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A Guide To HV Efficiency: Distribution Transformers & Voltage Management (Part 2 of 3)

September 12th, 2019

A Guide To HV Efficiency Distribution Transformers & Voltage Management

HV Efficiency

Distribution Transformers & Voltage Management (Part 2 of 3)

uploaded by Chris Dodds - Thorne & Derrick Sales and Marketing Manager

The second installment of the HV efficiency blog series intends to define the difference between tapping down HV transformers, and voltage management technologies such as voltage optimisation, with the end goal of decreasing a site’s voltage.

There’s a clear difference between HV distribution transformers and the Powerstar range of voltage optimisation products namely that HV distribution transformers decrease the high voltage (HV) electricity from the grid, typically 11000V or 6600V, to low voltage (LV) electricity, typically 400V-433V, so that it can be used safely.

This technique alters all the power to a site from HV to LV.

In comparison, voltage optimisation technology reduces the LV voltage, when greater than required, to the optimal voltage for the specifications of the electrical equipment on-site; this is done by subtraction, rather than by transformation.

Distribution Transformers & Voltage Management

Can tapping my transformer achieve greater efficiencies?

A voltage reduction using distribution transformers can occur through changing the tapping of the transformer although this is not advised. Voltage management can be achieved by tapping as you can get different turns ratio and the ability to control output.

Care should be taken as changing the tapping has a knock on effect on the number of coils leading to the impedance of the transformer. This leads to an increase in the transformer current if the voltage is reduced, or a deduction in the transformer current in the event of an increase in voltage.

When altering the tapping it should not be tapped beyond the settings that they were built for to ensure they still function at their optimal efficiency. Using this technique to decrease the voltage is ineffective due to the relationship between voltage and current.

The current will be raised by 5% when the voltage in the transformer is lowered by the same percentage. Using this example, the losses in the transformer would increase by 25%. In the case of a typical 1000kVA transformer with a load loss of 8kW, based on a 75% load, reducing the voltage by 5% will increase these losses to 10kW, which will increase the site consumption by 17,520kWh a year, therefore inflating the site’s energy bill.

Tapping of HV transformers should be inline with site requirements e.g site capacity in order for them to function at full efficiency.

Smart Transformers | Dry Type Transformers | Liquid Filled Transformers | Cast Resin Transformers

Optimal efficiency through voltage management

Purpose-built voltage management technology together with an an amorphous core distribution transformer integrated with electronic-dynamic voltage management is the best approach to reducing voltage with the ultimately saving money. The Powerstar HV MAX is the perfect transformer.

The HV MAX incorporates features of a super low loss amorphous core transformer, which decreased the load losses by up to 75% in comparison with a CRGO distribution transformer, with the benefits of LV electronic-dynamic voltage management, which reduces and stabilises the on-site voltage providing energy consumption and cost savings.

Combining the technology means the Powerstar HV MAX is appropriate for sites performing their own HV/LV supply alongside sites with a high incoming voltage profile and an inefficient HV/LV distribution transformer.

LV MV HV Transformers

A Guide To HV Efficiency: The Core Of The Problem (Part 1 of 3)

September 12th, 2019

A Guide To HV Efficiency The Core Of The Problem

HV Efficiency In The Energy Industry

The Core Of The Problem (Part 1 of 3)

uploaded by Chris Dodds - Thorne & Derrick Sales and Marketing Manager

Changes in the energy industry happen frequently and can often be complicated to understand. Powerstar simplifies any developments and ensures their clients are kept in the loop with regards to changing technologies. This ensures they have the insight to make knowledgeable decisions about their energy infrastructure including 11kV transformers.

In this 3 part Blog series we will discuss a step by step guide on how your HV infrastructure can by more efficient by discussing the following:

Benefits of installing a super low loss amorphous core transformer over a traditional CRGO transformer
Difference between stepping down your transformers voltage and purpose-built voltage management technologies, such as voltage optimisation
Advantages of installing a smart distribution transformer integrated with remote monitoring capabilities

Since the taking over Bromsgrove Winding Services (BWS) Ltd, Powerstar have been able to extend theiFhatr smart energy solution capabilities which now include distribution transformers.

Now Powerstar are able to offer advice to their clients around the efficiencies of HV infrastructures and how companies can enhance them.

A Guide To HV Efficiency The Core Of The Problem

Greater efficiencies at the core

Many businesses look into upgrading their HV infrastructure to increase efficiencies and decrease electricity consumption, and this has aided advancement of core materials which experience lower losses and are more efficient than the materials traditionally used to manufacture HV transformers.

