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Technical Document Reader
Document
098-024
Name

AT3600 User Manual

Description
The full user manual for the AT3600 transformer tester.
AT3600 User Manual
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Expand 1 Introduction1 Introduction
Expand 2 Getting Started2 Getting Started
Collapse 3 Test Program Editor3 Test Program Editor
3.1 Introduction
Expand 3.2 Schematic Editing3.2 Schematic Editing
Expand 3.3 Creating The Program3.3 Creating The Program
Collapse 3.4 Programming Tests3.4 Programming Tests
3.4.1 Continuity
3.4.2 Winding Resistance
3.4.3 Equivalent Series Or Parallel Resistance
3.4.4 Winding Inductance
3.4.5 Inductance With Bias
3.4.6 Quality Factor
3.4.7 Dissipation Factor
3.4.8 Leakage Inductance
3.4.9 Interwinding Capacitance
3.4.10 Turns Ratio
3.4.11 Turns Ratio By Inductance
3.4.12 Impedance Impedance With Bias
3.4.13 Inductance Match
3.4.14 Capacitance Match
3.4.15 General Longitudinal Balance
3.4.16 Longitudinal Balance
3.4.17 Insertion Loss
3.4.18 Frequency Response
3.4.19 Return Loss
3.4.20 Impedance Phase Angle
3.4.21 Inter-Winding Phase
3.4.22 Trimming Adjustment
3.4.23 Output To User Port
3.4.24 Insulation Resistance
3.4.25 Hi Pot (DC)
3.4.26 Hi Pot (AC)
3.4.27 Surge (Impulse)
3.4.28 Wattage
3.4.29 Wattage (External Source)
3.4.30 Stress Wattage
3.4.31 Stress Wattage (External Source)
3.4.32 Magnetizing Current
3.4.33 Magnetizing Current (External Source)
3.4.34 Open Circuit Voltage
3.4.35 Open Circuit Voltage (External Source)
3.4.36 Low Voltage Open Circuit
3.4.37 Leakage Current
3.4.38 Inductance With Ext Bias (Series Circuit)
3.4.39 Inductance With Ext Bias (Parallel Circuit)
3.4.40 Impedance With External Bias
3.4.41 Hi Pot Ramp (AC)
3.4.42 Hi Pot Ramp (DC)
3.4.43 Voltage Breakdown (AC)
3.4.44 Voltage Breakdown (DC)
Expand 4 Using the Server4 Using the Server
Expand 5 Fixtures5 Fixtures
Expand 6 Front Panel Operation6 Front Panel Operation
Expand 7 Tests and Test Conditions7 Tests and Test Conditions
Expand 8 Specification8 Specification
Expand 9 Warranty and Service9 Warranty and Service
Expand 10 Safety Systems10 Safety Systems

3.4.36 LVOC - Low Voltage Open Circuit

Applying an ac voltage to the primary of the transformer will produce an ac voltage in the secondary. Low Voltage Open Circuit measures the ‘open circuit’ voltage produced when the specified test signal is applied.

The secondary voltage may be in phase with the primary voltage or it may be antiphase depending on the winding and the termination of the windings.

To program the test:

  1. Enter the required test signal.
  2. Choose the integration period (normally ‘medium’).
  3. Enter the terminals to be used.
  4. Energized terminals: The terminals where the test signal will be applied.
    This is normally the winding with the greatest number of turns.
  5. Primary terminals ‘High’ and ‘Low’: The zero phase reference terminals which are often the same as the energized terminals.
  6. Secondary terminals ‘High’ and ‘Low’: The turns ratio and polarity measurement will be made between the primary and secondary terminals.
  7. Choosing the test limits.
    The test limits can be:
    % A nominal value together with + and – percentage limits.
    >< Minimum and maximum values
    > A minimum value only
    < A maximum value only
    Use the Editor�s �measure� button (together with a sample part) if you are unsure of the nominal value.
    Remember to click on the units of limits (mV or V) when entering absolute values as limits.
    Test limits should be set as close as possible to the nominal value in order to detect faults. A typical tolerance would be � 5%

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