KYN28-12 switchgear,switch cabinet,switchboard,high voltage panel

I Product type of high voltage switchgear

KYN28-12

II General

KYN28-12 switchgear/switch cabinet/switchboard/high voltage panel is a set of power distribution device of rated voltage 3 to 12KV three-phase AC 50Hz of single bus bar and single bus bar segmental system. It is applicable to power transmission of the power plant, power receiving and distribution of the electric system and the substation of the industrial enterprises to fulfill the aims of control, protection and inspection.

III Use condition of high voltage switchgear

Environment temperature: -15°C to +40°C Relative humidity: daily average ≤95% monthly average≤90% Height above sea level: ≤1000m Earthquake magnitude ≤8 No fire, explosion danger, serious pollution, or chemical erosion occasion.

III Main characteristics of high voltage switchgear

The structure of the cabinet is bolt by aluminum zinc alloy board after the process of CNC machine tool and multi bending technology; All the operation can be done after the cabinet door is closed; High protection degree, protect the intruder of sundries and pests; Simple and effective “five-prevention” lock function, protect error operation; Can adopt VS1 and CD4 vacuum circuit breaker; Easy replacement of the circuit breaker and free exchange of the drawers; The cabinet can be installed by the wall, maintenance in the front, which reduces the floor space; Large space of the cable room can connect many cables; The relay room and the cable room can respectively add a heater to avoid freezing or erosion.

IV Major technical parameters

Major technical parameters of vacuum switchgear

No.	Name		Unit	Data
1	Rated Voltage		KV	3,6,10
2	Rated Current		A	630,1000,1250,1600, 2000,2500,3150
3	Rated Frequency		Hz	50
4	Rated short-time tolerant voltage		kA	20, 25, 31.5, 40
5	Rated peak tolerant voltage		kA	50, 63, 80, 100
6	Rated power frequency tolerant voltage	Inter-polar /polar to ground	kV	42/1min
		Inter-fracture	kV	48/1min
7	Rated lightening shock tolerant voltage	Inter-polar /polar to ground	kV	75
		Inter-fracture	kV	85
8	Rated lasting time of short-circuit		s	4
9	Protection degree			Shell IP4X, interval room IP2X

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