Tonghui TH2840 Series User manual

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Changzhou Tonghui Electronic Co.,Ltd.
www.tonghui.com.cn
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OP PE ER RA AT TI IO ON N M MA AN NU UA AL L
TH2840 Series
Automatic Transformer Test System

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Contents
Chapter 1 Out of Box Audit .......................................................................................................... 1
1.1 To Inspect the package ................................................................................................. 1
1.2 Power connection ......................................................................................................... 1
1.3 Fuse .............................................................................................................................. 1
1.4 Environment ................................................................................................................. 1
1.5 Use of Test Fixture ....................................................................................................... 2
1.6 Warm-up ....................................................................................................................... 2
1.7 Other features ............................................................................................................... 2
Chapter 2 Introduction .................................................................................................................. 4
2.1 Introduction to front panel ........................................................................................... 4
2.2 Introduction to rear panel ............................................................................................. 6
2.2.1 Rear panel description 1 ....................................................................................... 6
2.2.2 Rear panel description 2 ....................................................................................... 8
2.3 Introduction to display zone ......................................................................................... 9
2.4 Main menu keys and corresponding displayed pages ................................................ 10
2.4.1 [DISP] ................................................................................................................ 10
2.4.2 [SETUP] ............................................................................................................. 10
2.4.3 [SYSTEM] ......................................................................................................... 11
2.5 Basic Operation .......................................................................................................... 11
2.6 Power on and off ........................................................................................................ 11
Chapter 3 Description of LCR Function Module ....................................................................... 13
3.1 <Meas Display> ......................................................................................................... 13
3.1.1 Common test conditions ..................................................................................... 13
3.1.2 Test function ....................................................................................................... 13
3.1.3 Scaling position .................................................................................................. 14
3.1.4 Result display of bin sort .................................................................................... 15
3.1.5 Save the bridge test results on the USB flash drive............................................ 16
3.2 <List Display>............................................................................................................ 16
3.2.1 USB flash drive data save .................................................................................. 17
3.3 <Trace Display> ......................................................................................................... 17
3.3.1 Trigger ................................................................................................................ 18
3.3.2 Scale ................................................................................................................... 18
3.3.3 Read ................................................................................................................... 19
3.3.4 Trace ................................................................................................................... 19
3.3.5 USB flash drive data save .................................................................................. 21
3.3.6 Other test results ................................................................................................. 22
3.4 <Meas Setup> ............................................................................................................ 22
3.4.1 Test function ....................................................................................................... 23
3.4.2 Frequency ........................................................................................................... 24
3.4.3 Level ................................................................................................................... 24
3.4.4 Speed .................................................................................................................. 25
3.4.5 Range ................................................................................................................. 26

III
3.4.6 DC Bias .............................................................................................................. 26
3.4.7 Level monitor function ....................................................................................... 27
3.4.8 Trigger ................................................................................................................ 28
3.4.9 Average .............................................................................................................. 29
3.4.10 Automatic level control ...................................................................................... 29
3.4.11 Source resistance ................................................................................................ 29
3.4.12 Deviation and reference ..................................................................................... 30
3.5 <Limit Setup> ............................................................................................................ 30
3.5.1 Compare switch .................................................................................................. 31
3.5.2 Compare count switch ........................................................................................ 31
3.5.3 Comparison function limit mode ........................................................................ 32
3.5.4 Compare parameters ........................................................................................... 32
3.5.5 Deviations and references .................................................................................. 32
3.5.6 BIN Switch ......................................................................................................... 33
3.5.7 High-low limit .................................................................................................... 33
3.6 <List Setup> ............................................................................................................... 33
3.6.1 Total Point .......................................................................................................... 34
3.6.2 Trigger mode ...................................................................................................... 34
3.6.3 List mode ............................................................................................................ 34
3.6.4 Sweep condition ................................................................................................. 34
3.6.5 Parameter function ............................................................................................. 35
3.6.6 High/low limit .................................................................................................... 35
3.6.7 Delay .................................................................................................................. 35
3.7 Trace Setup ................................................................................................................. 35
3.7.1 Common test conditions ..................................................................................... 36
3.7.2 4 sweep parameters ............................................................................................ 36
3.7.3 Spilt .................................................................................................................... 36
3.7.4 Sweep point ........................................................................................................ 37
3.7.5 Sweep Type ........................................................................................................ 37
3.7.6 Trace mode ......................................................................................................... 37
3.7.7 X Format ............................................................................................................ 37
3.7.8 Max-Min ............................................................................................................ 38
3.7.9 Ordinate range setting ........................................................................................ 38
3.8 User Correction .......................................................................................................... 38
3.8.1 Open ................................................................................................................... 39
3.8.2 Short ................................................................................................................... 40
3.8.3 Load ................................................................................................................... 41
3.8.4 Load type ............................................................................................................ 42
3.8.5 Cable .................................................................................................................. 42
3.8.6 Point frequency operation .................................................................................. 42
Chapter 4 System and File .......................................................................................................... 44
4.1 <System Setup> ......................................................................................................... 44
4.1.1 Mode Setup ........................................................................................................ 44
4.1.2 User Setup .......................................................................................................... 45

