Model ATRT-03 (v) Operating Instruction
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26-1. Test Voltage Selection
The ATRT-03, ATRT-03B units shipped after September of 2000 have the test voltage selection
capabilities. There are 3 test voltages available: 8 Vac, 40 Vac and 100 Vac.
1. The 8 Vac test voltage is reserved for testing transformers that require low-test voltage. Most of
these transformers are metering Current Transformers. Higher test voltage may put these CTs into
saturation.
2. The 40 Vac test voltage, which is the default voltage, is recommended for testing power
transformers.
3. The 100 Vac is recommended for testing power transformers in a noisy environment.
The test voltage can be selected when using the “Computer Interface Mode” or from the keypad in
the “Stand Alone Mode.”
SELECT TEST VOLTAGE
1.8V (CT TEST)
2.40V (NORMAL TEST)
3.100V (NOISY ENV.)
Figure 26-1. Select Test Voltage menus
1. Description:
The user can select 3 different test voltages (8 Vac, 40 Vac, and 100 Vac) to test
transformers.
2. Origin:
From “Start-Up” menu, select key 2, key 4 (NEXT PAGE), key 3 (SET TEST
VOLTAGE).
3. Action Option:
Select key 1 or 2 or 3 for 8 Vac or 40 Vac or 100 Vac.
Note:
1. The ATRT-03, ATRT-03B will always default to 40 Vac test voltage when power is first applied
to the unit.
2. The ATRT-03B uses 20 Vac test voltage generated by an internal oscillator.
3. After new voltage is selected, the ATRT-03/03B will use this voltage until a new test voltage is
selected.
Summary of Contents for ATRT-03
Page 2: ...Model ATRT 03 v Operating Instruction 2...
Page 88: ...Model ATRT 03 v Operating Instruction 86 APPENDEX A Table of Standard Transformers...
Page 89: ...Model ATRT 03 v Operating Instruction 87 APPENDIX B Table of Non Standard Transformers...
Page 90: ...Model ATRT 03 v Operating Instruction 88 APPENDIX B Table of Non Standard Transformers cont...
Page 91: ...Model ATRT 03 v Operating Instruction 89 APPENDIX B Table of Non Standard Transformers cont...
Page 92: ...Model ATRT 03 v Operating Instruction 90 APPENDIX B Table of Non Standard Transformers cont...
