1. Before the bus duct installation, it should be ensured that the electrical shaft, substation and distribution room, the decoration project of the place through which the bus duct passes, and the heating and ventilation project are all completed to ensure that the bus duct 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. The surface of the copper bar on the connecting parts of each functional unit of the bus duct and the movable joint must be cleaned and cleaned, and the inside of the shell and before the insulator device should also be wiped clean and there should be no residue. The interphase short-circuit plate of the shell should be correctly connected well, the interphase support plate should be strong, the segmented insulated shell should be insulated, the torsion bolts of each joint part of the shell should be fastened by force from the wrench, the contact surface should be closed well, and the fasteners of the bus duct must be hot-dip galvanized products.
2. The bus duct and the shell should be concentric, and the error shall not exceed 5mm, and the bus duct section and the bus duct shell should be aligned when the bus duct section is connected with the bus duct section, and the bus duct and the bus duct shell shall not be subjected to mechanical stress after the connection. It is necessary to do an insulation test before the whole device of the bus duct, and use a 1000V megohmmeter to measure the insulation resistance between phases, between phase shells, and each functional unit, and its insulation resistance shall not be less than 20MΩ. The installation personnel should carefully check the system diagram of the bus duct and check the standards and models of all bus ducts to avoid blind devices and rework to affect the quality of the construction device.
3. When the bus duct is installed, the whole structure should be horizontal and vertical, the height from the ground device should not be less than 2.2m when the horizontal symbol is set, and the height should be more than 1.8m from the ground when the vertical laying is laid, and the bend of the bus duct and the connection with the plug box should be bracketed. When the brackets are arranged in a row, the spacing should be uniform, and the spacing between the brackets should not be greater than 2m. When the terminal box and the start box of the bus duct are suspended, the bracket should be fixed, and the bracket on the wall and the top plate must be fixed with two expansion bolts, and the expansion bolts should be flattened and supple spring gaskets.
4. When the bus duct is laid vertically through the roof plate, the channel steel support should be selected to fix it on the bottom plate that passes. When the bus duct crosses the expansion joint or settlement joint of the building, the method of adapting to the movement of the building structure is selected to prevent the horizontal movement of the bus duct junction from forming a fracture and affecting the normal power supply and distribution of the bus duct.
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Advantages of common DC bus - Wiener
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Precautions for terminal block wiring - Wiener
1. The fastening wiring force should be moderate, avoid sliding the bolts and nuts with excessive force, and replace the bolts and nuts that have been slid in time, and prohibit the operation.
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The content and steps of low-voltage cabinet maintenance - Wiener
1: The overhaul should start from the low voltage side of the transformer. After the power failure of the low-voltage cabinet, clean the dust in the cabinet to check whether the connection between the bus bar and the down conductor is outstanding, whether the connection is heated or discolored, whether the cable head and the terminal pile head are strong and reliable, whether the grounding wire is corroded, and whether the terminal pile head is tightened. Everything secondary ...
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Wiener plug-in busway features
The plug-in busway has a high overload capacity
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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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Avoidable failures in busbar systems – Wienal
Cause of bus failure
1. The internal network of bus insulators and breaker sleeves caused by surface pollution
2. The voltage transformer installed on the bus and the current transformer between the bus and the circuit breaker are faulty
3. The support of the circuit breaker or isolation switch caused by the reverse operation ...
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The main components of the Wiener bus system in the distribution cabinet are composed
(1) Busbar
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How is the Wiener bus system generally debugged in sections?
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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.
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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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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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Operating regulations for the use of busbars - Wiener
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Busbar system reverse operation – Wiener
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Lighting power busway service life - Wienal
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What is tubular busbar and dense busbar - Wiener
What is a tubular busbar
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Bus load forecasting method and characteristics - Wiener
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Differences and differences between busway and other busbars
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Rectangular busbar, trough busbar, and tubular busbar analysis
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Cooling method for dense busway – Wiener
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