Tests and Specifications

The AT5600 is capable of performing over 40 different test types.
In addition to this you can also write test programs (basically a pre-programmed sequence of tests) with up to 150 different steps.
This extends the scope from the AT3600, which only allowed 65 different steps.
The following page summarizes the tests available for the AT5600 tester, and indicates where and why they might be used.
A complete description of each test, its allowed signal levels and measurement accuracy can be found in the user manual.

The tester is available to purchase in one of two versions

AT5600 GOLD

- all tests are enabled at point of shipment

AT5600 STANDARD

- you choose which 14 tests you would like enabled in the unit.

Additional tests can be purchased at any later date, and easily added to the tester by entering a simple keycode via the front panel.
All tests are calibrated and tested at point of sale, even if not purchased with the initial unit, so there is no need to return the unit if you wish to add extra tests later.

Tests Available

1. Low Voltage Tests

TEST	DESCRIPTION	Main Application	Winding Tested	Reason for Test
CTY	Continuity	All transformers	All windings	Properly installed fixture
R	DC Resistance	All transformers	All windings	Properly installed fixture. Correct wire used. Integrity of terminations
LS	Inductance (Series circuit)	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Correct primary turns. Right grade of core material. Core correctly assembled
LP	Inductance (Parallel circuit)	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Correct primary turns. Right grade of core material. Core correctly assembled
QL	Quality Factor	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Right grade of core material. Core correctly assembled. Check for shorted turns
RLS	Equivalent Series Resistance	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Right grade of core material. Core correctly assembled. Check for shorted turns
RLP	Equivalent Parallel Resistance	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Right grade of core material. Core correctly assembled. Check for shorted turns
D	Dissipation Factor	Most transformers, but usually not line frequency transformers	One winding, usually the primary	Right grade of core material. Core correctly assembled. Check for shorted turns
LL	Leakage Inductance	SMPS transformers Communication transformers Others as applicable	Selected windings	Check windings have been installed in the correct position relative to the core
C	Interwinding Capacitance	High frequency transformers. Isolating transformers	Selected windings	Check winding positioning.Check insulation thickness between windings
TR	Turns Ratio and Phasing	Most transformers, but usually not line frequency transformers	All windings	Check windings have correct turns and phasing
TRL	Turns Ratio by Inductance	As with Turns Ratio but used where there is poor flux linkage between windings.	All windings	Check windings have correct turns and phasing
LVOC	Low Voltage Open Circuit	Usually line frequency transformers	All other windings	Correct secondary turns. Correct phasing
IR	Insulation Resistance	All transformers	Between selected windings	Winding isolation check where safety is not involved
LSB	Inductance with Bias Current (Series Circuit)	Transformers for use in applications where passing significant (dc) bias current is part of the normal operation	One winding	Correct number of turns. Right grade of core material. Core correctly assembled.
LPB	Inductance with Bias Current (Parallel Circuit)	Transformers for use in applications where passing significant (dc) bias current is part of the normal operation	One winding	Correct number of turns. Right grade of core material. Core correctly assembled.
OUT	Output To User Port			Allows the AT to perform external switching as part of the test program.
R2	DC Resistance Match	SMPS, audio & telecom	All windings	Checks matching between windings
L2	Inductance Match	SMPS, audio & telecom transformers	All windings	Checks matching between windings
C2	Capacitance Match	SMPS, audio & telecom transformers	All Windings	Checks correct winding position on bobbin
GBAL	General Longitudinal Balance	Audio & telecom transformers	Selected Windings	Checks common mode rejection ratio
LBAL	Longitudinal Balance	Audio & telecom transformers	Selected Windings	Checks common mode rejection ratio
ILOS	Insertion Loss	Audio & telecom transformers	Selected Windings	Checks losses within the transformer
RESP	Frequency Response	Audio & telecom transformers	Selected Windings	Checks losses over a range of frequencies
RLOS	Return Loss	Audio & telecom transformers	Selected Windings	Checks losses returned by a transformer
Z	Impedance	Audio & telecom transformers	Selected Windings	Checks impedance at a given frequency
ZB	Impedance + bias	Audio & telecom transformers	Selected Windings	Checks impedance at a given frequency
ANGL	Impedance Phase Angle	Audio & telecom transformers	Selected Windings	Finds phase shift between Voltage and Current on a winding.
PHAS	Interwinding Phase Test	Audio & telecom transformers	Selected Windings	Measures phase shift between a pair of windings

