KYN28-12 (Z) (GZS1) AC Metal-Clad Withdrawable Switchgear

• Certification: VDE, CCC, ISO9001
• Shell Material: Aluminum-Zinc Coated Steel Sheet
• Voltage Level: High Voltage
• Installation: Fixed
• Structure: Withdrawable
• Current: AC
• Model NO.: KYN28-12(Z)(GZS1)
• Transport Package: Non-Solid Wooden Box Packed
• Trademark: Longxiang
• Origin: Baoji, Shaanxi China
• HS Code: 85352100
• Production Capacity: 10000sets/Year

Product Description

KYN28-12(Z)(GZS1) AC metal-clad withdrawable switchgear


General description
KYN28(GZS1) type moveable metal-clad switchgear is three-phase A.C 50Hz indoor distribution equipment with voltage of 3.6~12kV.
It is used for power plant to transmit power and used for electricity system, industrial and mineral enterprise to receive and distribute power
as well as to control high voltage generator which is frequently started.

It can meet the standard requirements of GB3906, DL404, IEC-298 etc. And it has the function of preventing wrong operation for circuit breakers,
preventing move truck with load, preventing opening(closing)earthing switch with charged, preventing earthing switch transmitting power in earthing
position and preventing entering into live compartment.


Applying ambient conditions
Ambient temperature:The max temperature should be +40ºC, the min temperature should be -15ºC.
The height above sealevel: ≤1000m.
Relative humidity:daily average relative humidity≤95%,monthly average relative humidity≤90%
Earthquake intensity:not exceed 8 degrees
Saturated vapour pressure:daily average value≤2.2kPa,monthly average value≤1.8kPa
It should be used in the place where it is free from fire, explosion, serious filth, chemical erosion and violent vibration.


Main characteristics
The enclosure is made of aluminum-zinc coated sheet processed by bending several times.
All operations should be done under the door closed.
The high protection degree can avoid in gression of substance or insectsenter.
Wrong operation can be avoided due to its simple and effective"FIVE PROVENTION".
Shaanxi Longxiang can be matched with the production of the VIB series or VS1 series vacuum circuit breaker.
For the truck has good interchangeability, it is easy to change vacuum circuit breakers.
For saving space, the switchgear can be installed against the wall and maintained from the front side.
There are enough space for cables.
Instant earthing switch can be used for earthing operation and short circuiting operation.
It can be separately equipped with heater inside the VCB compartment and cable compartment to prevent condensation and erosion.
It conforms to GB3906, DL404 and references to the international stand and IEC-298.


The main technical specification of the cubical switchboard

No.	Name		Unit	Data
1	Rated voltage		kV	3.6 7.2 12
2	Rated current		A	630 1250 1600 2000 2500 3150 4000
3	rated frequency		Hz	50
4	rated short-time withstand current		kA	16 20 25 31.5 40 50
5	rated peak  withstand current			40 50 63 80 100 125
6	rated power frequency withstand voltage	pole to pole pole to earth	kV	42/1min
		across  interrupter		48/1 min
7	rated lighting impluse withstand voltage	pole to pole pole to earth		75
		across  interrupter		85
8	rated short-timeduration		s	4
9	degree of protection			IP4X

Main technical specification of vacuum breaker 

No.	Name		Unit	Data
1	Rated voltage		kV	3.6  7.2   12
2	Rated current		A	630 1250 1600 2000 3150 4000
3	rated short circuit breaking current		kA	16 20 25 31.5 40 50
4	rated short-time withstand current		kA	16 20 25 31.5 40 50
5	rated peak  withstand current			40 50 63 80 100 125
6	rated power frequency withstand voltage	pole to pole pole to earth	kV	42/1 min
		across  interrupter		48/1 min
7	rated lighting impluse withstand voltage	pole to pole pole to earth		75
		across  interrupter		85
8	rated short-timeduration		s	s
9	opening time		ms	20<=t<=65
10	closing time		ms	20<=t<=75
11	breaking operations of rated short circuit breaking current		cycles	30(<=31.5kA)	20(>=40kA)
12	mechanical endurance		cycles	20000(<=31.5kA)	10000(>=40kA)

Main technical specification operation mechanism 

Name		Unit	Data
rated operation voltage	closing coil	V	DC220,110
	opening coil		AC220,110
power of coil	closing coil	WorVA	245
	opening coil
power of energy-stored motor		W	50
rated voltage of energy-stored motor		V	DC220,110    AC220,110
charging time		s	<=10

Fig,1: Construction drawing for switchgear 



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