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A1472
METREL A1472 Leakage Current Clamp Manuals
Manuals and User Guides for METREL A1472 Leakage Current Clamp. We have
1
METREL A1472 Leakage Current Clamp manual available for free PDF download: User Manual
METREL A1472 User Manual (22 pages)
Leakage current clamp
Brand:
METREL
| Category:
Measuring Instruments
| Size: 1.03 MB
Table of Contents
Table of Contents
3
1 Warnings
4
2 Description of Leakage Current Clamp
5
Meaning of Symbols
6
3 Maintenance
7
Inspection
7
Cleaning
7
Service and Calibration
7
4 Leakage Current Clamp Operation
8
Measuring of Leakage Currents
8
Origins of Leakage Currents
8
Leakage Currents in Normal Operation
9
Leakage Currents in Fault Conditions
10
Problems Caused by Leakage Currents
11
Measuring Leakage Currents with Current Clamps
13
Direct Method
13
Differential Method
14
Testing Procedures
15
Finding Sources of Excessive Leakage Current
15
Insulation Resistance Testing
17
Influencing Quantities
18
Influence of Nearby External Magnetic Field
18
Influence of Load Current in Differential Leakage Current Test
18
Influence of External Electric Field
19
How to Recognize Accuracy Problems
19
How to Minimize the Influencing Quantities
19
Consideration of Influencing Quantities
20
Other Important Current Clamp Parameters
21
High Measuring Range
21
Clamp Diameter
21
Protection Category
21
5 Technical Specifications
22
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