KYN28-12 High Voltage Indoor Switchgear

KYN28-12 High Voltage Indoor Switchgear KYN28A-12 is a relatively common type of high-voltage switchgear, its full name is: indoor metal armored removable switchgear. Its rated voltage is 3.6kV~12kV, and its characteristic is that the equipped vacuum circuit breaker is in the middle of the...

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Description

KYN28-12 High Voltage Indoor Switchgear

KYN28A-12 is a relatively common type of high-voltage switchgear, its full name is: indoor metal armored removable switchgear.

Its rated voltage is 3.6kV~12kV, and its characteristic is that the equipped vacuum circuit breaker is in the middle of the switch cabinet, that is, the circuit breaker is located in the middle of the front cabinet of the switchgear, so the lower space can be saved for the expansion of other schemes or used as a cable room.

Normal use conditions

1. Ambient air temperature: upper limit +40℃, lower limit -10℃;

2. Relative humidity: daily average is not more than 95%, monthly average is not more than 90%;

3. Altitude: not more than 1000m;

4. The earthquake intensity does not exceed 8 degrees;

5. There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration occasions.

When the use conditions exceed the above range, the user should negotiate with our company to determine the allowable range and technical measures.

Technical parameters of switchgear

Item		Unit	Data
Rated voltage		kV	3，6，7.2，12
Rated frequency		Hz	50
Circuit breaker rated current		A	630，1250，1600，2000，2500，3150
Rated current of switchgear		A	630，1250，1600，2000，2500，3150
Rated dynamic stability current (4S)		kA	16，20，25，31.5，40，50
Rated dynamic stability current (peak value)		kA	40，50，63，80，100，125
Rated short-circuit breaking current		kA	16，20，25，31.5，40，50
Rated short-circuit making current (peak value)		kA	40，50，63，80，100，125
Rated insulation level	1min power frequency withstand voltage	kV	24	32	42
	Lightning impulse withstand voltage	kV	40	60	75
Protection level		The shell is IP4X, the isolation room, the circuit breaker room door is IP2X when the door is opened