M
62
AVTM21-415Ja Rev. A June 2005
c.
With power cord disconnected, set R1 to about mid-
point or leave it as found for first try.
d.
Set the supply to 120 Volts.
e.
Close the "AC ON" switch.
f.
Close the "OUTPUT ON" switch.
g.
Move the voltage control to zero and hold it there.
h.
Read and record the line current.
i.
Set the stabilizer switch to the "IN" position.
j.
Increase the supply voltage to 130 volts ±2%.
k.
The current should be 1.09 times the reading of Step h
plus 0.3 amperes.
l.
If the value observed is greater than calculated in
Step k, shut down and move the R1 tap so as to
increase the included resistance.
(Facing the resistor,
moving the tap to the right increases resistance).
If the
observed value is less than calculated in Step k
decrease the resistance of R1 (to the left).
m.
Repeat Steps i through k, and continue until the
condition of Step k is satisfied.
Care must be exercised to avoid overheating CR1 and CR2.
Catalog No. 210415-47
The procedure for adjustment of R1 is the same as for Catalog
No. 210415 except the supply voltage for Step d must be the
nominal voltage selected by the tap on T2 (see tabulation, or
schematic). The supply voltage must be able to be set for the
maximum value for the selector nominal voltage range, as
tabulated on page 7. The voltage (Steps d and j) must be
measured across the input (high-voltage side) of T2 while the
current (Steps h and k) must be measured at the output (low-
voltage side) of T2.
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...
Page 47: ...M 40 AVTM21 415Ja Rev A June 2005 M...
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...