2. High Voltage Tests

TEST	DESCRIPTION	Main Application	Winding Tested	Reason for Test
HPDC	Hi-Pot (DC)	All transformers especially those used for safety insulation	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
HPAC	Hi-Pot (AC)	All transformers especially those used for safety insulation	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
ACRT	Hi-Pot Ramp (AC)	All transformers especially those used for safety insulation	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
DCRT	Hi-Pot Ramp (DC)	All transformers especially those used for safety insulation	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
ACVB	Voltage Breakdown (AC)	Transformers with MOV fitted	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
DCVB	Voltage Breakdown (DC)	Transformers with MOV fitted	Between selected windings usually primary to secondary, screens and core	High voltage safety insulation
WATT	Wattage	50Hz Iron core transformers	One winding	Correct core material. Properly assembled
ILK	Leakage Current Test	Medical applications	Between Primary and Secondary Windings	Checks for a common mode current due to capacitance
STRW	Stress Wattage	Line frequency & High Frequency Transformers	One Winding (Usually the primary)	Checks integrity of inter-turn insulation, the magnetic material and joints
SURG	Surge Stress Test	All transformers, especially those using fine wire	Selected windings	To identify shorted turns
MAGI	Magnetising Current	Usually line frequency transformers	One winding, usually the primary	Correct primary turns Correct core material properly assembled
VOC	Open Circuit Voltage	Usually line frequency transformers	All other windings	Correct secondary turns. Correct phasing

3. DC1000 Tests

These tests allow the AT5600 to automatically control a Voltech DC1000 for testing transformers with 0-25ADC Bias current applied (or up to 500A DC with 20 DC1000s!)

TEST	DESCRIPTION	Main Application	Winding Tested	Reason for Test
LSBX	Inductance with External Bias (Series Circuit)	Wound components that usually carry a significant DC Bias current in normal operation.	Selected Windings	Checks number of turns, right grade of correctly assembled core material, where bias current is greater than LSB test can handle.
LPBX	Inductance with External Bias (Parallel Circuit)	Wound components that usually carry a significant DC Bias current in normal operation.	Selected Windings	Checks number of turns, right grade of correctly assembled core material, where bias current is greater than LPB test can handle.
ZBX	Impedance with External Bias	Audio & Telecom	Selected Windings	Checks impedance at a given frequency, while applying a greater bias current than is possible with ZB test.

4. AC INTERFACE FIXTURE tests

Allows the AT5600 to use the Voltech AC INTERFACE to interface with your own AC source, to extend test range to 600V @ 10A, 20Hz to 1MHz

TEST	DESCRIPTION	Main Application	Winding Tested	Reason for Test
MAGX	MAGI (External Source)	Usually line frequency transformers	One winding, usually the primary	Correct primary turns. Correct core material properly assembled.
VOCX	VOCX (External Source)	Usually line frequency transformers	All other windings	Correct secondary turns. Correct phasing.
WATX	WATT (External Source)	50Hz Iron core transformers	One winding	Correct core material. Properly assembled.
STRX	STRW (External Source)	Line frequency & High Frequency Transformers	One Winding (Usually the primary)	Checks integrity of inter-turn insulation, the magnetic material and joints.

