Commissioning Engineer

Hollybank Trustees Ltd; Drogheda; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Professional development opportunities

Site-based project exposure

Job summary

Hollybank Trustees Ltd in Drogheda, Ireland, seeks an experienced HV/MV Substation Commissioning Engineer to lead installation, testing, commissioning and energisation of substations on site.

The role covers AIS/GIS switchgear, transformers and protection systems, with responsibility for safe operation and thorough testing. Travel to project sites is required and a strong knowledge of HV procedures is essential.

Qualifications

• Electrical Engineering qualification or equivalent.
• Proven experience in HV/MV substation commissioning.
• Experience with protection relay testing and SCADA.
• Ability to read electrical drawings and single-line diagrams.

Responsibilities

• Commission HV and MV substations from pre-commissioning through energisation and handover.
• Test and commission HV/MV switchgear, circuit breakers, isolators and associated control systems.
• Commission power and distribution transformers and protection/monitoring systems.
• Test protection relays including overcurrent, earth fault and differential schemes.
• Carry out secondary injection testing and verify protection settings.
• Test CT/VT circuits, ratio, polarity and wiring.
• Commission control, interlocking, automation, RTU/IED and SCADA systems.
• Complete SCADA point-to-point, alarms and communication testing.
• Read and interpret single-line diagrams and protection drawings.
• Fault-find and resolve electrical, protection and communication issues.

Skills

HV/MV substation commissioning

SCADA/RTU/automation

Protection testing

Electrical drawings reading

Education

Electrical Engineering degree

Tools

SCADA

RTU

DNP3

IEC 61850

Job description

Location: On site / Drogheda, Co. Louth, Ireland
job type: Permanent / Full-time
Sector and subsector: Engineering | Electrical
Salary: Negotiable salary

HV/MV Substation Commissioning Engineer

About the Role

We are looking for an experienced HV/MV Substation Installation & Commissioning Engineer to join our team and lead the installation, testing, commissioning and energisation of electrical substations.

The role covers HV/MV AIS/GIS switchgear, Busbar and steelworks, CB/DS/ES, transformers, NER, NGT, protection, CTs/VTs, control, automation and SCADA, with responsibility for ensuring systems are fully tested, safe and ready for operation.

Key Responsibilities

• Commission HV and MV substations from pre-commissioning through to energisation and handover.
• Test and commission HV/MV switchgear, circuit breakers, isolators and associated control systems.
• Commission power and distribution transformers and associated protection and monitoring systems.
• Test protection relays, including overcurrent, earth fault, differential, transformer and other protection schemes.
• Carry out secondary injection testing and verify protection settings and trip circuits.
• Test and verify CT and VT circuits, including ratio, polarity, continuity and secondary wiring.
• Commission control, interlocking, automation, RTU/IED and SCADA systems.
• Complete SCADA point-to-point, alarms, indications, controls and communication testing.
• Read and interpret single-line diagrams, schematics, wiring diagrams and protection drawings.
• Fault-find and resolve electrical, protection, control and communication issues during commissioning.
• Prepare commissioning test sheets, reports, punch lists and handover documentation.
• Coordinate with clients, contractors, manufacturers and project teams during commissioning and energisation.
• Work safely in accordance with HV procedures, permits, switching schedules and site requirements.

Requirements

• Proven experience in HV/MV substation commissioning.
• Strong knowledge of switchgear, transformers, protection systems, CTs and VTs.
• Experience with protection relay testing and secondary injection.
• Experience with SCADA, RTUs, automation and substation control systems.
• Ability to troubleshoot electrical and protection systems effectively.
• Ability to read electrical drawings and single-line diagrams.
• Electrical Engineering qualification or relevant technical experience.
• Strong understanding of HV safety and commissioning procedures.
• Willingness to travel and work on project sites as required.

Experience with IEC 61850, IEC 60870, DNP3, Modbus, numerical protection relays, GIS/AIS substations and utility or renewable energy projects would be advantageous.

What We Offer

• Opportunity to work on HV/MV electrical infrastructure projects.
• Technical responsibility across primary and secondary substation systems.
• Varied project and site-based work.
• Professional development and opportunities to grow within the organisation.
• Competitive salary and benefits package.