Mossmoran – 132KV Balance of Plant

Mossmorran 132kV Substation – Clean Air Circuit Breakers Asset Replacement

Scope of Works
NRS Group were required to supply, handle, install, test & commission all equipment in accordance with the technical requirements, supporting specifications, drawings, standards, technical guidance notes, manufacturer’s instructions and the Bill of
Quantity to achieve a fully working scheme.

As part of the project we were also required to interface with Siemens and SPEN to ensure that the services provided met the requirements for the satisfactory installation & connection of all plant & equipment.
This also extended to interface with Siemens and/or its subcontractors to ensure all equipment was satisfactorily tested.

First Stage: Existing Circuit Breaker CB‐280 Replacement.

Works included:
Decommission, dismantle and package existing circuit breaker.
Install new circuit breaker
Installation of support steel structure over existing foundations.
Installation of Circuit Breaker.
Above ground earthing.
LV Cabling (AC and DC).
Busbar and Connectors Installation.
Cold commissioning (including SF6 gas filling).
New Circuit Breaker CB‐280 commissioning.
Commissioning new circuit.
Alarms and Indications.
Overall commissioning tests.

Second Stage: Existing Circuit Breaker CB‐505 Replacement.

Works included:
Decommission, dismantle and package existing circuit breaker.
Install new circuit breaker.
Installation of support steel structure over existing foundations.
Installation of Circuit Breaker.
Above ground earthing.
LV Cabling (AC and DC).
Busbar and Connectors Installation.
Cold commissioning (including SF6 gas filling).
New Circuit Breaker CB‐505 commissioning.
Commissioning new circuit.
Alarms and Indications.
Overall commissioning tests.

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Quality, Collaborative & Pride

Our Mission Statement

Through the continuous development and empowerment of our people our aim is to deliver projects to the highest quality by taking pride in our work. We strive to improve by continually reviewing all we do, & take ownership to find solutions that are in the best interests of our Projects

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