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 equipment is a novel concept, using the "non-hole lap technology" (the author's right to call it), and the electrical equipment is directly installed on the busbar to form a power distribution or control loop. The representative creations are busbar device fuses and fuse load disconnectors.
Secondly, WOHNER Electrical Systems has developed a multi-standard modular bus system, and its bus system is diversified in modulus and standard, and the additional value is serialized. The modulus of the bus system is 40mm, 60ram, 100/185mm; The bus cross-section forms are rectangular, double "T" (i.e., "H" shape) and three "T" shapes (i.e., "state" shapes); The bus bar can be three-wire, four-wire or five-wire, or even seven-wire, of course, depending on the need. Additional voltage of the bus system: 690V; Additional currents are: 630A/800A (rectangular), 1600A (double "T") and 2500A (triple "T"). The short-time withstand current of the bus system reaches 50kA (1s), and the peak withstand current reaches 117kA (three-wire)/120kA (four-wire).
WOHNER Electrical Systems has also developed a series of busbar adapter clamps and a variety of busbar terminal blocks using the "non-hole lap technique" – universal busbar adapter clamps, wire nose bolt adapter clamps and three-phase combined terminal blocks.
The busbar adapter clamp is suitable for both rectangular busbars and double "T" type or triple "T" type busbars; There are direct hard connections and soft connections; There are straight splint types with hard joints, and there are 90 types. Angular lap type; There are straight and 900 corner types of soft connections: the cross-section of the wire can be connected to the rectangular copper and aluminum bar, and the cable can also be connected to the circular or even fan-shaped cross-section. Wire nose bolt adapter clamps are suitable for connecting cables with "O" or "U" type crimp terminals. The three-phase combined terminal block can be connected with a protective cover, or without a protective stripe, it can be connected to a rectangular copper and aluminum bar, or it can be connected to a cable or a soft flat copper foil busbar. The additional current of the busbar adapter clamp varies from 630 to 2500A; The additional current of the general-purpose busbar adapter clamp is 1 80-800A; The additional current of the wire nose bolt coupling clamp is 63-250 # 4 The additional voltage of the three-phase combined terminal board is 690V, and the additional current is 63-1250A.
Thirdly, another creation of WOHNER Electric's "non-porous articulation skills" is the busbar adapter. The bus adapter is a transition part of the electrical equipment directly installed on the bus system. It can be used to install air circuit breakers, contactors and control appliances and other components of major international companies such as Germany Siemens, AEG, Klckner-Moeller, GE of United States, Schneider, Switzerland ABB, Japan Mitsubishi and other major international companies on the busbar. There are several types of bus adapters: the Eques Easycontroller and the Eques Easyconnectorer with integral insulated panels. The additional voltage is 690V; There are four specifications for each type by extra ammeter: 25, 32, 63 and 80A. They can be available without gauge rails or with 1-2 gauge rails. There is also a universal bus adapter with an additional voltage of 690V; There are 160, 200 and 630A_ specifications for additional currents. The universal busbar adapter is suitable for the direct installation of electrical components of larger specifications.
Eventually, w6HNER Electrical Systems has developed other series of products, such as a series of universal fuses for electrical cabinets, fuse disconnectors, universal and serial insulating components and protective parts. They do not belong to the field of busbar device type and "non-hole lap technology", so they are not the focus of our attention and will not be repeated here.
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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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A brief introduction to the classification of busway - Wiener
Busway (referred to as busway) is a busbar system composed of metal plates (steel plates or aluminum plates) to protect the shell, conductive bars, insulating materials and related accessories. It can be made into a plug-in closed bus with plug-in junction boxes at intervals, or as a feed-in type without a junction box in the center ...
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Dense busway with high insulation – Wienal
The dense busway is made of structure, with high mechanical strength, good sealing, fast heat generation, good shielding function and anti-chimney effect.
The conductor is constructed to overcome edge discharge and acute angle damage to the insulation.
Insulation selection extrusion ...
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Introduction to several power supply systems – Wienal
At present, China has five power supply systems: IT, TT, TN-c, TN-c-s and TN-S. They have their own advantages and disadvantages, and we should choose sensitively according to the actual situation in life.
Five power supply systems
1.IT power supply system
In a ...
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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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Vernal fuse core Siemens fuse alternative
Due to the long delivery time of the Wiener melt core, whether the Wiener fuse can be replaced by Siemens' fuse, the answer is yes, so it is recommended to use Siemens' Rong Xin, which corresponds to the following
3NA38012C NH-Fuse NH-,00(0 ...
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Wiener DC power supply busway classification
In general, the DC power supply system is composed of a communication screen, a rectifier screen, and a DC screen. After selecting a dense bus duct, it is necessary to adjust the conventional DC power supply system: one or two large-capacity DC split-screens are installed in the communication room, and a large loop output is set in the DC split-screen; In the power room ...
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What is the Wiener bus system
The Wiener bus system is a standardized system for bus spacing, which is used in low-voltage power supply and distribution switchgear, so that the bus can both conduct electricity and support electrical components. The system is divided into 40, 60, 100 and 185mm systems.
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Busway installation waterproofing work - Vernal
Most of the bus duct is the design standard for indoor use, so even if the humidity in the indoor air is relatively high, it will not have much impact on the operation of the busbar, but the bus duct enters the water during the use of the busway, which will definitely cause a certain degree of impact.
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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 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 small size, so that when there is a problem with the bus, the bus tie circuit breaker can be quickly tripped, cut off...
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Precautions for busway installation
1. Requirements for civil engineering before installation
1. The foundation, frame, reserved holes and embedded parts meet the planning requirements of electrical equipment.
2. After the construction of the roof and floor slab, there shall be no leakage.
3. After the indoor above-ground construction is completed, mark the leveling elevation on the wall on the ground.
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Characteristics of power system bus wiring mode
(1) Single bus wiring. Single bus wiring has the advantages of simple and clear, less equipment, less investment, convenient operation and expansion, but its reliability and activity are poor. When the bus or bus divider is faulty or overhauled, it is necessary to disconnect all power to the bus.
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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
The closure of the busbar, the closure of the busbar and the busway all refer to the same east...
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Advantages of Wiener aluminum busway
1. Reliable insulation method
There is an insulating layer on the conductive row, and there is a certain air yard between the phase and the phase, and there is an insulating pad block limited by DMC data between the conductive row and the shell, triple insulation, to ensure that the insulation of the bus duct is full of certainty, especially in the humid environment.
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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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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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The advantages of low-voltage closed busbar system without punching connections
1. Save space. The components are attached to the busbar, which can save 1/3 of the size of the box transformer.
2. Operation**. The busbars are placed behind the components, and the upper and lower plates can be sealed to prevent touch protection.
3. Improve the stability and reliability of operation, improve the dynamic and thermal stability, and the bus bar is not perforated.
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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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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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Introduction to the advantages of busway - Wiener
The advantage of the busway is that its structural design is simple, it is composed of metal plates, which can connect the circuits together, so as to achieve the safe and reliable transmission of electric energy. In addition, its structural design can effectively assist in reducing the occurrence of short circuits, reducing heat loss, and can effectively ensure the power ...
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