Megger OTS 60AF/2, User Manual

Page: 23 / 104

Withstand test ‘B’
Follow the procedure for Withstand test ‘A’, but note that after the test voltage has been maintained for 1
minute it will continue to rise at 2 kV/s to the breakdown point or to the maximum value, before it is
automatically removed.
BS5730a test
1. With reference to BS 5730a, adjust and set the appropriate electrode gap of 2,5mm or 4,0mm.
2. From the main menu highlight and select BS5730a. The display will appear similar to figure 17.
3. Pressing MENU moves to the main menu. With reference to BS 5730a, select the appropriate
EQUIPMENT CATEGORY by pressing the left or centre key.
4. The display now changes to appear similar to figure 18. Press the left or centre key to select the
electrode gap setting of either 2,5mm or 4,0mm. Pressing QUIT returns to the previous sub
display.
5. The display will now change to show the correct withstand voltage together with the selected
electrode gap. Assuming that the 2,5mm key was operated, the display would appear similar to
figure 19.
Repeated pressing of the centre key marked STIR MODE changes the choice of stirring through
MAGNETIC, IMPELLER or NONE. Pressing QUIT returns to the previous sub menu.
Figure 17. BS5730a Equipment Category selection display screen.
Figure 18. BS5730a electrode gap selection display screen.
Figure 19. BS5730a Test start display screen.
23
BS 5730a: A, D
QUIT
2.5mm
4.0mm
SELECT GAP
BS 5730a: A, D
QUIT
VOLTAGE: 30kV
START STIR MODE
STIRRING: MAGNETIC
2.5
mm
?
mm
2.5
mm
?
mm
BS5730a:1979
SELECT
EQUIPMENT
CATEGORY
A, D
B, C, E, F
MENU