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Transformer Diagnostic System™

Transformer Diagnostic System ™

The Transformer Diagnostic System (TDS) is a computer controlled power supply with integrated metering circuits. The TDS is fully automated and is specifically designed to test conventionally wound three and single-phase transformers. In  order to initiate a test, operator only has to connect a transformer to the system and enter a transformer catalog number into the TDS computer. Then the test instructions for the selected catalog number will be retrieved from the TDS computer’s database and the test will commence. This results in exceptionally rapid, consistent and accurate testing. Not only does the TDS perform the test routine but it also stores the test results in a comprehensive database for future reference. If the transformer fails one of the tests listed, as defined by the catalog number's specific pass/fail criteria stored in the database, a Failure Report will be printed. If the transformer passes the test, catalog number specific carton labels and nameplates can be printed.

The following tests are performed by the TDS:

- Core loss / Excitation current
- Double induced
- Hipot
- Polarity
- Ratio
- Tap voltages

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6 KVA TDS with 3 roll-out label printer bays

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TDS installed and in-use on high-volume production line

Why is Our Product Special?

The TDS incorporates a number of special features which allow for exceptionally rapid and accurate testing.

Specific Terminal Designations

The TDS allows for the following test lead designations:

H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15
A2, A3, B2, B3, C2, C3
X1, X2, X3, X4

These leads are labeled exactly the same way as the leads of the transformer under test. There can be no confusion as to where to connect the test leads. This feature, along with the automatic test function based upon catalog numbers, reduces operator training time to an absolute minimum.

Solid State Voltage Regulator

A solid state voltage regulator has the following advantage over its mechanical counterparts:

Instantaneous Voltage Measurements

The TDS employs over 20 independent voltage measurement circuits. This allows for the instant evaluation a transformer’s ratio, polarity and tap voltages. The TDS does not require time consuming voltmeter switching.

Multiple Voltage are Current Ranges

The TDS employs 7 voltage ranges and 6 current ranges for excitation power measurements. The result is superior measurement accuracy of the power applied to the transformer under test.

Transformer Types

The TDS is designed to test transformers with the configurations and lead designations shown below. The TDS can test any conventionally wound single-phase or three-phase transformer. The diagrams below are provided to illustrate a specific transformer configuration and lead designation group, not to suggest a limit in the range of the TDS’s testing capabilities.

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American Railway Technologies can design and manufacture a TDS to meet almost any testing requirement. Please feel free to contact us to discuss your application.

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