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KYN28A-12
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KYN28A-12 Switchgear

Indoor AC armoured metal closure switch cabinet




1.General  Description:

 

KYN28-12 switchgear (indoor AC armoured metal closure switch cabinet) is a set of power distribution device of rated voltage 3.6 to 12kV three-phase AC 50/60Hz 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.It accords with IEC298,IEC694,GB3906,DL404 and DIN.VDE0670.

2.Working condition:

 

1.Ambient temperature;-10----+40

2.Relative humidity:daily average ≤95%,monthly average ≤90%

3.Seismic intensity ≤8

4.Altitude:≤1000m;(Not including special requirement

5.Service environmentshould be avoided fire, explosion risk, serious       pollution, chemical corrosion and violent vibration

Uses should discuss with supplier if working condition exceed above range.

 

3.Technical data

 

 

 

Item

Unit

Data

Rated   voltage

kV

3,6,7.2,12

Rated frequency

Hz

50

Rated current

A

630,1250,1600,2000,2500,3150,4000

Rated short   time withstand current(4S)

kA

20,25,31.5,40,50

Rated withstand   current(peak)

kA

50,63,80,100,125

Rated short circuit   breaking current

kA

20,25,31.5,40,50

Rated short   circuit making current(peak)

kA

50,63,80,100,125

Rated   insulation levels

Rated power   frequency withstand voltage/1min

kV

42

Rated lighting   impulse withstand voltage

kV

75

Level of   protection0

Shell IP4X,(IP2X   after opening door of insulating room& circuit breaker room)

 

 

 

4.Overall drawing




Height   B


2300

(2200)

 Width A

Rated   current of sub-busbar is reached 1250A and Rated short time withstand current reached   40KA

800

Rated current of sub-busbar is reached   1600A and above

1000

Depth   C

Cable   inlet&outlet line

1500

Overhead   inlet&outlet line

1660



 




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