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V

OLTECH

AC

I

NTERFACE

U

SER

M

ANUAL

98-072

ISS

7

PAGE

16

1.5. S

UMMARY OF

A

DVANTAGES

&

D

ISADVANTAGES

Source Type

Advantages

Disadvantages

AC source configured as
power amplifier

Simple in use; no set-up errors

Controlled turn-on for reduced
inrush current

Trimmed output voltage

Flexible voltage and frequency

Cost of the source

Output transformer

Simple in use; no set-up errors

Controlled turn-on for reduced
inrush current

Trimmed output voltage

Flexible voltage and frequency

Power limited to AT3600/AT5600
generator maximum (25 W)

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Содержание AT3600

Страница 1: ...VOLTECH INSTRUMENTS AC Interface Fixture User Manual...

Страница 2: ...ion and the information given in this manual are subject to change without notice No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by means elec...

Страница 3: ...tre confi e qu un personnel qualifi ayant lu et compris le pr sent manuel d utilisation Dans le doute s adresser au fournisseur GEFAHR VON ELEKTRISCHEM SCHOCK Nur entsprechend ausgebildetes Personal i...

Страница 4: ...n At Editor ATP program 33 3 6 Integration of AC Interface tests with IR HPDC HPAC DCRT ACRT DCVB ACVB Tests 34 3 7 Integration of AC Interface tests with ILK SURG MAGI STRW WATT VOC Tests 35 4 Techni...

Страница 5: ...VOLTECH AC INTERFACE USER MANUAL 98 072 ISS 7 PAGE 5 7 4 Compliance with EN954 56...

Страница 6: ...gher power transformers Automatically controls the AC source to optimise test speed and enhance operator safety Integrates the AC source seamlessly into the AT3600 AT5600 environment and allows all ot...

Страница 7: ...78 057 and black Voltech 78 058 4mm safety to bare tinned leads One pair for connecting the external source or transformer secondary to the Input from External Source connector of the AC Interface Th...

Страница 8: ...combination of voltage and frequency that the AC source can provide quickly and accurately Different voltage frequency combinations can be used within one program Accurately trim to the desired output...

Страница 9: ...VOLTECH AC INTERFACE USER MANUAL 98 072 ISS 7 PAGE 9 1 3 1 Worked Example of Chroma 61602 CT10 20 module not shown fitted but will be required...

Страница 10: ...N Where C is the Capacitor value Farads CVoltageRating is the voltage rating of the capacitor V Fm is the test frequency Hz Vm is the measured voltage of the component under test V Im is the measured...

Страница 11: ...mer accessory In this case the blocking capacitor is still needed Using 50Hz 500V 0 3Amps as test conditions and 2 1 for the step up ratio of the A615003 the capacitor need is 76uF 50V In this case we...

Страница 12: ...flexibility and enough overhead on the step up it is best to use a transformer with 1 3 or better step up This means that when requesting the maximum 600 V AC output the internal 270V AT56 supply wil...

Страница 13: ...load will be shared across the transformers and you will not be able to generate more than the 25 Watts power from the AT56 AT36 Ideally you want to A drive the primaries from the AT36 56 class D 10 2...

Страница 14: ...es so that the input voltage would be comfortably above 50V up to a max on 72 Volts The 3 x 230 V secondaries are in series giving 690V output This can be considered and programmed into the editor as...

Страница 15: ...parallel so that the input voltage would be comfortably above 50V and with 110V max The 3 x 230 V secondaries are in series giving 690V output This can be considered and programmed into the editor as...

Страница 16: ...mplifier Simple in use no set up errors Controlled turn on for reduced inrush current Trimmed output voltage Flexible voltage and frequency Cost of the source Output transformer Simple in use no set u...

Страница 17: ...current transformer so that the AT3600 AT5600 can measure the current in the winding under test When a resistive shunt is used the Shunt Sense sockets provide a voltage output that is proportional to...

Страница 18: ...anual 3 Fit the AC Interface Fixture to the rear of the AT3600 AT5600 s top platter and twist down the locking knobs 4 Connect the lead To AT Peripheral Port to the peripheral port of the AT3600 AT560...

Страница 19: ...lead 3 Connect the control inputs of the AC source to their respective outputs from the interface via the To AC Source connector The ESE line is an enable or on Off control ESD is the AC control signa...

Страница 20: ...l Source using the red and black leads supplied 3 Connect the External Source Output to Fixture sockets to the test fixture using the red and black leads supplied These are the leads that have 4mm plu...

Страница 21: ...fixture must also be made so that the AT3600 AT5600 can measure and trim the voltage at the terminals of the winding under test The power connection will also be made to the same nodes so that the AT3...

Страница 22: ...the sockets on their required nodes Below shows a simple step up with the AC interface connected to the power terminals on nodes 17 19 Kelvin leads are then used to connect to the unit under test Ple...

Страница 23: ...that is produced by the internal high power generator of the AT3600 AT5600 For example a transformer could be used to either step up the AT3600 AT5600 s voltage or provide a higher current at lower vo...

Страница 24: ...and constantly trim the input to the step up transformer during the test to give your requested steady test conditions You can either program a ratio e g 1 3 or the real primary and secondary voltage...

Страница 25: ...g source by highlighting its name modifying the configuration details and clicking Save again To delete a source highlight its name and click on Delete Once you have configured your external AC source...

Страница 26: ...n the PC Editor and from the Setup menu choose External Sources Click on New to configure a new external source 1 Enter your own choice of friendly name for your AC source in Source Type 2 From the So...

Страница 27: ...ls and clicking Save again IMPORTANT If you are using an Amplifier AND a step up transformer together see 1 3 1 then this gain must be the gain of the entire system For example The CHROMA 61620 Amp ha...

