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Porcelain - Since 1962 we manufacture our reliable porcelain arresters of the SB series, Chống sét Van vỏ sứ Tridelta

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Porcelain - Since 1962 we manufacture our reliable porcelain arresters of the SB series, Chống sét Van vỏ sứ Tridelta

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Porcelain - Since 1962 we manufacture our reliable porcelain arresters of the SB series, Chống sét Van vỏ sứ Tridelta

High Voltage Surge Arrester TRIDELTA

Download Catalogue High Voltage Surge Arrester TRIDELTA

Porcelain

Since 1962 we manufacture our reliable porcelain arresters of the SB series.

Metaloxide varistors with high energy absorption capability and an excellent sealing system ensure a long service life. Depending on the mechanical requirements our SB arresters are available in 3 design types/sizes:

  • size 0 – max. service load 10 kNm
  • size I  – max. service load 23 kNm
  • size II – max. service load 35 kNm

Our Products

Technical Data

Product SB size 0SB size ISB size II
Highest System Voltage Us kV 420 550 800
max. Rated Voltage Ur kV 396 468 612
max. Nominal Discharge Current In (at 8/20 µs waveshape) kA 20 20 20
max. Thermal Energy Absorption Capability kJ per kV of Ur   13 13 13
max. Line Discharge Class   5 5 5
Qrs (accord. IEC 60099-4 Edt. 3.0)   3,6 3,6 4,0
High Current Withstand Strength 4/10 µs kA 100 100 100
max. Low Current Withstand Strength 2 ms A 2.000 2.000 2.000
max. Short Circuit / Pressure Relief Capability kA - 0,2s   65 63 63
Mechanical Strength: Specific short-term load SSL Nm 10.000 23.000 35.000

References

  • 550 kV S/S Rincón Santamaria, Intesar/CFEE Transener, Argentina
  • 420 kV S/S Damavant, Iran - desert climate
  • 420 kV Damman Area, Saudia Arabia - very harsh environment, 40 mm/kV creepage distance
  • 765 kV EDELCA, Venezuela
  • 550 kV Transelec, Chile - severe seismic conditions
  • 550 kV EGAT, Thailand

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Surge Arrester - Chống sét Van Tridelta

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