Metrel
MI 3144 ST EURO-Z 800V Mulitifunction Tester

Metrel MI 3144 Standard EURO-Z 800V Multifunction Tester

The MI 3144 Euro Z 800 V Multifunction Tester is designed to measure the effectiveness of automatic trip out protection in case of faults in transformers and other high voltage equipment. Perfect for in-field use as is a portable battery-powered unit (mains powered also for when you are back at base).

This unit offers excellent IP protection: IP65 (case closed), IP54 (case opened).

It is ideal for testing in industrial setting due to its high precision line and loop impedance measurements on AC and DC circuits, high current dR 300A loop and line measurements for testing of partial currents and partial voltage drops.

The Metrel MI 3144 also supports contact voltage measurements, ELR electrical leakage relay testing with fault current injection, trip-out time measurement and DC source, line, battery and accumulator measurements.

The Metrel MI 3144 can be controlled via an Android app A 1522 aMESM, MI 3152 EurotestXC, MI 3152H EurotestXC 2.5kV, MI 3155 EurotestXD or MI 3325 MultiServicerXD.

▶ Video: Metrel Mi 3144 - Substation, High Current Ground

Metrel MI 3144 Key Features:

• High precision 4-wire 300 A Z Line and Z Loop Impedance Tester
• High range impedance measurements in 800 V / 16 ... 420 Hz AC networks
• DC source & line resistance measurements in 3 ... 260 V DC networks
• High current dR 300 A 4-wire Partial Voltage drops and Current‘s Path Resistances
• Earth Leakage Relay (ELR) trip-out testing time and current
• ELR supported types AC, A, B
• Ground fault analysis with Contact, Touch and Step voltage
• Floating voltmeter for partial contact results
• One-clamp high current grounding method with clamps (flex & iron)
• Selectable test load (16.6 % to 100 %)
• Improved thermal performance
• Portable battery (Li-ion) or mains powered test instrument
• IP protection: IP65 (case closed), IP54 (case opened)
• CAT IV 600 V (3000 m) safety category
• Bluetooth communication
• Black box design (remote-controlled via an Android device)

Metrel MI 3144 Applications:

• Live Power Transformer Hi Precision 4-wire 300 A Z Line / Loop Impedance testing
• Partial Voltage Drops and Partial Clamp Current’s Path resistance measurements
• Airports High Frequency Band 16... 420 Hz Installation Impedances testing
• DC Networks’ and Power Sources’ Line and Loop Resistances
• Flex & iron one-clamp high current dR 300 A Grounding method for Lightning systems
• High Current dR 300 A Integrity of Grounding; system with Flex and Iron One-Clamp method
• ELR (MRCD) trip-out Current and trip-out time testing
• Earth Potentials by method of measuring Step, Touch and Transfer voltages
• Automatic trip-out protection evaluation in case of faults in transformers, generators, turbines, contactors, distribution boards and switchyards whenever energetic loads and sources of protection exceed 200 A
• Power transformer and motor winding measurement
• High accuracy battery resistance testing
• Ground grid integrity testing by measuring the resistance between two risers
• Contact voltage measurement

What comes with the Metrel MI 3144 Standard?

• Instrument MI 3144 Euro Z 800 V
• Mains cable
• RS232-PS/2 cable
• Test lead 5 m, black, 2 pcs
• Test lead 5 m, red, 2.5 mm², 2 pcs
• Test lead 50 m, red, 2.5 mm²*
• Test lead 20 m, black
• Test lead 50 m, green*
• Large Kelvin test clip, 2 pcs
• Crocodile clip, black, 2 pcs
• Crocodile clip, red, 2 pcs
• Crocodile clip, green
• Test probe, black, 2 pcs
• Test probe, red , 2 pcs
• G clamp
• Human body resistance probe
• Test rod, 2 pcs
• Step voltage plates, 2 pcs
• Metrel aMESM Android PRO P 1102-AND licence key integrated in instrument
• Short instruction manual
• Calibration certificate
• Protective bag for accessories (mounted on the case)
• Soft carrying bag*

(* Replaced by test leads on a cable reel in MI 3144 EU set)

What extra/replacements do you get with Metrel MI 3144 EURO?

• Test lead 5 m, green
• Test lead on a cable reel, 75 m, red, 2.5 mm2, green
• Professional current earth spike, 42 cm
• 1-phase flexible current clamp 3000 / 300 / 30 A / 1 V (A 1609) with 5m current clamp extension cable (A 1648)
• Metrel aMESM Android PRO P 1102-AND licence key integrated in instrument
• Jumbo case with extension cable reel mount