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GFM series high voltage common box busbar
GFM series high voltage common box enclosed busbar (3-35kv / 250A ~ 4000A) was developed by our company in the late 1980s according to the market requirements. It is widely used in power plants, iron and steel companies, hydropower stations, thermal power stations between the high-voltage distribution cabinet and generator transmission and distribution lines. The series busbar from the shell production to the treatment of the bus bar, all manufacturing processes are using industry-leading technology, all in the company's production of GFM series high voltage busbar process has the best electrical control and the most economical and reasonable technical design.
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GFM series high voltage common box busbar

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1、 Overview

GFM series high voltage common box enclosed busbar (3-35kv / 250A ~ 4000A) was developed by our company in the late 1980s according to the market requirements. It is widely used in power plants, iron and steel companies, hydropower stations, thermal power stations between the high-voltage distribution cabinet and generator transmission and distribution lines. The series busbar from the shell production to the treatment of the bus bar, all manufacturing processes are using industry-leading technology, all in the company's production of GFM series high voltage busbar process has the best electrical control and the most economical and reasonable technical design.



2、 Product model


20190618141319_86223


3、 Use environment

Maximum operating voltage: 1 kV

Rated frequency: 50 Hz

Altitude: ≤ 1000 m

Solar radiation intensity: 0.11 w / cm2

Maximum icing thickness: 10mm

The average maximum wind speed of 10 min is 35 m / s at the height of 10 m above the ground

Ambient temperature: maximum temperature 40 ℃, minimum temperature - 25 ℃, maximum daily average temperature 35 ℃

Installation site: indoor / outdoor


Form GFM series high voltage enclosed busbar can be divided into indoor type and outdoor type. It can be divided into normal installation (installation and maintenance up) and inverted installation (installation and maintenance down) in the form of installation.
Applicable to It is suitable for the electrical connection between high voltage transformer and high voltage distribution board, as well as the output circuit system of generator set.
Power distribution mode Three phase three wire
Rated voltage 3.15kV~35kV
Rated current 250A~6300A
Rated frequency 50HZ~60HZ
Box Weak magnetic steel plate or aluminum alloy is used as the box shell.
Grounding system Meet the requirements of iec346-5-54 grounding system.
Degree of protection Indoor type: IP40, outdoor type: IP54
Load performance Under the rated current, the temperature rise of the shell meets the requirements of GB / T763-1990 for long-term operation of AC high voltage apparatus.
Short circuit performance The dynamic stability test meets the requirements of GB2760 standard.
Thermal stability test It meets the requirements of GB2706-81 standard.
Insulation performance It meets the requirements of GB / T11021.

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