Cases

Project Overview The Jing ji Smart Science Park project is located in Shenzhen and is an urban complex that integrates high-end industrial research and development offices, supporting dormitories, and large-scale commercial facilities.   Project requirements Separate power supply for lower and higher floors of the project; The wiring environment in the basement is complex and variable, so high protection level medium and high current busway products are selected; There are high requirements for the busway wiring scheme and product current stability. Solution The slot team configures corresponding bus duct products according todifferent application scenarios of the project. IP54 busway is used for indoor power supply, and IP65 and IP66 busway are used for basement and high-rise power distribution; Establish an after-sales service team in Shenzhen to provide 7* 24-hour customer service support; Regular on-site maintenance and upkeep to ensure long-term electrical safety of the project; Project results The Party A and the general contracting unit express their gratitude and affirmation to the products and services provided by the Ohory team.

Project Overview Invested and constructed by Haitian Group, a leading enterprise in the global injection molding machine industry, with a total initial investment of approximately 5 billion yuan, covering an area of nearly 500 acres. The project is mainly used for the production and manufacturing of intelligent injection molding machines, and plans to introduce related businesses such as CNC machine tools, robots, automation, and intelligent manufacturing. At the same time, we will introduce high-quality enterprise projects upstream and downstream of the industrial chain, and create a high-end molding equipment intelligent manufacturing industrial park that forms a radiating area.   Project requirements Strict selection and evaluation of suppliers, with the highest comprehensive score being shortlisted for cooperation;Customized products and compatible tap changer units;Eliminate temperature difference condensation and water accumulation.   Solution Customize conductors and external dimensions as needed and provide valid type test reports;Configure corresponding 400A plug-in boxes according to different application scenarios of the project to meet downward compatibility; Closed structure design. The Ohory team provides factory audit support services, recording the raw material inspection process through video and uploading it on time for customers to view.   Project results The project team highly recognizes the professional problem-solving ability of the slot company team. The company has been able to complete the installation of the bus duct multiple times in advance and has also received praise from the project team.

Project Overview Before the Chinese New Year, We received a project from the Beijing Railway Bureau, requiring the completion of replacement and commissioning services for nearly a kilometer of bus ducts in the high-speed train maintenance base during the Spring Festival period, to ensure the normal operation of the high-speed train maintenance base and the maintenance center of the northem section of the Beijing Shanghai high-speed railway.   Project requirements The project landing must be completed within the specified time; Construction personnel need to report in advance and are not allowed to change personnel midway; The construction site is located on the -2 to -3 floors below the track, with severe water vapor erosion and full of biogas. A safe and reliable construction plan needs to be provided to ensure safety.   Solution The team was tasked with developing a "Busway landing solution" within 24 hours of crisis, working overtime to complete product customization production, and timely and effectively ensuring the smooth progress of project landing. We also provided free handling of branch unit wiring for the owners on site, completed the service ahead of schedule, and restored the daily operation of the high-speed train depot base.   Project results After the day and night construction work of the team, the project achieved power transmission ahead of schedule, which received high praise from the owner.

Project OverviewBYD brand covers four major industries: automobile, rail transit, new energy, and electronics. BYD has established multiple automobile industry bases and has reached international leading levels in vehicle manufacturing, mold research and development, and vehicle development. Ohory has served multiple production bases across the country, including Nanjing, Changzhou, Ningbo, Hefei, Shanwei, and Shenzhen. Project requirementsAfter strict supplier screening and evaluation, nearly 30 brands competed on the track. The top three brands with the highest comprehensive scores were shortlisted and entered the brand library to obtain cooperation qualifications;The factory consumes a lot of electricity and needs to be equipped with high-current branch units. The bus duct has many power supply circuits, a large horizontal span, and an average installation height of more than 8m, which makes installation difficult;The factory construction pace is fast, and nearly one kilometer of bus duct production and supply needs to be completed every week.SolutionThe Ohory team optimized the design drawings provided by Party A, and while ensuring the current power demand, provided a new power supply plan in advance for the future expansion and line transformation of the factory.Customize high-standard bus duct products according to Party A's technical requirements;After determining the construction period, arrange the installation team to enter the site in advance to install the bus duct bracket to speed up the progress of the project.

