High Precision Transformer On-Load Tap Changer Analyzer OLTC Dynamic Resistance

This instrument is mainly used to measure the transition waveform, transition time, instantaneous transition resistance values and three-phase synchronism of the on-load tap changer of transformers. It features high intelligence with full Chinese menu prompts for easy operation. Compact and lightweight with strong anti-interference performance, the equipment greatly reduces the labor intensity of field technicians. It serves as an ideal testing device for power generation and supply enterprises as well as transformer manufacturers to ensure safe production and improve product quality.

• High output current, suitable for testing smaller transition resistances.
• Equipped with multiple output current gears, applicable to tests of various types of test samples.
• Built with complete protection circuits for high reliability.
• Adopts a 7-inch full-touch industrial color LCD screen with a high resolution of 1024*600 and full viewing angle. The screen brightness reaches 400cd/m² for clearer display outdoors. Its touch panel is made of explosion-proof glass, making it well-suited for industrial environments.
• Full-function knob control and touch control serve as mutual backups to provide dual operation reliability. Combined with a brand-new UI display system, it delivers a safe and user-friendly operation experience.
• Fitted with a high-speed thermal printer for convenient data printing. It supports local storage and USB flash disk storage, and paired with upper computer software to greatly facilitate waveform analysis.

• 1.What is an On Load Tap Changer Tester?

  A:An On Load Tap Changer (OLTC) Tester is a specialized diagnostic instrument used to evaluate the operating performance of transformer on-load tap changers.
  The SXYZ-2008 On Load Tap Changer Tester is designed to measure key parameters including transition waveform, transition time, transition resistance, and three-phase synchronization performance of transformer OLTC systems.
  It helps power utilities, transformer manufacturers, and maintenance teams detect potential mechanical and electrical problems during transformer commissioning and preventive maintenance.

• 2.Why is OLTC testing important for power transformers?

  A:The on-load tap changer is the only moving component directly connected to the transformer circuit. Its mechanical switching performance directly affects transformer voltage regulation reliability.
  Regular OLTC testing helps identify:
  • Abnormal transition resistance
  • Extended switching time
  • Poor contact performance
  • Three-phase switching inconsistency
  • Potential mechanical wear
  The SXYZ-2008 tester supports OLTC condition assessment by analyzing switching characteristics and transition processes.

• 3.What parameters can the SXYZ-2008 OLTC Tester measure?

  A:The SXYZ-2008 On Load Tap Changer Tester can measure:
  • Transition waveform
  • Transition time
  • Transition resistance
  • Three-phase synchronization
  It is mainly used for analyzing the switching process of transformer on-load tap changers and evaluating their operating condition.

• 4.What is the output current range of the SXYZ-2008 OLTC Tester?

  A:The tester provides multiple output current ranges to meet different OLTC testing requirements:
  • 1A
  • 0.5A
  • 0.3A
  Multiple current settings allow testing of different types of transition resistance values.

• 5. Is the SXYZ-2008 suitable for transformer manufacturers and power utilities?

  A:Yes.The SXYZ-2008 is suitable for:
  • Transformer manufacturing plants
  • Power generation companies
  • Power transmission and distribution utilities
  • Transformer maintenance organizations
  • Electrical testing laboratories
  It can be used for transformer commissioning tests, preventive maintenance, and OLTC performance evaluation.