Kyn28A-12 Model Indoor Armored Metal Sealed Movable High Voltage Switchgear

Model NO.: KYN28A-12 High Voltage Switchgear
Outing Structure: Metal-Enclosed Structure or Metal Clad
Components: Switches, Circuit Breakers, Fuses, Light Arrestor
Functions: Protection, Isolation, Electricity Distribution
Warranty Period: One Year
Product Type: OEM or ODM Customized Switchgear Products
Cabinet Parts: Incoming, Outing, Metering, Compensating
Protective Level: IP Level Value According The Applied Environment
Certification 01: GB/T 19001-2008/ISO9001:2008
Certification 02: GB/T 28001-2011/Ohsas18001:2007
Certification 03: GB/T 24001-2004/ISO14001:2004
Trademark: SHENRONG ELECTRIC
Transport Package: Normal Exporting Package
Specification: KYN28A-12 Model Intermediate Sealed Switchgear
Origin: China
HS Code: 8537109090
1. Product name:

    KYN28A-12 Model Indoor Armored Metal Sealed Movable High Voltage Switchgear

2. Product description:

    Based on absorbing domestic and international advanced manufacturing skills, Shenzhen Rongdian Enterprise Co., Ltd has designed and developed a new product KYN28A-12 Model Armored Metal Movable Alternating Sealed Switchgear, which is applied in three-phase electric power system of rated voltage 3-12KV, 50HZ and rated current 630-3150A. Power station use it to finish electricity transmission and substation of power electricity system. Industrial and mining enterprises use it to get and distribute power and realize the goal of control, protection and detection. It can be used to start high voltage electromoter frequently and meet demand of five-prevention chain. The switchgear can be matched VD4 vacuum circuit breaker of ABB company and also can be matched domestic VIS vacuum circuit breaker. It is a kind power distribution equipment of superior performance, having those advantages of flexible combined solution, compact structure, safety reliability, convenient maintainance, impact resistance, corrosion resistance and so on. 

3. Main applications:

    The intermedium switchgear is applied in power distribution equipment of three phase alternative current 50Hz and rated voltage 12kV. It is used widely in cable ring net of processing industry and civil and power supply terminal. And it is specially applied in electricity system of small secondary distribution station, Sub-section post,industrial and mining enterprises,urban residential community,airport,railway,tunnel,high altitude building and so on and it is used as power received and distributed.

4. Performance features:

    KYN28A-12/24 Indoor Metal Armored Movable Switchgear, the cabinet is made by high quality aluminized zinc plate and is shaped by CNC machine processing, fixed by rivets, stable and strong structure; Each functional isolated room is separated and sealed mutually. The protection level of isolated room is IP20 and protection level of shell can reach to IP40. Switchgear is divided into bus line chamber, cable chamber, handcart chamber and instrumentation control chamber; The main breaker is equipped with domestic and international high quality vacuum breaker of VS1, VD4 and other type. It has complete five protection inter-locking, safe and convenient operation and complete display of first and second. It is equipped with comprehensive or separate original parts protection according to design. It can be connected with cable in normal bottom incoming and outcoming at the same time or in top incoming and outcoming according to design. It can be combined multi-functions cabinet of incoming line, measured PT contact, outcoming line and turning. The switch handcart is interchangeable and is checked and maintained more conveniently.

5. Technology Prameters:
Technology Prameters  
Item Parameters
Rated Voltage 6.3  12   24 kV
Rated Current 630  1250  1600  2000  2500 3150 4000 A
Rated Frequency 50  60      Hz
Switchgear Rated Current 630  1250  1600  2000  2500 3150 4000 A
Breaking Rated Current 630  1250  1600  2000  2500 3150 4000 A
Rated short time tolerant current 16  20 25 31.5 40  KA/4S
Rated peak tolerant current 40  50  63  80  100  kA
Rated short circuit breaking current 16  20 25 31.5 40  KA
Rated short circuit closing current 40  50  63  80  100  kA
Rated insulation level power frequency tolerant voltage phase-phase   phase-ground  42kV/1 min Breaking  48kV/1 min
Rated tolerant voltage by lightning impulse phase-phase   phase-ground  42kV/1 min Breaking  48kV/1 min
Breaker service life 10000 times
Protection level Out shell IP4X  isolated room and breaking room door opened IP2X
Ambient temperature and humidity -15ºC-40ºC less than 95% per day    less than 90% per month
Altitude not more than 1000 meters

