What Is The Difference Between On-load Voltage Regulation And No-load Voltage Regulation?

No-load voltage regulation requires power outage to be carried out, and the voltage regulation range is small. Although it reduces the power transmission time, it cannot meet the requirements of special power consumption.
On-load voltage regulation can automatically adjust the voltage according to the change of grid voltage, without power outage for voltage regulation, which is suitable for the power consumption needs of special customers.
What is the purpose of short-circuit test of Isolator switch transformer?
The purpose of short-circuit test on transformer is to measure the copper loss of transformer. During the test, the low-voltage winding is short-circuited, and voltage is applied on the high-voltage side to make the current reach the rated value. At this time, the copper loss of the transformer is equivalent to the copper loss of the rated load. The voltage applied on the primary side is called the short-circuit voltage of the transformer, and its percentage of the rated voltage is the impedance voltage of the transformer.