ZN28-12 Vacuum Circuit Breaker

Overview:

Zn28-12 Vacuum Circuit Breaker, rated voltage 12kV, product standard GB1984-89. It is the basic type of one-piece structure ZN28-12 Vacuum Circuit Breaker .

Applicable scope：

ZN28-12 Vacuum Circuit Breaker is a three-phase AC 50Hz, rated voltage 12KV indoor AC high-voltage electrical equipment, mainly used for fixed switch cabinets, or to replace oil-free circuit breakers in old switch cabinets.ZN28-12 Vacuum Circuit Breaker can also be installed and used in removable switchgear as a protection and control element of electrical equipment, and is suitable for places with frequent operations.The product conforms to GB1984 and JB3855 standards.

Advantage：

1.  Strong arc extinguishing ability, short arc burning time and short full breaking time.

2. The electrical wear of the contacts is small, the electrical life is long, and the contacts are not corroded by external harmful gases.

3. The contact opening distance is small, which reduces the operating work of the operating mechanism and the mechanical life is long.

4. The structure is simple, the maintenance workload is small, and the vacuum arc extinguishing and contact do not need to be overhauled.

5. Small in size and light in weight.

6. Small environmental pollution.

Use environment：

a) The ambient air temperature does not exceed +40℃, the lower limit; -25℃,

b) The altitude does not exceed 2000M

c) Humidity; the daily average relative humidity is not more than 95%, the monthly average is not more than 90%; the daily average water vapor pressure is not more than 2.2KPA, the monthly average is not more than 1.8KPA

d) The surrounding air should not be significantly polluted by corrosive or flammable gas and water vapor

e) Infrequent strenuous exercise

f) When the contactor moves, the inclination angle between the installation plane and the horizontal is not more than 5o

g) Requirements beyond the above conditions shall be agreed by the user and the manufacturer

ZN28-12 Vacuum Circuit Breaker

Installation size (Unit:mm)

Detailed Picture:

 

ShanxiHuadiand Electric Co.,LTD. Located in Baoji high-tech development zone,Shanxi province. A modern high-tech enterprise specializing in the production of Vacuum Circuit Breakers interating,manufacturing and sales.

The products have been widely used in power plants, metallurgy, petrochemical, railway, mining, radio and television, urban construction and rural network transformation projects, and are highly praised and favored by users with high­quality products and excellent services. 

The company produces 10,000 sets of intelligent high voltage power distribution equipment annually, and the equipment production capacity and testing level are in the forefront of the same industry in the country. Products are widely used in power equipment, municipal engineering, water conservancy facilities, metallurgy and petrochemical, rail transit and other industrial occasions and airports, schools, institutions, high-rise buildings and other civil systems

Shaanxi Huadian Electric Co., Ltd. takes "creating a world-famous brand and building a century-old Soling" as its corporate vision, and helps customers optimize power in electric power, industry, transportation and infrastructure industries by providing customers with overall solutions and optimization solutions for power equipment, improve urban ecology, save energy consumption, and promote the green, energy-saving and sustainable development of Chinese society.

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