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EXTRA HIGH VOLTAGE CABLE FAULT LOCATING

Early planning, better outcomes!
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EXTRA HIGH VOLTAGE CABLE FAULT LOCATING

Early planning, better outcomes!

The container solution for HVDC and HVAC fault location:

Quick and effective fault finding via our comprehensive containerized toolbox solution.
Distributed
energy
resources
Digital
Substation
Specific and
advanced
applications
General
Protection
Start now
1
R30 high voltage system
This is the standard setup of Megger’s System R30 test van (refer to p. 11 of its user guide for details). The Teleflex VX manages the operating mode and phase selection, supplying mains voltage to required devices and switching the HV path accordingly.
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NCTS high performance system
The Network Combination Test Set (NCTS) features ultra-high-power hardware designed for the demanding needs of offshore wind farms, enabling testing up to 525 kV. Optional for fault finding on cables up to 220 kV for a shorter container.
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Discharge and earthing unit 3.4 MJ
With a capacity of 3.4 MJ, this unit safely discharges electrical energy and grounds equipment for maintenance or safety procedures.
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Surge extension 100 kV, 4 kJ
Providing extended surging capabilities up to 100 kV and 4 kJ for pre-location and pinpointing.
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Switching elements for 150 kV DC
These are components used for switching DC voltage up to 150 kV, facilitating the control and direction of electrical currents in high-voltage direct current (HVDC) systems.
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Operator room
With centralized control, a toolbox designed for TSOs, and a proven track record, including a world record in testing, we are your trusted partner.
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Connection room with cable drums
The patch panel allows for organized and easily managed connections, enabling efficient routing and maintenance of cables within the system.
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Connection room with cable drums
The patch panel allows for organized and easily managed connections, enabling efficient routing and maintenance of cables within the system.
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Storage of additional equipment
This space is designated for a standalone high-voltage bridge and a standalone tone generator, both of which are described in detail below. This designated area ensures that these devices are easily accessible and well-organized for efficient use.
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Power Generation Protection​ - Nuclear
In nuclear power plants, there are many aspects to consider for a preventive maintenance program. Specifically those related to environmental safety, and those that ensure a stable network; both aspects make protection schemes rather complex.
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One of several service doors and access points
This service door serves as one of several access points, providing entry to designated areas for maintenance or inspection purposes.
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Close
1
R30 high voltage system

This is the standard setup of Megger’s System R30 test van (refer to p. 11 of its user guide for details). The Teleflex VX manages the operating mode and phase selection, supplying mains voltage to required devices and switching the HV path accordingly.

Learn More >
Check ProductRequest Quote
2
NCTS high performance system

The Network Combination Test Set (NCTS) features ultra-high-power hardware designed for the demanding needs of offshore wind farms, enabling testing up to 525 kV. Optional for fault finding on cables up to 220 kV for a shorter container.

Learn More >
Check ProductRequest Quote
3
Discharge and earthing unit 3.4 MJ

With a capacity of 3.4 MJ, this unit safely discharges electrical energy and grounds equipment for maintenance or safety procedures.

Learn More >
Check ProductRequest Quote
4
Surge extension 100 kV, 4 kJ

Providing extended surging capabilities up to 100 kV and 4 kJ for pre-location and pinpointing.

Learn More >
Check ProductRequest Quote
5
Switching elements for 150 kV DC

These are components used for switching DC voltage up to 150 kV, facilitating the control and direction of electrical currents in high-voltage direct current (HVDC) systems.

Learn More >
Check ProductRequest Quote
6
Operator room

With centralized control, a toolbox designed for TSOs, and a proven track record, including a world record in testing, we are your trusted partner.

Learn More >
Check ProductRequest Quote
7
Connection room with cable drums

The patch panel allows for organized and easily managed connections, enabling efficient routing and maintenance of cables within the system.

Learn More >
Check ProductRequest Quote
8
Storage of additional equipment

This space is designated for a standalone high-voltage bridge and a standalone tone generator, both of which are described in detail below. This designated area ensures that these devices are easily accessible and well-organized for efficient use.

Learn More >
Check ProductRequest Quote
9
One of several service doors and access points

This service door serves as one of several access points, providing entry to designated areas for maintenance or inspection purposes.

Learn More >
Check ProductRequest Quote
DER
DER protection

DER are connected into medium voltage levels in the network and the protection is rather basic. Self-powered relays are common which create unique test challenges. All together require a cost efficient but capable solution.​

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GP
General protection

In all parts of the network, there are a few fundamental protection schemes which are used to protect the network, i.e., overcurrent and overvoltage.

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DS
Digital substation

IEC 61850 require specialized solutions to effectively verify that the digital substation is properly configurated. GOOSE and Sampled Values are closely related to protection testing.

Learn More >
Check ProductRequest Quote
PGP
Power generation protection

In large-scale generation stations, there are many aspects to consider when it comes to both protecting the assets and to ensuring a stable network, making the protection schemes rather complex.

Learn More >
Check ProductRequest Quote
TP
Transformer protection

The power transformer is the most valuable asset in the substation and therefore rigorous protections schemes have been developed to both protect it but also to keep the network up and running.​

Learn More >
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Digital Substation

Software, data communication and control, etc., is standard in modern substations. Though the development and implementation of IEC 61850 since mid 2000’s, the way to design, configure and run the substations have changed. This IT influence brings many advantages but also introduce new challenges to the industry.

