Goldhome HMCXZ-1080KVA/500KV Ultra-High-Voltage Series Resonance Equipment Undergoing Rigorous Testing
Goldhome Adds Another Powerhouse to Its Lineup of High-End Ultra-High-Voltage Testing Equipment! The HMCXZ-1080KVA/500KV variable-frequency series resonant high-voltage test equipment-a flagship model at the company's R&D and manufacturing base-has officially entered rigorous factory testing under all operating conditions and at full load. This comprehensive performance evaluation thoroughly verifies the equipment's ultra-high-voltage output stability, high-capacity load-bearing capability, and intelligent protection features. By refining high-end power testing equipment through stringent quality inspection standards, the company demonstrates its robust technical prowess in ultra-high-voltage R&D.
As a flagship testing device designed for 220 kV–500 kV ultra-high-voltage power projects, the HMCXZ-1080KVA/500KV series resonant unit features the industry's leading high-power configuration, The optimal combination of a massive 1080KVA rated capacity and an ultra-high 500KV output voltage perfectly addresses industry pain points such as insufficient capacity in traditional testing equipment, weak high-voltage load-carrying performance, and the inability to maintain stable voltage during testing of long-distance, high-capacitance specimens. It is an essential piece of equipment for ultra-high-voltage power grid infrastructure projects, large power equipment manufacturers, and authoritative third-party testing institutions.
Equipped with a high-precision variable-frequency resonance control system and based on proven series resonance technology, the unit enables ultra-high voltage output using only a small-capacity conventional power source, eliminating the need for high-power on-site power supply and offering exceptional on-site adaptability. The unit's output waveform is pure and stable, with waveform distortion strictly controlled at ≤0.3%. This eliminates test errors and specimen damage caused by harmonic interference, enabling non-destructive, high-precision insulation withstand voltage testing. It fully complies with authoritative domestic and international power testing standards such as IEC, DL/T, and GB/T, and offers industry-leading accuracy and reliability in test data.
In terms of application adaptability, this equipment is specifically designed for various ultra-high-capacity, high-capacitance, and ultra-high-voltage test specimens, comprehensively covering 500 kV/220 kV long-distance ultra-high-voltage cables, large GIS (Gas-Insulated Switchgear) units, main transformers, high-voltage bushings, and generator sets. It effortlessly handles long-duration, full-load withstand voltage testing of high-capacity test specimens, resolving multiple technical challenges in ultra-high-voltage power testing.
The equipment features a modular, split-type structural design with flexible reactor unit combinations and easy assembly and disassembly. It accommodates both fixed laboratory testing and mobile operations at complex outdoor job sites, significantly reducing transportation and installation costs for ultra-high-voltage testing equipment. Additionally, it is equipped with a fully automated intelligent operating system that supports automatic frequency sweeping and tuning, precise voltage ramping, constant-voltage timing, and data storage and export. Users can freely switch between manual and automatic modes, ensuring simple and efficient operation that greatly enhances the efficiency of ultra-high-voltage testing operations.
In terms of safety protection, the equipment is equipped with a multi-layered intelligent protection system with microsecond-level response times. It integrates comprehensive protection functions, including overvoltage, overcurrent, flashover and breakdown, detuning, short circuit, and zero-voltage startup protection. In the event of a breakdown or flashover fault in the test specimen, the system can instantly detune and extinguish the arc, preventing the generation of destructive overvoltages. This maximizes the safety of test personnel, the equipment under test, and the instrument itself, thereby eliminating ultra-high-voltage testing safety risks at their source.
Throughout this in-house testing, real-world ultra-high-voltage engineering conditions were fully simulated. The technical team conducted rigorous, item-by-item verification of core performance metrics, including the equipment's resonance accuracy, stability of 500 kV maximum voltage output, full-load operation at 1,080 kVA, sensitivity of high- and low-voltage protection systems, and waveform quality. Currently, testing is progressing smoothly, with smooth voltage ramp-up, precise resonance, stable operation without fluctuations, and consistent heat dissipation throughout. All core performance indicators meet the design standards for high-end ultra-high-voltage equipment.
The rigorous testing of this HMCXZ-1080 kVA/500 kV ultra-high-voltage series resonance equipment fully demonstrates Goldhome's technological innovation capabilities and world-class manufacturing standards in the field of ultra-high-voltage, high-capacity power testing equipment. Moving forward, Goldhome Guodian Huamei will continue to deepen its expertise in the field of ultra-high-voltage power testing, continuously optimizing the performance and solutions of high-end testing equipment to strongly empower the construction of national extra-high and ultra-high-voltage power grids, the safe operation and maintenance of power equipment, and the high-quality development of power engineering.
