KYN2 8-12
KYN2 8 -12 Series
Metal-Clad Withdrawable Switchgear
7.2~12kV,...4000A,...50kAKYN28-12
KYN28-12 50Hz/7.2~12kV
IEC-60298 GB3906 DL404
KYN28-12 metal-clad withdrawable switchgear is suitable for 3-phase AC 50Hz/7.2~12kV single busbar and single busbar
section system. Apply to distribute electricity power and implement system control, protection, supervision monitoring. The
switchgear comply with the standards IEC298, GB3906, DL404.1
Type and Designation
2
Operating Conditions
3
Characteristic
4
Technical Data
5
Construction
6
Main Components
7
Primary Schemes
8
Installation
9
Ordering Information1
Type and Designation
KYN28 - 12
Metal-clad
Withdrawable
Indoor Scheme No.
No. of Design Rated voltage
2
Operating Conditions
40 10 Ambient temperature:max.to +40 min.to -10
1000m Altitude:1000m(max).
95 90 Relative humidity:daily average less than 95%, monthly
8 less than 90%.
Shock of earthquake:less than 8 magnitude.
This product should not be used under conditions of fire,
explosion, earthquake and chemical corrosion
environments.
Note:Special condition and requirement, consult with the
manufacturer.
3
Characteristic
Metal-cald and partition completely, efectively pre-
vent faults spreading.
IP4X The low voltage section is completely separated
from the high voltage sections.
Enclosure protection degree is IP4X, protect against
electric shock and ingress of solid foreign bodies.
Simple but effective interlocking prevents
maloperation.
Space is provided for multiple cable connections.
Installation and maintenance is convenient.
Withdrawble part of the same design are mutually
interchangeable, an exchange of VCB is very
simple.
14
Technical Data
Technical data
Data
F-C
Unit VCB switchgear F-C switchgear
Rated voltage kV 7.2 12 7.2 12
1min Rated power-frequency withstand voltage (1min) kV 32 42 32 42
Rated lightning impulse withstand voltage kV 60 75 60 75
Rated frequency Hz 50 50
Main busbar rated current A ...4000 ...4000
Branchal busbar rated current A ...4000* ...400
4 Rated short-time withstand current (rms),4s kA ...40 4kA/4s
Rated peak withstand current (peak) kA ...100 10
Enclosure protection level IP4X IP4X
3150A
Enforced cooling is necessary when the current is over and including 3150A of VCB
Rated short-time withstand current and rated peak withstand current of current transformers are relate to rated transformers
are relate to rated transformation ratio, affirm when ordering.
Outline dimensions & weight
Height 2200mm
800.(650*) mm
1000 mm
1350 mm
Depth
1500/1560 mm
F-C switchgear
650 x 2200 x 1560mm
( )
Weight 800~1200kg
VD4 Suitable for VD4 being equiped.
25
Construction
The basic structure of the switchgear panel comprises
the panle itself and withdrawable part.
The panel is constructed by bolting together.Enclosure
and internal partition are of anticorrosive steel sheets.
The panel consists of four separate compartments, that is
truck compartment, busbar compartment, cable
compartment, low-voltage maintenance type, double-face
maintenance type. Withdrawable part can be classified

KYN28-12系列金属铠装移开式开关设备是一种常见的高压开关柜产品，由瑞士施耐德（Schneider）公司推出并被广泛应用于35kV及以下电力系统中。它采用高质量的金属铠装结构设计，具有良好的防护性能和抗电磁干扰能力，确保操作人员的人身安全以及电网设备的正常运行。 该系列产品的主要特点包括： 1. **金属铠装外壳**：全封闭、金属屏蔽，具备优良的防尘、防潮、防腐蚀性能，提高了开关柜在恶劣环境下的使用稳定性。 2. **移开式设计**：开关柜可通过将母线室与断路器室分离开来实现独立的操作，便于检修维护和扩建工作，同时也方便了设备的运输和安装。 3. **集成化功能**：配置有高压断路器、负荷开关、隔离开关、接地开关等核心元件，以及相关的保护装置如过电流保护、零序保护、短路速断保护等，满足多种电力系统需求。 4. **安全性高**：采用了五防联锁机制，有效防止误操作带来的安全隐患，保证了人身安全和电网设备的安全运行。 总之，KYN28-12系列金属铠装移开式开关设备凭借其技术先进、可靠性高、操作简便等特点，在高压电力系统中得到了广泛应用，并成为国内外主流高压开关柜产品之一。