27.1 Manufacture of electric motors, generators, transformers and electricity distribution and control apparatus
Enterprise Europe Network (Profile: TRCH20190626001)
Short description of advertisement:
Bespoke Direct Current Current Transducers (DCCTs) required for the largest particle physics accelerator in the world
The European Organisation for Nuclear Research (CERN) is looking for the supply, under manufacturing agreement, of 32 bipolar voltage output Direct Current Current Transducers (DCCTs) with two nominal current ratings ranging of 14 kA to 18 kA and a 12 hour stability of less than 0.5 parts in 106 (ppm), for the Large Hadron Collider (LHC) which is the world’s largest and most powerful particle accelerator. CERN is looking for suppliers of 32 pieces, through public tender procedure.
A DCCT is a high-precision transducer based on the zero-flux detection principle. The current to be measured (primary current) is passed through the centre of a toroidal core (transducer head). The output of a zero flux detector is used in a current control loop to generate a compensation current (secondary current) which is an accurate fraction of the primary current according to the primary-secondary turns ratio. This compensation current is measured by a precision burden resistor and the resulting voltage amplified to produce the required voltage output.
The pieces will be delivered under a manufacturing agreement with the supplier, after a public tender procedure.
For more information please contact Enterprise Europe Network Latvia.