Medium Voltage > Surge Arresters
MV Arrester MSAIZ 7-11 MV Arrester MSAIZ 7-11-b
MSAIZ- 3 – 45 BD O
Protection of Transformers and cable-end termlnations, Other medium voltage equipment
Protection from Lighining, switching overvoltage
Applilltion for AC, Outdoor and indoor
Selection of type MSAIZ Series
- The selection of the rated and the continuous operating voltage of the arresters is depending on the neutral performance of the networks Design
- Zinc Oxide Surge Arrester without spark gaps. Direct moulded silicone housing,grey color. Designed and tested according to the latest lEC 60099‐4
Electrical characteristics:
- Nominal discharge current 8ノ20 μs(ln) : 10kA
- High currentimpulse withstand 4/10 μs : 100kA
- Long duration rectangular current withstand 2 ms : 2kA
- Energy absortion capability : 4.4(Uc)/3.6(Ur) kJ/kV
- Utov factor (Ttov/Uc) at 1 sec, Preloaded with 1x100kA, 4/10 µs : 1,38
- Rated short circuit current : 20 kA
- Ohmic component of leakage current at Uc and 20°C : < 0.1 mA
- Partial discharge under l.05 Uc : < 10 pC
- Rated frequency : 15 – 62 Hz
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