Description
Manta MTS-5100 Relay Test System Repair
The Manta MTS-5100 Relay Test System 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.
June Company’s certified technicians repair the Manta MTS-5100 Relay Test System 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 Manta MTS-5100 Relay Test System problems we fix
- 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.
- Internal power supply faults.
- Display, keypad or front-panel faults.
FAQs
One channel is weak and the rest are fine. Repairable? Yes, and it is the most common fault on these. Amplifier output stages fail individually and are repaired at component level.
Are the timing and phase measurements verified? Yes, against reference standards, because those are the specifications a relay test set exists to deliver.
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.






