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National Grid Type-Tested Installations


Charnvel Ltd. has obtained 'Type Registration' in accordance with NGTS 3.12.3 issue 6 June 2007 for substation LVAC supplies.

This involved 'Type Testing' our System 50 switchboard assembly, temperature rise testing, and ASTA certification of our busbar and enclosure systems.

Our track record speaks for itself.

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National Grid Cellarhead 400kv Substation

Images of a System 50 switchboard installation at National Grid Cellarhead 400kv Substation.Cellarhead 400v SwitchboardCellarhead outgoing switches

Ninfield 400kV Substation

System 50 Switchboard at Ninfield Substation.

ninfield 2

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Kensal Green

A Charnvel System 50 switchboard at Kensal Green Substation. Visit this pageIcon External Link for an overview of the project.

kensal 1

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Rhigos Substation

Installation at Rhigos substation

As part of the Pen y Cymoedd Wind Energy Project grid connectionIcon External Link, Charnvel Ltd supplied and installed a 630A System 50 switchboard into the new substation at Rhigos, South Wales.

rhigos hiab

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National Grid 800A Isolator ACB cabinet

National Grid 800A Isolator ACB cabinet

Working closely with National Grid, Charnvel have delevoped 3 and 4 pole variants of their Transformer Mounted 800A Isolator ACB cabinet, registred with the EGI CODE AMEB24.

An off load isolator switch is castell interlocked with an 800A ACB in such a way that the isolator swtich cannot ber operated 'on-load'

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Switchboard for Walpole 400kV substation

Walpole switchboard on support frameA large National Grid System 50 switchboard with over 80 outgoing ways fed from 3 incoming devices.

Due to flood risk this switchboard has been mounted on a sub-frame; supplied and installed by Charnvel Ltd

Greater Gabbard Off-shore Wind Farm

Off shore wind farmAn off shore wind farm

Charnvel Ltd. are proud to have supplied a System 50 type LVAC switchboard for the Greater Gabbard Wind Farm project.

Our customer Siemens, called upon our expertise in manufacturing the LVAC switchboard to handle local LV supplies on the platform and the on-shore substation.

The board was constructed to National Grid NGTS 3.12.3 specification.

More details of the Greater Gabbard project, can be found in a press release on the Siemens website.

Beddington 275kV Substation.

Beddington switchboard on site.In addition to the previously completed switchboard for the 132kV substation, Charnvel Ltd have recently built and installed an LVAC switchboard for the refurbished 275kV substation.

Manufactured and installed against a strict time scale Charnvel Ltd. completed another quality switchboard conforming to NGTS 3.12.3, the Charnvel board replaces an out of date Reyroll HH type switchboard, and will continue to provide reliable LVAC supplies to the substation for many years.

Tilbury 400kV GIS substation

Hiab crane lift

Charnvel Ltd together with SEESA (South East Electricity Substation Alliance) have completed another key project for the National Grid Company.

A System 50 Switchboard conforming to NGTS 3.12.3 Issue 7 June 2006 was recently installed at the Tilbury 400kV GIS substation.

Crystal Rig

The Crystal Rig SiteAgain, Charnvel has been involved in another prestigious wind farm project: Crystal Rig II, we were called upon to provide an LVAC switchboard to National Grid specification NGTS 3.12.3 Issue 7 June 2006.

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