IV
4.1.3 RS232 ................................................................................................................. 46
4.1.4 LAN ................................................................................................................... 47
4.1.5 Tools ................................................................................................................... 48
4.2 <File> ......................................................................................................................... 49
4.2.1 U-disk manage performance .............................................................................. 50
4.2.2 Introduction to Store/Recall Function ................................................................ 50
4.2.3 Basic menu operation of file management ......................................................... 51
4.2.4 Operation steps for file management ................................................................. 52
Chapter 5 Execute LCR measurement operation and some examples ........................................ 54
5.1 Correction operation................................................................................................... 54
5.1.1 Sweep correction ................................................................................................ 54
5.1.2 Point-frequency correction ................................................................................. 54
5.2 Correct connection of DUT ........................................................................................ 55
5.3 Eliminate the influence of stray impedance ............................................................... 56
5.4 Operation example for testing inductance .................................................................. 57
5.4.1 Test Condition .................................................................................................... 57
5.4.2 Operation steps ................................................................................................... 57
5.5 Operation example of testing capacitance by multi-frequency list sweep ................. 58
5.5.1 Test condition ..................................................................................................... 58
5.5.2 Operation steps ................................................................................................... 58
5.6 Operation example of load correction ........................................................................ 60
5.6.1 Operation steps ................................................................................................... 60
5.6.2 Note .................................................................................................................... 60
Chapter 6 Transformer Single-machine Test .............................................................................. 61
6.1 Circuit for transformer single-machine test................................................................ 61
6.1.1 Some parameters of transformer ........................................................................ 61
6.1.2 Transformer single test circuit and TURN test ................................................... 61
6.1.3 Transformer leakage inductance test .................................................................. 62
6.1.4 Capacitance test between windings of transformer ............................................ 62
6.2 <Transformer Single Setup> ...................................................................................... 63
6.2.1 Trigger ................................................................................................................ 63
6.2.2 Speed .................................................................................................................. 63
6.2.3 Test Mode ........................................................................................................... 63
6.2.4 Rsou ................................................................................................................... 64
6.2.5 Bias Source......................................................................................................... 64
6.2.6 Comp .................................................................................................................. 64
6.2.7 Parameter Setup ................................................................................................. 64
6.3 <Single Display> ........................................................................................................ 65
6.3.1 Save the test results of a single set of transformers on the USB flash drive ...... 66
Chapter 7 Transformer Auto Scanning Test ................................................................................ 67
7.1 Introduction to scan test function ............................................................................... 67
7.2 Install and connect the scanning test system .............................................................. 67
7.3 Front panel of scanning box ....................................................................................... 68
7.4 Rear panel of scanning box ........................................................................................ 70

