Grounding of Antenna Tower | Electrical Energetic Systems Earthing | MI 3290 | Instructional

Описание: #electrical #grounding #testing
Comprehensive analysis of earthing and grounding using MI 3290 Earth Analyser through comparison of different measuring methods.

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⏲️ TIMESTAMPS
00:00 Intro
00:35 Preparation
00:49 Eliminate influence of bad contacts
00:57 Extension lead - CURRENT
01:54 Extension lead - VOLTAGE
02:52 Prepare the instrument for testing Pulse & Earth
03:08 Compare the results from both measuring methods
03:34 Disconnect and pack
03:57 Subscribe
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🎓 Academy Metrel is a perfect way to refresh your knowledge, participate in a training seminar using Metrel instruments and prepare for electrical installation exams.
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🎥 Presented by:
Al Markočič – Product manager

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Metrel
Earth Resistance 2,3,4 -pole
Selective Earth Resist (1 x clamp)
Earth Resistance (2 x iron clamps)
Specific Earth Resistance (Wenner and Schlumberger method)
HF-Earth Resistance (25 kHz, acc. to IEEE_Std 81)
Earth Resistance of mono pylons with 10 m flex clamp
Earth Resistance of multi–leg pylons with up to four flex clamps
Current measurement (Iron, flex clamps)
Low Ohm measurement 7 mA and 200 mA
Earth Potential
Step and contact measurements
Impulse Earth measurement 10/350 µs
Possibility of performing different types of earth measurements with a single instrument
Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band (55 Hz ... 15 kHz)
Earth measurements on pylons with protective earth cable connected
Measurement on mono towers and 4-leg tower
A wide variety of measuring clamps: from iron clamps to flex clamps with 10 m length
HF-Earth resistance measurement (acc. to IEEE_Std 81)
Sweep mode Z(f) on screen
High resolution colour touch screen, 4.3” TFT
Floating Mains (universal 90 … 260 V AC) or battery powered (built in fast charger)
High degree of protection: IP 65 case closed, IP 54 case open
Checkbox - different self-check methods
DC resistance measurements
Impulse impedance measurement for simulating the lightning strike
Support for single or automated measurements
PC SW for measurement pre and post processing: preparation of the test structure, result download, tree-view, table view and graphical view, storing and printing
EN 61557-5
EN 50522:2010
IEEE 80–2000
IEEE 81–2012
IEEE 142
IEEE 367–2012
EN 61326
EN 61010-1
EN 61010-2-030
EN 61010-2-032
EN 61010-031