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KYN28-12 high-voltage switchgear
Source: Leapingsoar Electric 2024-05-10 44 Secondary browsing

Product Overview
KYN28A-12 armored movable metal enclosed switchgear is suitable for three-phase AC 50Hz, 3.6-12kV single busbar and single busbar segmented power systems, and is used as a transmission control device for receiving and distributing electrical energy. Mainly used for power plants, small and medium-sized generators for power transmission, industrial and mining enterprise distribution, and secondary substations for power systems, as well as for starting large high-voltage motors.
Usage environment

Number

Name

unit

Demand value

1

Surrounding air temperature

Maximum temperature

℃

＋40

Minimum temperature

—25

Maximum daily temperature difference

K

25

Average temperature of the hottest month

℃

30

Maximum annual average temperature

20

2

altitude

m

≤1000

3

Pollution level

 

Level III

4

humidity

Average daily relative humidity

%

≤95

Average monthly relative humidity

≤90

5

Earthquake tolerance (horizontal acceleration)

m/s2

0.2g

6

Due to the auxiliary and control functions of the opening and closing operations in the main circuit
The amplitude of the common mode voltage induced on the circuit

kV

≤1.6

Referenced standards
GB/T 11022 Common technical requirements for high-voltage switchgear and control equipment standards
GB 1207 Electromagnetic Voltage Transformers
GB 1208 Current Transformers
GB 1984 High Voltage AC Circuit Breakers
GB 1985 High Voltage AC Isolation and Grounding Switches
GB 3906 3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment
GB/T 5585 Copper, Aluminum and Their Alloy Busbars for Electrical Purposes
GB 6450 Dry type power transformers
GB 11032 Metal oxide surge arresters without gap for AC
GB/T 12022 Industrial sulfur hexafluoride
GB 15166.2 High voltage AC fuses Part 2: Current limiting fuses
GB 50150 Electrical Equipment Installation Engineering Electrical Equipment Handover Test Standard
GB/T 4109 Insulating Bushings for AC Voltage Above 1000V
Technical specifications for locking devices of SD 318 high-voltage switchgear
DL/T 402 Technical Conditions for Ordering High Voltage AC Circuit Breakers
DL/T 404 3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment
DL/T 486 High voltage AC isolation switch and grounding switch
DL/T 593 Common technical requirements for high-voltage switchgear and control equipment standards
JB/T 10305 Technical Conditions for Organic Material Post Insulators for High Voltage Equipment Users Between 3.6kV and 40.5kV
IEC 62271-100 High Voltage AC Circuit Breakers