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7/28/2019 Cable Sheath Voltage Limiters Presentation
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Power System Equipment Solutions to meet your needs
AK Power Solutions
HV Cable Sheath Voltage
Limiters
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Power System Equipment Solutions to meet your needs
HV Cable Earthing Link Boxes
AK Power Solutions has supplied HV CableSheath Earthing Link
Boxes since 1989
Countries that have been supplied include
Australia, UK,
Europe,
Middle East, USA,
China,
New Zealand,
Singapore, Malaysia and
Indonesia
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7/28/2019 Cable Sheath Voltage Limiters Presentation
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Power System Equipment Solutions to meet your needs
H.V. Cable Sheath Voltage Limiters
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7/28/2019 Cable Sheath Voltage Limiters Presentation
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H.V. Cable Sheath
Voltage Limiters
Designed, manufactured and tested in Australia by AK Power
Solutions
Used on major cable projects up to 800kV throughout Australia
andinternationally
Highly reliable and effective at managing cable sheath voltage
risesand the associated power flows that can result under fault
conditions
Competitively priced providing valuable protection to expensive
cableinstallations
Available in 3.0kV, 4.5 kV, 6.0kV, 7.5kV and 9.00kV voltages
othervoltages as required by clients
Suitable for Indoor or Outdoor Applications
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HV Cable Sheath Voltage Limiters
Due to a highly non-linear and non-ohmic
current-voltagecharacteristic, the sheath voltage limiters do not
conduct anysignificant current during normal and
fault-operatingconditions regardless of the magnitude of power
frequency
induced voltages. For this application the function of surge
arresters is limited
only to protect the cable anti-corrosion jacket and
bondingsystem against switching and lightning surges to values
below the breakdown strength of protected elements. As a
consequence all elements of the cable bonding system
must be designed to withstand the induced power
frequencyvoltages, both during normal and fault operations.
In return the SVLs are designed to withstand the residualvoltage
due to current surges and to have the thermalcapability to absorb
and dissipate the energy of conductedsurges.
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HV Cable Sheath Voltage Limiters
The use of non-combustible materials such as porcelain for
postinsulators, polymer for sheath voltage limiters and
non-flammableinsulating materials for all component parts
incorporated in linkbox.
Suitable rated connections of very low contact resistance
toeliminated hot spots and thermal sparking within the link
box.
The metallic box and its sealing system are usually designed
towithstand an explosive internal pressure of up to 250 kilo
Pascals.
The use of high current rated Zinc-Oxide SVL arresters instead
ofSilicon Carbide, spark gap or other types of arresters to satisfy
themost onerous cable operating conditions.
The Zinc Oxide SVL arresters exhibit far superior
electricalcharacteristics and long-term reliability
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H.V. Cable Sheath Voltage Limiters
100100100100100kAHigh current 4/10s withstand
10.89.07.25.43.6kVrms20kA 8/20 20 shot duty cycle with
power frequency voltage
applied 1s/shot
2020202020kARated 8/20s current
7.76.45.13.82.5kVrmsMaximum Continuous Operating
Voltage
9.07.56.04.53.0kVrmsRated Voltage
TZS9.0TZS7.5TZS6.0TZS4.5TZS3.0SVL Type
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For More Information
To obtain more information please contact our
Office and FactoryAK Power Solutions22 Healey Circuit,
Huntingwood
NSW 2148
Australia
P.O. Box 6907
Blacktown DC
NSW 2148
Phone 61 - 2 - 9676 3500Fax 61 - 2 - 9676 3511
[email protected]
mailto:[email protected]:[email protected]:[email protected]