Test Range and Accuracy Specification

		USER ENTERED TEST DATA
TEST	DESCRIPTION	Measurement Range	Test Signal	Test Frequency	Basic Acc.
	Low Voltage Tests
CTY	Continuity	10kΩ to 10MΩ	n/a	n/a	n/a
R	DC Resistance	10uΩ to 10MΩ	n/a	n/a	0.10%
LS	Inductance (series circuit)	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
LP	Inductance (parallel circuit)	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
QL	Quality Factor	0.001 to 1000	1mV to 5V	20Hz-3MHz	0.50%
D	Dissipation Factor	0.001 to 1000	1mV to 5V	20Hz-3MHz	0.50%
RLS	Equivalent Series Resistance	10uΩ to 10MΩ	1mV to 5V	20Hz-3MHz	0.05%
RLP	Equivalent Parallel Resistance	10uΩ to 10MΩ	1mV to 5V	20Hz-3MHz	0.05%
LL	Leakage Inductance	1nH to 1kH	1mV to 5V	20Hz-3MHz	0.10%
C	Inter-winding Capacitance	100fF to 1mF	1mV to 5V	20Hz-3MHz	0.10%
TR	Turns Ratio and Phasing	1:100k to 100K:1	1mV to 5V	20Hz-3MHz	0.10%
TRL	Turns Ratio by Inductance	30:1 to 1:30	1mV to 5V	20Hz-3MHz	0.10%
LVOC	Low Voltage Open Circuit	1mV to 650V	1mV to 5V	20Hz-3MHz	0.10%
LSB	Inductance with Bias (Series) DC Bias	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
LPB	Inductance with Bias (Parallel) DC Bias	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
R2	DC Resistance Match	1:1000 to 1000:1	n/a	n/a	0.20%
L2	Inductance Match	1:10000 to 10000:1	1mV to 5V	20Hz-3MHz	0.10%
C2	Inter-winding Capacitance Match	1:1000 to 1000:1	1mV to 5V	20Hz-3MHz	0.20%
GBAL	General Longitudinal Balance	0db to 100dB	1mV to 5V	20Hz-3MHz	0.5dB
LBAL	Longitudinal Balance	0db to 100dB	1mV to 5V	20Hz-3MHz	0.5dB
ILOS	Insertion Loss	100 dB to -100dB	1mV to 5V	20Hz-3MHz	0.5dB
RESP	Frequency Response	100 dB to -100dB	1mV to 5V	20Hz-3MHz	1.0dB
RLOS	Return Loss	100 dB to -100dB	1mV to 5V	20Hz-3MHz	n/a
ZB	Impedance, Impedance + Bias	1mΩ to 1MΩ	1mV to 5V	20Hz-3MHz	0.20%
ANGL	Impedance Phase Angle	360 deg to -360 deg	1mV to 5V	20Hz-3MHz	0.05 deg
PHAS	Inter-winding Phase Angle	360 deg to -360 deg	1mV to 5V	20Hz-3MHz	0.05 deg
OUT	Output to User Port	n/a	n/a	n/a	n/a
	High Voltage Tests
HPAC	Hi-Pot (AC)	10uA to 30mA	100V to 5kV	50Hz-1kHz	3.00%
HPDC	Hi-Pot (DC)	1uA to 3mA	100V to 7kV	n/a	3.20%
ACRT	Hi-Pot Ramp (AC)	10uA to 5mA	100V to 5kV	50Hz-1kHz	3.00%
DCRT	Hi-Pot Ramp (DC)	1uA to 3mA	100V to 7kV	n/a	3.20%
ACVB	Voltage Break down (AC)	10uA to 5mA	100V to 5kV	50Hz-1kHz	3.00%
DCVB	Voltage Break down (DC)	10uA to 3mA	100V to 7kV	n/a	3.20%
IR	Insulation Resistance	1MΩ to 100GΩ	100V to 7kV	n/a	1.00%
SURG	Surge Stress	1mVs to 1kVs	100V to 5kV	n/a	3.00%
ILK	Leakage Current	1uA to 10mA	1V to 270V	20Hz-1500Hz	0.50%
VOC	Open Circuit Voltage	100mV to 650V	1V to 270V	20Hz-1500Hz	0.10%
MAGI	Magnetizing Current	1mA to 2A	1V to 270V	20Hz-1500Hz	0.10%
WATT	Wattage	1mW to 25W	1V to 270V	20Hz-1500Hz	0.30%
STRW	Stress Wattage	1mW to 25W	1V to 270V	20Hz-1500Hz	1.00%
	DC1000A Tests
LSBX	Inductance with External Bias (Series)	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
LPBX	Inductance with External Bias (Parallel)	1nH to 1MH	1mV to 5V	20Hz-3MHz	0.05%
ZBX	Impedance with External Bias	1mΩ to 1MΩ	1mV to 5V	20Hz-3MHz	0.20%
	AC Interface Fixture Tests
VOCX	O/C Voltage (External Source)	100mV to 650V	1V to 600V	20Hz-5kHz	0.10%
MAGX	Magnetizing Current (External Source)	50mA to 10A	1V to 600V	20Hz-5kHz	0.10%
WATX	Wattage (External Source)	100mW to 6kW	1V to 600V	20Hz-5kHz	1.00%
STRX	Stress Wattage (External Source)	100mW to 6kW	1V to 600V	20Hz-5kHz	1.00%

User Manual, Software and Firmware

Please see our Downloads section for the latest full user manual

Downloads

Application Notes

Please see our Technichal Articles section for a wide range of tech notes on testing topics

Technical articles

User Foums

Search our online User Forum for real questions and answers to using the AT Series of testers, and general transformer testing topics.

Pedigree

Software