Autoself(TM) Time Voltage Sectionalizer TVS is built of the OVX’s high performance outdoor vacuum circuit breaker module and high speed TVX electronic sectionalizer module. The AutoSelf functionality is built on a auto-reclosing cycle count, lockout function and simple time‐voltage logic including multiple timers. It can be operated manually via push buttons and a rotate switch.

Hughes Power System Time Voltage Sectionalizer
  • Non-enclosed switch for extra safety
  • Integrated air break switch for personal safety
  • Operation On and Off with full load without electric power
  • Follows the feeding substations reclosing sequence
  • Easy installation
  • Frame of "Marine grade" premium stainless steel


Hughes Power System Time Voltage Sectionalizer


Description TVS380
Rated maximum voltage 38/40 kV
Rated basic impulse level, P>P 185 kV
Rated basic impulse level, P>E 170 kV
Power frequency withstand 50/60Hz, Dry 1min 70 kV
Power frequency withstand, Wet 10 sec 60 kV
Description 38 KV
Rated continuous current 1200 A
Rated fault making current 42 kA
Rated fault breaking current 16 kA
Rated fault duration time 3 s
Line charging current 5A
Cable charging current 40 A
Contact resistance, VCB < 40 µΩ
Network frequency 50/60 Hz
Design min mechanical/electrical 15.000
Mass (weight) - kg (lbs) 155 (342)
Ambient temperature C (F) -45 - +70
Humidity 100% at 25 C
Bushing type Hydrophobic Cycloaliphatic Epoxy (HCEP)
Creep distance to group 1310 mm
Phase to phase distance 450 mm
Max installation altitude at rated BIL 3000 M
Rated operation voltage 24-48-110 VDC
Rated power 40 W
Design specification IEC 62271-100
Marking specification IEEE std C37.60
Operation sequence, no charge 25 ms trip - 50 ms close - 25 ms trip

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