in the magnetic fieldWater purifier transformerThe current-carrying conductor will bear the action of mechanical force, so when the current passes through the transformer winding, due to the influence of the current and leakage magnetic field, Electromagnetic mechanical force will be generated in the winding, and the size of the electromagnetic force is determined. Since the flux density of the leakage magnetic field is multiplied by the line current, we all know that the separation direction is determined by the left hand.
When the transformer is running under normal load, the force acting on the wire is relatively small, but when a sudden short circuit occurs, because the larger short-circuit current will be the rated current25To30Or bigger.
According to the formula, the electromagnetic force generated between the windings during a short circuit is proportional to the square of the short-circuit current, so the mechanical force during a short circuit is basically hundreds of times larger than that during a short circuit. The force during normal operation, the speed of the force is very high. Fast, short-circuiting cannot cut the circuit in such a short time.
In short, under the action of huge short-circuit electromagnetic force, the transformer factory may cause damage to many parts in the transformer winding. Therefore, when designing a transformer, the manufacturer also needs to study the short-circuit electromotive force of the transformer and the short circuit of the winding. In order to ensure the normal operation and use of the transformer, we need to consider the force of the transformer.
The above is the content collected by the small editor of Foshan Shunde Jingwei Electronic Appliance Co., Ltd. Please contact us if necessary. The company mainly supplies pressure cooker transformers, commercial electrical transformers, high and low frequency transformers, pin transformers, smoke machine transformers, disinfection cabinet transformers used in the fields of small household appliances, lamps, equipment, instruments and digital products. We have been following"Professional, quality, reputation" business philosophy, so the company's product quality is stable and reliable, cost-effective, has been accepted and affirmed by the majority of users.