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KYN28-12 Metalclad AC Enclosed Switchgear, Withdrawable Type

Selection

Operating conditions

1. Ambient air temperature: -15℃ ~+40℃ . 2. Altitude: ≤1000m. 3. Relative humidity : Daily average≤95%, daily averange of vapour pressure≤2.2kpa. 4. Earthquake intensity: ≤magnitude 8. 5. Applicable in the places without corrosive and flammable gas and water vapor. 6. Used in place without frequently intense vibrant. Note: Customized products are available.

Features

1. The cabinet is made of aluminum-zinc coated sheet processed by CNC equipment, andisassembled by bolts or rivets. The structure is fully assembled. 2. The switchgear has various functions to prevent misoperation, including preventing the load-bearing handcart from moving, preventing the live closing and grounding 3. The switchgear is equipped with high-performance VS1 series medium-voltage AC vacuum circuit breakers and solid-sealed vacuum circuit breakers. 4. The busbar adopts heat-shrinkable insulation materials and optimized electrode shapes, with a compact cabinet structure. This switchgear is technologically advanced, with stable performance, reasonable structure, convenient use, and safe and reliable power distribution equipment

Technical data

No. Item Unit Data
1 Rated voltage kV 3.6, 7.2, 12
2 Rated frequency of circuit breaker Hz 50
3 Rated current of circuit breaker A 630, 1250, 1600, 2000, 2500, 3150, 4000
4 Rated current of switchgear A 630, 1250, 1600, 2000, 2500, 3150, 4000
5 Rated short-time withstand current (4s) kA 16, 20, 25, 31.5, 40, 50
6 Rated withstands current (peak) kA 40, 50, 63, 80, 100, 25
7 Rated short-circuit breaking current kA 16, 20, 25, 31.5, 40, 50
8 Rated short-circuit closing current (peak) kA 40, 50, 63, 80, 100, 25
9 Rated insulation level 1 min power frequency withstands voltage between poles, pole to earth kV 24, 32, 42
between open contacts kV 24, 32, 48
Lightening impulse withstands voltage (peak) between poles, pole to earth kV 40, 60, 75
between open contacts kV 46, 70, 85
10 Protection level Shell: IP4X; IP2X  when the CPT and CB doors are open
Note: 1. The short circuit capacity of the current transformer should be separately considered. 2. See technical parameters of ZN63A-12 in related catalogues of our company.

VS1-12 Technical data

Item Unit Value
Contact distance mm 12
Contact travel 75
Average closing speed (6mm~contact closed) m/s 42
Average opening speed (contact separation -6mm) 20 25 31.5 40
Opening time (rated voltage) m/s 630 1250 630, 1250, 1600, 2000, 2500, 3150 1250, 1600, 2000, 2500, 3150, 4000
Closing time (rated voltage)
Contact closing bounce time m/s 20 25 31.5 40
Three phase opening asynchrony 63 80 100
Allowable cumulative thickness of wear for moving and stationary contacts mm 50 63 80 100
Rated short-circuit breaking current breaking times Times 80 50 30
Secondary circuit power frequency withstand current V 2000
Rated operating sequence Opening -0.3s - closing and opening -180s - closing and opening -180s - closing and opening -180s - closing and opening (40kA
Rated thermal stability time S 4
Rated single/back to back capacitor bank breaking current A 630/400 800/400
Mechanical life Times 20000 10000

Structure

Overall and mounting dimensions (refer to picture 2, sheet 2 )

Shape Description Size(mm)
Width (W) Rated current of branch bus ≤1250A, heat stable current≤40KA 800(650)
Rated current of branch bus ≥1600A 1000
Depth (C) Cable Incoming and outgoing feeder 1500
Overheaded incoming and outgoing feeder 1660
Height (B) 2300(2200)
Outline size

