What Is The Reason For The Low Output Voltage Of The Constant Voltage Transformer?

The main reasons for the low output voltage of Constant Voltage Transformer(CVT) include incorrect transformer wiring, excessive load, transformer damage, low power supply voltage, and transformer core saturation.

‌Transformer wiring error‌: If the transformer is not properly wired, the output voltage may be low. You need to check the wiring of the transformer to ensure that each coil is properly connected.
‌Excessive load‌: When the load exceeds the rated capacity of the transformer, the output voltage will drop. This is because when the load increases, the current increases, and the line loss also increases, resulting in a decrease in the output voltage. At this time, you need to reduce the load or replace a transformer with a larger capacity.
‌Transformer damage‌: Problems such as internal coil short circuit and poor winding contact in the transformer may also cause the output voltage to be low. It is necessary to check whether the internal components of the transformer are damaged or aged, and replace the damaged components.
‌Power supply voltage is too low‌: If the power supply voltage is lower than the normal operating range of the transformer, the output voltage of the transformer will also decrease accordingly. It is necessary to check whether the input voltage meets the requirements and take measures to stabilize the input voltage.
‌Transformer core saturation‌: When the input voltage is too high, the transformer core may be saturated, resulting in a drop in output voltage. At this time, it is necessary to replace the input power supply or adjust the input voltage to avoid core saturation‌.

In summary, there are many reasons for the low output voltage of the constant voltage transformer, which need to be investigated and solved according to the specific situation.