Amorphous alloy core technology has established a name for itself as providing positive results when studied and tested across numerous applications.

In comparison to CRGO’s the amorphous alloy has a flexible atom structure that allows for easy magnetisation and demagnetisation to occur. In turn this offers enhanced efficiencies and limits the volume of wasted energy.

Another advantage is the distribution transformer can be manufactured to meet the precise needs of the site. When provided, distribution transformers designed and delivered from concept to completion can provide enhanced site resilience and increased HV efficiencies.

Smart Transformers | Dry Type Transformers | Liquid Filled Transformers | Cast Resin

The importance of upgrading

your HV transformer

Transformers have a life expectancy of up to 40 years and those currently installed were made from various materials that no longer of high priority.

There has been a significant shift towards using more eco-friendly equipment as the issue of climate change has become more prevalent. Nowadays when upgrading your transformer you need to consider being more environmentally friendly and decreasing its carbon emissions.

Older transformers are often extremely less efficient than newer transformers for example new amorphous core transformers are able to obtain up to 75% lower core losses in comparison to traditional CRGO transformers.

Super Low Loss Transformers Up To 11kV By Powerstar SO-LO

Furthermore new bespoke transformers such as the Powerstar SO-LO amorphous core transformer meets and surpasses 2021 EU Ecodesign Directive standards set by the European Commission.

Older transformers are not likely to adhere to these standards and therefore in spite of their long life expectancy are out of date when measured against contemporary standards.

Changing a traditional transformer with a more efficient amorphous core transformer will reduce energy consumption and costs for businesses who manage their own HV infrastructure.

LV MV HV Transformers

Cable Ploughing | Meet ATP The European Utility Ploughing Specialists

September 12th, 2019

uploaded by Chris Dodds - Sales & Marketing Manager (Thorne & Derrick)
with kind permission of Ben James - Operations Manager ATP Cable Plough

Cable Ploughing

Electricity, Gas, Water, Telecomms & Railways

ATP are the UK’s leading utility installation contractor to use cable ploughs to install LV MV HV Power & Fibre Cables into underground cable trenches – cable ploughing is a modern trenchless technology delivering fast and efficient laying of cables, pipes and fibre optics with minimal ground damage. The highly skilled and experienced workforce of ATP successfully operate specialist equipment to achieve safe installations of pipes and cables below ground.

This aspect of the Cable Plough’s operation is particularly significant when working in areas of outstanding natural beauty such as National Parks, SSSIs, or areas which are particularly sensitive to ecological and environmental issues. Consequently, it provides designers and specifies an opportunity to soften the impact of schemes when route planning.

Because Cable Plough causes minimal disruption to the ground’s geological structure, it offers a significant reduction in time, money and risk for the client and contractor – cable ploughing also operates very effectively on soft ground and marshland, has the ability to work on almost any terrain and manoeuvre around most obstacles.

Added to this, as it cuts, installs and back-fills the cable trench – all in one operation – the Cable Plough’s method eliminates any risk of trench-collapse and associated health and safety concerns. Ploughing cables provides a huge increase in productivity compared to conventional utility working methods.

Environmentally friendly cable ploughing offers a significant reduction in time, money and risk for the client and contractor. Contact ATP to discuss your requirements.

The Benefits of Ploughing Cables

Environment

The most significant advantage of the Cable Plough is its low-impact on the environment.

Whilst traditional methods of pipe and cable installation require a sizable trench to be dug and then refilled, the Cable Plough’s efficient way of cutting a narrow slit into the soil causes only minimum disturbance to the land.

For local authorities and planners, the laying of supply lines can pose huge problems, especially when installations pass through protected countryside or areas of outstanding natural beauty.

Initially, ATP will carry out a site survey and report back any issues to the client.

Then, with little or no preparatory work required – such as removing top-soil, extracting large stones or excavation; work can begin.

With only a narrow cut into the ground, there is little damage and therefore no structural changes to the geological formation of the earth. Then, with an almost automatic closure process, it does not take long for the area of land to return to it’s original and natural state.

Installation of 1x40mm² fibre cable over 2km in one tide. Cable depths installed were 1.5m. Very hard compacted sand ground on UK’s 2nd hottest day on record (24th July). Safe and well executed project with meticulous planning and attention to detail. Operators safety and machine performance with the highest quality standards of installation. The demarcation between plough operation and public safety was well marshalled and coordinated by GPC in their project planning with safety and exclusions well established.

