(1) For the charging of the spare bus, when there is a bus tie circuit breaker, the bus tie circuit breaker should be used to charge the spare bus. At this time, the maintenance device of the bus tie circuit breaker should be fully invested, and the relevant maintenance value and time limit should be changed to a smaller one, so that when there is a problem with the bus, the bus tie circuit breaker can trip quickly, cut off the fault point, and then recall the maintenance value and time limit when the standby bus is well charged. If there is no bus tie breaker, when it is admitted that the spare bus is in good condition, it can also be charged with a barrier switch.
(2) When charging with bus tie circuit breaker, the charging latching connection piece in the differential maintenance circuit should be stopped in advance to relieve the differential maintenance. In the event of an accident, only the bus tie breaker is jumped, and then it is put into operation after the charging operation is completed.
(3) In the process of pulling and closing the barrier switch of the bus reversing, the fuse of the operating power supply of the bus tie circuit breaker should be removed to avoid the bus tie circuit breaker tripping by mistake and the accident of pulling and closing the barrier switch with load in the reverse operation.
(4) When all the components connected to one bus are switched to another bus, there are two switching sequences; One is to close the barrier switch of one element to a bus, and then disconnect the other bus barrier switch; The other is to close the blocking switches of all components one by one bus, and then disconnect the corresponding blocking switches on the other bus. This should be determined according to the placement of the operating mechanism of the barrier switch and the habits of the site.
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Considerations for purchasing a busbar system – Wiener
The bus system plays a very important role in the practice of construction, and for products such as the bus system, the relevant items can not be ignored, so that we can better use the practical value of this type of product. Generally speaking, when we are purchasing a bus system ...
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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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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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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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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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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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Use and characteristics of AC busbar systems – Wiener
The communication and connection skills of the independent power supply system create better prospects for the power supply of the future. Hundreds of systems around the world have installed SMA's Sunny Island battery inverters to supply power to customers for a long time. The stackability of Sunny Island, i.e. multiple Sunny Islands ...
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Knowledge points of Wiener busway
Busway was born in the United States, first put into practical use in Japan, and then spread all over the mountains and regions in prosperous countries and regions. So what is a busway? Busway is a high-current trunk tappable power supply system, usually made of a metal housing (iron or aluminum).
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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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Busbar System Vibration and Noise – Vernal
The bus equipment has the characteristics of beautiful appearance, compact structure, agile installation, easy to use, economical and time-saving, safe and reliable, and is one of the important parts of the low-voltage power supply system. Many scholars have conducted a multi-faceted discussion on the low-voltage bus system, and after many years of production, the bus body ...
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Uses and characteristics of detached closed busbar - Wiener
Closing busbars include out-of-phase shut-off buss, co-box (including co-box phase isolation) shut-off busbars and cable busbars, which are used for power plants, substations, industrial and civil power supply leads.
Phase-off busbar
1. Usefulness
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Bus load forecasting method and characteristics - Wiener
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Development of the busbar trunk system – Wiener
(1) Air-type busway
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Scope of application of busbar - Wiener busbar system
Busbars are divided into hard busbars and soft busbars.
According to its different shapes, hard buses can be divided into: rectangular busbars, tubular busbars, trough busbars, diamond busbars and so on.
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There are several main ways to wiring the Wiener bus
Bus line refers to a product made of copper (copper bar) and aluminum material with high conductivity to transmit electrical energy and have the ability to collect and distribute electricity. The main conductor used by the power station or substation to transmit electrical energy. Through it, the output of the generator, transformer or rectifier ...
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Calculation method of bus system and distribution cabinet bus - Wiener
The bus system divides the bus into hard bus and soft bus. The 60mm bus system refers to the three-wire or four-wire bus with a distance of 60mm.
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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
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Types of corrosion of Wiener tubular busbars
Tubular bus is a new type of equipment that is widely used in our current days, and it itself has the characteristics of high current, outstanding insulation and wide range of application, so we don't seem to be too worried about its function and role when using it. But there is one thing that needs to be ...
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Classification of the use of different places in the busway - Vernal
(1) General bus duct
Non-flame retardant and non-fire-resistant bus duct used in general load power distribution. In the event of a fire during a short circuit, it will always incinerate to other connected busbars, which may briefly cause fire accidents.
(2) Flame retardant bus duct
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Difference Between Busbar and Cable in Power System – Wiener
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