Transformer ratio ratio tester With the continuous application of many new materials, there are many new types of transformer ratio testers, transformer testers have been fully developed, among which core type current transformers are dry, oil-immersed and Various types of gas-insulated structures adapt to the development needs of power construction. However, with the continuous increase of power transmission capacity, the continuous improvement of the voltage level of the power grid and the continuous improvement of protection requirements, the general core-type current transformer structure has gradually exposed weaknesses that are incompatible with it. It is difficult to use the narrow bands and other weaknesses. It is difficult to meet the needs of the development of a new generation of power system automation, power digital network and so on.

With the rapid development of transformer ratio tester technology, many advanced technology countries have turned their attention to the use of optical sensing technology and electronic methods to develop new transformer ratio testers. Electronic current transformers, referred to as photoelectric current transformers. The International Electrotechnical Association has released standards for electronic current transformers. The meaning of electronic transformers includes not only photoelectric transformers but also other voltage and current sensors that use electronic testing principles.

Transformers are divided into voltage transformers and current transformers. The main functions of the transformer ratio tester are as follows: The voltage and current information of a primary system is accurately transmitted to the secondary side related equipment; the high voltage and current of the primary system are transformed. For the secondary side of the low voltage (standard value), low current (standard value), the measurement, measuring instruments and relays and other devices standardization, miniaturization, and reduce the secondary equipment insulation requirements; the secondary side equipment and The secondary system is well separated from the primary system high-voltage equipment in electrical terms, thereby ensuring the safety of the secondary equipment and the human body.

Shanghai Miyuan Electric Co., Ltd. produces and sells the following products: ZGF DC high voltage generator, high voltage voice phasor, DC resistance tester, battery load tester, loop resistance tester, microcomputer relay protection tester, grounding resistance Tester, high-voltage wireless nuclear phase analyzer, high-voltage test transformer, DC single-arm double-arm bridge, DC high-voltage generator, tubular electric heater, dielectric oil dielectric strength tester, watch-type near-electricity alarm, zinc oxide arrester tester , transformer ratio tester, insulation resistance tester, high voltage megohmmeter, high voltage insulation mat, short circuit ground wire; portable dynamic balance measuring instrument, on-site dynamic balance measuring instrument, long-distance infrared thermometer, high-voltage insulating mat in the power distribution room , Transformer loss parameters intelligent tester, insulated boots gloves pressure test device, transformer characteristics integrated test bench, tie rod flow meter, ultra high voltage withstand tester, three-phase multi-phase volt ammeter, intelligent dielectric loss tester, Smart loop resistance tester, lightning counter calibrator, transformer on-load switch parameter tester, mine cable fault detector, oxygen Zinc arrester detector, immersed tubular electric heater, DC resistance meter, digital grounding resistance meter, portable digital vibration meter, infrared thermometer, frequency conversion series resonant test device, high current generator, vacuum oil filter manufacturer, Voltage tester, wireless high-voltage nuclear phase meter and so on.

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