Cable Plough Project | Southport Landfall Fibre Cable Installation by ATP

Flexible

Whether it is flat, hilly, or undulating terrain, the adaptability of the Cable Plough enables it to cope with almost any surface. It is also capable of operating in wet and adverse areas, such as across marshland, through ditches and even into rivers, provided the water is no more the 1m deep.

The all-round flexibility enables it to plough around or adjacent to a variety of obstacles, such as: rocks, trees, barriers, hedges and walls, by lifting or moving the jibs and positioning the wheels to one side, or around the object.

Because of its agility, the Cable Plough is ideal for carrying out roadside projects, as signs, fences and barriers can easily be negotiated and need not be moved. It can even follow curves in the road to a radius of 4m. Also, because of way the cable plough installs, reinstatement of the ground is easily carried out, so there is less likely-hood of having to hold up traffic, or the need to have staff working on the roadside for lengthy periods of time.

Installation of 20kV (3x630sqmm in trefoil and 1x Ø32 cable duct and cable warning tape over 28km. Depths installed at are 1.8m. Ground conditions were particularly hard in places with clay and sections of deep peat. Duct installation was completed ahead of the civil contractor completing the access roads for the windfarm construction. Reducing sub-contractor interface, pinch points and overall programme of works.

Efficient

As well as the cost to the environment, the conventional methods of laying pipes and cables can be extremely labour intensive and time consuming. As the Cable Plough cuts into the ground, installs and backfills in one operation, it can cover a far greater distance in a day. In fact, if conditions allow it can work at a speed of up to one kilometre per hour!

Because of the way the Cable Plough operates, it requires less manual input than traditional methods, especially when it comes to reinstatement. It is also capable of carrying three drums of cables or pipes at once – another factor which adds to its efficiency.

Cable Plough is also efficient in the way it makes installations.

The unique design of the combined blade and guidance system means that pipes and cables are laid exactly in accordance to regulations – whatever the speed of travel.

In fact, inspections have proved that pipe and cable installations carried out by the Cable Plough are of better and more uniform quality than that of open trench methods.

Installation of 1 x 11kV cable into trench and cable warning tapetile over 4km. Cable depths installed were 1.4m. Ground conditions were ideal for ploughing with some areas of flint in remote areas. Hedge crossings and ditches were passed in a number of locations on the route removing the need for HDD offering considerable cost savings to their client. All sites ploughed were reinstated within twenty-four hours to minimise the environmental impact. The project team manoeuvred plant and equipment around site and between sections safely with good coordination with Traffic Management on fast moving A Roads.

Effective

Each installation project starts with the power-winch being safely sited ahead of the Cable Plough in an area where it can secure itself by dropping its anchor into the ground. However, in the case of roadside installations, the cable winch is capable of gripping to the asphalt without the need of its anchor.

The Cable Plough is capable of installing everything from a small cable to a SDR11 620mm diameter pipe.

In one operation it can install several cables and/or pipes, plus lightning conductors and warning tapes – this includes high voltage cables, up to 220 kV in the prescribed triangular combination, or two systems with a lateral spacing of 120mm.

The cable laying depth is infinitely adjustable to a depth of 2 metres and, cable or underground pipe installations can be carried out in nearly all ground conditions, such as dry soil, marshland and even soft rock.

The Cable Plough’s operation means that its cutting blade is controlled in such a way that the insertion angle is adjusted to the curvature of the earth. This means that cables and pipes are carefully laid, with no strain or tension.

As the blade cuts through the earth is creates a channel that forms the installation bed.

As the Cable Plough continues forward, the aperture is firmly closed to approximately half its depth and the earth forms a bridge over the cable or pipe. Therefore, the lower part of the cut remains open and is gradually filled by the penetration of silt.

Medium & High Voltage Cable Installations & Ploughing

Installation of 3x20kV (630sqmm) cables in trefoil arrangement and 1x Ø40 cable duct (for fibre optics) and warning tape over 4.5km. Cable depths installed were 2.4m in three separate locations in wet winter months of 2018. Ground conditions were particular difficult with dewatering issues and ditch crossings overcome by our client. Safe and well executed project complete with mobilisation and demobilisation from the UK.

