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NB. MTO300, No Controller, PC required - WITHOUT Leads.
The Megger MTO300 DC winding resistance test set delivers full eight-terminal/six-winding resistance measurement capability. It is designed to save time by testing all six windings without having to disconnect and reconnect leads. The MTO300 can be controlled by an external PC or other Megger products with on-board computer such as the DELTA3000, DELTA4310, TTR330, and FRAX150.
Also, the simultaneous winding magnetisation (SWM) method gives fast and reliable measurements even on large transformers with delta configuration on the low voltage side. Additionally, the MTO300 leads are interchangeable with the Megger TTR300 series of three-phase turns ratio instruments which eliminates additional connecting time for turns ratio measurements.
FEATURES
Automated 8-terminal/6-winding measurement capability.
Simultaneous winding magnetisation.
Tests operation of on-load tap-changers.
Built-in auto-demagnetisation feature.
Automatic discharge.
Megger MTO300 Specifications
Resistance Measurement/Display
Current Range (A)
Resistance Range (Ω)
Resolution (Ω)
10 A
10 ?Ω to 0.2 Ω
0.000001
10 A
0.2 Ω to 2 Ω
0.0000
1 A
100 ?Ω to 2 Ω
0.00001
1 A
2 Ω to 20 Ω
0.001
100 mA
1 mΩ to 20 Ω
0.0001
100 mA
20 Ω to 200 Ω
0.01
10 mA
10 mΩ to 200 Ω
0.001
10 mA
200 Ω to 2000 Ω
0.1
Input
85 - 264 VAC, 47 - 63 Hz, 1500 VA.
User Selectable Current ranges
Up to: 10 mA / 100 mA / 1 A / 2.5 A / 5 A / 7.5 A / 10 A.
Open Circuit Voltage
Up to 40 V Dc.
Measurement Voltage
Up to 20 V Dc.
Max Power
2000 VA continuous.
Printer Interface
Via external PC.
PC Interface
Ethernet.
User Interface
PowerDB on external PC.
Environmental
Operating
14° F to 122° F (-10° C to 50° C).
Storage
-58° F to +158° F (-50° C to +70° C).
Relative Humidity
0-90% non-condensing.
Communication/Control Software
PowerDB Lite (PowerDB Pro, optional).
Safety/EMC/Vibration
Meets the requirements of IEC-1010-1, CE and ASTM D999.75.
Case
Ruggedised plastic case with removable lid and carrying strap.
Dimensions
8.5 H x 21.5 W x 13 D in (216 H x 546 W x 330 D mm).
Weight
29 lbs (13.1 kg).
Megger MTO300 warranty
One-year.
For more information on Megger MTO300 Transformer Ohmmeter Without Leads talk to Cuthbertson Laird Group
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