Quick Details
Description
- Place of Origin: China (Mainland)
- Brand Name: Galaxy Switch
- Model Number: KYN28-24
- Rated voltage: 24kV
- Ambient temperature: -15℃~+40℃
1.Metal-clad, withdrawable type
2.IEC & GB standards
3. XIHARI type test certificate
General Description
Indoor Metal-clad Withdrawable Switchgear (hereinafter referred to as switchgear) is a high-voltage distribution device used for distribution power system at three-phase AC 24kV, 50Hz . It can be used with the vacuum circuit breaker with embedded poles manufactured by our company.
Service Condition
a. Ambient Temperature:
Max. +40°C
Min. -25°C
b. Ambient Humidity:
Daily average relative humidity:≤95%
Monthly average relative humidity:≤90%
c. Max. altitude:1000m
d. The degree of condensation and pollution Ⅱ
In case of the switchgear used in the conditions beyond the above limit, the customers shall consult with the manufacturer.
Main Technical Data
|
No.
|
Description
|
Unit
|
Parameter
|
|
1
|
Rated voltage
|
kV
|
24
|
|
2
|
Rated current
|
A
|
630,1250,1600,2000,2500
|
|
3
|
Rated frequency
|
Hz
|
50
|
|
4
|
Rated current of main busbar
|
A
|
630,1250,1600,2000,2500
|
|
5
|
Rated short-time power frequency withstand voltage (1min)
|
Phase to phase/earth
|
kV
|
50
|
|
Across the isolating distance
|
65
|
|
6
|
Rated lightning impulse withstand voltage
|
Phase to phase/earth
|
kV
|
125
|
|
Across the isolating distance
|
145
|
|
7
|
Rated short-circuit breaking current (effective value)
|
kA
|
25,31.5
|
|
8
|
Rated short-circuit making current (peak)
|
kA
|
63,80
|
|
9
|
Rated dynamic current (peak)
|
kA
|
63,80
|
|
10
|
Rated thermal current (effective value)
|
kA
|
25,31.5
|
|
11
|
Duration of rated short-circuit thermal stability current
|
S
|
4
|
|
12
|
Arc current
|
kA
|
31.5
|
|
13
|
Arcing time
|
S
|
1
|
|
14
|
Degree of protection
|
|
IP4X for enclosure, IP2X for partition between compartments
|
Construction
This switchgear consists of cubicle and withdrawable component (handcart), current transformer, earthing switch, lightning arrester and so on. The frame and shutters between function compartments are assembled with cooled rolling steel sheets or aluminum-coated and zinc-planted steel sheet.
Beihai Galaxy Switch Devices Co., Ltd. (Galaxy Switch for short) is a subsidiary company of Guizhou Changzheng Tiancheng Holding Co., Ltd. and also a shareholding company of Guangxi Yinhe Decom Electric Co., Ltd. (GYDEC for short). Our company used to be a Sino-Germany joint venture and has been specialized in manufacturing VYG series embedded pole VCBs (rated voltage up to 40.5kV), GLX24 series SF6 insulated ring main units (rated voltage up to 24kV), SLX24 series solid insulated ring main units, OSIS series solid insulated switchgear and KYN28 series metal-clad withdrawable switchgear.
With the strong research and development capability, the most advanced production and testing facilities, rational management ideas and a perfect quality assurance system, Galaxy Switch is the biggest manufacturer of HV VCBs and RMUs in Guangxi, providing the best products for domestic and overseas markets. Our business network covers nationwide areas and our products are exported to Europe, Middle East, Africa, South and Southeast Asia, South America, Australia, etc.