Distributed energy resources

The power network is facing a huge change moving from centralized, large generation stations to smaller DER. Accurate communication leading to quick and correct decisions will be key in the development of the smart grid. The relay protection in DERs, like wind and solar farms, uses rather basic protection functions but their design creates other challenges when it comes to testing.

Special and advanced applications

Advanced relay testing refer to protection functions that isn’t straight forward parameters such as current, voltage or frequency. Even though that is exactly what is measured and calculated, the advanced protection category is either presented in another format, such as impedance for distance protection, or require complex test setup as transformer differential.

Webinars

Real time data tracking provides up-to-date visibility of your grid's performance

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IEC 61850 Solutions

Fault detection, quick location, determination, and predictive maintenance tools decrease SAIDI and SAIFI

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Latest Technical Content

Comprehensive data sets and analytics tools deliver the knowledge to make intelligent data-based decisions

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Digital
Substation

Software, data communication and control, etc., is standard in modern substations. Though the development and implementation of IEC 61850 since mid 2000’s, the way to design, configure and run the substations have changed. This IT influence brings many advantages but also introduce new challenges to the industry.

Distributed
energy resources

The power network is facing a huge change moving from centralized, large generation stations to smaller DER. Accurate communication leading to quick and correct decisions will be key in the development of the smart grid. The relay protection in DERs, like wind and solar farms, uses rather basic protection functions but their design creates other challenges when it comes to testing.

Special & advanced applications

Advanced relay testing refer to protection functions that isn’t straight forward parameters such as current, voltage or frequency. Even though that is exactly what is measured and calculated, the advanced protection category is either presented in another format, such as impedance for distance protection, or require complex test setup as transformer differential.

Digital Substation

In modern digital substations, the IEDs and instrument transformer merging units are connected through data networks. The information sent in these networks follows the IEC 61850 standard, an international standard that Megger, as a thought leader, has been contributing to since Edition 1. IEC 61850 networks require specialised solutions to effectively verify that the substation is properly configurated, and Megger has been providing such solutions since 2009.
Read More

Distributed Energy Resources

The power network is facing a huge change moving from centralised, large generation stations to smaller DERs (Distributed Energy Resources), like wind and solar farms. With added communication and intelligence, the DERs are main components of the smart grid. However, the relay protection in DERs facilitates basic protection functions but their design creates other challenges when it comes to testing.
Read More

Advanced Applications

Advanced relay testing refers to protection functions that are not straightforward parameters, such as current, voltage, or frequency. Even though that is exactly what is measured and calculated, the advanced protection category is either presented in another format, such as impedance for distance protection, or requires a complex test setup as a transformer differential. Dedicated software for specific applications provides confidence that complex tasks can be performed simpler.
Read More

Onshore or offshore -  
seaworthy and acclimatized container

  1. R30 high voltage system
  2. NCTS high performance system (for up to 525 kV; optional up to 220 kV)
  3. Discharge and earthing unit 3.4 MJ
  4. Surge extension 100 kV 4 kJ
  5. Switching elements for 150 kV DC
  6. Operator room
  7. Connection room with cable drums and system outputs via quadruple patch panel
  8. Storage of additional equipment: standalone tone generator and standalone HV bridge
  9. One of several service doors and access points

Detecting low resistance faults

BIFRÖST

High Voltage Bridge

  • Uses voltage drop method for best results on low resistance faults
  • Suitable for long HVDC and HVAC cables
  • Up to 20kV DC and 850mA
  • Incorporates temperature for higher accuracy and precision
  • Integrated discharge unit for cable capacitances above 600μF
  • Automated and centrally controlled from a single rotary dial and graphical user interface
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Pinpointing the fault

HUMMINGBIRD

Powerful tone generator

  • Creates an audio tone at the fault location
  • Highly intuitive human-machine interface
  • Frequency of 10 to 40Hz in steps of 1Hz
  • 100A max current
  • 40kW max power
  • Set of connection leads for HV cable terminations

Tone is easy for divers to detect

Backgammon board

The Megger advantage

Minimise downtime and ensure the reliable transmission of clean electricity

Claim quick and effective fault finding with our comprehensive containerized toolbox solution.

Ensure the highest level of protection for your personnel and equipment with Megger's solutions

Our containerized solution has been rigorously tested and certified to meet international safety standards.

Reduce training burden and ensure efficiency

Our fully automated, centrally controlled system simplifies complex tasks, rendering effortless operation with state-of-the-art user convenience.

Confidently navigate the challenges of your operations

We are by your side, offering guidance, innovative and record-breaking solutions, and unparalleled support.

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Additional Resources

Learn more about our expertise in HV cable fault location
Challenges and safety aspects for effective fault finding on HVAC and HVDC cables

A peer-reviewed paper that explains the practical steps necessary to fault locate on HV cable and how it differs from fault locating on MV cable

Case Study: Cable fault location on the world’s longest HVDC interconnect

Viking Link is a landmark subsea HVDC cable link between Denmark and the UK.
This study covers their chosen fault locating solution.

Recorded webinar on cable fault location in wind turbine installations

This webinar focuses on cable fault location in Renewables like offshore wind installations. One of our highly experienced cable specialists shares his experience and insights.

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