The role of voltage transformer

Proportional relationship between the high-voltage is converted into a standard 100V or lower level of the secondary voltage, for protection, measurement, instrumentation devices. Meanwhile, the use of high voltage voltage transformer can be isolated from the electrical workers. air circuit breaker Although work is in accordance with the principle of electromagnetic induction device, but it's the electromagnetic structure of relations with the opposite compared to the current mcb circuit breaker. Voltage transformer secondary circuit is a high impedance circuit, by the size of the secondary current loop impedance. When the secondary power transformers decreases, the secondary current increases, so that one component of a current is automatically increased to satisfy the first and second side of the relationship between the electromagnetic balance. It can be said, is a voltage transformer is limited to the form of the structure and use of special transformers