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Gossen Metrawatt PROFITEST MTECH plus Manual

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4 GMC-I Messtechnik GmbH
Table of Contents Page Page
1 Scope of delivery ............................................................. 5
2 Applications ..................................................................... 5
2.1 Using Cable Sets and Test Probes ...............................................5
2.2 Overview of Features Included
with PROFITEST MASTER & SECULIFE IP Device Variants ..........6
3 Safety Features and Precautions ..................................... 6
4 Initial Start-Up .................................................................. 7
4.1 Preparation for use ......................................................................7
4.2 Installing or Replacing the Battery Pack .....................................7
4.3 Switching the Instrument On/Off .................................................7
4.4 Battery Test .................................................................................7
4.5 Charging the Battery Pack in the Tester .....................................7
4.6 Device Settings ...........................................................................8
5 General Notes ................................................................ 13
5.1 Connecting the Instrument ........................................................13
5.2 Automatic Settings, Monitoring and Shut-Off ...........................13
5.3 Measurement Value Display and Memory .................................13
5.4 Testing Earthing Contact Sockets for Correct Connection ........13
5.5 Help Function ............................................................................14
5.6 Setting Parameters or Limit Values using RCD Measurement as an
Example .....................................................................................14
5.7 Freely Selectable Parameter Settings or Limit Values ..............15
5.8 2-Pole Measurement with Fast or Semiautomatic Polarity Reversal ... 15
6 Measuring Voltage and Frequency ................................ 16
6.1 Single-Phase Measurement ......................................................16
6.1.1 Voltage Between L and N (U
L-N
),
L and PE
(U
L-PE
) a
nd N and PE
(U
N-PE
)
with Country-Specific Plug Insert, e.g. SCHUKO .............................16
6.1.2 Voltage between L – PE, N – PE and L – L with 2-Pole Adapter Connection 16
6.2 3-Phase Measurement (line-to-line voltage) and Phase Sequence 17
7
Testing RCDs .......................................................................17
7.1 Measuring Contact Voltage (with reference to nominal residual
current) with
1
/
3
Nominal Residual Current and Tripping Test with
Nominal Residual Current .........................................................18
7.2
Special Testing for Systems and RCCBs .........................................20
7.2.1 Testing Systems and RCCBs with Rising Residual Current (AC) for Type
AC, A/F, B/B+ and EV RCDs .........................................................20
7.2.2 Testing Systems and RCCBs with Rising Residual Current (AC) for Type
B/B+ and EV RCDs (nur MTECH+, MXTRA & SECULIFE IP) ............20
7.2.3 Testing RCCBS with 5 I
N .............................................................21
7.2.4 Testing of RCCBs which are Suited for
Pulsating DC Residual Current ......................................................21
7.3 Testing for Special RCDs ...........................................................22
7.3.1 System, Type RCD-S Selective RCCBs ..........................................22
7.3.2 PRCDs with Non-Linear Type PRCD-K Elements ............................22
7.3.3 SRCD, PRCD-S (SCHUKOMAT, SIDOS or comparable) ....................23
7.3.4 Type G or R RCCB .......................................................................24
7.4 Testing Residual Current Circuit Breakers in TN-S Systems .....25
7.5 Testing of RCD Protection in IT Systems with High Cable
Capacitance (e.g. in Norway) ....................................................25
8 Testing of Breaking Requirements
Overcurrent Protective Devices,
Measurement of Loop Impedance and
Determination of Short-Circuit Current
(functions Z
L-PE
and I
K
) ................................................. 26
8.1 Measurements with Suppression of RCD Tripping ....................27
8.1.1 Measurement with Positive Half-Waves (only MTECH+/MXTRA/
SECULIFE IP) ...............................................................................27
8.2 Evaluation of Measured Values .................................................27
8.3
