SGXZ Variable-Frequency AC Series Resonant Test S | RFQ Sourcing Details

The SGXZ AC Frequency Conversion Series Resonance Test Device is designed for AC withstand-voltage testing of large-capacitance, high-voltage equipment. Supported test objects include XLPE cables rated from 10 kV to 500 kV, transformers, generators, busbars, GIS, GIL, SF6 switches, insulators, and CT/PT equipment.

It is described for preventive-maintenance, commissioning, acceptance, on-site, and laboratory testing. The system uses the series-resonance principle and operates across a stated frequency range of 30–300 Hz. Available control modes are automatic and manual.

Integrated protective functions cover over-current, over-voltage, and flash-over conditions. The stated maximum test-voltage choices are 100 kV, 200 kV, 300 kV, or higher, but the exact rating must be selected and confirmed for the required test object.

A complete system is described as comprising a variable-frequency control power supply, excitation transformer, resonant reactor or reactors, capacitive voltage divider, and an optional compensation capacitor. Reactor construction may be dry-type epoxy cast or oil-immersed.

The modular components are intended to support transportation and on-site assembly. The stated input-power options are 220 V or 380 V, single-phase, 50 Hz, with a stated 10% value whose tolerance meaning should be confirmed before ordering.

Procurement confirmation is essential because several ratings are configuration-dependent. Buyers should provide the test object's type, rated voltage, capacitance, cable length where applicable, required test voltage, test frequency, and duty cycle.

Confirm the reactor quantity and construction, total system capacity, excitation-transformer rating, divider ratio and accuracy, controller functions, compensation-capacitor requirement, input-power tolerance, included cables and accessories, and the assembled system's dimensions and weights.

The listed package information is not fully consistent: one specification gives 85 × 85 × 133 cm, while another gives a package size of 85 × 58 × 130 cm and a gross weight of 120 kg.

Confirm the final packing dimensions, number of packages, gross and net weights, and wooden-box protection for the selected configuration.

A one-year warranty and remote operation and maintenance training are stated;buyers should confirm the written coverage, exclusions, response process, and installation support for the final order.