KYN28-12 armored withdrawable enclosed switchgear
Short Description:
■Product OverviewThe KYN28-12 armored withdrawable AC metal-enclosed switchgear is suitable for three-phase AC power systems with a rated voltage of 12kV and a rated frequency of 50Hz. It is used for receiving and distributing electric energy, and for controlling, protecting, and monitoring circuits …
Product details
■Product Overview
The KYN28-12 armored withdrawable AC metal-enclosed switchgear is suitable for three-phase AC power systems with a rated voltage of 12kV and a rated frequency of 50Hz. It is used for receiving and distributing electric energy, and for controlling, protecting, and monitoring circuits.
Compliance Standards:
GB3906-2006 "AC metal-enclosed switchgear and controlgear for rated voltages 3.6kV to 40.5kV"
GB11022-89 "General technical conditions for high-voltage switchgear equipment"
IEC298(1990) "AC metal-enclosed switchgear and controlgear for rated voltages above 1kV and up to and including 50kV"
DL404-97 "Technical conditions for indoor AC high-voltage switchgear cabinets"
■Main Technical Parameters of Vacuum Circuit Breaker
| Item | Unit | Value |
|---|---|---|
| Rated Voltage | kV | 3.6, 7.2, 12 |
| Rated Frequency | Hz | 50 |
| Circuit Breaker Rated Current | A | 630, 1250, 1600, 2000, 2500, 3150 |
| Switchgear Rated Current | A | 630, 1250, 1600, 2000, 2500, 3150 |
| Rated Short-time Withstand Current (4S) | kA | 16, 20, 25, 31.5, 40, 50 |
| Rated Peak Withstand Current (Peak) | kA | 40, 50, 63, 80, 100, 125 |
| Rated Short Circuit Breaking Current | kA | 16, 20, 25, 31.5, 40, 50 |
| Rated Short Circuit Making Current (Peak) | kA | 40, 50, 63, 80, 100, 125 |
| Rated Insulation Level | 1min Power Frequency Withstand Voltage | kV |
| ^ | Lightning Impulse Withstand Voltage | kV |
| Protection Grade | Enclosure IP4X, Compartment, Circuit Breaker Door open IP2X |
Normal Operating Conditions
Ambient Air Temperature: Max +40°C, Min -15°C;
Relative Humidity: Daily average ≤ 95%; Daily average water vapor pressure ≤ 2.2KPa; Monthly average relative humidity ≤ 90%; Monthly average water vapor pressure ≤ 1.8kPa;
Altitude: Below 1000m;
Seismic Intensity: Not exceeding 8 degrees;
Ambient air should be free from corrosive or flammable gases, water vapor, and other significant pollution;
No severe vibration locations;
When used under conditions exceeding the normal conditions specified in GB3906, it shall be negotiated between the user and our company.
