Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
Product Description
1. The air-type bus duct uses a single-bolt clamping terminal as a connecting element for the bus duct unit. Due to its special structure, it can prevent incorrect operation during installation. At the same time, as long as one bolt is tightened, two bus duct units can be reliably and quickly connected.
2. The air-type bus duct is designed with a safety protection baffle at the socket. The plug-in box can only be inserted when the protection baffle is pulled open. When the socket is not in use, the protection plate can be pulled closed and sealed with a lead seal to prevent the entry of dust and foreign matter at the socket, thereby improving the protection performance of the bus duct, preventing misoperation, and greatly improving the safety of the bus.
3. The air-type bus duct is designed with 5 current levels and only 3 levels of shells are used. In this way, when the system changes capacity according to adjacent levels, the bus duct does not need to replace the shell, such as when 400A changes to 630A, the shell size is the same. Therefore, it greatly facilitates installation.
4. The air-type bus duct insulation adopts separated air insulation, which improves the heat dissipation of the bus duct, lowers the impedance, and achieves economical power transmission in the bus duct.
Product Parameters
| Item |
|
| Insulation resistance |
The insulation resistance value of each enclosed bus unit should be greater than or equal to 100MΩ |
| Dielectric strength |
Each enclosed bus is subjected to a 1-minute power frequency dry test voltage withstand test before leaving the factory |
| Grounding system |
Meets the requirements of IEC364-5-54 for grounding system. |
| Protection level |
Indoor type: IP40; Outdoor type: IP43, IP55. |
| Load performance |
Under rated current, the temperature rise of the shell meets the requirements of GB763-90 Heat Generation During Long-term Operation of AC High-voltage Electrical Appliances. |
| Short-circuit performance |
Dynamic thermal stability test meets the requirements of GB2706-89 Dynamic thermal stability test method for AC high-voltage electrical appliances. |
| The power frequency withstand voltage and lightning impulse withstand voltage values meet the national standards. |
Service Environment
Ambient temperature: +40ºC ~-25ºC
Altitude: below 2000m
Humidity: humidity does not exceed 50% at +40ºC;
Condensation conditions: yes
Earthquake basic intensity: 6-degree fortification
Installation location: indoors, outdoors
Certifications
1. The air-type bus duct uses a single-bolt clamping terminal as a connecting element for the bus duct unit. Due to its special structure, it can prevent incorrect operation during installation. At the same time, as long as one bolt is tightened, two bus duct units can be reliably and quickly connected.
){kind=link}