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Jiangxi Chengming Electric Co., Ltd.
Dedicated to providing green and intelligent power equipment solutions for energy transformation.
Frequently Asked Questions
What is the difference between power transformers and instrument transformers?
Power transformers are used for step-up or step-down voltage conversion, primarily in power transmission and distribution. Instrument transformers are employed in circuits to measure voltage or current. Current transformers and voltage transformers are common representatives of instrument transformers.
What is magnetizing current?
The magnetizing current is the constant current drawn from the power source by a transformer to generate magnetic flux. For a given transformer, the magnetizing current remains constant regardless of the nature of the load it supplies. It stays constant from no-load to full-load conditions.
What is the rated voltage of a transformer?
The rated voltage (Ur) of a winding refers to the voltage specified to be applied between terminals of a tap-changing winding at the main tap position, or between terminals of a non-tap-changing winding, or the voltage induced during no-load operation (for three-winding transformers, this denotes the voltage between line terminals). The rated voltage of a transformer corresponds to the voltage level of the connected transmission and distribution lines. The rated voltage refers to line voltage and is expressed as an effective value.
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No. 5 Weiye Road, Chongren County Industrial Park, Fuzhou City, Jiangxi Province, China
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