Recently, the GDZJ-45S intelligent inter-turn impulse withstand voltage tester developed and manufactured by HV HIPOT completed the entire set of factory calibration and functional debugging, and was officially dispatched and delivered to the site of a large-scale hydropower equipment manufacturing enterprise for the purpose of conducting insulation detection of the inter-turns of the water turbine generator.
In the production and manufacturing process of water turbine generators, the inter-turn insulation of the stator winding is a weak link in the overall insulation system. Hidden damages generated during processes such as winding, embedding, end shaping, and varnish application, if not detected in advance, will pose significant safety hazards for the subsequent operation of the unit. Traditional detection methods are difficult to capture tiny inter-turn defects. The GDZJ-45S intelligent inter-turn impulse withstand voltage tester adopts the pulse waveform comparison method, applies high-frequency high-voltage pulses to the tested winding, conducts equivalent overvoltage non-destructive simulation tests, and relies on waveform comparison to quickly identify various hidden faults such as inter-turn short circuits, corona discharge, winding imbalance, and wiring errors, meeting the factory inspection requirements for large and medium-sized water turbine generator windings.
Equipment Core Advantages
Dual independent high-voltage output circuits, supporting synchronous comparison testing of two sets of windings, compared with traditional single-channel models, significantly improves testing efficiency;
Comprehensive software and hardware security protection system, rectifier tube circuit voltage stabilization and current stability protection, isolated high-frequency current sensor, effectively avoiding the risk of overload damage to the instrument;
High-voltage output numerical LED direct reading, high-voltage fixture, high-voltage lead wire have high withstand voltage grades; Waveform intuitive display, convenient for test personnel to judge and analyze;
Suitable for inter-turn impulse withstand voltage tests of windings of large and medium-sized AC and DC motors, water turbine generators, and transformer windings. It meets the requirements of industry test standards. Complete machine assembly， multiple rounds of factory tests， to packaging and dispatch， the technical team of HV HIPOT strictly controls each link to ensure that the equipment meets the conditions for on-site use. After the equipment arrives， our technical personnel will cooperate with the customer as needed to complete on-site debugging， practical training， and help the test personnel quickly master the use of the instrument.
Post time: Oct-15-2026