IEC 60034-1 / GB/T 1094.2 Live Winding Temperature Rise Tester

The LSTMR-103 live winding temperature rise tester is a precision instrument designed for measuring winding temperature rise in accordance with IEC 60034-1:2017 and GB/T 1094.2-2013 standards. This specialized equipment evaluates the thermal performance of small-power motors and electronic transformers by accurately measuring cold and hot winding resistance values to calculate temperature rise data.

The instrument supports simultaneous live testing of single or dual windings to accommodate various testing configurations. Featuring a color LCD display, measurement data is presented with clarity and precision. Automatic range switching ensures measurement stability and repeatability across wide linear ranges.

Multiple communication interfaces including RS232/485 and USB flash drive storage facilitate data acquisition, preservation, and traceability. This capability supports product development, quality control processes, and life testing requirements with reliable testing documentation.

Standards Compliance

• IEC 60034-1:2017 – Rotating electrical machines – Part 1: Rating and performance
• IEC 61558-1:2017 – Power transformers, power supply units and similar products for use in electronic equipment – Part 1: General requirements and tests
• IEC 61558-2-6:2017 – Power transformers, power supply units and similar products for use in electronic equipment – Part 2-6: Particular requirements for switching power supplies
• GB/T 12350-2019 – Small power motors – General technical requirements
• GB/T 1094.2-2013 – Power transformers – Part 2: Temperature rise
• GB/T 19212.1-2022 – Safety of power transformers, power supplies, reactors and similar products – Part 1: General requirements and tests
• GB/T 19212.16-2022 – Safety of power transformers, power supplies, reactors and similar products – Part 16: Particular requirements for switch mode power supplies

Technical Specifications

• The color LCD screen displays cold resistance, hot resistance, temperature rise, and temperature rise test duration for two winding groups
• Selectable single or dual winding temperature rise detection modes
• Automatic range switching with wide linear range ensures consistent measurement repeatability and stable performance
• Equipped with RS232/485 interfaces for computer connectivity, enabling measurement data reading and storage for original data tracking and quality statistical analysis