• Automated 8-terminal/6-winding measurement capability
• Simultaneous winding magnetization
• Tests operation of on-load tap-changers
• Built-in auto-demagnetization feature
• Automatic discharge
• Power DB software (MTO330)

The MTO 3xx series delivers full eight-terminal/six-winding resistance measurement capability. It is designed to save time for the user by testing all normal 6 windings without having to disconnect and reconnect leads during testing.

The MTO3xx series also shares the Megger TTR3xx series lead set. Users who test both turns ratio and winding resistance can save time and money since only one lead set is needed to connect to the transformer.

Standard accessories

Transformer Ohmmeter 120/240 V, 50/60 Hz input MTO300

Transformer Ohmeter, with onboard computer, 120/240 V, 50/60 Hz input MTO330

Included Accessories

Ground lead, 15 ft (4.5 m) 4702-7

Canvas carrying bag 30915-211

AC power cord (IEC60320-C13 to US Standard) 17032

AC power cord (IEC60320-C13 to Schuko CEE 7/7) 17032-13

Quick start guide for MTO300 37178-1

Quick start guide for MTO330 37178-2

CAT5e patch cable 36798

Instruction manual ATVMMT0300

PowerDB Basic

USB to ethernet adapter (to connect PC to MTO300) 90001-541

Recommended options

Optional Accessories

USB portable thermal printer (120 V) 36493-1

USB portable thermal printer (230 V) 36494-1

Foam lined transit case 37009

PowerDB Pro software 1st machine license,

soft key DB1001

PowerDB Pro software 1st machine license,

USB dongle DB1001S

Remote hand switch 30915-220

Universal lead sets, compatible with Megger

TTR300 Series products (up to 10 A DC max)

3-phase shielded test lead set, X and H windings

60 ft (18 m) 36486-5

30 ft (9 m) 36486-6

33 ft (10 m) extension 36486-9

More products MEGGER

EARTH LEAKAGE CLAMPMETER MEGGER - DCM305E

• 0.001 mA resolution
•
• Up to 100 A range for standard AC current measurements
• TRMS reading
• Low pass filter to aid stability of readings

MEGGER TPT420 VOLTAGE TESTER CATIV 1000V

• CAT IV/1000 V
• IP64 Rated
• 12 to 1000 V AC
• 12 to 1500 V DC
• Continuity test function with visual and acoustic indication
• Voltage indication with no batteries
• Single-pole voltage test
• Phase rotation indication
• Integrated torch light

MEGGER TTR100 TRANSFORMER TURNS RATIO METER, PHASE DISPLACEMENT, VECTOR GROUP, POLARITY

• Tests turns ratio, phase displacement, excitation current, vector group, winding resistance and polarity
• Fully automatic; fast; easy-to-use; handheld; robust; lightweight
• Battery powered with power-saving and shutdown function
• Alphanumeric keyboard
• RS232 for data transfer and printing
• Stores 200 test results and 100 user-defined transformer test settings

MEGGER FREJA 306 PROGRAMMA RELAY TESTER CF-29091

• current outputs, higher amps (3 x 15 A + 3 x 35 A), VA or compliance voltage.
• test differential relays with 6 currents, or virtually any single or 3-phase relay
• For secondary testing of protection relays
• Can be used stand-alone or with a PC
• Flexble, can test many relay types
• Lightweight and portable
• Greatest possible precision

MEGGER SMRT410 RELAY TEST SYSTEM

• Small, rugged, lightweight and powerful
• Operates with or without a computer
• Intuitive manual operation with Smart Touch View Interface
• High current, high power output (60 Amps/300 VA rms) per phase
• Flexible output design provides up to 4-phase voltage and up to 10-phase current
• Network interface provides IEC 61850 test capabilities
• Fully automated testing using AVTS software

MEGGER DLRO2X PORTABLE CONPACT 2A MICROHMMETER

• The DLRO2X is a robust 2 A low resistance ohmmeter
• designed for precise, reliable measurements across various applications, including industrial, railway, and avionic sectors

MEGGER DLRO600 DUCTER MICRO-OHMMETER 600A

• Small and weighs less than 33 lbs (15 kg)
• Test currents from 10 A to 600 A dc
• 0.1 µohms best resolution
• On board memory for up to 300 test results and notes
• RS232 port to download stored results or for real time output to a printer
• Supplied complete with 16.4 ft (5 m) test leads and download software

MEGGER TORKEL 820 BS-49092 TELECOM BATTERY LOAD DISCHARGE TESTER PROGRAMMA

• Combines efficiency with portability
• Batteries can be tested "in service"
• Discharge 24 and 48 V batteries at a current of 270 A
• 12 V batteries at 135 A
• Two or more TORKEL 820 units and/or extra load units TXL, can be linked together if you need higher current.

MEGGER IDAX-300 IDAX-350 INSULATION DIAGNOSTIC ANALYZER, TAN DELTA, POWER FACTOR

• Automated measurement and analysis of moisture content, tan delta/power factor and oil conductivity
• Individual temperature correction (ITC) of tan delta/power factor and oil conductivity
• 40% faster measurements with the new IDAX 5.0 SW
• Reliable measurements in high-interference environments
• Multi-function test set for transformer measurements

MEGGER DELTA4310 INSULATION POWER & DISSIPATION FACTOR TEST SET DELTA 4310

• fully automatic 12 kV insulation power factor / dissipation factor (tan delta) test set
• Voltage: 25 V to 12 kV, 1 V resolution
• Current : 0 to 5 Amps, 0.1 µA maximum resolution
• Capacitance: 0 to 100 µF, 0.01 pF maximum resolution
• Inductance: 6 H to 10 MH, 0.1 mH maximum resolution
• Power factor PF : 0-100% (0-1), 0.001% maximum resolution
• Dissipation factor DF : 0-100 (0-10,000%), 0.001% maximum resolution
• Watt Loss: 0 to 2 kW
• Automatic and manual operation
• Accurate and repeatable measurement results with high noise suppression
• Lightweight, rugged two-piece design