KYN28A-12 (GZS1-12) Model Indoor AC Metal Clad Intermediate Switchgear

KYN28A-12 is a common high-voltage switchgear with a rated voltage of 3.6kV to 12kV. Rated current up to 3150A, AC 50/60HZ. This switchgear is suitable for receiving and distributing electric energy, as well as controlling, protecting and measuring circuits. It is widely used in power plants, substations, power distribution centers of industrial and mining enterprises, etc.

TSTY Electric Co., Ltd.

Main Technical Parameters

Item	Unit	Data
Rated voltage	kV	3.6, 7.2,12
Rated frequency	Hz	50
Rated current of circuit breaker	A	630,1250,1600, 2000,2500,3150,4000,5000
Rated current of switchgear	A	630,1250,1600, 20002500,3150,4000, 5000
Rated short time withstand current (4s)	kA	1620,25,31.5,40,50
Rated withstand current (peak)	kA	40,50, 63,80, 100,125
Rated short circuit breaking current	kA	16,20,25,31.5,40,50
Rated short circuit closing current (peak)	kA	40,50, 63,80, 100,125
1 min power frequency Between poles? pole to earth	kv	24,32,42
H3TPn withstand voitase between open contacts	kV	24,32,48
insulation Lightning impulse Between poles, pole to earfli kV	KV	40, 60, 75
"ye* withstand voltage (peak) Between open contacts	kV	46, 70,85
Protection level	Shell: IP4X; IP2X when the CPT and CB doors are open.

Note: 1. The short circuit capacity of the current transformer should be separately considered.

2. See technical parameters of ZN63A-12 in related catalogues of our company.

Structural Diagram of Switchgear

A、 the bus bar room Structural diagram of switchgear

B、 the circuit breaker handcart room

C、 the cable room

D、 the relay instrument room

1、 cover

2、 branch small bus bar

3、 bus bar pipe

4、 main bus bar

5、 static contact installation

6、 contact box

7、 current mutual induction

8、 earthed switch

9、 cable

10、 arrester

11、earthed main bus bar

12、 mother board

13、control the small bus bar

14、 earthed switch operating mechanism

15、draw-out horizontal clapboard

16、 heat installation

17、circuit breaker handcart

18、twice connector

19、clapboard (valve )

20、loading and unloading clapboard

21、decompression channel

Automatic Production Line

Relying on Schneider's benchmark intelligent production line, we create a fully automated production model of "the cabinet moves but the people do not move". Manual intervention is reduced by 70%, the production cycle of a single cabinet is compressed to 30 minutes, the production capacity is increased by 30%, and the process is fully benchmarked against IEC/GB international standards. From precision manufacturing to environmental protection upgrades, we use the dual-wheel drive of "technology + efficiency" to ensure that each switch cabinet has both industrial aesthetics and ultra-long life to meet the needs of global high-end power projects.

TSTY Electric Co., Ltd.

Strict Quality Control

1. Full-link intelligent detection technology
Real-time monitoring of key states: infrared temperature measurement technology, partial discharge monitoring, intelligent sensor network, three-level quality firewall,
100% spectral detection of raw materials, 20+ key points in the production process, 72 hours of full project experiment before leaving the factory.
2. Extreme environment reliability guarantee
30-year ultra-long protection commitment: using 316L stainless steel substrate + nano-ceramic coating, passing 3000 hours of salt spray/200 hot and cold cycle tests, high UV resistance level

TSTY Electric Co., Ltd.

R&D Advantages

TSTY currently has 600 employees and a technical R&D team of more than 200 people. It has established a science and technology innovation center to focus on material and process innovation and realize independent research and development of transformers; relying on the national CNAS certified laboratory, each product passes more than ten rigorous tests such as lightning strike and insulation no-load loss to ensure stable operation in the whole environment.

TSTY Electric Co., Ltd.

Certified Patents

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