Metering, Marshalling and Interface Equipment

Control Engineering designs and manufactures bespoke metering, marshalling and interface equipment for electricity distribution, transmission, generation and grid connection projects.Our equipment provides organised and reliable connections between field devices, instrument transformers, protection systems, control equipment, meters, monitoring systems and communications networks.

Metering Equipment

Metering equipment collects and presents electrical measurements required for monitoring, control and system operation.

We can incorporate customer-specified equipment such as:

Electrical meters and measurement devices
Measurement transducers
CT and VT circuits
Test terminal blocks and isolation facilities
Metering selector switches
Indication and alarm equipment
Communications interfaces
Auxiliary supplies and protective devices

Equipment layouts, wiring and terminal arrangements can be configured around the specified metering scheme and customer requirements.

Marshalling Equipment

Marshalling equipment provides an organised connection point between field cabling and protection, control, monitoring or communications systems.

Our marshalling products can include:

Marshalling panels
Marshalling kiosks
Marshalling and junction boxes
Terminal pillars
Equipment racks
Mounting plates and internal assemblies
Cable termination arrangements
CT and VT marshalling equipment

Clear terminal identification, cable segregation and structured wiring help simplify installation, testing, maintenance and future fault finding.

Interface Equipment

Interface equipment enables separate systems and devices to exchange signals and operate together as part of the wider electrical scheme.

We can design and manufacture:

Protection relay interface panels
RTU and SCADA interface panels
Intertrip communications panels
Alarm, indication and monitoring panels
Communications and data cabinets
Automation interface panels
Control and status interface equipment
Bespoke relay and terminal assemblies

Customer-specified RTUs, PLCs, protection relays, intelligent electronic devices and communications equipment can be incorporated into complete factory-wired assemblies.

Designed Around the System

Each assembly is developed around the electrical scheme, specified equipment and required interfaces.

Key considerations can include:

CT and VT circuit requirements
Signal type and voltage
AC and DC circuit segregation
Terminal numbering and identification
Test and isolation facilities
Cable entry and termination
Communications cabling
Earthing arrangements
Equipment access and maintenance
Space for future additions
Indoor or outdoor installation requirements

Where CEL design is included, we can prepare the required schematics, wiring diagrams, terminal schedules and equipment layouts for customer approval. Alternatively, equipment can be manufactured from approved customer drawings.

Testing and Documentation

Completed assemblies are inspected and tested against the approved drawings, specifications and agreed testing requirements before delivery.

Project documentation can include:

General arrangement drawings
Electrical schematic diagrams
Wiring diagrams
Terminal schedules
Cable and core termination information
Equipment and label schedules
Test documentation
As-built drawings

Replacement and Extension Projects

We can also manufacture replacement or additional metering, marshalling and interface equipment for existing installations.

This can include new equipment designed to match an existing scheme, replacement terminal arrangements, additional interface panels or assemblies manufactured to fit within an existing enclosure.