Generator Systems






Generator Controls Upgrade.

Upgrade of control system to allow long-term paralleling of a 1250kVA generator set to two separate mains supplies for STOR and TRIAD Avoidance.

We installed a ComAp control system to synchronise the generator to enable synchronisation with the mains supplies. This not only allows the on-site electrical team to test the generator on the site load at any time with no break in the supply, but also allows the hospital to save money using TRIAD avoidance, and to make money by allowing the DNO to call for the generators to export power to the grid.

This was all carried out with no disruption to the hospital staff or patients, and only very short, planned shut downs.

Musgrove Park Hospital, Taunton, UK.

Didcot Power Station - Generator Systems

Generator, Main LV Switchgear, UPS and Sub-Main Cabling Replacement

Knight Electrical Ltd acted as Principal Contractor for this project, taking responsibility for Health and Safety, CDM management and appointing of subcontractors.

This project was carried out largely during night shifts, over a period of several months. We built a new main switchroom and extended the existing generator room, both in the basement car park, in order to install the new switchgear, generators and cabling before migrating each supply from the old switchgear to the new.

The system allowed synchronising of the generator to the mains to allow testing of the generator on load and no-break return to mains.  

Bank Headquarters, Cardiff, Wales

Holiday Cottage North Wales - Generator Systems

Supply and Installation of LV Switchgear and Generator Control System

This project involved synchronising three 1100kVA generator sets to six mains supplies to support the hospital load in the event of a mains failure, and to allow STOR operation to export power back to the grid. An added advantage of a synchronising system is to allow the return from generator supply to mains, when the mains supply is restored, seamless.

We installed a ComAp control system, sourced from IPU Ltd in West Bromwich, with all of the controllers communicating over a redundant-ring optical fibre network.

We supplied and installed the generator distribution switchgear, as well as two full new mains switchboards and the addition of mains controls to the four remaining existing switchboards.

NHS Hospital, West Bromwich, UK

British Embassy Baghdad - Generator Systems Police Training College - Generator Systems

Installation of 3x500kVA generator sets and their associated switchgear, including the power and control cabling, air conditioning supplies, fire suppression system, lighting and power. The generators were installed into containers, along with the switchgear at the generator supplier’s premises, we then flew to Baghdad to carry out the testing and commissioning on site.

The entire system was designed to operate at an ambient temperature of 55°C.

British Embassy, Baghdad

Electrical installation of a 1250kVA generator.

For this project, we designed, supplied and installed a redundant starting system for the datacentre’s new backup generator and supplied and installed the generator switchgear, complete with a load bank connection point for load testing of the generator. We also designed, supplied, installed and commissioned the generator control system.

The twin-starter system included separate outputs to the Building Management System for charge fail and battery voltage on both battery banks.

We tested and commissioned the generator system with no disruption to the working of the datacentre.


Cardiff, Wales

Datacentre Cardiff - Generator Systems

Other Projects

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01460 259 250





The Old Workshop, Eaglewood Park, Ilminster, Somerset, TA19 9DQ

Telephone: +44(0)1460 259 250



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Knight Electrical Ltd are specialists in Power Systems integration, undertaking Generator controls and all forms of installation and site modification works. Founded in 1992, Knight Electrical Ltd has been carrying out installation and maintenance, and working with electrical switchgear and generator controls for over 25 years.

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