High-voltage cubicles of YaKNO series
Outdoor YaKNO series high-voltage cubicles of switchgear & control gear are designed to supply power to the electrical equipment of open-mine excavators; they are installed in the branch-off and main networks of opencast mines, in the places of connection to the in-pit overhead power transmission lines of up to 10 kV voltage.
The cubicles have the following standard versions: air-cable; cable-air; air-air; and cable-cable. These differ in wiring method based on the arrangement of main and auxiliary circuits and can be completed with sledges upon a customer’s request.
Key performance specification of YaKNO:
|
Parameter name
|
Value
|
|
Rated (linear) voltage, kV
|
6; 10
|
|
Maximum operating (linear) voltage, kV
|
7.2; 12
|
|
Rated current of the primary circuits of the cubicles, A
|
50, 100, 200, 300, 400, 600
|
|
Rated current of the busbars, A
|
630
|
|
Rated breaking current of the circuit breaker
embedded in the cubicles, kA
|
20
|
|
Short-time electrodynamic current of the primary circuits, kA
|
51
|
|
Insulation according to GOST 1516.1
|
Normal
|
|
Busbar system
|
With one busbar system
|
|
Phase segregation method
|
With non-segregated phases
|
|
Availability of drawout components
|
Without drawout components
|
|
Design of high-voltage leading-in connections
|
input – aerial; output – aerial
|
|
input – cable; output – cable
|
|
|
input – cable; output – aerial
|
|
|
input – aerial; output – cable
|
|
|
Maintenance conditions
|
Bilateral-maintenance cubicles
|
|
Busbar insulation
|
Cubicles with non-insulated busbars
|
|
Environmental protection rating according to GOST 14254-96
|
IP34 design of cubicles
|
|
Design of lead-ins
|
Cubicles with the lead-in design of category 2* as per GOST 9920
|
|
Control method
|
Local; remote
|
|
Vacuum circuit breaker type
|
VVU-SESch-P3-10/20-1000; VVM-SESch-10/20-1000; BB/TEL-10/20-1000
|
|
Vacuum circuit breaker drive
|
Integrated spring-actuated electromagnetic; electromagnetic
|
|
Protection type
|
Relaying; microprocessor-based
|
|
Rated voltage of the auxiliary circuits, V:
|
|
|
1) AC protection and control circuits
|
220
|
|
2) signal circuits
|
24
|
|
3) protection, accounting and metering circuits
|
100
|
|
4) lighting circuits
|
24
|
|
5) heating circuits
|
100
|
|
Overall dimensions (w/o slides), mm:
width x depth x height (considering bushing insulators)
|
1005/900 x 1300 x 3100
|
|
Weight (w/o slides), no more than, kg
|
1100/980
|
|
Ambient temperature, °С
|
from -45° С to +50° С
|
|
Mechanical stress according to the maintenance function
|
М18 as per GOST 17516
|
|
Environment
|
Non-explosive, containing no current-conducting dust
|
|
Altitude above sea level, no more than, m
|
1000
|
Made in accordance with the Technical Specifications TSh 64-17817952-007:2004.