V
7.5 HANDLER interface .................................................................................................. 70
7.5.1 Timing diagram of HANDLER signal ............................................................... 70
7.5.2 Distribution and connection diagram for HANDLER........................................ 70
7.6 Example of transformer .............................................................................................. 71
7.7 Clear Settings ............................................................................................................. 72
7.8 <Transformer ID> ...................................................................................................... 72
7.8.1 Transformer ID ................................................................................................... 73
7.8.2 Primary Nums .................................................................................................... 73
7.8.3 Secondary Nums ................................................................................................ 73
7.8.4 Rescan Interval ................................................................................................... 73
7.8.5 Scan Disp Mode ................................................................................................. 73
7.8.6 Fail Rescan ......................................................................................................... 74
7.8.7 Bias On Delay .................................................................................................... 74
7.8.8 Ignore Nom ........................................................................................................ 74
7.8.9 Trigger Delay ..................................................................................................... 74
7.8.10 Cylinder Ctrl....................................................................................................... 75
7.8.11 Scan Box Mode .................................................................................................. 75
7.8.12 Resistance Source ............................................................................................... 75
7.8.13 Bias Source......................................................................................................... 75
7.9 Trans Pin To Fixture ................................................................................................... 76
7.9.1 Pin To Fixture Setup ........................................................................................... 76
7.9.2 Pin Label Setup .................................................................................................. 77
7.10 Pin Setup .................................................................................................................... 77
7.10.1 Trans Pin Setup .................................................................................................. 78
7.10.2 Series Pins Setup ................................................................................................ 79
7.10.3 Parallel Pins Setup .............................................................................................. 79
7.11 <Trans Condition> ..................................................................................................... 80
7.11.1 Frequency, voltage, switch and scanning sequence ............................................ 81
7.11.2 TURN Test Conditions Setup ............................................................................. 81
7.11.3 Lx Test Conditions Setup ................................................................................... 84
7.11.4 Lk Test Conditions Setup ................................................................................... 87
7.11.5 Cx Test Conditions Setup ................................................................................... 90
7.11.6 Zx Test Conditions Setup ................................................................................... 93
7.11.7 ACR Test Conditions Setup ............................................................................... 96
7.11.8 DCR Test Conditions Setup ............................................................................... 98
7.11.9 PS Test Conditions Setup ................................................................................... 99
7.11.10 BL Test Conditions Setup ................................................................................. 101
7.11.11 Handler Mode Function ................................................................................... 103
7.11.12 Parameter copy function................................................................................... 103
7.11.13 Statistics Page ................................................................................................... 103
7.12 <Trans Scan> ........................................................................................................... 104
7.12.1 Each Display Zone under this page .................................................................. 105
7.12.2 Function Keys under this page ......................................................................... 105
7.12.3 PRI page-turning function ................................................................................ 106

