sekundærspænding

Sekundærspænding refers to the voltage present in the secondary winding of a transformer. Transformers operate on the principle of electromagnetic induction, where a changing magnetic field in a primary coil induces a voltage in a secondary coil. The relationship between the primary voltage and the secondary voltage is determined by the turns ratio of the two coils. If the secondary coil has more turns than the primary coil, the transformer is a step-up transformer, and the secondary voltage will be higher than the primary voltage. Conversely, if the secondary coil has fewer turns, it is a step-down transformer, resulting in a lower secondary voltage. This voltage can be either alternating current (AC) or direct current (DC), depending on the type of transformer and its application. In AC circuits, the secondary voltage fluctuates with the same frequency as the primary voltage. The magnitude of the secondary voltage is crucial for matching voltage requirements in various electrical systems, from power distribution to electronic devices. It is a fundamental parameter in transformer design and operation.