Страница 28: ...f the CT transformer This CT will scale these larger currents down e g 5 Amps to 0 250 Amps so that the AT can measure it Once this ratio is set you program the test and limits in the real UUT current...

Страница 29: ...u can use your external AC source with the PC Editor test program you must select the source that you have configured in the Editor program options From the Program menu choose Options and from the Ex...

Страница 30: ...nections are made as specified in this manual Test your safety interlock system To avoid damage from switch on transients switch on the AT3600 AT5600 first Then switch on the AC source if used 1 Do no...

Страница 31: ...programmed a sequence of 3 VOCX tests at 200 400 and 600 Volts 5 Check your AC SOURCE settings in SET UP are correct 6 Run the program from the AT Editor The unit should apply the requested voltages t...

Страница 32: ...ay be reported by the Editor because the source has not switched on at all has switched on at the wrong voltage or the voltage sense leads are not connected Check all connections the gain settings for...

Страница 33: ...ible especially if they all share the same V and F settings See AT dot net Editor user manual 98 125 Section 4 for suggestions for test ordering to optimize speed 2 Integration with HIPOT tests See ne...

Страница 34: ...NEVER be connected to a node that is also used by a test in the same program as a HI terminal for a HI POT test This is so that the AC Interface unit is always kept at low potential with respect to E...

Страница 35: ...st with a 2 pole safety isolation relay controlled by the User Port The relays should be selected with suitable isolation to safely isolate the AC INTERFACE from any voltages you wish to apply using t...

Страница 36: ...tion post Voltech part no 78 026 Universal lead set Voltech part no 78 030 contains ten of each of True Kelvin leads Flying lead connection post non Kelvin croc clip leads Grabber clip leads Universal...

Страница 37: ...that the common mode voltage applied to the CT primary or shunt connections is at a minimum This will give maximum accuracy for current measurements 4 2 3 AT Transformer Drive Output These connections...

Страница 38: ...nal Source Drive Pin 3 This connection is used to provide the analogue control signal for an analogue controlled source or amplifier The test program that is being run in the AT controls the amplitude...

Страница 39: ...switch these relays 20mS after the Enable In and Isolator Control lines are activated the External Source Enable signal is activated The ESE line must be used to go to a control port on an external so...

Страница 40: ...deliver current to the measurement device Voltage set accuracy 3 Regulation Load variation 10 100 Balanced load 1 0 max Unbalanced load 3 0 max Ripple and noise 50mVpk pk max Temperature coefficient 0...

Страница 41: ...nnection will be made to the output of the fixture These connections will carry the same voltages and currents as the external source input Shunt Sense These connections are wired directly in parallel...

Страница 42: ...nterface Fixture as a module It cannot be incorrectly fitted Using the CT10 20 is the manufacturer s preferred method Specification Turns ratio 1 20 Frequency response 20Hz to 20kHz Magnitude accuracy...

Страница 43: ...asurement device When choosing a CT for operation on the AC Interface Fixture the first important parameter to make note of is the minimum current that the AT3600 AT5600 can measure accurately and the...

Страница 44: ...hoose to use should Have low losses to maximise the power available Have a turns ratio with sufficient margin to absorb any voltage regulation Remember that the AT3600 AT5600 will attempt to trim to t...

Страница 45: ...ng Current 50mA to 10A 5V to 600V 20Hz to 5kHz 0 1 VOCX Open Circuit Voltage 100 V to 650V 4 1V to 600V 20Hz to 5kHz 0 1 WATX Wattage 100mW to 6kW 5V to 600V 20Hz to 5kHz 1 STRX Stress Wattage 100mW t...

Страница 46: ...he measured current A During a MAGX test the AT3600 AT5600 automatically applies the test voltage to the part under test and checks that the voltage has stabilized before recording measurements The ti...

Страница 47: ...utomatically applies the test voltage to the part under test and checks that the voltage has stabilized before recording measurements The time that the voltage takes to stabilize will vary with the so...

Страница 48: ...erforming either of these tests the AT3600 AT5600 automatically applies the test voltage to the part under test and checks that the voltage has stabilized before recording measurements The time that t...

Страница 49: ...mable in AT EDITOR set up Current Up to 10Arms 30 A continuous peak e g crest factor of 3 at 10Arms Voltage Output 5V minimum 600V AC RMS maximum Frequency range 20Hz to 5 kHz AT output transformer Fr...

Страница 50: ...6 Innovation Drive Milton Park Abingdon Oxfordshire OX14 4RQ UK Declares that the product AC Interface conforms with the following product specifications when used with a Voltech AT3600 AT5600 Transfo...

Страница 51: ...in conjunction with an AT3600 AT5600 transformer tester Immunity The AT3600 AT5600 and AC Interface Fixture may be susceptible to fast electrical transients on the power line and electrostatic discha...

Страница 52: ...s arising out of the use of or inability to use software or documentation even if advised of the possibility of such damage Voltech is not responsible for any lost profits or revenue loss of use of so...

Страница 53: ...h the guidelines given in the AT3600 AT5600 user manual Do not coil any of the high voltage connection leads Replace the fuse only with the same type and rating as specified in this manual Refer servi...

Страница 54: ...has occurred with the external source Please check the status of the external source interface and refer to user manual Should this error occur check the operation and installation of the safety ligh...

Страница 55: ...r occur check the operation and installation of the safety light curtain see AT5600 user manual Voltage Present Condition When the AT5600 detects a voltage level 40V preceding a test the error message...

Страница 56: ...sing an output transformer that is energised by a source within the AT3600 AT5600 along with a Voltech approved safety system because the Voltech safety system guarantees that the connection to the ou...

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