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Complete switchgear unit of KRU KEP 24/1 series
Single-sided service assembled chambers of the KRU KER 24/1 series for a rated voltage of 6 and 10 kV three-phase AC at 50 Hz are designed for switchgear with isolated or arc-suppression reactor grounded neutral.
KSO chambers have a number of advantages:
- ncreased operational reliability due to the use of modern high-voltage vacuum circuit breakers with high mechanical and switching endurance;
- capability of implementing relay protection using multifunctional, compact, highly reliable microprocessor units from leading global manufacturers;
- enhanced operational safety due to the use of more reliable interlocks of high-voltage switching devices against erroneous actions of substation personnel during switching and repair operations.
- KSO chambers with vacuum circuit breakers are used in indoor switchgears and electrical installations with frequent switching operations.
Advantages:
- increased operational reliability and safety;
- reduced overall dimensions;
- enhanced operational safety due to the use of more reliable interlocks against erroneous actions of substation personnel during switching and repair operations;
Complete switchgear cabinets of the KRU series comply with the requirements of interstate standards GOST 12.2.007.0, GOST 12.2.007.4, GOST R55190.
Technical specifications of KSO chambers |
|
| Parameter / Description | Value / Rating |
|---|---|
| Rated operating voltage, kV | 7,2; 12; 17,5; 24 |
| Rated busbar current, A | 630; 800; 1250 |
| Rated busbar current, A | up to 1250 |
| Thermal withstand current for 3 sec duration, kA | up to 21 |
| Rated electrodynamic withstand current of main circuits, kA | up to 65 |
| Filling pressure for SF6 insulated tank (pressure values at 20 °C), kPa | 120 |
| Ambient air temperature T, °C | -5 - +55 |
| Protection level: - for gas-filled tanks - for enclosure sealing - for low-voltage compartment |
IP65 IP2X/IP3X IP3X/IP4X |