Description
SMC Raptor C45 MS 4SL Primary Injection Repair
The SMC Raptor C45 MS 4SL Primary Injection is a protective relay test set – it generates precisely controlled voltages and currents, and times how a protection relay responds. High-current amplifiers driven hard into inductive loads are the heart of it, and the part that wears.
The SMC Raptor C45 MS 4SL Primary Injection is repaired at June Company by technicians who work on this class of instrument daily, for utility relay technicians, substation commissioning crews, and industrial protection teams. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common SMC Raptor C45 MS 4SL Primary Injection problems we fix
- Internal power supply faults.
- Display, keypad or front-panel faults.
- One current or voltage channel weak or dead – amplifier output-stage failure in a single channel while the others still work, which is the classic giveaway.
- Phase angle accuracy drifted.
- Trip timing measurement errors.
- Binary input or output faults.
- IEC 61850 or GOOSE communication failures.
- Convertible channels not combining.
- Cooling fan or thermal shutdown.
FAQs
Are the timing and phase measurements verified? Yes, against reference standards, because those are the specifications a relay test set exists to deliver.
What if it is not economical to repair? We tell you in the quote. The evaluation is free and there is no obligation to proceed.
Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.





