PUSH Electrical PS-YC115 On-Load Tap-Changer Tester

The instrument is used to measure the transition waveform, transition time, and transition resistance value at each moment, as well as three-phase synchronism of a transformer on-load tap-changer.

Maintenance Testing: OLTC testers are used by utility companies, maintenance contractors, and power system operators to perform routine diagnostic tests on tap-changers installed in power transformers. These tests help identify potential issues or defects in the tap-changer mechanism and associated components, enabling proactive maintenance and repair actions.

Commissioning: During power transformer commissioning, OLTC testers are used to verify correct operation and alignment of the tap-changer with the transformer windings. This ensures that the tap-changer operates properly and switches between tap positions smoothly without interruptions or voltage fluctuations in the electrical network.

Troubleshooting: When tap-changers malfunction or operational problems occur, OLTC testers are used to identify the root cause through comprehensive electrical tests and performance evaluations. This helps maintenance teams quickly locate and rectify faults or abnormalities in the tap-changer mechanism, minimizing downtime and service disruptions.

Electrical Testing: OLTC testers perform a range of electrical tests, including winding resistance measurement, insulation resistance measurement, voltage regulation tests, and dynamic resistance measurements during tap-changing operations.

Control Interface: These testers typically provide a user-friendly interface with intuitive controls and graphical displays, enabling operators to set test parameters, monitor test progress, and analyze test results in real time.

Safety Features: OLTC testers include safety mechanisms such as interlocking functions, overload protection, and an emergency stop button to protect operators during testing and to help prevent damage to the tap-changer and related equipment.

Data Logging and Analysis: Advanced OLTC testers are equipped with data logging capabilities to record test data, waveform captures, and event logs for further analysis and reporting. This supports comprehensive assessment and documentation of tap-changer performance over time.

Preventive Maintenance: Regular testing with OLTC testers helps detect potential issues or deterioration in tap-changer condition before they develop into major failures, supporting proactive maintenance and extending the service life of power transformers.

Enhanced Reliability: By verifying proper operation and alignment of the tap-changers, OLTC testers improve overall reliability and stability of power transmission and distribution systems, reducing the risk of unplanned outages and equipment damage.

Regulatory Compliance: Periodic testing and documentation of tap-changer performance using OLTC testers support compliance with applicable industry standards and regulatory requirements, demonstrating adherence to best practices in power system maintenance and operation.