ABB Surge arresters with metal oxide resistors without spark gaps (MO surge arresters), direct molded silicone housing, grey color, designed and tested according to IEC 60099-4.
The thermal stability of the MO surge arrester is proved in the operating duty test according to LD 2, which gives an energy input of 5.5 kJ/kV (Uc).
ABB MWD series arrester is a silicone rubber insulated gapless metal oxide arrester with voltage levels between 4-110KV. It has a variety of models and can be applied to systems with different voltage levels.
The MWD series is a silicone-rubber-insulated, gap-less metal-oxide surge arrester. It uses metal-oxide (MO) resistors as the core component, and the silicone-rubber housing directly molds the resistors without spark gaps. This structure not only has excellent protection characteristics but also improves the reliability and safety of operation.
Overvoltage protection of
Transformers
Motors
Cables
Cable sheaths
Medium voltage equipment
Application
Alternating current (AC)
Indoor
Commonly seen models in the MWD series include MWD-03, MWD-04, MWD-05, MWD-08,MWD-15 etc. The following are the models corresponding to different voltage levels:
For the 6-kV voltage level, the model is MWD-08.
For the 10-kV voltage level, the model is MWD-15.
Other models such as MWD-27 are als
MWD-03 with a rated voltage of 3.75 kV,
MWD-04 with a rated voltage of 5 kV,
MWD-05 with a rated voltage of 6.2 kV,
MWD-06 with a rated voltage of 7.5 kV,
MWD-07 with a rated voltage of 8.7 kV,
MWD-08 with a rated voltage of 10 kV.
There are also other models such as MWD-11 (rated voltage 13.7 kV), MWD-12, MWD-13 (rated voltage 16.2 kV), MWD-14 (rated voltage 17.5 kV), MWD-15 (rated voltage 18.8 kV),
ABB high voltage arrester
MWD03, MWD20, POLIM-D04N, POLIM-I34N,
MWD04, MWD22, POLIM-D06N, POLIM-I36N,
MWD05, MWD23, POLIM-D08N, POLIM-I37N,
MWD06, MWD24, POLIM-D09N, POLIM-I40N,
MWD07, MWD25, POLIM-D10N, POLIM-I41N,
MWD08, MWD26, POLIM-D12N, POLIM-I42N,
MWD09, MWD27, POLIM-I43N, POLIM-I86N,
MWD10, MWD29, POLIM-D14N, POLIM-I44N,
MWD11, MWD41, POLIM-D15N, POLIM-I60N,
MWD12, MWD44, POLIM-D16N, POLIM-I84N,
MWD13, MWK03, POLIM-D18N, POLIM-I86N,
MWD14, MWK04, MWK14, MWK39,
MWD15, MWK05, MWK15, MWK41,
MWD16, MWK06, MWK16, MWK44,
MWD17, MWK07, MWK17, MWK24-K4,
MWD18, MWK08, MWK18, MWK34-K4,
MWK09, MWK28, MWK20, MWK41-K4,
MWK10, MWK29, MWK22, MWK44-K4,
MWK11, MWK34, MWK24, MWK26,
MWK12, MWK35, MWK25, MWK27