1625
Users Manual
Accordingly, these equivalent resistances are displayed as:
REi = U meas
li
Therefore the earthing resistance RE of the pylon is determined as a parallel circuit of the individual equivalent resistances:
RE | = |
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1 | + | 1 | + | 1 | + | 1 | |||
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| RE1 |
| R E 2 |
| RE3 |
| RE 4 | |
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| 1625 EARTH / GROUND TESTER |
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| H/C2 |
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| DISPLAY |
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| MENU |
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| AC |
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| Earth/Ground Resistance 300 k | Resistance |
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| 300 k DC Low Resistance 3k |
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| RA | R | R |
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| 4 POLE | 2 POLE |
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| 2 POLE |
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| 3 POLE |
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| 4 POLE |
| 4 POLE |
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| CHANGE |
| ES/P1 |
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| ITEM 3 POLE |
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| OFF |
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| SELECT |
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4 Pole
| Auxiliary |
Probe | earth |
electrode |
>20 m |
| >20 m |
edw016.eps
Figure 13. Measuring the Earthing Resistance without Disengaging the
Overhead Earth Wire
1.Turn central rotary switch to position “ARE 3pole" or ARE 4pole". The instrument is to be wired according to picture and notices given on the display.
A flashing of the sockets symbols EFGHor B, points to an incorrect or incomplete connection of the measuring lead.
2.Apply current transformer to the pylon stub. Make sure that the trans- formation ratio set on the instrument corresponds to the current trans- former used. Change settings if necessary (see “Changing of All Data Settings with Personalised CODE”)
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