6. Picture as below: 

    
Kyn28A-12 Model Indoor Armored Metal Sealed Movable High Voltage Switchgear

7. FAQ 
001 Q What is electrical switchgear
A Electrical switchgear is a key component in electrical power systems and is used to both distribute electrical power and to selectively isolate electrical loads.
The switchgear is a switching device comprising of connecting or disconnecting switches, fuses or circuit breakers, protective and controlling devices which can be used to isolate electrical apparatus in faulty condition or during maintenance period, or to connect the same in desired healthy conditions.
002 Q Do we need to monitor the switchgear conditions
A Yes, Because switchgear distributes electrical current, heat build-up becomes an important characteristic to monitor. In particular, unexpected temperature rise at a particular location could indicate corrosion or some other type of defect. Thermal effects are especially visible in medium voltage switch gears used in distribution networks, where electrical currents may rise to few thousands of amperes. Thus keeping switchgears in proper condition over their long life becomes a critical issue.
003 Q What are the main causes of arc flashes in industrial switchgear?
A The main causes of arc flashes in industrial switchgear are: the application of tools to energize switchgear, deteriorated insulation on phase bus bars, and loose 
electrical connections that overheat. These things can be prevented by proper safety measures and regular maintenance.
004 Q What is the lowest voltage at which arc flashes occur?
A 120 volts is generally considered the lowest voltage at which arc flashes occur. The voltage of industrial switchgear can exceed this voltage by hundreds of thousands of 
times.
005 Q What is Metal Enclosed Switchgear?
A Metal Enclosed Switchgear is a switchgear assembly that encloses all necessary equipment and device in separate metal vertical structure (i.e MCCs, PCC), however they 
each metal compartment are not separated from one another by metal barriers. It's used often with low voltage equipment. 
006 Q What is Metal Clad switchgear?
A Metal Clad Switchgear is a switchgear assembly that encloses all necessary equipment and devices in one metal house, but compartments in this assembly is separated from
one another by metal barrier. When metal clad switchgear is used or assumed when MV switchgear is provided.
007 Q Difference between Metal Enclosed Switchgear and metal Clad Switchgear.
A Metal enclosed switchgear: Assembled with separate metal vertical section
Metal Clad Switchgear: Assembled in one metal structure.
MES: each compartment is not separated from one another with metal barrier.
MCS: each compartment is separated from one another with metal barrier.
MES: Frequently used in LV system.
MCS: Frequently used in MV System. When MCS is said MV Switchgear is assumed.
MES: All breakers and other switching devices are fixed type.
MCS: All breakers are withdrawable type.

8.  Order Instrution 
 
Ordering instruction(Armored Movable Alternative Current Metal Sealed Switchgear Equipment)
Please provide those below detailed information, when you order the switchgear.
001 Main connection wire solution serial number and single line system diagram, arrangement and plane layout drawing
002 Main connection line solution serial number, purpose and single line system diagram, rated voltage, rated current, rated short circuit breaking current, distribution electricity chamber plane layout diagram, arrangement diagram of switchgear and so on. 
003 Secondary connection wire diagram, terminals arrangement diagram. If you can't provide terminals arrangement diagram, we will provide the terminals arrangement according to manufacturer's diagram.
004 Requirement of switchgear control,measurement and protection function and requirement of other shutting and automatic device.
005 Model, specificaton, quantity of switchgear equipment's electrical apparatus elements
006 Electrical equipments summary sheet
007 If the interspace of switchgears or incoming line cabinet need bus line bridge to connect, please provide rated load current of bus line bridge. 
008 If you need busbar (busbar between two array cabinets and busbar between wall cabinets), please provide detailed span and high altitude distance.
009 If the switch equipments are used in the special environment conditions, please put forward it when you order the switchgear.
010 When you need other apparatus or exceed attachment supplied equipment list, please put forward model and quantity you need.
011 Other special requirements.

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