Wuhan Jiuhua Jingce Power Equipment Co., Ltd., a professional manufacturer of power testing instruments based in Wuhan, China, is proud to announce the official launch of our newly developed JH2702TN Transformer Turns Ratio Tester with Neutral Point, a high-performance testing device tailored for power grid maintenance, transformer inspection and electrical engineering projects worldwide.
Traditional transformer ratio bridges are plagued by complicated operation, indirect readings and single-phase testing limitations. The JH2702TN model is engineered to solve these pain points comprehensively, combining innovative hardware design and intelligent software to deliver fast, accurate and all-round testing performance.
Equipped with three-phase CNC sine inverter power supply and soft start & soft stop functions, this tester ensures outstanding testing speed and measurement precision. It supports a full range of testing scenarios, including three-phase transformers, single-phase transformers, CT, PT and Z-type transformers. It can complete turns ratio, voltage ratio, vector group, wiring group and polarity tests in one operation, and is also capable of angle difference detection for single-phase equipment. The device covers a wide testing range from 0.9 to 20000, with high measurement accuracy: ±(reading × 0.1% + 2 digits) for values ≤1000, ±(reading × 0.2% + 2 digits) for 1000–3000, and ±(reading × 0.3% + 2 digits) for values over 3000. It supports up to 99 tap changer gears, fully meeting the demands of diverse transformer types.
Designed for on-site field work, the JH2702TN features a 7.0-inch TFT color touch screen with clear menu prompts for intuitive operation. Built-in intelligent alarm functions remind users of high-low voltage reverse connection and output short circuit, effectively avoiding operational errors and improving testing safety. The device adopts local data storage, which can save up to 100 groups of test records. Users can view, print data via the integrated thermal printer or export records to PC through the reserved USB port for further analysis. Additionally, the non-power-off clock and date function guarantees complete traceability of test data.
In terms of portability and adaptability, the tester weighs only 4.7kg with compact dimensions of 320mm × 280mm × 135mm. It works steadily under AC 100–240V, 50/60Hz power supply, and operates normally in an environment of -10℃ to 50℃ with relative humidity below 90% (non-condensing), suitable for harsh outdoor and workshop working conditions.
As a newly upgraded product with neutral point testing capability, JH2702TN fills the demand gap for neutral point related transformer testing. It complies with State Grid preventive testing regulations and international industrial standards, and is an ideal choice for power companies, electrical contractors, inspection institutions and engineering teams across the globe.
Wuhan Jiuhua Jingce adheres to the concept of "Quality First, Technology Innovation". We sincerely welcome global customers to inquire about product details, technical specifications and customized solutions. We look forward to establishing long-term cooperative partnerships and providing reliable power testing equipment for the global power industry.
Contact Us
Website: https://www.powertransformertester.com
Email: market@wuhanjhjc.com
WhatsApp: +86 18240056461
