China Electrical Power Transformer manufacturer

50Hz Frequency Switch Cabinet 630A/1250A Rated Current For Power System ISO9001

Product Details:
Place of Origin: China
Model Number: KYN28-12
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 200-20000/piece
Packaging Details: wooden case
Delivery Time: 30 days
Payment Terms: LC T/T
Supply Ability: 5000 piece/year
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Detail Information

Model Number: KYN28A-12 Frequency: 50Hz
Rated Current:: 630A/1250A Standard: IEC298
Rated Voltage: 12kV Certificate: ISO9001-2008
High Light:

switchgear control panel


metal clad switchgear

Product Description


KYN28-12 Metal-clad Withdrawable Enclosed switchgear power cubicles

distribution switchboard air insulated type switchge

 Product overview

KYN28 indoor metal-clad withdrawable switchgear(hereinafter short as switchgear) which is

for distributing and accepting 3-phase AC electricity (3-12 kV, 50 Hz) distribution system,

single-bus and single-bus sectionalized system. It is universally applied within power

transmission of middle/small generators in power plants; power receiving, transmission for

substations in power distribution and power system of factories, mines and enterprises, and

starting of large high-voltage motor, etc. The switchgear compliant with IEC298,GB3906-9.

Besides, it also can control, protect and monitor the circuit.
Simple and effective lock system to prevent misuse. Reliable FIVE-PREVENTION interlock

can effectively prevent from mal-operation and entrance into energized compartments.
1, Prevent pushing and pulling circuit breaker handcart with loads;

2, Prevent circuit breakers from mal-operation;

3, Prevent the circuit breaker from closing and connecting when earth switch in live condition;

4, Prevent straying into electrified compartment;

5, prevent connecting error of grounding switch while live.


Item Unit Parameters
Ratedvoltage KV 3,7.2,12
Ratedcurrent   630,1250,16002500,3150,4000*
Ratedshortcircuitbreakingcurrent KA 25,31.5,40
Ratedshortcircuitswitchingcurrent 63,80,100
Ratedshort-yimewithstandcurrent(4s) 25,31.5,40
Ratedpeakwithstandcurrent 63,80,100
Ratedfrequency Hz 50
Ratedinsulationlevel 1minpowerfrequencywithstandvoltage KV 42
Lightingimpulsewithstandvoltage 75
controlcircuitvoltages AC V 110,220,380
DC V 110,220


50Hz Frequency Switch Cabinet 630A/1250A Rated Current For Power System ISO9001 0

1. The structure of the cabinet is assembled, and the circuit breaker adopts a handcart floor type structure;

2. Optional: the joint design of vacuum circuit breaker (ZN85-40.5/3AV3), Xiamen Huadian pole sealed vacuum

circuit breaker (VEP-40.5), AREVA SF6 circuit breaker (FP4025D), Schneider SF6 (SF2), circuit breaker with

circuit breaker with interchangeability, easy replacement, convenient.

3. The handcart frame is provided with a screw rod, a nut propelling mechanism, an overrunning clutch, and the

handcart can be easily moved, and the propulsion mechanism can be prevented from being damaged by misoperation.

4. The interlock of the main switch, the handcart and the door of the switch adopts the forced mechanical locking

mode to meet the "five safety" interlocking function;

5. Fast earthing switch is used for circuit short connection and earthing;


The switchgear cabinet is designed according to the standard of metal clad enclosed switchgear in GB3906 and IEC298.

Overall the cabinet and take part (CART) is composed of two parts, the body structure adopts aluminum zinc coated sheet

or galvanized plate bolted composite molding, metal plate isolation switch internal separation for the circuit breaker room,

main bus chamber, a cable chamber and the relay control room, and all the metal parts are reliable grounding cabinet

main loop system of each isolation are independent of pressure release channel in the indoor cable can set 10*60mm2

grounding bus.


50Hz Frequency Switch Cabinet 630A/1250A Rated Current For Power System ISO9001 1


Company profile


Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the large-scale electric

complete sets of manufacturers in China, specializing in oil-immersed transformers, dry-type

transformers, high-voltage Cabinets, low-voltage cabinets and substation manufacturing specialized

electrical enterprises. The company is located in the beautiful coastal city of china-qingdao.

The company has a registered capital of 10 million yuan, 20 senior technical personnel, more than

500 employees, and a sound sales and service system, annual output value of US $1 billion, the

products sell well at home and abroad.


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