11
Test current selection (normally only to 5A, 20A needs to be customized)
5) Grounding resistance wire length: the wire length when testing grounding resistance,
generally choose 20 meters.
6) Design short-circuit current: The current when a single-phase short-circuit occurs
during the design of the substation. Generally 1kA.
7) Under the boot interface (Figure 5), the red numbers are modified. For items such as
test frequency, you only need to use a touch screen pen or finger to click, and the
numeric keyboard will pop up and then modify. (Picture 9)
Figure 9
Red digital parameter modification interface
After filling in the numbers, press the OK key, the keyboard disappears, and the input
data is reflected in the input box.
After filling in the numbers and pressing the esc key, the keyboard disappears and
the entered data is invalid.
7.3. Ground network resistance test
In the boot interface (Figure 5), select the test mode for ground network test, and use a
touch screen pen or finger to click
Start the instrument test, and the test confirmation interface appears (Figure 10):
Summary of Contents for HZDW-DB
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