Product Name: metalclad Mv Enclosed Switchgear Kyn28A-12 (RMU or GIS) Model NO.: KYN28A-12 Certification: CCC Certification: ISO9001:2000, IEC62271:200 Shell Material: Steel Plate Structure: Cabinet Structure: Protection Rated Voltage: 12kv, 24kv Rated Current: 630A, 1250A, 1600A Rated Short -Circuit Breaking Current: 20ka, 25ka, 31.5ka Ciucuit Breaker Type: Sf6 Switch, Vacuum Circuit Breaker Form: All- packaged Type Size: 1 Uint Type: Distribution Metering Box Application Range: Substation, Building Operation Voltage: 10-24kv Shell Protection Grade: IP4X Brand: CNC Trademark: CNC, OEM Transport Package: Standard Export Packing Specification: IEC62271: 200 Origin: Zhejiang, China Product Description

 

KYN28A-12(Z) metalclad modular switchgear

 

General
Ratings: system voltage 3.6kV, 7.2KV, 12KV, 24KV,rated current up to 4000A, AC three
phase 50/60HZ.
Application: mainly applicable in the power plant, substation, mineral enterprise
to receive and distribute power with the functions of controlling, protecting and
monitoring. It also can be used in places where the frequently operations are in
need.
Standard: IEC62271-200

 

Working Conditions
1. Ambient air temperature: -15°C~+40°C.
2. Altitude: ≤1000m.
3. Relative humidity : Daily average≤95%, daily averange of vapour pressure≤2.2kpa.
4. Earthquake intensity: ≤magnitude 8.
5. Applicable in the places without corrosive and flammable gas and water vapor.
6. Used in place without frequently intense vibrant.
Note: Customized products are available.

 

Type

 

 Specifications:

Item			Unit	Data
Rated voltage			kv	3.6, 7.2, 12,24KV
Rated frequency			hz	50
Rated current of circuit breaker			A	630, 1250, 1600, 2000, 2500, 3150, 4000
Rated current of switchgear			A	630, 1250, 1600, 2000, 2500, 3150, 4000
Rated short-time withstands current(4s)			ka	16, 20, 25, 31.5, 40, 50
Rated peak withstands current (peak value)			ka	40, 50, 63, 80, 100, 25
Rated short-circuit breaking current			ka	16, 20, 25, 31.5, 40, 50
rated short-circuit making current (peak value)			ka	40, 50, 63, 80, 100, 25
Rated insulation level	1min power frequency withstands voltage	pole to pole, pole to ground	kv	24, 32, 42
		fracture to fracture	kv	24, 32, 48
	lightning withstands voltage(peak)	pole to pole, pole to ground	kv	40, 60, 75
		fracture to fracture	kv	46, 70, 85
Protection degree			Enclosure is IP4X. IP2X when CPT and CB door are open
Note: 1. The short-circuit capacity of current transformer is considered separately.                                                                                                                                                                                                                                                                                                                                                             2. Details of the parameters of ZN 63A-12 as per reference company' s sample.