The bus duct is a bus system composed of a metal plate as a protective shell, conductive bars, insulating materials and related accessories. If the bus duct passes through the floor, waterproof steps must be made first, no water pipes are allowed around the bus duct, no fire sprinklers are allowed, etc. All of these are necessary measures to prevent ordinary bus ducts from being waterproof. The bus duct has strong heat dissipation capacity and uses double-connected copper bars to effectively increase the joint contact area and greatly reduce the temperature rise of the joint.   Bus duct is suitable for power supply and distribution systems with AC three-phase four-wire and three-phase five-wire systems, frequency 50~60Hz, rated voltage up to 690V, and rated operating current 250~5000A. It is used as power supply and distribution in industries, mining, enterprises and high-rise buildings. Auxiliary equipment for equipment, especially suitable for the renovation of workshops and old enterprises. According to the shape, it is divided into straight-through busbar, L-shaped horizontal bend, L-shaped vertical bend, Z-shaped horizontal bend, Z-shaped vertical bend, T-shaped horizontal tee, T-shaped vertical tee, busbar with plug-in interface, and starting busbar .   The bus duct serves as the main line. If a short circuit occurs for some reason, the entire line will lose power. If the bus duct is short-circuited, it is basically caused by quality problems. This requires manufacturers to strictly control quality and produce qualified products to effectively avoid the occurrence of faults. If a short circuit fault occurs in the bus duct system, it can be repaired and put into use, which is more cost-effective, economical and practical than cables. Bus ducts are expensive, require a large installation area, have a long installation cycle, and are labor-intensive, so the one-time investment is large. The bus duct is small in size and consumes little energy; it uses high-conductivity copper bars, which results in low losses and high transmission efficiency.   The bus duct can be made into a plug-in bus duct with plug-in junction boxes at regular intervals, or a feed-type bus duct without a junction box in the middle. In the power supply system of high-rise buildings, power and lighting lines are often set up separately. The bus duct, as the main power supply line, is installed vertically along the wall in one or more passes in the electrical shaft. According to the insulation method, bus ducts can be divided into three types: air plug-in bus duct, densely insulated plug-in bus duct and high-strength plug-in bus duct. Because the short-circuit strength of the bus duct is closely related to the structure of the bus duct, the dense bus duct structure will be more compact.

The contact resistance and temperature rise of the connection points at both ends of the bus duct and the plug-in connection of the branch line, and the use of high-quality insulation materials in the bus duct, thereby improving the reliability of the bus duct and making the entire system more complete. After all bus voltages disappear, the dispatcher should immediately turn on the switch that may be called (including the bus tie switch) and notify the operation team to conduct an external inspection of the bus. When the bus slotting voltage disappears due to a fault and obvious short circuit signs appear, the operating team members are not allowed to resume operations on their own and should conduct a detailed inspection of the bus equipment.   The failure of the components connecting the bus duct and the busbar or the failure of the parallel switch causes the busbar to lose voltage, so the busbar should be inspected in detail. After isolating the faulty component of the bus duct or opening the knife doors on both sides of the faulty shunt switch, the busbar should quickly resume operation and be discharged from another parallel device. Bus ducts are well used in some high-rise buildings and large factories. They are mainly used in power supply systems to make the wiring of the power system simple. However, the busbar duct will be hot and cold during operation. The insulation layer will expel moisture when it is hot and absorb moisture when it is cold. This will reduce the insulation quality and the joints will become loose and oxidized.   Bus ducts need to be maintained and inspected regularly. During maintenance and inspection of bus ducts, usually check whether all fasteners and the contacts of the conductive parts are loose; check whether the insulating materials have deteriorated and aged, and whether the conductive parts have melted and deteriorated. ; Check whether there is any foreign matter entering the bus duct or whether there is water seepage. The metal enclosed shell of the busbar can protect the busbar from mechanical damage or animal damage. The installation of plug-in units in the power distribution system is reliable. The shell can be grounded as a whole. The grounding is very reliable, while the PVC shell of the cable is susceptible to mechanical and animal damage. If the cable is damaged, the power supply must be cut off before installing the cable.   It will be very dangerous if an error occurs, especially if the cable needs to be grounded on site. Unreliable grounding will increase the risk. The busbar uses copper or aluminum busbars, which have high current density, low resistance, small skin effect, and do not need to be derated. Small voltage drop means small energy loss, saving users' investment. For cables, since the cable core is a multi-stranded thin copper wire, its root area is larger than that of a busbar with the same current level. Increased voltage drop and prone to heat generation. The energy loss of the line is large and it is easy to age.