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Sediver composite gapless line surge arresters


Sediver composite surge arresters contribute to improve the quality of service of your High Voltage system by eliminating flashovers due to lightning. They are also a safety device that will protect crew, equipment and people in the vicinity.

Sediver proposes a customized line arrester arrangement with connection fittings adapted to your specific tower and insulator string designs.



Features:

  • Lightning performance improvement of transmission lines
  • Reduction of double and multicircuit outages
  • Switching overvoltage control
  • Overvoltage control in the vicinity of high voltage substations
  • Prevention of risk to people and animals
  • Open breaker protection
  • Line design without shield wire: Loss reduction
  • Compact line design
  • Line voltage uprating


Installation:

  • Directly on the insulator string
  • On transmission towers
  • Suspended under phase conductors

Selection:


Using state of the art simulation software tools, our experts are able to determine optimal arresters types & location to protect the key points of the system, thus providing effective protection at the lowest cost.


System voltage

(kV)

SLA.1
44-170

SLA.2
44-245

SLA.3
44-400

Arrester class [IEC 60099.4]

 

1

2

3

Nominal discharge current

(kA)

10

10

10

High amplitude current withstand [4/10 ms]

(kA)

100

100

100

Maximum long duration current impulse

(A)

250

500

800

Maximum short circuit rating

(kA)

40

63

63

Maximum permissible bending moment

(Nm)

700

1350

2500