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High-voltage-common-box-Busway

Short Description:

GFM serial co-box enclosed bus is a new type of bus channel which is commonly developed by this Factory and many scientific research institutions in China. It is suitable for the supplying and distributing systems of A.C. 50~60Hz. 3.6~40.5KV voltage and 400~3150A rated current.


Product Detail

Product Tags

Structural features

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软连接

The serial bus ducts have the excellent short-circuit resistance. Due to it that they have the protection of aluminum (or weak magnetic steel plate) shell, they can effectively weaken the structural heat caused by eddy current or circulating current, reduce the temp. rise of shells, decrease the consumption of energy, raise the current-carrying capacity and lower the electrodynamic power.

The bus duct is advanced in structure. The installing and service holes can be optionally set on the upper or lower parts of the bus duct. To the indoor bus duct with a large current, there are ventilating louvers on the two sides and the upper part or the lower part of the shell to strengthen the heat radiation and reduce the temp. rise.

Adopt the double insulation and multipoint earth of the shell body to decrease the work capacity of maintenance obviously and raise the security remarkably.

In order to solve the negative influence upon the bus duct from the vibration caused by the transformer, motor, and distributing cabinet in running. Adopt flexible connection or copper woven belt in the places between bus ducts and them, add the rubber pad to the places between shells to lighten the vibration. To the body of bus duct, install the vibration damper inside the bus duct system. To porcelain insulator and conductive bar, the elastic support is realized to avoid the damage to the enclosed bus from the mechanical vibration caused by shell and the seismic waves.

Main Technical Parameters

  • Insulating resistance: the insulating resistance value of every section of bus duct ≥1000MΩ (2500V megohmmeter)
  • Dielectric Strength: Every section of bus duct should be tested through 1 minute frequency voltage endurance before leaving factory. The value of frequency voltage endurance and lightning impulse withstand voltage, please see Table(1)
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  • Earthing system: conforms to the earthing system requirements of IEC364-5-54.
  • Protecting grade: indoor type IP30 and outdoor type IP40 (add the rainproof cover)
  • Loading performance: The temp. rise of shell under rated current conforms to the requirments of GB763-90 "The Dynamic & Thermal Standing Experiment Method for A.C. High Voltage Electric Appliances".
  • Short-circuit Performance: The dynamic & thermal standing experiments conform to the requirments of GB2706-89 "The Dynamic & Thermal Standing Experiment Method for A.C. High Voltage Electric Appliences".
  • The boundary dimension of cross section of bus duct and weight/m, see Drawing(1) and Table(2).
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The bus duct is used as the electrical connection between generator and main transformer, transformer and high voltage distributing cabinet and the main loop of high voltage equipment in power plants, industrial and mining enterprises and other places. The supply length is 2m/section, in general, a single section is not more than 3m.

Connection and Installation

  • The connection of bus ducts.
The connection of bus ducts
  • Bus duct Installation against wall
Bus duct Installation against wall
  • Bus duct horizontal suspending installation.
Bus duct horizontal suspending installation
  • Bus duct vertical installation.
母线槽垂直安装

Packaging&Transport

FAQ

Q:What are your prices?

A:The prices of our products fluctuate according to the daily price of raw materials and you can always contact us for the latest daily prices.

Q:Are you a manufacturer or trading company?

A: Zhenjiang Sunshine Electric Group Co., Ltd.(YG-Elec) is a professional manufacturer of busway system for 20 years.

Q:What is your payment term?

A: Our usual payment is 30%TT in advance ,70%TT before shipment (the bill of landing). For small quantity, we also accept Paypal and some other ways can also be done after discussion.

Q:Can I buy samples or small orders first and is the sample fee refundable?

A: Of course. We accept samples and small orders especially for new customers and of course the sample fee will be refundable when your order is confirmed.

Q:How soon will the order be delivered?

A: The delivery time depends on the quantity you ordered, generally about 15-30 days after deposit of payment.

Q:What is the quality of your products?

A: Quality is the life of our enterprise. As a factory, we can control all processes of production 100% and every single product will be tested qualified before shipping.

Q:How long is the warranty of your products?

A: Our warranty period is usually one year. But the warranty period can be extended after discussion and agreement.


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