, the adjacent section of the bus duct should be aligned, and the conductor and shell of the bus duct should not accept mechanical stress after the connection.
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Bus voltage non-system equipment failure and solution - Wienal
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 the voltage to operate in three ways: forward voltage regulation, reverse voltage regulation and constant voltage regulation. However, when the power grid is in practice, due to the change of active and reactive power output, the increase or decrease of electricity load, and the system wiring party...
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What is the role of the busbar in the distribution box
Busbar refers to a product made of copper and aluminum materials with high conductivity to transmit electrical energy and have the ability to gather and distribute electricity. The main conductor used by the power station or substation to transport electrical energy. In the power system, the busbar in the distribution box connects the various current-carrying branch circuits in the distribution unit, ...
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Scenarios for the use of various types of busbars - Vernal
1. The bus bar is divided into hard bus bar and soft bus bar.
2. According to different shapes, hard busbars can be divided into: rectangular busbars, tubular busbars, trough busbars, diamond busbars, etc.
3. Rectangular busbar is a commonly used busbar. According to its material ...
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There are several main ways to wire the busbar - Vernal
(1) Single bus. Single busbar, single bus segment, single bus plus bypass and single bus segment plus bypass.
(2) Tandem bus. Double busbar, double bus segment, double bus plus bypass and double bus plus bypass.
(3) Three busbars. Triple bus, triple bus section, triple bus section ...
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Introduction to busbars, busway, and busbridges - Wiener
generatrix
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.
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Features of busway power supply system - Wiener
1. Trunk power distribution system, simple wiring and reliable operation.
2. It is convenient to tap, and you can tap without cutting off the main power supply. Large power supply capacity up to 6300A current-carrying capacity.
3. High dielectric strength, strong overload, superior fire performance. Good heat dissipation performance, low impedance ...
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The busway power system is a key component - Wiener
The busway is one of the more critical components in the power system, and it is an important part of connecting cables to important equipment such as substations, overhead lines, transformers, circuit breakers, etc. It is widely used in various power systems, mainly for the reliable operation of power systems.
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Wiener bus adapters are suitable for use with Siemens 3VA1 and 3VA2 circuit breakers
For the use of Siemens' new 3VA1 series circuit breakers in the 30Compact system with currents up to 160A, Wiener has developed an EQUES® bus adapter.
A spring-loaded base and high-performance internal power rails ensure safe connection to the circuit breaker.
advantage
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Uses and technologies of cable junction boxes – Wienal
XBT series mine flameproof communication cable distribution box has the characteristics of small size, reasonable cable import and export, and wide coverage. Each distribution box has 4-10 inlet and outlet bells, which is suitable for HUYV type mine signal cable in coal containing sexual gas (methane) mixture (non-mining face).
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A detailed description of the Wiener comb busbar and connection terminals
The Wiener comb busbars and connection terminals are available with QUADRON®CrossLinkBreaker in size 000/00
Recommended installation: Wire entry at the lower end of the NH-fuse disconnector through the comb busbar.
In the installation position and ...
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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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