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 hung on the copper bar through a special bus adapter, and all the motor maintenance switches and contactors are connected to the bus adapter in an orderly manner, and the wiring board is selected between the upper and lower copper bars to communicate, which is modularly placed, neat and orderly, which deals with the redundant incoming problem of the switch and saves the space of the device in the cabinet.
The power distribution cabinet uses the Wiener bus system, and the outgoing molded case circuit breaker is hung on the copper bar through a special bus adapter, which saves the space of the device in the cabinet and deals with the redundant incoming problem of the switch; At the same time, the main switch of the incoming line is selected with Wiener's bus fuse switch, which has a significant disconnection point, and the wire connection clamp is selected for the zero and ground wires, which eliminates the need to punch holes in the copper bar and the wire nose device, which is concise and clear, and placed in an orderly manner.
The low-voltage side of the single box transformer adopts the Wiener bus system, and the outlet switch is hooked on the copper bar through a special bus adapter, which saves the space of the box transformer and deals with the redundant incoming line problem of the switch; At the same time, in the maintenance of the capacitance compensation part, Wiener's bus fuse switch is selected, which is concise and clear, and placed in an orderly manner.
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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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Introduction to the components of the busway - Vernal
Busway is a conductive equipment used for current transmission, and now the higher the building is built, the more the application of busway is required, and in many large foremen, the use of busway is also very economical and reasonable. Any machine is made up of different parts, then the busway is made up of ...
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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.
2. When tightening or loosening the screws with a screwdriver, it is necessary to force the screws to ...
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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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Bus voltage non-system equipment failure and solution
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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How to solve the fault of the busway
If there is a problem in the bus duct of the double bus wiring, it is necessary to pay attention to the operation mode of bus maintenance in the process of dealing with the problem, and if necessary, the bus maintenance should be stopped for a short time. After the bus voltage disappears, the dispatcher should immediately swing the switch (including the bus tie switch) that may call, and notify the operation team to ...
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The importance of room power supply and busbar system – Vernal
In today's information society, the computer room is a very common equipment, so the most important thing in a computer room is the bus system, which is the center and skeleton of the power distribution of the entire computer room. Then a reasonable bus system will greatly improve the efficiency of the computer room. So how do you optimize ...
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The use of busbar systems – Wiener busbars
First, this kind of small electrical equipment is a novel concept, adopting the "non-hole lap technology", and the electrical equipment is directly installed on the confluence bus system to form a power distribution or control loop. The representative creations are busbar device fuses and fuse load disconnectors.
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Venal common bus scheme applicable places and precautions
When multiple inverters are used in the common DC bus, because the DC bus between the inverters is connected together, the bus energy between the inverter in the power generation operation state and the inverter in the electric operation state can flow to each other, so that the voltage of the common bus remains relatively stable, and the body ...
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Wiener plug-in busway features
The plug-in busway has a high 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 105C is selected for the insulation material 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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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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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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Busbar system reverse operation – Wiener
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 moment, 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 as to facilitate the bus tie circuit breaker when there is a problem, the bus tie circuit breaker can quickly trip, cut ...
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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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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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Wiener busway specification standard parameters
1. The standard scale of the bus duct
This specification regulates the terminology, skill requirements and test methods of the insulated bus trunk system (bus duct) and its plug-in feed box (hereinafter referred to as the feed box).
This specification specification applies to additional voltage AC to 660V...
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Cooling method for dense busway – Wiener
If the temperature of the dense busway is too high, a fault will occur. For the sake of insurance, it is necessary to know the heat dissipation method of the densely packed busway to prevent the impact of excessive temperature on the busway.
Low-voltage transmission line conductors, wires, cables, branch dense busway, exposed conductive poles, punctured ...
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Conductor and bus welding requirements - Wiener
1. Before welding, it is necessary to check whether the welding equipment is defective, whether the grounding of the electrical equipment is reliable, and strictly abide by the "welder safety operation procedures" when welding.
2. Correct wires and busbars, and prohibit the use of handleless files.
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Vernal fuse replacement method
1. Prepare for replacement. For example, construction personnel should wear labor protection equipment, such as insulating gloves.
2. Determine the type of fault. Check the distribution box with a test pen first, and after making sure that there is no leakage, open the door of the distribution box. Then use a voltage tester to detect the three-phase power supply, if the three-phase ...
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Application and technical requirements for bus protection on the low voltage side - Wiener
1. The use status of bus maintenance on the low-voltage side
According to the national standard "Code for Relay Maintenance and Automatic Equipment Design of Power Equipment" (GB50062-92): about the 3-10kV bus and the double bus running in parallel of the power plant and the primary substation, as long as the following conditions are installed.
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