Functional Characteristics
1、Lithium battery power supply or 100-240V AC power supply is self-adaptive. After one charge, more than 100 transformers can be continuously tested in the ratio group. The test process is simple and convenient.
2、It has the function of blind measurement, that is, to perform variable ratio and group test when there is no connection between high and low voltage.
3、Based on the test of conventional transformer, Z-type transformer and PT sample, the polarity test function of CT variable ratio is added, and the application field is wider
4、Wide range and high accuracy, the variable ratio measurement range can reach 10,000, and the test accuracy can be guaranteed 0.3% when the maximum value is 10,000.
5、It has perfect protection functions such as reverse connection protection and output short circuit protection.
6、5.6-inch super industrial high-brightness color LCD screen, still visible under strong sunlight.
7、Equipped with external printer, facilitate data printing
8、It can be stored locally and on USB memory.
Matters Needing Attention
● For transformers with multiple taps, the input of rated high and low voltage voltage, tap spacing and rated gear is to enable the test results to automatically calculate the error value and tap switch location.
● 19 archives of transformer on-load tap-changer is, if the 9, 10 and 11 are the same values, instrument input rated tap should be input when 9, at this time 12 points to a later, instrument display tapping position is smaller than actual position 2.
● Three-phase transformer variable than the plate of refers to the ratio of the different voltage winding of line voltage, therefore, the transformer in different connection mode, its strain ratio and the number of turns than to have the following relations: the primary and secondary side of the connection of the same voltage of three-phase transformer ratio is equal to the number of turns ratio; Primary side and secondary side of the connection is not at the same time, Y - d wiring of turns ratio is equal to the variable ratio, divided by the square root of - Y connection of turns ratio is equal to the ratio is multiplied by the square root of .
