Kingsine KF900A Repair
Kingsine Electric Automation

Kingsine KF900A Relay Tester Repair

$245.00

Listed price is a starting estimate. Final quote issued upon evaluation. Repaired and tested by June Company, trusted in the power and utility sector. Includes a 90-day warranty and NIST-traceable calibration available upon request. Ideal for substation, field service, and control system applications.

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Description

Kingsine KF900A Relay Tester Repair & Calibration Services

June Company provides expert repair and calibration services for the Kingsine KF900A Relay Tester, restoring precision signal output, protection scheme testing, and fault simulation functions. Whether your unit fails to initialize, delivers unstable current or voltage outputs, or displays communication errors, our technicians can restore it to factory-grade performance.

We support Kingsine relay test sets used in substations, power system commissioning, and IEC 61850-based protection system validation.

Common Kingsine KF900A Issues We Repair

  • Unit will not power on or freezes at startup

  • Output current or voltage not stable or inaccurate

  • Phase angle or frequency injection errors

  • Relay trip signals not triggering or misfiring

  • Faulty touchscreen, display, or keypad

  • USB, LAN, or RS232 communication failures

  • Output terminal wear, connection issues, or port faults

Our Repair & Calibration Process

Each KF900A relay tester is serviced with complete diagnostic testing and live simulation verification:

  • Evaluation completed within 48 hours

  • Detailed inspection and cleaning of internal PCBs and output modules

  • Repair of amplifiers, signal sources, relay outputs, and communication boards

  • Full verification with simulated relays, trip signals, and test sequences

  • Optional NIST-traceable calibration certificate available

Why Choose June Company?

  • 25+ years of experience servicing relay test systems and power grid diagnostic tools

  • Component-level repair expertise and accurate fault isolation

  • All services backed by a full 90-day warranty

  • Fast turnaround, responsive communication, and documented results

  • Calibration-ready service for regulated industries and QA environments

Service Your KF900A with Confidence

If your Kingsine KF900A is not performing as expected, June Company is ready to help.
📩 Contact us today to schedule repair, evaluation, or calibration services.

Brand

Kingsine Repair

Kingsine Electric Automation Co., Ltd. is a company known for manufacturing test and measurement equipment, specializing in protection relay test sets, power quality analyzers, and other related products for electrical power systems. Some of their key products and their functionalities include:
  1. Protection Relay Test Sets: These devices are used to test and verify the performance of protection relays in electrical substations and power systems. They simulate fault conditions and measure relay response times to ensure reliable operation and protection of equipment.
  2. Power Quality Analyzers: Kingsine produces analyzers that monitor and analyze various aspects of electrical power quality, including voltage fluctuations, harmonics, flicker, and power factor. These tools help identify and diagnose power quality issues that can affect equipment performance and reliability.
  3. Transformer Testers: Equipment designed to test transformers for parameters such as turns ratio, winding resistance, insulation resistance, and transformer oil testing. These tests ensure the proper functioning and reliability of transformers in electrical networks.
  4. Circuit Breaker Testers: Kingsine manufactures testers used to test and evaluate the performance of circuit breakers in terms of timing, operation sequence, and contact resistance. Proper testing ensures that circuit breakers operate correctly during fault conditions.
  5. Ground Resistance Testers: Instruments used to measure the resistance of grounding systems to ensure electrical safety and compliance with standards. They help verify that grounding systems provide a low-resistance path to dissipate fault currents safely.
  6. Online Monitoring Systems: Kingsine also offers online monitoring systems that continuously monitor electrical parameters and performance metrics of power equipment, providing real-time data and alerts for proactive maintenance and fault detection.
Kingsine products are widely used in industries such as power generation, transmission, distribution, and industrial automation, where accurate testing, measurement, and monitoring of electrical systems are crucial for reliability, safety, and efficiency.
Kingsine Electric Automation

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