説明
1、Product introduction
Versatile Configurations and Crucial Role in Various Sectors：
KYN28-12 facilitates efficient electrical energy acceptance, distribution, and circuit control within 3.6 ~ 12KV power grids. Furthermore, it offers versatile configurations for single or double busbar systems, along with easy maintenance with its handcart circuit breaker. Moreover, widely employed across various sectors including power substations, industrial facilities, hotels, and municipal construction, it assumes a crucial role in controlling, protecting, and monitoring power distribution processes.
2、Types of meaning
3、Working conditions
1）Ambient temperature: -25ºC to +40ºC
2）Altitude: ≤2000m (Please specify if altitude exceeds 2000m when ordering)
3）Relative humidity: ≤95% (+25ºC)
4）Earthquake intensity: ≤8 degrees
5）Installation environment: Located in places without fire hazards, explosion risks, severe pollution, chemical corrosion, and intense vibrations.
4、Product size
| Height B(mm) | 2300 | |
| Width A(mm) | 40KA rated current of small branch bus is up to 1250A, thermal stable current 40KA | 800 |
| the rated current of small branch bus is over 1600A | 100 | |
| Depth C(mm) | cable incoming and out going | 1500 |
| Overhead incoming and out going | 1660 | |
| Wt.(kg) | 700-1200 | |
5、Product structure
A bus compartment
B circuit breaker compartment
C cable compartment
D relay instrument compartment
1.1 pressure-releaf cover
1.2 secondary passage cover
3 bus bushing
4 main bus-bar
5 stationary contact
6 contact’s box
7 ст
8 grounding switch
9 cable
10 zinc-oxide surge arrester
11 grounding bus-bar
12 partition
13 shutter
14 secondary contact block
15 handcart of circuit breaker
16 heate
17 operating hole of handcart
18 operating shaft of grounding switch
19 bottom plate
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