Single-pole Aluminum Busbar
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Mobile equipment needs to constantly change positions due to movement, and at each different position, it must be able to obtain power supply at any time, otherwise it cannot continue moving. At this point, busbar came into being. Several conductors are laid parallel along the running track of the mobile equipment and connected to the power supply. On the moving equipment, a current collector is installed that can draw power from the conductors. In this way, when the equipment moves, the current collector moves synchronously with the equipment and continuously obtains power from the conductors to supply the equipment, allowing it to continue moving. The device composed of these conductors and current collectors is called a busbar.
The power supply busbar device consists of three main components: the sheath, conductor, and current collector, as well as some auxiliary components.
1. Sheath: It is a semi-enclosed tubular component and the main part of the busbar. Its interior can be embedded with 3-16 bare guide rails as power supply conductors as needed, and each guide rail is insulated from each other to ensure the safety of power supply. It also effectively prevents electric shock accidents for maintenance personnel during live maintenance. Each length of the conduit produced by the manufacturer varies and can be connected to any required length. Ordinary conduits are made in straight shapes, but can also be made into arc shapes according to special requirements.
2. Conductor: The main material is copper, and common cross-sectional areas include 10 square millimeters, 16 square millimeters, and 25 square millimeters.
3. Current collector: It is a set of brush shells running inside the conduit, driven by a fork (or traction chain, etc.) installed on the power-consuming mechanism (such as a crane, trolley, electric hoist, etc.), so that it moves synchronously with the power-consuming mechanism and transmits the electrical energy from the guide rails and brushes to the motor or other control elements. The number of poles of the current collector brushes ranges from 3 to 16, corresponding to the number of guide rail poles in the conduit.
(2) Product Features
1. Safety: The housing of the power supply busbar is made of engineering plastic with high insulation performance. The protection level of the housing can reach IP13 and IP55 as needed, protecting against rain, snow, ice attacks, and contact with hanging objects. The product withstands various environmental conditions. It has good insulation performance and poses no harm to maintenance personnel touching the outside of the power transmission conduit.
2. Reliability: The power transmission guide rail has excellent conductivity, fast heat dissipation, high current density, low impedance, and low line loss. The brushes are made of metal graphite material with high conductivity and high wear resistance. The current collector moves flexibly, has good directional performance, and effectively controls contact arcs and series arcs.
3. Economy: The power supply busbar device has a simple structure, using copper bars with high current density, low resistivity, and low voltage loss as the main conductive body. It can save about 6% of electricity, achieving the replacement of steel with plastic and copper with plastic. The design is novel, requiring no additional insulation structure or compensation wires. It is installed on the same side as the crane control room, saving installation materials and costs. Its overall cost is roughly the same as that of steel bare busbar.
4. Convenience: The power supply busbar device integrates multiple levels of busbars into one conduit, making assembly simple. Its fixing brackets, connecting clamps, and suspension devices are supplied as universal parts, making installation, disassembly, adjustment, and maintenance very convenient.
Single-pole aluminum busbar, single-pole copper busbar, multi-pole safety busbar, double-hook copper busbar
Busbar, also known as sliding wire, is a set of power transmission devices that supply power to mobile equipment.
It is mainly divided into single-pole aluminum busbar, single-pole copper busbar, steel body busbar, multi-pole tubular busbar, seamless busbar, copper contact wire, and other commonly used busbars. Single-pole busbar, multi-pole tubular busbar, and seamless busbar belong to safety busbar, while steel body busbar belongs to non-safety busbar.
Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.
