KYN61-40.5 35kV high voltage switchgear metal-clad removable AC metal enclosed high voltage electrical switchgear
Gengeral
KYN61-40.5 35kV high voltage electrical switchgear metal-clad removable AC metal enclosed switch equipment(following short for switchgears),used in 35kV three-phase AC 50Hz power system, as a power plant, substation and industrial and mining enterprises to accept and distribution of electricity, with control, protection and monitoring, and other functions. In addition to widely used in general power systems, but also can be used in the frequent operation of the site. The use of environmental conditions in line with the normal use of the provisions of the GB3906 environmental conditions.
Model instruction
Major technical parameters
|
Name |
Unit |
Data |
|
|
Rated Voltage |
kV |
40.5 |
|
|
Rated Current |
A |
1250,1600,2000,(2500) |
|
|
1min Power frequency withstand voltage |
kV |
95 |
|
|
rated lightning impulse withstand voltage |
kV |
185 |
|
|
Auxiliary circuit, control circuit Power frequency withstand voltage |
V/1min |
2000 |
|
|
Rated Frequency |
Hz |
50 |
|
|
Rated short circuit breaking current |
kA |
20,25,31.5 |
|
|
Rated short-time tolerant voltage/Rated short circuit duration |
kA/4s |
20,25,31.5 |
|
|
Rated peak Withstand current |
kA |
50,63,80 |
|
|
Rated short-circuit current |
kA |
50,63,80 |
|
|
Control circuit rated voltage |
V |
DC：110 ,220 ;AC：110 ,220 |
|
|
Protection level |
Switchgear enclosure |
IP3X |
|
|
Compartment (door open) |
IP2X |
||
Structure characteristics
The high voltage electrical switchgear equipment is divided into cabinet and handcart two parts.
Cabinet is selection of high-quality cold-rolled steel plate or aluminized zinc plate formed by CNC sheet metal processing equipment bending, by high strength bolts, nuts (8.8 grade) or a pull riveting nut assembly. Members of the cabinet body with plastic sprayed surface galvanizing process. Therefore, the cabinet body not only has the very high accuracy, and with the similar equipment has the advantages of light weight, high mechanical strength, the characteristics of beautiful appearance. Cabinet structure according to the function feature can be divided into compartment of relay instrument, the circuit breaker room, the cable compartment and busbar room four parts, each part to connect to a metal separator separated, and a pressure independent release channel.
Handcart skeleton is bend welding by high-quality steel plate, according to use can be divided into circuit breaker handcart, isolation handcart, voltage transformer handcart and a lightning arrester handcart, with the specifications of the handcart can be interchanged. This switchgear cabinet is landing handcart cabinet.
The protection level of the shell of the switch device is IP3X, the circuit breaker room door is opened, and the protection grade is IP2X when the circuit breaker handcart is in the disconnection / test position.
Schematic diagram of the structure of the switchgear equipment
A. Twice instrument room
B. Handcart room
C. Busbar room
D. Cable room
- Valve
- Circuit breaker handcart
- Twice plug
- The main bus
- Busbar bushing
- Earthing switch
- Contact box
- cable connection
- Current transformer
- Pressure release device
FAQ