Vacuum switch VBN-27
Single-pole vacuum circuit breaker VBN-27.5 II-25/1600 UHL 1
It is intended for switching of electric circuits at normal and emergency
modes in single-phase alternating current networks for traction substations
electrified railways.
Part number:
Description
TECHNICAL DATA
Rated voltage, kV 27,5
Maximum operating voltage, kV 29
Rated current, А 1600
Rated breaking current, kA 25
Through-current fault, kA
- highest peak 51
- the initial effective value of the periodic
constituting 25
Rated short-time withstand current, kA 25
Time of thermal current flow, C 3
Total tripping time, С, no more than 0,08
Own time, C, not more than:
shutdowns 0.06
inclusions 0.3
Rated voltage of electromagnets (including
and tripping), B:
DC 110,220
Consumed current of electromagnets, A, not more than:
Switching electromagnet:
at a constant voltage of 110 V 5
at a constant voltage of 220 V 2.5
Switching electromagnet:
at a constant voltage of 110 V 100
at a constant voltage of 220 V 50
Resource for mechanical resistance, cycles of VO, not less than 20 000
Resource for switching stability, VO cycles,
not less than 20 000
Weight, kg, no more than 300
Overall dimensions, mm height 2210
width 640
length 66
Rated voltage, kV 27,5
Maximum operating voltage, kV 29
Rated current, А 1600
Rated breaking current, kA 25
Through-current fault, kA
- highest peak 51
- the initial effective value of the periodic
constituting 25
Rated short-time withstand current, kA 25
Time of thermal current flow, C 3
Total tripping time, С, no more than 0,08
Own time, C, not more than:
shutdowns 0.06
inclusions 0.3
Rated voltage of electromagnets (including
and tripping), B:
DC 110,220
Consumed current of electromagnets, A, not more than:
Switching electromagnet:
at a constant voltage of 110 V 5
at a constant voltage of 220 V 2.5
Switching electromagnet:
at a constant voltage of 110 V 100
at a constant voltage of 220 V 50
Resource for mechanical resistance, cycles of VO, not less than 20 000
Resource for switching stability, VO cycles,
not less than 20 000
Weight, kg, no more than 300
Overall dimensions, mm height 2210
width 640
length 66