Cable Ploughing Applications

Telecomms

Telecomms
Fibre optic – Zero Tension
Communication Ducts
Copper Cables
Roadside & Highways Communication Lines

Electricity

High Voltage Cables up to 132kV
Electrical Cable Ducts
Lightning Protection & Warning Tape
DC Cables & Ducting
Sub Sea Cables

Gas

HDPE Ducts (up to 620mm)

Water & Sewerage

HDPE Ducts (up to 620mm)

Railways

Multiple Cables, Ducts & Warning Tapes

Cable Plough | ATP providing cable ploughing technology to Spui Windpark, owned by Japanese renewables developer Eurus Energy Group, is located in the municipality of Hoeksche Waard in southern Holland. The wind farm consists of five Enercon E-126 EP4 wind turbines, each with a rated power of 4.2MW, hub heights of 135 metres and rotor diameters of 127 metres.

Get In Touch

Contact ATP

Jason Thomas (+44) 07969 225476 (Managing Director)
Ben James (+44) 07557 516273 (Operations Manager)
Visit https://www.atpcableplough.com/
Email [email protected]

THORNE & DERRICK

Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage voltage power systems:

Slip-on Cable Terminations
Cold-shrink Cable Terminations
Heat-shrink Cable Terminations
Cable Joints – Heat & Cold-shrink
Separable Connectors (Euromold)
Surge Arresters & Switchgear/Transformer Bushings

Furse | Earthing & Lightning Protection Design Services & Solutions

September 11th, 2019

Thorne & Derrick: Stockists & Suppliers of Furse Products

Furse

Thorne and Derrick are stockists and suppliers of Furse Earthing and Lightning Protection products. Acquired by the ABB Group, Furse is established as the world leader for earthing and lightning protection.

Lightning is a real and significant threat – which is why there is a need for a total solution (for more, see Furse).

💡 Experience

Furse has over 125 years of experience to provide the optimum design; using minimal material to save you money.

💡 Expertise

Specialist advice is provided from fully qualified technical engineers – focusing on earthing and lightning protection concerns.

💡 Knowledge

The most appropriate and up to date products are used due to exceptional knowledge of the latest materials

💡 Compliance

Furse designs comply with all national and international standards, ensuring they remain at the forefront of new developments. furse compliance standards

NFPA 780 Standard for the installation of lightning protection systems
IEEE Std 80:2013 IEEE Guide for safety in AC substation grounding
ENA TS 41-24 Guidelines for the design, installation, testing & maintenance of main earthing systems in substations
BS EN 50522:2010 – Earthing of power installations exceeding 1.k Vac • SS 555
BS EN/IEC 62305 Protection against lightning

Technical Earthing Solutions

Lightning Protection Solutions – Furse have a team of experienced engineers: engineering designs to meet client specifications and conducting risk assessment, complying to the latest standards.

Experienced Surveyors – Accurate surveys are the key to creating effective earthing systems. Multiple readings are taken to ensure safe and accurate designs.

Analysis & Earthing Design – The latest CDEGS software is used to optimise designs. A range of detailed reports are produced to meet clients’ requirements.

Earth Resistance Testing – The verification of earthing design is validated through measurement. An experienced team of engineers with a full understanding of electrode testing will conduct this.

💡 NEWS: Researchers map timing and location of rare lightning “superbolts.”

Superbolts release a thousand times more energy (at least) than the average lightning strike and tend to occur mostly over oceans and seas. Forrest Moreland via Unsplash

Furse Design services, site surveys & analysis

Earthing & Lightning Protection experts Furse provide Focused Technical Design Services | Image: Voltimum.co.uk

Earthing & Lightning Protection Solutions

Why choose Furse?

There are many benefits to choosing Furse for earthing and lightning protection analysis. They offer specialist advice from a fully qualified technical team, focusing on earthing and lightning protection. European and International standards are followed, which ensures that engineers remain at the focus of new developments.

Furse recognises that it is their responsibility to provide safe designs – and they always ensure to provide an optimum design, using minimal material and saving you money. By Utilising product knowledge and experience, designs are tailored and installed using the most appropriate products.

Soil Resistivity Surveys

A comprehensive soil resistivity survey is key to creating an effective earthing system; as opposed to inadequate or erroneous soil resistivity readings, which are likely to result in a flawed design.

Furse site surveys take multiple accurate soil resistivity readings at various depths across the site. As these results form the basis of the whole earthing design, the experience of engineers is critical in ensuring the correct implementation of the test data.

