Transformer Test Equipment

1. The transformer DC resistance tester is a crucial testing tool used for various purposes in transformer manufacturing. It serves as a necessary test item for semi-finished products, finished products in factory testing, installation, overhaul, tap changer replacement, handover tests, and preventive tests conducted by power departments.

2. This Transformer DC Resistance Tester performs several critical functions, including checking the quality of welding joints in the winding and identifying any inter-turn short circuits within the winding. It also assesses the integrity of the contact points in the voltage tap changer, verifies the alignment of the tap changer's actual position with the indicated position, inspects for broken connections in the outgoing line, and identifies any broken strands in the parallel winding of multiple wires.

The RDZR-10A transformer DC resistance tester is a necessary test item for semi-finished product, finished product factory test, installation, overhaul, change of tap changer, handover test and preventive test of power department in transformer manufacturing.
Our Transformer dc resistance test instrument can check the welding quality of the winding joint and whether there is inter turn short circuit in the winding, whether the contact of each position of the voltage tap changer is good, whether the actual position of the tap changer is consistent with the indicated position, whether the outgoing line is broken, and whether there is broken strand in the parallel winding of multiple wires. In order to meet the needs of fast measurement of transformer DC resistance, our company developed RDZR-10A DC resistance tester.
The Transformer dc resistance tester adopts new power supply technology, which has the characteristics of small volume, light weight, large output current, good repeatability, strong anti-interference ability, perfect protection function and so on. The whole dc resistance test equipment is controlled by high-speed single-chip microcomputer, with high degree of automation, automatic discharge and discharge alarm function. The instrument has the advantages of high precision and easy operation, and can realize the fast measurement of transformer direct resistance.

RDB-IIH portable transformer turn ratio tester overcomes the shortcomings of traditional ratio bridge test, which is easy to operate and intuitive. It adopts three-phase precision inverter power supply, and has fast test and high accuracy.

The anti-interference pilot frequency dielectric loss tester is a high-precision instrument for testing the dielectric loss tangent and capacitance of various high-voltage power equipment in power plant, substation and other field or laboratory.
The anti-interference dielectric loss tester instrument is an integrated structure with built-in dielectric loss test bridge, variable frequency voltage regulating power supply, step-up transformer and SF6 high stability standard capacitor. The test high-voltage source is generated by the inverter inside the instrument, which is used to test the tested object after boosting by the transformer. The frequency can be 45Hz, 55Hz, 55Hz, 65Hz, 47.5 or 52.5Hz. The digital notch technology avoids the interference of power frequency electric field on the test, and fundamentally solves the problem of accurate measurement under the interference of strong electric field. At the same time, Capacitance&Dissipation Factor Test Set is suitable for the situation of power supply detection by generator after all power failure.

In the production process of semi-finished and finished power transformers, before the newly installed transformers are put into operation and according to the preventive test regulations, it is required to test the turn ratio or voltage ratio of the running transformers, so as to check the correctness of the turn ratio of transformers, the condition of tap changer, whether the transformers are short circuited between turns, and whether the transformers can operate in parallel.
The traditional bridge reading is not intuitive, so the conversion can only be carried out phase by phase. RDB- II transformer ratio tester overcomes the shortcomings of traditional ratio bridge test, which is easy to operate and intuitive. TTR tester adopts three-phase precision inverter power supply, and has fast test and high accuracy.

The transformer DC resistance tester is a necessary test item for semi-finished product, finished product factory test, installation, overhaul, change of tap changer, handover test and preventive test of power department in transformer manufacturing. The Dual-channel DC Resistance Tester can check the welding quality of the winding joint and whether there is inter turn short circuit in the winding, whether the contact of each position of the voltage tap changer is good, whether the actual position of the tap changer is consistent with the indicated position, whether the outgoing line is broken, and whether there is broken strand in the parallel winding of multiple wires. In order to meet the needs of fast measurement of transformer DC resistance, our company developed RDZR-10A DC resistance tester. The Transformer DC Resistance Tester adopts new power supply technology, which has the characteristics of small volume, light weight, large output current, good repeatability, strong anti-interference ability, perfect protection function and so on.
The whole dc resistance meter is controlled by high-speed single-chip microcomputer, with high degree of automation, automatic discharge and discharge alarm function. The DC Resistance Analyzer has the advantages of high precision and easy operation, and can realize the fast measurement of transformer direct resistance

The DC resistance test of transformers is a must-test item for semi-finished products, finished products factory test, installation, handover test and preventive test of power department in transformer manufacturing. Dual-channel DC Resistance Tester can effectively discover whether there are manufacturing defects such as looseness, missing stocks, wire breakage, etc. in the selection, welding, and connection of the transformer coil and hidden dangers after operation. In order to quickly measure the DC resistance of the transformer, the 2 channel dc resistance tester uses a new power supply technology. The DC Resistance Analyzer has the characteristics of small size, light weight and large output current.
The whole Transformer DC Resistance Tester is controlled by a single-chip microcomputer, which automatically completes the functions of self-inspection, data processing, and display, and has the functions of automatic discharge and discharge indication. The Dual-channel DC Resistance Tester has high test accuracy and simple operation, which can realize the rapid measurement of transformer direct resistance. RDZR-5AS Dual-channel DC Resistance Tester is designed for temperature rise measurement of three-core five-column large transformers. The charging and measuring speed is fast, which can meet the time requirements of the transformer temperature rise test. Dual-channel measurement, real-time sampling, and printout.

In the production process of semi-finished and finished power transformers, before the newly installed transformers are put into operation, it is required to test the turn ratio or voltage ratio of the running transformers, so as to check the correctness of the turn ratio of transformers, the condition of tap changer, whether the transformers are short circuited between turns, and whether the transformers can operate in parallel. The traditional bridge reading is not intuitive, so the conversion can only be carried out phase by phase.
RDB-II transformer turn ratio tester overcomes the shortcomings of traditional ratio bridge test, which is easy to operate and intuitive. The TTR adopts three-phase precision inverter power supply, and has fast test and high accuracy

The RDKC-2000 transformer on-load tap-changer is the only moving part connected to the transformer circuit. Therefore, the detection of the on-load tap-changer is becoming more and more important. In the "power equipment transfer and preventive test procedures", asked to check the on-load tap-changer action sequence, measurement switching time. The instrument is mainly used to measure the transformer on-load tap-changer transition waveform, transition time, the instantaneous transition resistance, three-phase synchronization and so on.
The instrument is highly intelligent, menu prompts, simple operation. Instrument small size, light weight, anti-interference ability, greatly reducing the labor intensity of the site staff, is the power supply units, transformer manufacturing industry to ensure safe production, improve product quality ideal instrument.