Excitation modules
Excitation controllers, rotating diode assemblies and field modules for alternators.
Excitation modules: brands we source
All manufacturers ›Choose a maker to open a quote with it filled in. Current, surplus and discontinued references. Sourcing is not limited to these brands.
Overview
Excitation controllers, rotating diode assemblies and field modules for alternators.
Part of our protection relays & avrs range: generator and feeder protection, synchronisers and voltage regulation for gensets and switchboards.
Each line is quoted with its condition, lead time and warranty terms. Where an exact match is no longer available we put forward the maker’s successor for your approval. Availability, condition and lead time confirmed on enquiry.
Families we are asked for
- SELCO T-series
- Basler Electric
- Stamford and Leroy-Somer AVRs
- ABB REF and SPAJ
- Siemens SIPROTEC
Supply condition
New factory sealed
Unopened in the manufacturer's original packaging, with the factory seal intact.
New factory opened
Manufacturer packaging that has been opened, typically for inspection or to verify a revision, but the unit is unused.
New surplus sealed
Unused stock that has passed through the supply chain rather than direct from the maker, still sealed in its original packaging.
New surplus open
Unused surplus stock in original packaging that has been opened.
New without box
Unused, but supplied without the manufacturer's packaging.
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AVRs that hold alternator output voltage, analogue and digital.
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Single-function reverse-power, overcurrent and earth-fault relays for generator and switchboard protection.
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