Find a Tender · Live tender
UK Research & Innovation (UKRI)
UKRI-6064 ISP-1157 Replacement of Large ISIS Power Supply System
Live: the notice is at tender stage.
01/ The notice
Key facts
- Value
- £3,000,000Estimated value stated in the notice
- Deadline (UK time)
- Mon 23 Nov 2026, 14:00 GMTOpen for bids.
- Published
- 10 Sep 2026
- Region
- Not stated
02/ The brief
What the notice says
Not fully read: this is the notice text; attached documents are not read.
The ISIS Neutron and Muon Source Facility, part of UKRI’s Science and Technology Facilities Council, are looking to procure a replacement three-phase Alternating Current (AC) Magnet Power Supply System to make up the losses in a resonant magnet circuit.
The requirement is for a modular 1200 kVA three-phase AC voltage source power supply that includes a control system capable of regulating the designated magnet load current to a given setpoint and to a high level of stability. It is important to emphasise that the magnet load current to be regulated is not the same as the AC power supply output current and the measurement signal for the load current will be provided by the facility in the form of a DCCT with a -10/+10 V signal representative of the load circuit current. The three-phase output shall have a variable voltage output from 0 V to 250 V line-neutral and an output voltage accuracy of ±50 mV. The system shall be fed from a nominal 400 Vrms AC, 3-phase 50 Hz sinusoidal supply, intrinsically safe by design, with high efficiency, high reliability, high maintainability and fully compliant and marked with relevant standards.
03/ Classification
CPV codes
Common Procurement Vocabulary codes, exactly as the notice lists them. No descriptions are added here.
- 31682000
04/ History
Releases of this notice
2 releases held, oldest first. Dates are UK time.
- 16 Jun 2026Planning notice
Planning notice published 16 June 2026.
Release 056648-2026
View this release on Find a Tender (opens in a new tab) - 10 Sep 2026Tender notice
Tender notice published 10 September 2026. The source does not state what changed.
Deadline in this release: Mon 23 Nov 2026, 14:00 GMT.
Release 085988-2026
View this release on Find a Tender (opens in a new tab)
05/ Limits
What the source does not tell us
- None recorded for the fields above. Attached documents are not read, so this is not a full account of the tender.
06/ Questions
About this notice
07/ Related
Where to go next
These links follow a fixed rule applied to this notice’s buyer, text and CPV codes. They are not advice on whether to bid.
- Reference
- ocds-h6vhtk-06b5f2
- Source
- Find a Tender
- Stage
- tender · Open
- Last verified
- Thu 17 Sep 2026, 08:12 BST
- Read at
- Sat 17 Oct 2026, 01:04 BST
Contains public sector information licensed under the Open Government Licence v3.0. Source data © Crown copyright.
Built on published notices from Find a Tender and Contracts Finder.