15 years of experience in sales of second-hand oscilloscope Chu enthusiasm http://www.cyx0769.com/products/ershoushebei.html selected high-precision measurements of active power can be more effective assistance for certain inter-turn short circuit judge miniature electronic transformers. In the micro-electronic transformer, since the number of turns (thousands of turns or more), fine diameter (enamelled wire diameter 0.1mm or less) in several turns to several tens of turns of the short-circuit situation, as compared with a normal transformer, multiplier test current times the pressure did not change significantly change the active power (short circuit 10 turns generally around 50% change), the experimental results show that, under the inter-turn short circuit, the transformer increases the power factor, active power increases, it can be as the basis for a short circuit between the micro-electronic transformer turns judged more accurately judge the performance of the transformer. Test report data below 5W small transformer short circuit may indicate that the primary problem. About Chu enthusiasm Electronic Instruments, (www.cyx0769.com) was founded in 1999, Shenzhen Branch was established in 2004, professional management of maintenance of all types of electronic machine testing, instrumentation, electronics, electrical equipment, measuring and testing equipment, environmental test Has a strong technical foundation of professional surveying support and maintenance personnel, senior engineer of the department have many years engaged in various types of electronic measuring instruments machine maintenance of rich experience, they are familiar with thousands of domestic and international instrument Institute and the original manufacturer of the device 10,000 species of measuring instruments. Chu enthusiasm, set up 10 years, the spirit of mutual benefit and development, resource sharing, service first principle, relying on the huge market of Guangdong Pearl River Delta, partners have a number of cities throughout the country and overseas, while Shenzhen, Dongguan and Hong Kong as the main three, the world famous radiation equipment manufacturers and dealers, to establish a relatively stable first-hand and very professional information resources and to goods supply system, particularly the United States Agilent, Tektronix, international brand-name equipment sales maintenance Fluke, Keithley, Teledyne LeCroy, Rohde & Schwarz, Kikusui, Hioki, Advantest, Anritsu, Yokogawa and other advantages more significant.