MTO300 series Automated Six-Winding Transfomer Ohmmeter
The MTO300 series of automated six-winding transformer ohmmeters delivers full eight-terminal/six-winding resistance measurement capability. It's designed to save you time by testing all normal six windings without having to disconnect and reconnect leads during testing. Also, the simultaneous winding magnetization (SWM) method gives fast and reliable measurements, even on large transformers with delta configuration on the low voltage side.
Additionally, the MTO300 series leads are interchangeable with the Megger TTR300 series of three-phase turns ratio instruments, eliminating additional connecting time for turns ratio measurements. So, if you need to test both turns ratio and winding resistance, you can save time and money since only one lead set is needed to connect to the transformer.
The series consists of the MTO300 and the MTO330A:
Input
85-264 VAC, 47-63 Hz, 720 VA
Output
User Selectable Current Ranges:10 mA, 100 mA, 1 A, 2.5 A, 5.0 A, 7.5 A, 10 A
Open Circuit Test Voltage: up to 40 V dc
Measurement Voltage: up to 20 V dc
Max Power: 200 VA continuous
Resistance Measurement/Display
Resistance ranges:
Current Range | Resistance Range | Resolution
10 A | 10 μΩ to 0.2 Ω | 0.000001Ω
10 A | 0.2 Ω to 2 Ω | 0.0001Ω
1 A | 100 mμΩ to 2 Ω | 0.00001Ω
1 A | 2Ω to 20 Ω | 0.001Ω
100mA | 1 mΩ to 20 Ω | 0.0001Ω
100mA | 20 Ω to 200 Ω | 0.01Ω
10 mA | 10 mΩ to 200 Ω | 0.001Ω
10 mA | 200 Ω to 2000 Ω | 0.1Ω
Accuracy: +/-0.25% Range +/-0.25% Rdg
Resolution: Up to 4 digits
Printer Interface
MTO300: Via external PC
MTO330A: USB
PC Interface
MTO300: Ethernet
MTO330A: Ethernet for remote control; USB flash drive for storage and transfer of test results
User Interface
MTO300: PowerDB on external PC
MTO330A: Provided hardware
TRITAN ENGINEERING SDN. BHD.
No. 28, Jalan Permas 9/13,
Bandar Baru Permas Jaya,
81750 Masai, Johor, Malaysia
Tel: +607-388 2010
Fax: +607-388 4316
Email: koh1@tritan.com.my
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