Current and Voltage Transformer

A transformer is a device used to proportionally convert high voltage or large current into standard low voltage or small current. It is mainly used to facilitate the standardization and miniaturization of measuring instruments, protective devices, and automatic control equipment.

Transformers are classified into two main types: voltage transformers and current transformers. Voltage transformers convert high voltages into standard low voltages (e.g., 100V), while current transformers convert large currents into standard small currents (e.g., 5A or 1A). This conversion simplifies the design and manufacturing of measuring and protection equipment, reduces insulation requirements, and ensures the safety of both equipment and personnel through electrical isolation.

1. Stable Proportionality

The primary function of a transformer is to transfer voltage or current from one circuit to another while maintaining a stable proportional ratio, ensuring the safe and reliable operation of the power system.

2. Good Frequency Response

Transformers operate effectively over a wide frequency range and have good frequency response characteristics, enabling accurate measurement and control in power systems.

3. High Precision:

Transformers offer high measurement accuracy, allowing for precise monitoring and control within narrow tolerances to support the stable operation of the power system.

4. High Voltage Resistance

Transformers can withstand high voltage surges, ensuring continued safety and stability in the power system.

5. Long Service Life

Transformers are highly durable, typically operating for more than 10 years, and are capable of functioning reliably in harsh environmental conditions.

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