ABB MWK High Voltage Surge Arresters AC 4-44kV

By Chris Dodds on 27th January, 2013

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ABB MWK High Voltage Surge Arresters AC 4-44kV

ABB Medium Voltage MV Surge Arresters

ABB MWK High Voltage Surge Arresters AC 4kV - 44kV



ABB MWK indoor and outdoor high voltage AC surge arresters protect against multiple atmospheric and switching overvoltages including Very Fast Transients (VFT). ABB MWK surge arresters are suitable for the protection of high voltage transformers, cables, motors and other HV electrical equipment.

ABB MWK Surge Arresters

ABB high voltage metal-oxide surge arresters are renowned for their high performance in both indoor and outdoor installations. The MWK surge arresters are produced with a polymer housing made of silicone. The silicone housing is deirectly moulded onto the active part of the surge arrester, thus avoiding any air volume or air gap inside the housing.  cover the complete range of continuous operating voltages from 4-44kV(kV rms), including 6.6kV, 11kV, 15kV, 20kV, 24kV, 33kV, 36kV cable networks and systems.

ABB MWK High Voltage Surge Arrester Advantages

  • Low residual voltage
  • Long protection distance
  • High energy input capacity
  • Explosion and shatter-resistant design
  • Pollution resistant and UV stable
  • Stable against shock and vibration

The surge arresters are extremely resistant against overload, thus preventing explosions and subsequential damage to other high voltage electrical equipment in the area. In comparison to other polymeric materials, silicone has the highest resistance against pollution. The silicone used by ABB has proven itself under severe environmental conditions like water, salt fog, sand, industrial pollution as well as UV radiation.

ABB surge arresters are tested according to IEC standard 9904, 1991.

 

ABB MWK High Voltage Surge Arrester Specifications

Nominal discharge current In 8/20 μs

10kA peak

Line discharge class (LD)

2

High current impulse Ihc 4/10 μs

100kA peak

Long duration current impulse

550A / 2000μs

Short circuit rating Is 50 Hz

20kA rms for 0.2s

Classification according to IEEE (ANSI) C62.11

Intermediate

Torque moment

50Nm

Tensile strength axial

1200N

Short term load SSL horizontal to axis

153Nm

Long term load SLL horizontal to axis

88Nm

Ambient air temperature

−60 to +40 °C

Altitude

up to 1800 m

Frequency of system voltage

16.7/50/60 Hz

 

 
  • Further Reading
 

ABB Medium Voltage Power Products

T&D are Specialist Distributors for ABB Power Products.

With the technical, commercial and engineering support of ABB Power Products divisions T&D can deliver Fuses, Transformers, Surge Arresters, Vacuum Contactors and Capacitors for the protection and distribution of medium voltage electricity and cable systems.

 

Invitation

Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group : Low & High Voltage Power, Cabling, Jointing, & Hazardous Area Electricals (LV-HV).

Discussion subjects include cable installations, cable jointing, electrical substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

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Surge Arresters, HV High Voltage ABB MWK 5-55kV rms Rated Voltage





Category:  ABB Power Products

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