KYN28A-12 armored transfer type AC metal closed switch equipment is a three-phase AC rated voltage 12kV, rated frequency 50HZ complete set of distribution equipment. It is mainly used in the transformation of power plants, substations, industrial and mining enterprises and high-rise buildings as a way to receive and distribute electric energy, so as to control, protect and monitor.
This switchgear meets the standards of GB3906, GB11022 and IEC298 (1009).
◇Main features:
The switchgear is made up of two parts, the cabinet and the removable parts. The appearance is flat, simple and beautiful. It has a simple and reliable "five guard" interlocking function, which prevents misoperation.
The two line grooves in high pressure indoor use all metal protection, and the operation is safer and more reliable.
The heater can be installed separately in the circuit breaker room and the cable room to prevent condensation and corrosion.
All devices are properly equipped with the same place for inspection.
When a substation is designed to form a complete set of equipment with various functions, it needs less space and can be applied to any premises inside and outside the house.
According to customer needs, it is easy to fit the structure, and easy to install and locate in any floor.
The charged part is properly insulated, and all the components are installed in the metal box, which is very safe for the personnel or equipment. When using a complete set of substations, the high voltage circuit is easy to penetrate into the load center and reduce the power loss, and the voltage can be improved.
◇Technical parameters:
|
Serial number
|
Name
|
Company
|
numerical value
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated current
|
A
|
630 1250
1600 2000 2500 3150 4000
|
|
3
|
Rated frequency
|
Hz
|
50
|
|
4
|
1min power frequency tolerance voltage phase, relative ground
|
kV
|
42
|
|
5
|
1min power frequency tolerance voltage isolation (fracture)
|
kV
|
48
|
|
6
|
Lightning impulse tolerance voltage peak
Interphase, relative
|
kV
|
75
|
|
7
|
Lightning impulse tolerance voltage peak
(fracture)
|
kV
|
85
|
|
8
|
The main busbar rated current
|
A
|
630 1250
1600 2000 2500 3150 4000
|
|
9
|
Branch bus rated current
|
A
|
630 1250
1600 2000 2500 3150 4000
|
|
10
|
Rated short circuit breaking current
|
kA
|
20 25
31.5 40
|
|
11
|
Rated short-time tolerance current / rated short duration
|
kA/4S
|
20 25
31.5 40
|
|
12
|
Rated peak tolerance current
|
kA
|
50 63
80 100
|
|
13
|
Rated short-circuit closing current
|
kA
|
50 63
80 100
|
|
14
|
1min auxiliary circuit power frequency tolerance voltage
|
V
|
2000
|
|
15
|
Protection grade
|
|
IP4X (open door opening of circuit breaker or IP2X between compartments)
|
◇Product size:
|
nucha
|
width（mm）
|
height（mm）
|
depth（mm）
|
|
KYN28A-12
|
650、800、1000
|
2320
|
1510、1670、1810
|