SXBP High-Voltage AC Series Resonant Test System | RFQ Sourcing Details

The SXBP is a configurable high-voltage AC series resonant test system designed for AC withstand testing of electrical equipment in substations rated from 10 kV to 500 kV or below.

Listed test objects include power transformers, XLPE cables, generators, GIS, high-voltage switchgear, motors, insulators, bushings, power capacitors, circuit breakers, busbars, and CT/PT equipment. It is presented for field, acceptance, preventive, and maintenance testing.

The system uses computer control with an LCD display. The screen presents test data, operating status, and procedural steps in real time, and test results can be printed. Listed protection functions include overcurrent, overvoltage, IPM, and discharge protection.

The equipment is described as using dry-type epoxy-cast construction, with low temperature rise at rated load, high mechanical strength, and good insulation capability. Depending on the selected configuration, the system can use a 220 V or 380 V single-phase input supply.

A common system configuration includes an AC power source, exciting transformer, one or more reactors, and a capacitive voltage divider. Optional reactor arrangements allow the system voltage and capacity to be adapted to different test duties.

Listed models include SXBP-27/54/108-108, SXBP-54/108/216-216, SXBP-65/130/260-520, SXBP-45/90/135/180/270-270, and SXBP18/36/54. Their stated common test-frequency range is 20–300 Hz, while component ratings and supported test objects vary by model.

Model selection should be based on the required test voltage, test-object capacitance, frequency range, and duty. For example, the model notation may identify the voltage of one reactor, the voltage achieved with reactors connected in series, and the total system capacity.

Additional reactors may be used to increase capacity, while additional voltage-divider equipment may be required to increase the test voltage. Before procurement, the buyer should request an engineered configuration for the exact asset being tested.

Confirm the required withstand voltage, cable conductor size and length, transformer or generator rating, GIS interval count, reactor connection, divider rating, input-power availability, and applicable test procedure.

Buyers should also confirm the final dimensions, weight, included accessories, calibration documentation, protection logic, printing arrangement, commissioning scope, training, delivery schedule, and written warranty terms for the quoted configuration.