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.
Second, WOHNER Electric Systems has developed a multi-standard modular bus system, and its bus system has diversified modules and standards, 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"). generatrix
The short-time withstand current of the system reaches 50 kA (1s), and the peak withstand current reaches 117 kA (three-wire) / 120kA (four-wire).
WOHNER Electrical Systems has also developed a series of busbar adapters and a variety of busbar terminal blocks using the "Holeless Lap Technique" – universal busbar adapters, wire nose bolt couplings and three-phase combination 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 linear and 900-turn types of soft connections: the conductor cross-section can be rectangular copper and aluminum bars, and the circular or even sector-shaped cables can be connected. 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 of WOHNER'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 companies in the world such as Germany Siemens, AEG, Klckner-Moeller, United States GE, France Schneider, Switzerland ABB, Japan Mitsubishi and other major companies in the world 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.
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Introduction of busbar, busway and busway bridge - Vernal
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In the field of electricity, the busbar can also be called the busbar, busbar, etc., most of which refer 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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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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Frequently Asked Questions for the Installation of Closed Busbars – Vernal
1. The cable in and out of the bridge is not piping
2. The orientation of the bridge grounding and crossing is incorrect, and the special grounding line of the spray or painted bridge device is not equipped with a special disc gasket
3. The fireproof board of the electric well is not fixed, and the fireproof plugging is not perfect
4. The bridge is opened at will, and no standard accessories are used.
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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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The service life of the lighting power busway – Wienal
The system consists of a current box, a bus body, a branch plug and device accessories.
When the heat dissipation of conductive copper strip is effectively improved, the contact between the copper strip and the inner wall of the tube is reduced, the insulation resistance and anti-aging ability of the tube body are strengthened, and then the service life of the tube body is extended. The longevity of the tube far exceeds ...
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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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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 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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Fuse selection method - Wiener busbar
1. Select the model of the fuse according to the circuit requirements and device conditions. Circuits with small capacity are semi-enclosed or enclosed without fillers; The selection of large short-circuit current has a packing closed type; Semiconductor component maintenance selection of quick fuses.
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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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Low-voltage cabinet for capacitance compensation – Wienal
Capacitor compensation is indispensable in low-voltage cabinets, so what is the effect of capacitor compensation. The meaning of this is that it acts as a capacitor. Let's take a look at the principle of capacitor compensation first, when the capacitor is compensated, the capacitor and the load are connected in parallel, and the capacitor is like a bin. When the load increases, the power supply has internal resistance, so that ...
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What is tubular busbar and dense busbar - Wiener
What is a tubular busbar
Tubular bus bar is a kind of bus bar product with copper tube or aluminum alloy tube as conductor and external insulation. The tubular bus has the characteristics of high current (12000A), high mechanical strength, good insulation, wide application range, etc., ...
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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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Example of the application of the Wiener busbar system
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 connected to the copper bar through a special bus adapter, and all the motor maintenance switches and contactors are hooked on the bus adapter in an orderly manner.
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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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Advantages of a shared DC bus system – Wienal
The shared DC bus system is the future development direction in the application of multi-drive motors, which makes reasonable use of the regenerative energy of the system together with better dynamic and static functions and speed regulation accuracy, eliminating a lot of braking units and braking resistors, and the energy efficiency ratio of the system has been greatly improved.
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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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What are the specific accessories of the busway - Wiener
1. Connecting copper plates, insulating plates, and insulating piercing screws generally refer to tension spring brackets, bus connectors, connecting copper bars, and plug-in boxes. The bracket is used for buffer busbars to squeeze each other during connection, and the adapter is used for connection. The connecting copper bar is the local use of the box and the bus connection of the cabinet connection.
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Types of busbars, conditions for the scope of application - Wiener
1. Commonly used busbars, useful categories
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.
Rectangular busbars are the most commonly used busbars and are also busbars. According to its material ...
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Busbar system segmentation understanding - Wiener
The so-called "section" of the bus bar is that the data that constitutes the bus are directly connected, and there is no circuit breaker or blocking switch in the center. A circuit breaker or barrier switch in the center is called a "segment".
Different voltage levels cannot be connected in the same section. No...
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