KYN28A-12 medium voltage main switchboard switchgear
Features
- High protection degree
- Simple breaker replacement
- Good handcart interchangeability
- Less covered area
- High security
Description
KYN28A-12 medium voltage main switchboard switchgear is a new type indoor product self-developed by introducing the technology of ABB and absorbing similar products advantages at home and abroad. The device is middle-set-type -structure, having much higher technique index.
Application
KYN28A-12 medium voltage main switchboard switchgear is applicable for 3.6kV ~ 12kV with three-phase AC 50Hz single bus or single bus sectional system. It is mainly used for substation and distribution system of power plants, substation, industrial and mining enterprises, building hotels, municipal construction and petrochemical sector as power receiving, power distribution and the circuit controlling, protection and monitoring.
Normal operating conditions
- The ambient air temperature : -5°C ~ +40°C;
- Daily average temperature(Within 24h): ≤+35℃
- Altitude:≤1000m;
- Relative humidity: within 24h, daily average value ≤ 95% , daily average vapor pressure≤ 2.2KPa; monthly average value ≤ 90%, monthly average vapor pressure≤ 1.8KPa
- Ambient air is not significantly polluted by dust, smoke, corrosive and / or flammable gas, vapor or salt contamination.
Special operation conditions
If the switchgear will be used in conditions that exceed the normal
environmental conditions, users should consult with the
manufacturer.
Technical Parameter
Item(Unit) | Data |
Rated Voltage(kV) | 3.6~12 |
Rated Current(A) | ≤4000 |
Rated Frequency(Hz) | 50 |
Rated Short-time Power Frequency Withstand Voltage(kV) | 42 |
Rated Lightning Impulse Withstand Voltage (kV) | 75 |
Rated Peak Withstand Current(kA) | ≤100 |
4S Rated Short-time Withstand Current(kA) | ≤40 |
Standard | GB3906 |
Protect Degree | Out Shell IP4X, Cubicle and Door Open IP2X |