Analysis & Earthing Design

Furse can produce detailed earth electrode and lightning protection system designs. These are created through the use of the latest computer-aided design and modelling software and comply with recognised standards. Designs are also created to any complexity requirement or budgetary need. State-of-the-art software is used for full earthing analysis to determine step and touch voltages, potential rise and hot/cold classification of the site.

Earth Resistance Measurement

Earth resistance measurement is essential to accurately determine that the installed earthing system meets the criteria from initial design.

Furse technicians ensure all measurements are correctly taken and interpreted so that the true resistance of the earthing system can be accurately determined.

the total Furse solution

As the world leader in lightning protection services, Furse is committed to providing a good quality total solution.

Structural Lightning Protection

Furse offers a range of air termination systems, including strike plates and air rods to capture lightning strikes. They also offer an extensive range of down conductors and lightning protection components which channel lightning energy safely to a Furse earth termination network.

Air Termination Systems
Lightning Protection Conductors
Conductor Clips
Clamps And Hold-fasts

Earthing

A combination of earth electrodes, as well as FurseCEM soil conductive back-fills and conductors, are offered from Furse. Equipotential bonding bars are also supplied to provide effective, low resistance dissipation from the lightning protection systems to earth.

Earth Rods And Conductor Systems
Mechanical Earth Clamps And Bonds
Soil Conditioning Agents
Earth Bars And Equipotential Bonding

Electronic Systems Protection

Furse has an exhaustive range of equipotential bonding and transient overvoltage SPDs. These provide fully coordinated protection against transient overvoltages, on all incoming and outgoing metallic service lines – including power, data, signal and telecoms.

Lightning Equipotential Bonding SPDs
Mains Power Transient Overvoltage SPDs
Data, Signal And Telecommunication Lines
DC Power And Photovoltaic

FurseWELD – Exothermic Welding

FurseWELD exothermic welding is a cost-efficient and self-contained system. It uses the high-temperature reaction of powdered copper oxide and aluminium, within a mould, to form permanent electrical connections.

Moulds
Powder
Handle Clamps
Accessories

Industries

Furse has shared its expertise with the following industries. furse power plant

Oil & Gas / Petrochemical
Utilities
Rail & Infrastructure
High Tech & Industrial
Commercial Construction
Ports & Recreation
Government & Public Sector

For the full case study, visit the PDF in Further Reading.

furse industries case study

Further Reading

FurseCEM Earthing Conductive Aggregate Concrete

Furse | A Supplier Overview

THORNE & DERRICK

Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage power systems:

Slip-on Cable Terminations
Cold-shrink Cable Terminations
Heat-shrink Cable Terminations
Cable Joints – Heat & Cold-shrink
Separable Connectors (Euromold)
Surge Arresters & Switchgear/Transformer Bushings

Furse

September 9th, 2019

Thorne & Derrick: Stockists & Suppliers of Furse Products

Earthing & Lightning Protection

A Supplier Overview

Since 1893, Furse has provided world leading Earthing, Lightning and Electronic Systems protection solutions.

Furse have over 125 years of experience, and design and manufacture their own products. From design and manufacture, through to risk assessment and systems design advice, Furse offers an acclaimed total solution for earthing and lightning protection.

Furse has remained a constant force in an unpredictable world; even throughout a century that has seen such remarkable social and technological change. Acquired by ABB Group in 2012, the Furse brand is established as a world leader in earthing and lightning protection, with products specified and installed in many distinguished projects globally.

The combined expertise of Furse and the experience within the electrical sector that ABB provides, allows them to share the knowledge they hold in key industry sectors with customers. This results in properly informed decision making on the best earthing and lightning protection solutions. Furse earthing analysis uses state-of-the-art software to determine the step and touch voltages, earth potential rise and fall, and hot/cold site classification of the site generated by the initial design.

Photo by David Moum on Unsplash

Services include:

Lightning Protection Solutions
Soil Resistivity Surveys
Analysis & Earthing Design
Earth Resistance Testing

The expertise and experience of which Furse have attained has constructed and helped to develop their exceptional service; offering specialist advice from fully qualified engineers, as well as solutions that save money and use minimal material. Furse also offer design solutions: using the latest computer aided design and modelling software to produce detailed system designs for any complexity.

This produces high quality earth electrode and lightning protection designs, in compliance with globally recognised standards. Designs are tailored and installed using the most appropriate and up-to-date products. Knowledge of the latest standards ensures designs and products comply with the latest IEC/BS EN/NFPA/UL standards.

why do we need lightning protection?

