Description
ISA STS 5000 Substation Test Set Repair Services
The ISA STS 5000 is a critical instrument used by substation commissioning engineers, utility maintenance crews, relay protection technicians, and power system consultants. When this equipment fails or drifts out of specification, June Company delivers expert repair and NIST-traceable calibration to restore full operational accuracy.
About the ISA STS 5000
As a substation test set instrument, the ISA STS 5000 is designed for demanding applications. Specifically, substation test sets are multi-function instruments that test CTs, PTs, circuit breakers, grounding systems, and winding resistance in substation equipment. Accurate and reliable performance is essential — measurement drift or component failure can cause costly errors, compliance issues, and project delays.
Common Substation Test Set Issues We Repair
Our repair process addresses the root cause of every issue:
- Rugged case/connector damage: diagnosed through systematic testing and resolved with component-level repair
- Output current/voltage stage failure: identified during our multi-point inspection and corrected to restore specification performance
- Measurement channel drift: addressed with OEM-grade components and verified against traceable standards
- Communication interface faults: repaired by technicians experienced with ISA instrumentation
Calibration and Performance Verification
Every ISA STS 5000 repair includes NIST-traceable calibration covering key parameters such as polarity check, CT ratio test, and winding resistance. We issue detailed calibration certificates documenting measured performance against manufacturer specifications.
Why Choose June Company for ISA Repair?
Customers choose June Company for our depth of technical expertise:
- 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 substation test set equipment from ISA and related manufacturers
- OEM-Grade Parts: Genuine or equivalent components for lasting reliability
- Nationwide Service: Secure shipping and service for customers across the United States
- Component-Level Repair: We diagnose and repair at the board and component level, not just swap modules
How Our Repair Process Works
- Free Evaluation: Ship your ISA STS 5000 to our facility. We provide a detailed assessment and firm quote at no cost.
- Expert Repair: Certified technicians perform output stage rebuilds, measurement channel recalibration, communication module repair, and comprehensive substation test 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 ISA STS 5000 is used by substation commissioning engineers, utility maintenance crews, relay protection technicians, and power system consultants. 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 ISA STS 5000 repair and calibration. Our team is ready to evaluate your instrument and provide a no-obligation quote.
Email: info@juneusa.com






