1. Energy saving: The energy fed back when the motor brakes can be used, so it is more energy-saving, especially for oilfield kowtow machines, cranes and other lifting equipment.
2. The power element of the equipment is high: because the motor can feed back energy and the reactive power loss is small, the power element of the equipment is high, reaching more than 95%;
3. Instantaneous power failure is not the same, which will lead to the tripping and shutdown of the inverter: this is because some equipment may be in the state of braking (power generation, feedback energy) during the instantaneous power failure, so the impact of instantaneous power failure interference on the equipment is not so great;
4. Low harmonics of the power grid: the shared DC bus balances the DC bus voltage of the inverter, and the impact on the power grid when the equipment starts and stops is also low;
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More on that
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The main components of the Wiener bus system in the distribution cabinet are composed
The Wiener bus system is divided into 40mm, 60mm, 100mm and 185mm systems according to the upper and lower spacing between the copper bars, and the ship unloader distribution cabinet mainly adopts a 60mm rectangular bus system. This is shown in the figure below. The 60mm system provides maximum operating space and maximum current with its smallest external size.
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Spring bracket installation steps in busbar system – Vernal
The function of the tension spring bracket in the bus system is to fix the orientation and stability of the bus duct, and it must be very careful during construction, otherwise the bus duct will fall, which will cause a very serious accident.
The device step of the tension spring support in the bus system ...
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Strip Switch vs. Disconnector Circuit Breaker Comparison – Wiener
Bar switches are different from regular switches. They are critical to ensuring effectiveness. For example, when the current exceeds a certain amount of time, they cause heat to be generated, allowing the fuse to switch the fuse to further assist in breaking the circuit. Therefore, as a kind of current protection device, they can achieve ...
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Introduction of busbar, busway and busway bridge - Vernal
generatrix
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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Introduction to the Wiener busbar system
The 60mm bus system refers to the three- or four-wire bus spacing of 60mm.
In the 60mm bus system, the different cross-sectional areas of rectangular copper bars or special-shaped copper busbars such as 2T and 3T can be used to achieve the optimal distribution of current intensity levels, ...
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Classification of busway – Vernal
According to the different uses of the bus duct, the bus groove is generally composed of the start bus slot, the straight bus slot (without partition jacks and jacks), the L-shaped straight (horizontal) curve bus, the Z-shaped straight (horizontal) offset bus, the T-shaped straight (horizontal) tee bus, the X-shaped straight (horizontal) four-way bus, the transformer...
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A detailed description of the Wiener comb busbar and connection terminals
The Wiener comb busbars and connection terminals are available with QUADRON®CrossLinkBreaker in size 000/00
Recommended installation: Wire entry at the lower end of the NH-fuse disconnector through the comb busbar.
In the installation position and ...
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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.
1. In the 60mm bus system, the different cross-sectional areas of rectangular copper bars or special-shaped copper busbars such as 2T and 3T can be used to achieve the best classification of current intensity grades.
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The application of Wiener bus system wiring technology in box transformer
The bus system is to directly connect the components to the bus, the bus does not need to be perforated, at this time, the bus is not only the conductor of the component, but also the support of the component, the current can reach 2500A, so that the box transformer function has the following progress:
1 ...
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Introduction to the Wiener data center bus system
Although the service life cost of the bus system is usually lower than that of the traditional wiring method, the bus system still bears a considerable cost compared with other structural elements of the water supply and drainage or HVAC system.
In addition, customized busbar equipment allows the busbar system to be routed around obstacles ...
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The technology of the main bus bar in the low-voltage open light cabinet - Winer
One of the characteristics of the Wiener low-voltage switchgear is the multi-functional busbar system. The bus bar is a conductor that connects large electrical equipment such as generators and transformers with various electrical devices. The role of the bus bar is to transmit electric energy with the, and the bus bar is the main equipment constituting the electrical wiring. ...
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Mesh tray reduces the cost of replacing cables – Wiener
(1) Simple maintenance and repair operations
Equipment is often added or removed or changed in the computer room, and cables are removed or added at the same time, and the grid bridge with open structure can observe the cables to the maximum extent, so it is easy to distinguish the cables that need to be replaced, so that maintenance and repair ...
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Low-voltage enclosed busway function - Wiener
Phase-off bus is a kind of high-current transmission equipment widely used in the outgoing circuit of generators of 50MW and above and the branch circuit of the factory
The phase-off busbar, conductor and shell are made of aluminum plate coil and welding, with the following characteristics: ...
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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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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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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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Aluminum alloy busway circuit continuity - Wiener
The continuity of the aluminum alloy bus duct maintenance circuit is related to the PE line, and the crossover PE wire conductor bus of the maintenance conductor and the two-unit bus bar should reach 50% of the phase line, the equivalent cross-sectional area. The continuity resistance of the housing and PE line maintenance circuit is ≤ 0.005 ohm female, and the unit with jumper wire is not less than the maintenance conductor.
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Laminated busbar system – Wiener
In the power system, the bus connects the various current-carrying branch circuits in the power distribution device together, and plays the role of collecting, distributing and transmitting electric energy; According to the appearance and structure, the bus bar is roughly divided into three categories: hard busbar, soft busbar and closed busbar.
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Application advantages of industrial busway - Wiener
1. It has a modern beauty;
2. Small dimensions;
3. Strong and light weight, simple operation;
4. The connection is very simple (just like connecting water pipes, connecting sections through tees, elbows and other joints to make them into a system;
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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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