The measurement of DC resistance is a test item in the manufacturing of inductive coils such as transformers, transformers, reactors, and electromagnetic operating mechanisms, which includes semi-finished and finished product factory testing, installation, handover testing, and preventive testing by power departments. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of inductive coils, and eliminate hidden dangers in device operation.
It can be used to check single-phase defects in transformers or in situations where there is no three-phase electricity on site. The instrument can record data from three single-phase measurements and calculate the transformer's no-load current, no-load loss, impedance voltage, and load loss based on different connection methods of the transformer
Can measure transformer short-circuit impedance, short-circuit reactance, three-phase impedance voltage
Can check the welding quality of the winding joints and whether there is a turn to turn short circuit in the winding, check whether the various positions of the voltage tap changer are in good contact, and whether the actual position of the tap changer matches the indicated position.
Variable frequency regulated power supply, step-up transformer, and SF6 high stability standard capacitor
Testing items for semi-finished and finished products in transformer manufacturing, factory testing, installation, handover testing, and preventive testing by the power department.
Transformer low voltage short-circuit impedance tester, suitable for low voltage load impedance testing of power transformers (single-phase or three-phase) during factory, major maintenance, pre testing, and handover testing.
It can accurately measure a series of power frequency parameters such as capacity, type, no-load current, no-load loss, short-circuit (load) loss, impedance voltage, etc. of various transformers.
This instrument is suitable for measuring the TG δ and capacitance of high-voltage electrical equipment in workshops, laboratories, and research institutions; Test the loss of insulating oil.
Non destructive testing equipment for internal faults in transformers, suitable for detecting internal structural faults in 63kV to 500kV power transformers.
Can be used for transformer energy efficiency level testing, transformer DC resistance testing, transformer ratio group testing, transformer insulation resistance testing
It plays an important role in protecting transformers from the impact of excitation inrush current, ensuring safe operation, and prolonging transformer life.
DZD3000A Transformer Demagnetization Instrument is a specialized equipment for eliminating residual magnetism in large transformers and other electromagnetic equipment
Suitable for eliminating residual magnetism before power transformers and mutual inductors are put into operation; Especially for large capacity transformers with voltage levels of 110kV and above.
Suitable for eliminating residual magnetism before power transformers and mutual inductors are put into operation; Especially for large capacity transformers with voltage levels of 110kV and above
