Description
Kingsine KFA300 Relay Tester Repair Services
June Company’s certified technicians repair and calibrate the Kingsine KFA300 for utility relay technicians, substation commissioning engineers, relay manufacturers, and industrial protection teams. As relay test set specialists, we understand this equipment inside and out — and we know exactly how to restore performance when problems arise.
About the Kingsine KFA300
In the field, relay test sets generate precise voltage and current waveforms to test the operation and timing of protective relays used in power system protection schemes. Professionals depend on the Kingsine KFA300 for precise, repeatable results. Any degradation in performance impacts measurement confidence and downstream decisions.
Common Relay Test Set Issues We Repair
June Company’s repair services for this instrument include:
- Timing measurement drift: identified during our multi-point inspection and corrected to restore specification performance
- Phase angle accuracy errors: addressed with OEM-grade components and verified against traceable standards
- Communication module faults: repaired by technicians experienced with Kingsine instrumentation
- Binary input/output failures: resolved through targeted diagnostics and precision repair techniques
- Output amplifier failure: diagnosed through systematic testing and resolved with component-level repair
Calibration and Performance Verification
Every Kingsine KFA300 repair includes NIST-traceable calibration covering key parameters such as relay testing, pickup/dropout, and trip timing. We issue detailed calibration certificates documenting measured performance against manufacturer specifications.
Why Choose June Company for Kingsine Repair?
What sets June Company apart:
- Traceable Calibration: NIST-traceable calibration certificates included with every repair
- 90-Day Warranty: All repairs backed by our parts and labor warranty
- Category Specialists: Dedicated experience with relay test set equipment from Kingsine and related manufacturers
- Nationwide Service: Secure shipping and service for customers across the United States
- OEM-Grade Parts: Genuine or equivalent components for lasting reliability
- Component-Level Repair: We diagnose and repair at the board and component level, not just swap modules
Our Service Workflow
- Free Evaluation: Ship your Kingsine KFA300 to our facility. We provide a detailed assessment and firm quote at no cost.
- Expert Repair: Certified technicians perform output amplifier rebuilds, timing system recalibration, phase accuracy restoration, and relay test plan verification.
- Calibration: Full NIST-traceable calibration with documented results across all critical parameters.
- Quality Verification: Final functional testing confirms your instrument meets or exceeds original specifications.
- Return Shipment: Securely packaged and shipped with calibration certificate and repair documentation.
Industries We Serve
The Kingsine KFA300 is used by utility relay technicians, substation commissioning engineers, relay manufacturers, and industrial protection teams. June Company understands the operational demands of these fields and the importance of keeping critical test equipment in service.
Request a Repair Quote
Contact June Company for professional Kingsine KFA300 repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@juneusa.com






