Kyn28A-12 MID-Set Type Metal-Clad and Metal-Enclosed Switchgear

KYN28A-12(GZS1-12Z) mid-set type metal-clad and metal-enclosed switchgear (hereinafter referred to as switchgear) is a new type product designed and developed by our company with domestic and international advanced technologies.

Product Details Company Profile

Description

Model NO.: KYN28A-12
Shell Material: Steel Plate
Structure: Cabinet
Trademark: HONLE
Specification: Rated frequency: 50HZ
HS Code: 8504401990

Certification: ISO9001
Installation: Fixed
Current: AC
Transport Package: Standard Export Carton
Origin: Zhejiang, China (Mainland)

KYN28A-12(GZS1-12Z) mid-set type metal-clad and metal-enclosed switchgear (hereinafter referred to as switchgear) is a
new type product designed and developed by our company with domestic and international advanced technologies, it is an
ideal upgrading product for replacing the old metal-enclosed switchgear such as KYN1-10, JYN2-10, GBC-10 and so on. Its
advantages as follows:

The cabinet shell is made of al-zinc-coated steel sheet, through CNC processing and multiple bending technique, then assembled with bolts. It is featured with high mechanical strength, neat and elegant appearance, powder coating treated
door, good shock and corrosion resistance. Ingress protection level of the shell reaches IP4X.

Main switch of switchgear can be configured with VD4 vacuum circuit breaker and C3 series fixed type load switch from ABB corporation, also can be configured with many homemade vacuum circuit breakers (such as VS1, VH1, VK, ZN28) instead of overseas similar products.

No matter which circuit breaker selected, make sure that the air insulation distance of its bare conductor is larger than
125mm, and compound insulation is larger than 60mm. The breakers are featured with long service life, high parameters,
less maintenance, small size, etc.

This switchgear is applicable for three-phase power grid of AC 50Hz and class 3.6~12kV, used for electric energy receiving
and distribution, it controls, protects and monitors the circuits, can be used in single bus and single-bus segment system or
dual-bus systems. This switchgear complies with IEC298 Alternating-current metal-enclosed switchgear and controlgear for
rated voltage above 1kV and up to and including 52kV , IEC694 Common specifications for high-voltage switchgear and controlgear, GB3906 Alternating-current metal-enclosed switchgear for rated voltage of 3~36kV, DL404 Indoor AC high voltage switchgear panel, DIN.VDE0670 Alternating-current switchgear for rated voltage above 1kV, etc. It enjoys perfect and reliable anti-misoperation function.

Technical parameters of switchgear

Item		Unit	Data
Rated voltage Rated frequency Rated current of circuit breaker Rated current of switchgear Rated peak withstand current (4s) Rated peak withstand current (peak) Rated short-circuit breaking current Rated short-circuit making current (peak)		KV Hz A A KA KA KA KA	3.6,7.2,12 50 630,1250,1600,2000,2500,3150,4000 630,1250,1600,2000,2500,3150,4000 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160
Rated insulation level	1min power frequency withstand voltage Lightning impulse withstand voltage	KV KV	24 40	32 60	42 75
Protection class		The shell is IP4X, and it is IP2X when the compartment door and circuit breaker chamber door are opened

Technical parameters of VD4 and VS1-12 vacuum circuit breaker

Item		Unit	Data
Rated voltage Rated frequency Rated current of circuit breaker Rated peak withstand current (4s) Rated peak withstand current (peak) Rated short-circuit breaking current Rated short-circuit making current (peak)		KV Hz A A KA KA KA KA	3.6,7.2,12 50 630,1250,1600,2000,2500,3150,4000 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160
Rated insulation level	1min power frequency withstand	KV KV	42 75
Rated operating sequence Rated short-circuit current breaking times Mechanical life		Times Times	O-0.3s-CO-180s-CO 50 2000

Mechanical characteristics of VD4 and VS1-12 vacuum circuit breaker
When the circuit breaker is used to control the motor of 3~10kV, must apply metal-oxide arrester if the starting current is smaller than 600A, details should be determined by both users and manufacturer through negotiation. When the circuit breaker is used to disconnect the capacitor bank, rated current of the capacitor bank should not exceed 80% of rated current of circuit breaker.

Item		Unit	Data
Clearance between open contacts Overtravel Phase-to-phase central distance Closing contact bounce time Three-phase opening asynchrony		mm mm mm ms ms	11±1 4±0.5 210±0.5,250±0.5,275±0.5 ≤2 ≤2
Breaking time at operating voltage of	Max Rating Min	ms ms	≤50 ≤50 ≤60
Closing time Average closing speed Average closing speed Conductive circuit resistance Contact pressure		ms m/s m/s μΩ N	≤100 0.9-1.2 0.6-0.8 ≤40 3200±100

Technical parameters of operating mechanism

Item		Unit	Value
Rated operating voltage	Closing coil	V	DC220,110
Rated operating voltage	Closing coil	V	DC220,110
Coil power	Closing coil	W	245
Coil power	Closing coil	W	245
Power of energy-storage motor Rated voltage of energy-storage motor Energy-storage time		W V S	50 DC220,110 ≤10

Main technical parameters of ZN-12 (VHI) vacuum circuit breaker

Item	Unit	Parameter
Rated voltage Rated frequency Rated current Rated short-circuit breaking current Rated short-circuit making current Rated peak withstand current Rated short-time withstand current Rated short-circuit duration Rated breaking current of single capacitor bank Rated breaking current of back-to-back capacitor bank Power frequency withstand voltage Lightning impulse withstand voltage Rated short-circuit current breaking times Mechanical life	KV Hz A KA KA KA KA s A A KV KV Times Times	12 50 1250 31.5 80 80 31.5 4 630 400 42 75 50 1000
Rated operating sequence		O-0.3S-CO-180s-CO
Opening time Closing time Control voltage Power of closing coil Power of opening coil	ms ms V VA VA