Single line diagram

Program No. 01 02 03 04 05 06
Single line diagram   
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
  main elecrical componets   Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 2 2 2 3 3 3
Earthing switch JN15 / 1 1 / 1 1
Surge arrester HY5W / / 3 / / 3
Circuit name Receiving, feeding Receiving, feeding Receiving, feeding Receiving, feeding Receiving, feeding Receiving, feeding
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 07 08 09 10 11 12
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 2 2 2 2 3 3
Earthing switch JN15 / 1 / 1 / 1
Circuit name Communication (Right) Communication (Right) Communication (Right) Communication (Right) Communication (Right) Communication (Right)
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 13 14 15 16 17 18
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets   Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 3 3 2 2 2 2
Earthing switch JN15 / 1 / 1 / 1
Circuit name Communication (Left) Communication (Left) Overhead incoming  (left communication) Overhead incoming  (left communication) Overhead incoming  (right communication) Overhead incoming  (right communication)
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 19 20 21 22 23 24
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 3 3 2 2 2 2
Earthing switch JN15 / 1 / 1 / 1
Circuit name Overhead incoming  (left communication) Overhead incoming  (left communication) Overhead incoming  (right communication) Overhead incoming  (right communication) Overheaded incoming and outgoing feeder Overheaded incoming and outgoing feeder
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 25 26 27 28 29 30
Single line diagram        
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1660×2300 1000×1660×2300 800×1660×2300 1000×1660×2300 800×1660×2300 1000×1660×2300 800×1660×2300 1000×1660×2300 800×1660×2300 1000×1660×2300 800×1660×2300 1000×1660×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 2 3 3 3 2 2
Potential transformer / / / / JDZ10-10 2 JDZ10-10 2
H.V fuse RN2-10 / / / / 3 3
Earthing switch JN15 1 / 1 1 / 1
Surge arrester HY5W 3 / / 3 / /
Circuit name Overheaded incoming and outgoing feeder Overheaded incoming and outgoing feeder Overheaded incoming and outgoing feeder Overheaded incoming and outgoing feeder Cable incoming+PT Cable incoming+PT
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 31 32 33 34 35 36
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 1 1 1 1 1
CT LZZBJ9 series 2 3 3 3 2 2
Potential transformer JDZ10-10 2 JDZ10-10 2 JDZ10-10 2 JDZ10-10 2 JDZ10-10 3 JDZ10-10 3
H.V fuse RN2-10 3 3 3 3 3 3
Earthing switch JN15 / / 1 / / /
Surge arrester HY5W 3 / / 3 / /
Circuit name Cable incoming+PT Cable incoming+PT Cable incoming+PT Cable incoming+PT Cable incoming+PT Cable incoming+PT
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 37 38 39 40 41 42
Single line diagram        
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) 1 / / / / /
CT LZZBJ9 series 2 / / / / /
Potential transformer JDZ10-10 3 JDZ10-10 2 JDZ10-10 3 JDZ10-10 2 JDZ10-10 3 JDZ10-10 2
H.V fuse RN2-10 3 3 3 3 3 3
Surge arrester HY5W 3 / / 3 3 3
             
Circuit name Cable incoming+PT Voltage  measure Voltage  measure Voltage measure +Surge arrester Voltage measure +Surge arrester Voltage measure +Surge arrester
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 43 44 45 46 47 48
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
Potential transformer JDZ10-10 3 JDZ10-10 2 JDZ10-10 2 JDZ10-10 3 JDZ10-10 3 JDZ10-10 2
H.V fuse RN2-10 3 3 3 3 3 3
Surge arrester HY5W 3 / / / / /
             
Circuit name Voltage measure +Surge arrester Voltage measure +Bus couple Voltage measure +Bus couple Voltage measure +Bus couple Voltage measure +Bus couple Voltage measure+Surge arrester+Bus couple
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 49 50 51 52 53 54
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
Potential transformer JDZ10-10 2 JDZ10-10 3 JDZ10-10 3 / / /
H.V fuse RN2-10 3 3 3 / / /
Surge arrester HY5W 3 3 3 / / /
Circuit name Voltage measure+Surge arrester+Bus couple Voltage measure+Surge arrester+Bus couple Voltage measure+Surge arrester+Bus couple Bus couple Bus couple Disconnection
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 55 56 57 58 59 60
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
Potential transformer / / JDZ10-10 2 JDZ10-10 2 / /
H.V fuse RN2-10 / / 3 3 / /
Earthing switch Jn15 / / / / / 1
Circuit name Disconnection+ Communication(Left) Disconnection+ Communication(Right) Disconnection+ Communication(Left) +Voltage measure Disconnection+ Communication(Right) +Voltage measure Outlet and phase exchange Outlet and phase exchange
Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 61 62 63 64 65 66
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
CT LZZBJ9 series 2 2 3 3 2 2
Potential transformer JDZ10-10 2 JDZ10-10 2 JDZ10-10 2 JDZ10-10 2 JDZ10-10 3 JDZ10-10 3
H.V fuse RN2-10 / / / / / /
Circuit name Measurement+ left communication Measurement+

Right communication

Measurement+ left communication Measurement+

Right communication

Measurement+ left communication Measurement+

Right communication

Note Cabinet weight will be 1000mm when rated current is above 1600A.
 
Program No. 67 68 69 70 71 72
Single line diagram
Overall and mounting dimensions (mm) (Width×Depth×Height) 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300 800×1500×2300 1000×1500×2300
main elecrical componets Rated current(A) 630~3150
VCB(ZN63 or VD4) / / 1 1 / /
CT LZZBJ9 series 3 3 2 2 2 2
Potential transformer JDZX10-10 3 JDZX10-10 2 JDZX10-10 2 JDZX10-10 2 JDZX10-10 2 JDZX10-10 2
H.V fuse RN2-10 3 3 3 3 3 3
Circuit name Measurement+ left communication Measurement+

Right communication

Incoming+   Measurement Incoming+   Measurement Incoming+   Measurement Incoming+   Measurement
Note Cabinet weight will be 1000mm when rated current is above 1600A.

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