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MIDAS micro 2883
Tettex MIDAS micro 2883 - User Manual
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Operat
ing Instr
uction
s
HAEF
ELY TEST A
G
M
I
DAS m
icro
2883
M
obile Insulation
Diagnosis &
A
nalysing System
Version 1.
4
4843122
2
Table of Contents
Main Page
Manual Conventions
5
Abbreviations and Definitions
5
Table of Contents
6
Introduction
12
General
12
Scope of Supply
12
Technical Data
14
Safety
16
General
16
Personnel Safety
16
Safety Features
17
Safety Precautions
17
Summary
18
Theory
19
Why Is Insulation Tested
19
What Is Loss Factor
19
What Is Dissipation Factor tan Δ
19
The Difference between Power Factor and Dissipation Factor
21
Apparent Power Real Power Reactive Power
21
Test Instruments
22
Evaluation of Test Results
22
Significance of Capacitance and Dissipation Factor
22
Dissipation Factor of Typical Apparatus Insulation
23
Dissipation Factor and Dielectric Constant of Typical Insulation Materials
23
Influence of Temperature
24
Influence of Humidity
24
Influence of Surface Leakage
25
Electrostatic Interference
25
Negative Dissipation Factor
25
Standard Capacitor, Measuring Current & Limits
26
Parallel & Series Equivalent Circuits
27
Functional Description
28
System Overview
28
V-Potential Point and Guarding
28
Test Modes
29
Test Mode „UST" for Ungrounded Test Objects
31
Test Mode „GST" for Grounded Test Objects
31
Test Mode „GST G" for Grounded Test Objects with Guarding (V-Potential)
32
Interference Suppression
33
Operation Elements
34
Front-Panel Features
34
Ground Terminal
35
Ventilation Slots
35
High Voltage Output
35
Emergency Stop Button
35
Low Voltage Point V
35
Measuring Input HV GND
35
Measuring Input a
35
Measuring Input B
35
Safety Switch Input
36
External Warning Lamp Output
36
Warning Lamp
36
External Temperature Sensor
37
USB Port
37
Ethernet Port
37
Touchscreen
37
Printer
37
Mains Connector
37
Mains Fuses Box
37
Power Switch
38
User Interface
39
Startup Screen
39
Homescreen
40
Basic Mode
41
Basic Mode Screen
41
Status Bar
42
Test Definition Area
43
Measurement Bar and Displays
44
Recorded Measurements
46
Special Symbols in Measurement Values
46
Toolbar Controls
46
Guided Mode
48
DUT and Test Selection
48
Define Test Parameters
48
Instruction Screen
51
Measurement Start Screen
52
The Measurement Screen
54
Status Bar
55
Measurement Bar and Displays
57
Recorded Measurements
57
Special Symbols in Measurement Values
58
Toolbar
58
The Results Screen
59
Advanced Mode
60
Manual Tab
60
Measurement Bar and Displays
62
Test Settings
63
Measured Values Area
63
Special Symbols in Measurement Values
64
Toolbar
64
The Tools Menu
65
The File Menu
67
Sequence Tab
68
Setting up a Sequence
68
The Tools Menu
70
File Menu
71
Sequence Tab During Measurement
72
Setup
73
DUT Tab
73
Miscellaneous Tab
74
Settings Tab
76
Measurement Settings
76
Extended GST Accuracy
77
Extended Noise Reduction
79
Preferences Tab
80
Limits Tab
81
Limits in Basic Mode
81
Limits in Guided Mode
82
Limits in Advance Mode
83
Limits in Reports and Graph
83
Notes Tab
84
Firmware Update
85
Results Screen
87
The Table Tab
87
The File Menu
88
Select Columns Dialog
90
The Graph Tab
91
Filters
91
The Graph
92
Measurement Values
93
Description
93
Data Format
94
Accessing the Measurement Results from Computer
94
Accessories and Options
97
Standard Accessories
97
High Voltage Cable
97
Extension Clamp
98
Bushing Adapters for Measurement of C1
99
Bushing Adapter for Measurement of C2
100
Interlock Adapter
100
Cable Drums
101
Optional Accessories
101
Foot Switch
101
Safety Strobe Light
101
External Temperature Probe
101
Thermo-Hygrometer
101
Adapter LEMO to BNC
101
Hook for HV Cable
102
Set of Hot Collar Tests
102
Midas Office Software
102
Oil Test Cell 6835
102
Miscellaneous
103
Instrument Storage
103
Care and Maintenance
103
Cleaning the Instrument
103
Instrument Calibration
103
Changing Fuses
103
Packing and Transport
104
Recycling
104
Trouble Shooting
105
Customer Support
107
Conformity
108
Applications Guide
109
Bushings
109
Spare Bushings
111
Installed Bushings
112
Measuring Data Interpretation
114
Transformers
114
Power and Distribution Transformers
114
Shunt Reactors
120
Current Transformers
121
Voltage Transformers
121
Excitation Current Measurement
123
Liquid Insulation
125
Test Procedure
125
Measuring Data Interpretation
126
Cables
127
Test Procedures on Different Cables
127
Test Procedure Example
128
Measuring Data Interpretation
128
Capacitors
129
Circuit Breakers
129
Dead Tank Breaker
131
Live Tank Breaker
132
Measuring Data Interpretation
133
Surge (Lightning) Arresters
133
Test Procedures
134
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Tettex MIDAS micro 2883 Specifications
General
Brand
Tettex
Model
MIDAS micro 2883
Category
Medical Equipment
Language
English
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General
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