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MI 2792 PowerQ4 Plus
METREL MI 2792 PowerQ4 Plus User Manual
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PowerQ4 Plus
MI 2792
Instruction manual
Version 1.0, Code No. 20 751 782
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
6
Main Features
6
Safety Considerations
7
Applicable Standards
8
Abbreviations
8
2 Description
12
Front Panel
12
Connector Panel
13
Bottom View
14
Accessories
14
Standard Accessories
14
Optional Accessories
15
3 Operating the Instrument
16
Instrument Main Menu
17
Instrument Main Functions
18
U, I, F Menu
19
Meter
19
Scope
20
Trend
22
Power Menu
25
Meter
25
Trend
26
Energy Menu
28
Harmonics Menu
29
Meter
29
Histogram (Bar)
31
Trend
32
Flickermeter
35
Meter
35
Trend
36
Phase Diagram
37
Symmetry Diagram
38
Symmetry Trend
39
Temperature
41
Meter
41
Trend
41
General Recorder
42
Waveform Recorder
45
Setup
45
Capturing Waveform
47
Captured Waveform
48
Inrush / Fast Recorder
51
Setup
52
Capturing Inrush
53
Captured Inrush
54
Transients Recorder
56
Setup
56
Capturing Transients
57
Captured Transients
58
Events Table
61
Alarms Table
65
Memory List
66
Record
68
Waveform Snapshoot
70
Waveform Record
71
Inrush/Fast Logger
71
Transients Record
71
Measurement Setup Menu
71
Connection Setup
72
Event Setup
74
Alarm Setup
74
Signalling Setup
76
General Setup Menu
76
Communication
77
Time & Date
79
Language
79
Clear Memory
80
Instrument Info
81
Lock/Unlock
81
4 Recording Practice and Instrument Connection
83
Measurement Campaign
83
Connection Setup
87
Connection to the LV Power Systems
87
Connection to the MV or HV Power System
90
Current Clamp Selection and Transformation Ratio Setting
91
Temperature Probe Connection
95
GPS Time Synchronization Device Connection
96
GPRS Modem Connection
97
Number of Measured Parameters and Connection Type Relationship
98
5 Theory and Internal Operation
101
Measurement Methods
101
Measurement Aggregation over Time Intervals
101
Voltage Measurement (Magnitude of Supply Voltage)
101
Current Measurement (Magnitude of Supply Current)
102
Frequency Measurement
102
Phase Power Measurements
103
Total Power Measurements
103
Energy
104
Harmonics and Interharmonics
105
Signallling
106
Flicker
107
Voltage and Current Unbalance
108
Voltage Events
109
Alarms
111
Data Aggregation in GENERAL RECORDING
112
Waveform Snapshoot
116
Waveform Record
116
Transient Recorder
117
Inrush/Fast Recorder
117
EN 50160 Standard Overview
119
Power Frequency
119
Supply Voltage Variations
120
Voltage Dips (Indicative Values)
120
Short Interruptions of the Supply Voltage
120
Long Interruptions of the Supply Voltage
120
Supply Voltage Unbalance
120
THD Voltage and Harmonics
120
Interharmonic Voltage
121
Mains Signalling on the Supply Voltage
121
Flicker Severity
121
Powerq4 Plus Recorder Setting for en 50160 Survey
121
6 Technical Specifications
123
General Specifications
123
Measurements
123
General Description
123
Phase Voltages
124
Line Voltages
125
Current
125
Frequency
126
Flickermeter
126
Power
126
Power Factor (Pf)
127
Displacement Factor (Cos Φ)
127
Energy
127
Voltage Harmonics and THD
128
Current Harmonics and THD
128
Voltage Interharmonics
128
Current Interharmonics
128
Signalling
129
Unbalance
129
Time and Duration Uncertainty
129
Temperature
129
Recorders
130
General Recorder
130
Waveform Recorder
130
Inrush/Fast Recorder
130
Waveform Snapshoot
131
Transients Recorder
131
Standards Compliance
131
Compliance to the IEC 61557-12
131
Compliance to the to the IEC 61000-4-30
133
7 Maintenance
134
Inserting Batteries into the Instrument
134
Batteries
135
Power Supply Considerations
136
Cleaning
136
Periodic Calibration
136
Service
136
Troubleshooting
136
4
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METREL MI 2792 PowerQ4 Plus Specifications
General
Brand
METREL
Model
MI 2792 PowerQ4 Plus
Category
Measuring Instruments
Language
English
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