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Model TWRM-10
Transformer Winding Resistance &
On-Load Tap Changer Test Set |
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Description |
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The TWRM-10
provides quick, simple, and accurate measurements of Transformer
Winding resistance in the shop or Field. The test set is designed
to measure winding resistance of highly inductive transformers
– including single phase, three phase, delta and wye
configurations. The test set is also equipped with two independent
displays which allow for the testing of both primary and secondary
windings simultaneously.
• Direct Reading – No Conversion scales required
• Overcomes high Inductance quickly
• Dual Display / Dual Channel
• High Accuracy measurements
• Inductive kick-back protection
• 4 1/2 Digit display for high resolution
• True 4 lead measuring system
• Tests Tap Changer operation
• Lightweight and Portable
• 1-year warranty
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RANGE |
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Nominal
(Ohms) |
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Resolution
(Ohms) |
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Max.
Display
(Ohms) |
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2
m
20 m
200 m
2
20
200
2000 |
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0.0001 m
0.001 m
0.01 m
0.0001
0.001
0.01
0.1 |
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1.9999 m
19.99 m
199.99 m
1.9999
19.999
199.99
1999.9 |
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| ACCURACY |
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±
0.5 % of reading, ± 5 counts at 10 A, 1 A, and 0.1
A ranges
± 1.5 % or reading, ± 5 counts at 10 mA range
± 2.5 % of reading, ± 5 counts for resistance
values above 200 Ω |
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Indicated
by all zeros |
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OVER-RANGE: |
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General |
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Power:
Displays:
Connections:
Operating Temp. Range:
Humidity Range:
Dimensions:
Weight: |
110 VAC ± 10 %,
60 Hz / 150 VA
Two 4 1/2 digit LCD showing 1999.9 at full scale
Reading rate is approx. one per second
Ch.1, Ch. 2, and Test current: Isolated high impedance inputs,
each with separate range controls
Power – IEC three terminal socket
0 to 50 °C
0 to 90 %, non-condensing
17.7 in. (45 cm) x 9.8 in. (25 cm) x 7.8 in. (20 cm)
26.4 lbs. (12 kg) |
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Standard Accessories |
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Current test lead
– Qty. 1, 15 m (49.2 ft)
Potential test leads – Qty. 2, 15 m (49.2 ft) each
Shorting lead – Qty. 1, 5 m (16.4 ft.)
Power cord – 6 ft.
Operation manual
Test Certificate |
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| SPECIFICATIONS ARE SUBJECT
TO IMPROVEMENT AT ANY TIME. |
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