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AVTM21-415Ja Rev. A June 2005
Table of Contents
1 INTRODUCTION.....................................................................................1
2 SAFETY PRECAUTIONS.......................................................................3
3 RECEIVING INSTRUCTIONS.............................................................5
4 SPECIFICATIONS....................................................................................7
5 DESCRIPTION ....................................................................................... 13
6 CONTROL & CONNECTOR IDENTIFICATION...................... 17
7 SETTING UP........................................................................................... 19
Preparation ................................................................................................19
Selection of Location...............................................................................19
Clearances..................................................................................................21
8 OPERATION........................................................................................... 27
Test Procedure..........................................................................................27
Breakdown of Test Item .........................................................................28
Normal Shutdown Procedure ................................................................29
Interrupting a Test ...................................................................................29
9 OPERATION NOTES........................................................................... 31
Line Supply................................................................................................31
Meter Range Settings During Transit....................................................31
Megohm Readings....................................................................................31
Correction for Internal Leakage.............................................................33
Stabilizing Switch......................................................................................33
Use of Guard (See Also Section 10)......................................................34
Voltage Control Scale ..............................................................................35
Use of Regulation Curve .........................................................................35
Step Voltage Testing................................................................................35
Fault Locating (Breakdown Testing).....................................................36
External Current Meter...........................................................................37
Summary of Contents for ATEC 210415 Series
Page 2: ...15 kV Megohmmeter Test Set Catalog No 210415 Series M...
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Page 30: ...SETTING UP 23 AVTM21 415Ja Rev A June 2005 Figure 4 Testing in a Substation...
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