Voltage transformer

electric transformer is a transformer with a core. It mainly consists of a secondary coil, the core and insulation components. When applying a voltage on a winding U1

when the iron core generates a magnetic flux φ, according to the law of electromagnetic induction, it is generated in the secondary winding

A secondary voltage U2. Change the primary or secondary winding turns, can produce different primary Voltage stabilizer and the secondary voltage ratio, which can be composed of

different ratios voltage transformers. Voltage transformer to convert high voltage to low voltage in proportion, ie 100V, a voltage transformer

Secondary side connected to the primary system, the secondary side connected measuring instruments, relay, etc.; mainly electromagnetic type (capacitor voltage

transformers are widely used), and another non-magnetic, such as electronics, photoelectric.
Plant and substation high voltage electrical energy measuring device, and a large user of electricity metering devices, related to the generation, transmission, supply

and multi-user interests. To ensure accurate measurement, you must follow JJG1021-2007 large-scale electronic circuits and DL/T448-2000

Design and compliance with the relevant national regulations developed. It solves the field test voltage transformers work intensity, complicated operation problems,

while the products are reliable and powerful.
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Transformer field tester