Phoenix

Client Challenges

The client needed a competent contractor to install all necessary 275 kV plant to facilitate the connection of a Hybrid Synchronous Compensator (H-SC) at Neilston substation which is part of the Phoenix system security and synchronous compensator project.

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Location

Neilston, UK

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Voltage

275 kV

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Completion Date

2017

H&MV Solution

As Principal Contractor, H&MV project managed the design and construction of the 275 kV plant to facilitate the connection of a Hybrid Synchronous Compensator

Project Scope

H&MV Engineering project managed the design and construction of the new 275 kV bay.
The new 275 kV bay was fed by teeing into the existing Windyhill/SGT2 mesh corner to provide the point of connection for the H-SC. This was achieved by installing a new bay comprising of a new circuit-breaker, rotating centre post disconnector including dual earth switches, current transformers, capacitive voltage transformers, combined current/voltage transformers, free standing earth switch, surge arrestors and post insulators. All modification of existing Windyhill/SGT2 mesh corner protection was also included in this project.
The H-SC is being installed at Neilston substation to help stabilise the system from short circuit levels, system inertia & reactive power as the generation mix evolves to a higher penetration of renewables and the uncertainty over future availability of large generating plants in the UK.
H&MV Engineering were responsible for issuing the Integrated Test Plans (ITPs), Construction Management Plans, Quality Plans, Safety Management Plan and Temporary Works Register
Daily Toolbox Talks, weekly progress and safety meetings, issue and risk management along with monthly status reporting
Project management and commissioning of electrical installation.
Produce a complete set of electrical as-built drawings and a safety handover