Model 5895 transformer
Micro-Ohmmeter
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Type 5895 Micro Ohmmeter has been specifically
designed for the fast measurement of the resistance of large
transformers. It is equally suitable for the measurement
of any resistance where a large amount of inductance is
also present. An integral timer and printer are also incorporated
to enable precise readings to be recorded at exact and programmed
time intervals. Whilst being practical in use the instrument
also has safety features to protect both the operator and
the instrument from the hazards associated with this type
of measurement.
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Speed of Measurement
Stable accurate measurements can be achieved
in a fraction of the time required than when using more
traditional bridge methods. For an average size distribution
transformer the resistance reading is available within 10
seconds.
Typical Reading Times
| 11KV,
220 KVA Transformer |
10
Seconds |
| 132 KV, 240
MVA Transformer |
40 Seconds |
| 400KV,
220KVA Transformer |
100
Seconds |
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| Technical
Specification: |
| Range |
Full
Scale |
Resolution
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Test
Current |
Accuracy
|
| 100 Ohm |
180.00 Ohm |
10 mOhm |
0.1 Amp |
0.1% |
| 10 Ohm |
18.000 Ohm |
1.0 mOhm |
0.5 Amp |
0.1% |
| 1 Ohm |
1.8000 Ohm |
0.1 mOhm |
1.0 Amp |
0.1%
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| 100 mOhm |
180.00 mOhm |
10 µOhm |
5.0 Amp |
0.1% |
| 10 mOhm |
18.000 mOhm |
1 µOhm |
5.0 Amp |
0.1% |
| 10 mOhm |
1.8000 mOhm |
0.1 µOhm |
10 Amp |
0.2% |
| Supply |
110/120V
50/60 Hz |
| VA
Rating |
500 VA |
| Diensions |
460 x
460 x 150 mm |
| Net
Weight |
16.5 kg |
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