Settings for Short-circuit current Calculation – Parameter I
K
........28
9 Measuring Line Impedance (Z
L-N
function) ................... 28
10 Earthing Resistance Measurement (R
E
function) ........... 30
10.1 Earthing Resistance Measurement – Mains Operated ..............31
10.2 Earthing Resistance Measurement – Battery Powered
(only MPRO & MXTRA) ...............................................................31
10.3 Earthing Resistance, Mains Powered – 2-Pole Measurement with 2-
Pole Adapter or Country-Specific Plug (Schuko) without Probe ... 32
10.4 Earthing Resistance Measurement, Mains Powered – 3-Pole Me-
asurement: 2-Pole Adapter with Probe ....................................33
10.5 Earthing Resistance Measurement, Mains Powered – Measu-
rement of Earth Electrode Voltage (U
E
function) ......................34
10.6 Earthing Resistance Measurement, Mains Powered – Selective
Earthing Resistance Measurement with Current Clamp Sensor as
Accessory ..................................................................................35
10.7 Earthing Resistance Measurement, Battery Operated – 3-Pole
(only MPRO & MXTRA) ...............................................................37
10.8 Earthing Resistance Measurement, Battery Operated – 4-Pole
(only MPRO & MXTRA) ...............................................................38
10.9 Earthing Resistance Measurement, Battery Operated – Selective
(4-pole) with Current Clamp Sensor and PRO-RE Measuring Adap-
ter as Accessory (only MPRO & MXTRA) ...................................40
10.10 Earthing Resistance Measurement, Battery Powered – Ground Loop
Measurement (with current clamp sensor and transformer, plus PRO-
RE/2 measuring adapter as accessory) (only MPRO & MXTRA) ..... 41
10.11 Earthing Resistance Measurement, Battery Powered
– Measurement of Soil Resistivity
E
(only MPRO & MXTRA) ...42
11
Measuring Insulation Resistance ........................................ 44
11.1 General ......................................................................................44
11.2 Special Case: Earth Leakage Resistance (R
EISO
) .....................46
12 Measuring Low-Value Resistance
up to 200 Ohm
(protective
conductor and equipotential bonding conductor) ............... 47
12.1 Measurements with Constant Test Current ..............................48
12.2 Protective Conductor Resistance Measurement with Ramp Curve
– Measurements on PRCDs with Current-monitored Protective
Conductor Using PROFITEST PRCD Test Adapter as Accessory 49
13 Measurement with Accessory Sensors .......................... 50
13.1 Current Measurement with Current Clamp Sensor ...................50
14
Special Functions – EXTRA Switch Position ..............................51
14.1 Voltage Drop Measurement (at ZLN) – U Function .................52
14.2 Measuring the Impedance of Insulating Floors and Walls (standing
surface insulation impedance) – Z
ST
Function .........................53
14.3 Testing Meter Start-Up with Earthing Contact Plug
– kWh Function (not SECULIFE IP) .............................................54
14.4 Leakage Current Measurement
with PRO-AB Leakage Current Adapter as Accessory
– I
L
Function (PROFITEST MXTRA & SECULIFE IP only) .............55
14.5 Testing of Insulation Monitoring Devices – IMD Function
(PROFITEST MXTRA & SECULIFE IP only) ...................................56
14.6
Residual Voltage Test – Ures Function (
PROFITEST MXTRA
only) .....58
14.7
Intelligent Ramp – ta+ID Function (
PROFITEST MXTRA
only) ....... 59
14.7.1 Applications ................................................................................59
14.8 Testing Residual Current Monitors
– RCM Function (PROFITEST MXTRA only) ................................60
14.9 Testing the Operating States of Electric Vehicles at Charging Sta-
tions per IEC 61851 (MTECH+ & MXTRA only) ..........................61
14.10 Test Sequences for Report Generation of Fault Simulations on
PRCDs with PROFITEST PRCD Adapter (MXTRA only) ...............62
14.10.1 Selecting the PRCD under Test .....................................................62
14.10.2 Parameter Settings ......................................................................62
14.10.3 Test Sequence PRCD-S (single phase) – 11 Test Steps .................63
14.10.4 Test Sequence PRCD-S (three-phase) – 18 Test Steps ..................63
15 Automatic Test Sequences – AUTO Function ................. 64
16 Database ........................................................................ 66
16.1 Creating Distributor Structures, General ...................................66
… 4 …


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