Bibloc nuclear pressure transmitters chosen by Hinkley Point C03 December 2020

Rolls-Royce has signed a contract with Hinkley Point C for the delivery of safety-critical Bibloc pressure transmitters for the two EPR nuclear reactors currently under construction in Somerset, UK.

Hinkley Point C, which is the first nuclear power station to be built in the UK for more than 20 years, will provide low-carbon electricity for around six million homes.

As part of this contract, Rolls-Royce will provide 140 safety classified (K1) Bibloc pressure transmitters, which will perform flow, level and pressure measurements of the plant’s nuclear steam supply system (NSSS).

Qualified for 60 years of operation, Bibloc pressure transmitters are designed and manufactured by Rolls-Royce I&C teams based in Grenoble, France, and have already been chosen to be implemented in more than 90 nuclear reactors worldwide.

The two-part devices consist of a non-electronic sensor installed in the reactor building, and one electronic converter installed in the electrical building. The 24-48VDC electronic converter delivers an electrical signal from 4-20mA in proportion to the measured pressure.

The pressure transmitters are rated to 0.5% accuracy and can withstand 200 Mrad gamma radiation, 10g ZPA seismic forces and 170°C steam temperatures, according to the supplier.

Operations Engineer

Related Companies
Rolls-Royce plc

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