VI
7.12.4 Pin Display Function for Stray Capacitance .................................................... 107
7.12.5 BAL Balance parameter display ....................................................................... 107
7.13 <File> page of Transformer Scan ............................................................................. 108
7.13.1 Transformer scan setup file (*.t40) .................................................................. 108
7.13.2 Operation steps for file manage ....................................................................... 109
7.13.3 Transformer deviation-deduction ..................................................................... 109
7.14 Focus ........................................................................................................................ 110
7.15 Split .......................................................................................................................... 111
7.16 Frequently asked questions and answers in transformer scan test............................ 112
7.16.1 High and low limits .......................................................................................... 112
7.16.2 Measurement item loss ..................................................................................... 112
7.16.3 Measurement interruption ................................................................................ 113
7.16.4 Poor DCR accuracy .......................................................................................... 113
7.16.5 Poor Lk accuracy .............................................................................................. 113
7.16.6 Inaccurate TURN ............................................................................................. 113
7.16.7 Unstable TURN ................................................................................................ 114
7.16.8 Difference between the first and the second Lx ............................................... 114
7.16.9 Poor stability of Cx and Zx open test data ....................................................... 114
7.16.10 DCR and PS open cannot reach infinite large .................................................. 114
7.17 User-made test fixture .............................................................................................. 114
7.17.1 Use TH1801-EXT2A-OUT to make test fixture .............................................. 115
7.17.2 Example of using TH1801-EXT11A(5.0)-B pin signal ................................... 115
Chapter 8 Performance and Test ............................................................................................... 117
8.1 Test function ............................................................................................................. 117
8.1.1 Parameter and symbol ...................................................................................... 117
8.1.2 Test combination .............................................................................................. 118
8.1.3 Mathematical operation .................................................................................... 118
8.1.4 Equivalent mode ............................................................................................... 118
8.1.5 Range ............................................................................................................... 118
8.1.6 Trigger .............................................................................................................. 118
8.1.7 Delay time ........................................................................................................ 118
8.1.8 Connection modes of test terminals ................................................................. 119
8.1.9 Test speed (Frequency>=10kHz) ..................................................................... 119
8.1.10 Average ............................................................................................................ 119
8.1.11 Display digit ..................................................................................................... 119
8.2 Test signal................................................................................................................. 119
8.2.1 Test signal frequency ........................................................................................ 119
8.2.2 Signal mode ...................................................................................................... 119
8.2.3 Test signal level ................................................................................................ 120
8.2.4 Output impedance ............................................................................................ 120
8.2.5 Monitor for test signal level ............................................................................. 120
8.2.6 Maximum measurement display range............................................................. 120
8.2.7 DC bias voltage source ..................................................................................... 120
8.2.8 2A Bias Current Source .................................................................................... 121

VII
8.3 Measurement accuracy ............................................................................................. 121
8.3.1 Accuracy of│Z│,│Y│, L, C, R, X, G, B ......................................................... 121
8.3.2 D accuracy ........................................................................................................ 121
8.3.3 Q accuracy ........................................................................................................ 122
8.3.4 Θ accuracy ........................................................................................................ 122
8.3.5 G accuracy ........................................................................................................ 122
8.3.6 Rp accuracy ...................................................................................................... 122
8.3.7 Rs accuracy ...................................................................................................... 123
8.3.8 DCR accuracy .................................................................................................. 123
8.3.9 Lk accuracy ...................................................................................................... 123
8.3.10 Turns Ratio accuracy ........................................................................................ 123
8.3.11 Accuracy factor ................................................................................................ 124
8.4 Safety requirement ................................................................................................... 127
8.4.1 Insulation resistance ......................................................................................... 127
8.4.2 Insulation intensity ........................................................................................... 128
8.4.3 Leakage current ................................................................................................ 128
8.5 Electromagnetic compatibility ................................................................................. 128
8.6 Performance test ....................................................................................................... 128
8.6.1 Working condition ............................................................................................ 128
8.6.2 The used instruments and devices .................................................................... 128
8.6.3 Function check ................................................................................................. 129
8.6.4 Test signal level ................................................................................................ 129
8.6.5 Frequency ......................................................................................................... 129
8.6.6 Measurement accuracy ..................................................................................... 129
8.6.7 Accuracy of C and D ........................................................................................ 129
8.6.8 Accuracy of L ................................................................................................... 130
8.6.9 Accuracy of Z ................................................................................................... 130
8.6.10 Accuracy of DCR ............................................................................................. 130
Chapter 9 Command Reference ................................................................................................ 132
9.1 GPIB Common Commands ...................................................................................... 132
9.2 SCPI Command ........................................................................................................ 133
9.2.1 DISPlay subsystem commands ........................................................................ 135
9.2.2 FREQuency subsystem commands .................................................................. 136
9.2.3 VOLTage subsystem commands ...................................................................... 136
9.2.4 CURRent subsystem commands ...................................................................... 137
9.2.5 AMPLitude subsystem commands ................................................................... 137
9.2.6 OUTPut subsystem commands ........................................................................ 138
9.2.7 BIAS subsystem commands ............................................................................. 138
9.2.8 TRIGger subsystem commands ....................................................................... 140
9.2.9 AMPLitude Auto Level subsystem commands ................................................ 141
9.2.10 Output RESister Internal Resistance subsystem commands ............................ 141
9.2.11 FUNCtion subsystem commands ..................................................................... 141
9.2.12 COMParator subsystem commands ................................................................. 145
9.2.13 LIST subsystem commands ............................................................................. 148