Lightning is a real and significant threat. Containing astonishing amounts of electrical energy. Lightning discharges have been measured from several thousand to over 200,000 Amps (enough to light half a million 100 Watt bulbs). Although very short in duration, a lightning strike can cause tremendous damage and destruction.

Devastating consequences:

Direct lightning strikes damage structures, and create fire, explosion and electric shock hazards.
Indirect lightning (up to a kilometre away) creates transient over voltages which degrade electronic systems and disrupt essential services.

While the effects of a direct lightning strike are immediately obvious, secondary effects of lightning can be less visible; which can lead to equally catastrophic devastation, and damage to electronic systems within structures.

These frightening photos of lightning from a hurricane above Miami, Florida in the USA were taken after the storm left a trail of destruction in the Caribbean. Credit: Chad Weisser | Caters News

The need for a total solution

Lightning protection throughout the world is now governed by National and International standards which stress the need for a comprehensive solution. A structural lightning protection system cannot and will not protect electronic systems from lightning currents and transient over voltages. This is why a total solution to earthing and lightning protection is encouraged. This approach to lightning protection is now fully endorsed by the IEC/BS EN 62305, as well as NFPA 780 standards.

Buy A Copy Of The NFPA 780 Lightning Protection Systems Standards.

Furse delivers an approach demonstrating effective life safety, as well as long lasting and reliable protection of a structure and the electronic systems within. This solution is tailored and covers a wide range of sectors; providing dependable, long term lightning protection and earthing.

Furse Products

Contact Thorne & Derrick for competitive prices on the complete range of Furse products.

Conductors
- Bare conductors, bare stranded & tinned conductors
- Hard drawn bar & PVC covered conductors
- PVC covered conductors & guards
Air Termination
- Air terminals, bases, brackets & couplings
- Multiple point, strike pad & free-standing air termination
Conductor Network
- Conductor clips
- Standing seam roof fixings, puddle flange and holdfasts
- Trapezoidal holdfasts and conductor clamps
Earth Electrodes
- Earth rods & seal
- Inspection pits, plate, lattice & backfill materials
Earth Bonds & Clamps
- Mechanical clamps
- Earth boss & bonds
- Earth points & splitbolt connectors
- Static earth connection points, flexible braid bonds & static earth clamps
Earth Bars
- Earth bar & earth bars with single disconnecting link
- Earth bar with twin disconnecting link & accessories
FurseWELD
- FurseWELD exothermic welding
Electronic Systems Supplies
- Surge protection devices (SPDs) for mains power supplies
- Surge protection devices (SPDs) for data, signal and telephone lines
- Surge protection devices (SPDs) for computer and telephone lines
- Surge protection devices (SPDs) for specific systems

Furse Products

over 125 years of history

Furse has remained a constant force in an unpredictable world, through all the century could throw at it.

furse timeline

History

Further Reading

FurseCEM Earthing Conductive Aggregate Concrete

Furse Earthing & Lightning Protection Design Services & Solutions

THORNE & DERRICK

Slip-on Cable Terminations
Cold-shrink Cable Terminations
Heat-shrink Cable Terminations
Cable Joints – Heat & Cold-shrink
Separable Connectors (Euromold)
Surge Arresters & Switchgear/Transformer Bushings

Blog

A Guide To HV Efficiency: Distribution Transformers & Voltage Management (Part 2 of 3)

HV Efficiency

Can tapping my transformer achieve greater efficiencies?

Optimal efficiency through voltage management

Further Reading

THORNE & DERRICK SPECIALIST ELECTRICAL DISTRIBUTOR

The 11kV Specialists

A Guide To HV Efficiency: The Core Of The Problem (Part 1 of 3)

HV Efficiency In The Energy Industry

Greater efficiencies at the core

The importance of upgrading

your HV transformer

Further Reading

THORNE & DERRICK SPECIALIST ELECTRICAL DISTRIBUTOR

The 11kV Specialists

Cable Ploughing | Meet ATP The European Utility Ploughing Specialists

Cable Ploughing

The Benefits of Ploughing Cables

Cable Ploughing Applications

Get In Touch

THORNE & DERRICK

Furse | Earthing & Lightning Protection Design Services & Solutions

Furse

Technical Earthing Solutions

Furse Design services, site surveys & analysis

the total Furse solution

Industries

THORNE & DERRICK

Furse

Earthing & Lightning Protection

A Supplier Overview

why do we need lightning protection?

The need for a total solution

Furse Products

over 125 years of history

THORNE & DERRICK

Get a quote