A gas-insulated switchgear lineup in a substation hall

Electrical · Products

Switchgear and materials,supplied and installed

The equipment we supply under the electrical scope — on its own against your specification, or as part of a package we also erect, test and commission.

What we supply

Sourced against your single-line diagram and rating schedule, from the vendors we are authorised for and the ones your specification names.

Circuit Breaker

SF6, vacuum and air circuit breakers for HT and LT service, rated against the fault level your system sees.

Isolator

Off-load isolators and earth switches, single and double break, with manual or motorised operation.

Current Transformer

Metering and protection cores to the accuracy class and burden the relay scheme needs.

Potential Transformer

Inductive VTs for metering, protection and synchronising, single and three phase.

Capacitive Voltage Transformer

CVTs for EHV lines where an inductive VT is neither practical nor economic, with carrier coupling where required.

Surge Arrester

Metal-oxide gapless arresters sized to the system voltage and insulation co-ordination study.

Control & Relay Panel

Simplex and duplex panels built and wired in our own works, with numerical relays configured and tested before despatch.

HT Switchgear

Air and gas insulated switchgear, indoor and outdoor, supplied and erected with the bus and cable terminations.

AC Distribution Board

ACDB for auxiliary supplies, with incomer, bus coupler and outgoing feeders to the schedule.

DC Distribution Board

DCDB for protection, control and emergency supplies, with battery and charger interface.

LT Panels (LDB, BMK, PDB)

Lighting distribution, bus main kiosk and power distribution boards, manufactured and routine-tested in house.

Junction Box

Field junction boxes in steel, stainless and GRP, to the IP and area classification of the location.

Clamps & Connectors

Bimetallic and aluminium clamps, T-connectors, terminal connectors and hardware for substation bus work.

Earthing Materials

Electrodes, strips, conductors and clamps, supplied against the earthing calculation and layout.

Lightning Protection Materials

Air terminations, down conductors and earthing for the protection zone the calculation defines.

Cable Tray & Accessories

Ladder, perforated and mesh tray with bends, tees, reducers, covers and supports, hot-dip galvanised or painted.

Send us the schedule

Send a single-line diagram, a rating schedule or a bill of materials and we will come back with an offer — supply only, or supply with erection, testing and commissioning.

Electrical Products — INVENIA SYSTEMS