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Karasay District, 50 Tsentralnaya St.

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KRU KEP 24/1

KRU KEP 24/1

Complete distribution devices of internal installation (KRU)

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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 / DescriptionValue / 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

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