Product Description
In the production process of semi-finished products and finished
products of power transformers, according to the preventive test
regulations of the ministry of power of the People's Republic of
China, the transformer in operation is required to be tested
regularly in turn ratio or voltage ratio before the newly installed
transformer is put into operation.
DC resistance of transformer windings is an essential test item
after transformer handover, overhaul and change of tap switch, as
well as an important test item after failure. DC resistance tester
is a rapid test equipment for DC resistance of transformers,
generators, motors and circuits.
Test Description
1. Connect the test line to the transformer, and all connect on the
high and low voltage sides.
2. Manually rotate the transformer tap to the first tap.
3. Select the first tap on the interface, and input the DC
resistance test parameters and transformation ratio test parameters
in the following parameters.
4. Click the test button to start the test.
5. All DC resistance and transformation ratio data of the first
automatic tapping of the system (including the resistance at the
low voltage side)
6. After the test, the system will give a sound to remind the test
personnel.
7. The tester selects the tap position of the transformer to the
second tap.
8. Select the second tap on the interface, and input the DC
resistance test parameters and transformation ratio test parameters
in the following parameters.
9. Click the test button to start the test
......
Until all test data of tapping are tested.
Technical Parameters
The measuring range is 0.9-10000.
Minimum resolution: 0.0001
Accuracy level: 0.2
Output Voltage: 160VAmbient temperature - 10 ~50
Environmental Humidity <85%RH
Supply of working power : AC220V ± 10%
The power supply frequency is 50 Hz ± 1 Hz