VIII
9.2.14 TRACE subsystem commands ......................................................................... 154
9.2.15 Handler subsystem commands ......................................................................... 157
9.2.16 FETCh? subsystem commands ........................................................................ 158
9.2.17 CORRection subsystem commands ................................................................. 160
9.2.18 Mass MEMory subsystem commands .............................................................. 165
9.2.19 TRAN subsystem commands ........................................................................... 167
9.2.20 SYSTem system subsystem commands ........................................................... 172
9.3 Modbus commands .................................................................................................. 177
9.3.1 Command format ............................................................................................. 177
9.3.2 CRC16 calculation method - look-up table method ......................................... 179
9.3.3 Command function comparison table............................................................... 180
Chapter 10 Description for Handler ............................................................................................ 187
10.1 Bin Sorting Handler Description ...................................................................................... 187
10.1.1 Technology Description ................................................................................... 187
10.1.2 Electrical feature .............................................................................................. 191
10.1.3 Handler Wiring Operation Instructions of BIN Sorting ................................... 194
10.1.4 Using Operations .............................................................................................. 196
10.2 List Sweep Handler Description .............................................................................. 197
10.2.1 List Sweep Sorting Logic ................................................................................. 197
10.2.2 Technical Description ....................................................................................... 197
10.2.3 Electrical Feature ............................................................................................. 201
10.2.4 List sweep sorting wiring operation instructions.............................................. 201
10.2.5 Using operation ................................................................................................ 201
10.3 HANDLER description of transformer single group test ......................................... 202
10.3.1 Sorting logic ..................................................................................................... 202
10.3.2 Technical description........................................................................................ 202
10.3.3 Electrical Feature ............................................................................................. 204
10.3.4 Handler wiring operation instructions for transformer single measurement .... 205
10.3.5 Using Operation ............................................................................................... 205
10.4 Transformer scan HANDLER description ............................................................... 206
10.4.1 Technical Description ....................................................................................... 206
10.4.2 Electrical Feature ............................................................................................. 208
10.4.3 Handler wiring operation instructions for transformer Scan ............................ 212
10.4.4 Using operation ................................................................................................ 216
10.5 Instructions for HANDLER sorting of scanning fixtures......................................... 216

IX
Announcement
The description of the manual may not cover all contents of the instrument, and our company is
subject to change and to improve the performance, function, inner structure, appearance, accessory
and package of the instrument without notice. If there is puzzle caused by inconsistency of manual
and instrument, then you can contact with our company by the address on the cover.

1
Chapter 1 Out of Box Audit
When you receive the instrument, some inspections are necessary, and the condition must be
understood and available before installing the instrument.
1.1 To Inspect the package
Inspect the shipping container for damage after unpacking it. It is not recommended to power on the
instrument in the case of a damaged container.
If the contents in the container do not conform to the packing list, notify us or your dealer.
1.2 Power connection
1) Power-supplying voltage range: 100~120Vac or 198~242Vac. Being related with the power
setup on the rear panel.
2) Power-supplying frequency range: 47~63Hz.
3) Power-supplying power range: not less than 130VA.
4) Power supplying input phase line L, zero line N, ground lead E should be as same as the power
plug of the instrument.
5) After careful design, the instrument can reduce the clutter jamming caused by AC power
terminal input, however, it should be used under the environment with low-noise. Please install
power filter if being unavoidable.
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Warning: In order to prevent user and instrument from being hurt by leakage, it is necessary
for user to guarantee the ground line of supply power being reliably grounded.
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1.3 Fuse
The instrument has installed fuse, so operators should use the installed fuse of our company.
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Warning: Be sure that the location of fuse is consistent with power-supplying voltage range
before charging.
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1.4 Environment
1) Please do not operate the instrument in the place that is vibrative, dusty, under direct sunlight