M
28
AVTM21-415Ja Rev. A June 2005
9.
Note voltage, resistance, and time as required by the test
procedure being followed. Make settings and take readings
as described in steps below.
10.
If indicated resistance fluctuates during the reading the
stabilizing switch may be set to the "IN" position (see
Section 9).
11.
To measure insulation resistance at 10 kV, set the
voltmeter range switch to 15 kV and set the voltage to
exactly 10 kV. Read the upper black scale. Read the
resistance in megohms on the upper black scale of the
megohmmeter. Multiply value read by multiplier to which
the megohmmeter range switch is set (i.e. by 1, 10, 100 or
1000; see Section 9).
12.
To measure insulation resistance at 5 kV, set the voltmeter
range switch to 7.5 kV and set the output voltage to
exactly 5 kV. Use the lower red meter scale. Read the
megohmmeter lower red scale and multiply the value by
the megohmmeter RANGE SWITCH setting.
13.
To measure insulation resistance at voltages other than 5
or 10 kV:
a.
Read megohms on the scale corresponding to the
voltmeter range, matching red (inner) scales and black
(outer) scales.
b.
Multiply by the megohmmeter range setting.
c.
Multiply by the reading from the voltmeter lower
green scale. (See "Megohm Readings", for
explanation).
BREAKDOWN OF TEST ITEM
In the event of failure of the apparatus being tested, the Test
Set circuit breakers will trip out within twenty (20) seconds.
When the stabilizer is in use trip-out may not occur but the
Summary of Contents for ATEC 210415 Series
Page 2: ...15 kV Megohmmeter Test Set Catalog No 210415 Series M...
Page 9: ...M 2 AVTM21 415Ja Rev A June 2005 Figure 1 15 kV Megohmmeter Test Set Catalog No 210415...
Page 13: ...M 6 AVTM21 415Ja Rev A June 2005 M...
Page 19: ...M 12 AVTM21 415Ja Rev A June 2005 M...
Page 23: ...M 16 AVTM21 415Ja Rev A June 2005 Figure 2 Schematic Diagram of the 15 kV Megohmmeter...
Page 30: ...SETTING UP 23 AVTM21 415Ja Rev A June 2005 Figure 4 Testing in a Substation...
Page 32: ...SETTING UP 25 AVTM21 415Ja Rev A June 2005 Figure 6 Testing Transformer Terminals...
Page 33: ...M 26 AVTM21 415Ja Rev A June 2005 Figure 7 DC Motor Test Setup Figure 8 Generator Test Setup...
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Page 53: ...M 46 AVTM21 415Ja Rev A June 2005 M...
Page 57: ...M 50 AVTM21 415Ja Rev A June 2005 M...
Page 73: ...M 66 AVTM21 415Ja Rev A June 2005 Figure 15A Interior View Figure 15B Interior View...
Page 75: ...M 68 AVTM21 415Ja Rev A June 2005 M...
Page 81: ...M 74 AVTM21 415Ja Rev A June 2005 M...
Page 82: ...M 2621 Van Buren Avenue Norristown PA 19403 1 800 723 2861 ext 8578 megger com...
