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9

1.2

Output Voltage Control

1.2.1

The output is controlled from zero by means of a regulating transformer.   The transformer
is operated by means of a control knob which is located on the front panel of the control
unit.   To increase the output voltage the knob is turned in a clockwise direction.

Summary of Contents for KV30-40

Page 1: ...gh Voltage AC Test Set Type KV30 40 KV15 18 DESIGNED AND MANUFACTURED BY T R Test Equipment Limited Keens Lane Worplesdon Guildford Surrey GU3 3LS United Kingdom Telephone 01483 235757 e mail sales trtest com Fax 01483 235759 Web www trtest com ...

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Page 3: ...the equipment that may be connected to a local earth Ensure that the product is properly grounded before making any connections to inputs or outputs Terminal ratings must be observed to prevent fire hazards and risk of injury to the operator Consult the product manual for ratings information before making connections to any terminal It is ESSENTIAL to consult the product manual for rating informat...

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Page 5: ...5 CONTENTS 1 Description of Equipment 2 Operating Procedures 3 Maintenance Instructions 4 Standard Accessories 5 Overall Performance Specification 6 Calibration Results 7 Test Certificate 8 Revision ...

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Page 7: ...7 1 DESCRIPTION OF EQUIPMENT 1 1 Electrical Specification 1 2 Output Voltage Control 1 3 Overload Protection 1 4 Metering 1 5 Construction ...

Page 8: ...urrent 1 is the continuous current rating Output current 2 is based on a duty cycle of 5 minutes ON load followed by 15 minutes OFF load 1 1 4 One side of the high voltage transformer output is connected to the earth system of the equipment 1 1 5 System Interlock The equipment is fitted with a zero volt interlock system on the controlling regulator This interlock prevents the output being energise...

Page 9: ... is controlled from zero by means of a regulating transformer The transformer is operated by means of a control knob which is located on the front panel of the control unit To increase the output voltage the knob is turned in a clockwise direction ...

Page 10: ... 3 3 Variable overload The variable overload protection system senses current changes in the high voltage circuit The trip level is adjusted by means of a selector switch on the front panel of the control unit The switch allows the level to be adjusted from 10 110 of normal full current in eleven steps The circuit will activate when the load current exceeds that set by the trip level selector swit...

Page 11: ... is provided with the following metering a A moving coil dual range kilovoltmeter monitoring the output voltage from the equipment b A moving coil single range milliammeter monitoring the secondary current of the high voltage transformer ...

Page 12: ...12 1 5 Construction 1 5 1 The equipment is housed in a robust case with recessed carrying handles All the controls and metering are located on the front panel together with all external connections ...

Page 13: ...13 2 OPERATION 2 1 Connections 2 2 Front Panel Functions 2 3 Method of Operation ...

Page 14: ... earth to the earth terminal on the equipment 2 1 3 Connect the earth hook lead to the earth terminal on the test set and place the hook on the test object s high voltage terminal 2 1 4 IMPORTANT The output cable is only partially screened it is therefore essential that the minimum clearance of 20cm be maintained around the unscreened portion of the output cable See Figure 1 ...

Page 15: ... earth return test object earth stick IMPORTANT There must be 20cm minimum clearance between the unscreened section of HV output cable and earth Note The test object is shown earthed via the earth stick as it should be between tests and before any adjustment to the test object The earth stick should be removed from the test object before the test and replaced after the test is complete ...

Page 16: ...it Switches push button Green OFF HV output when pressed d HV ON illuminated Indicates HV output is ON when lit Switches push button Red ON HV output when pressed e Trip level mA switch Selects output current trip level in mA f Trip reset illuminated Indicates variable overload circuit has activated push button Amber when lit Resets and arms circuit when pressed g Supply voltage selector Selects d...

Page 17: ...nel Layout EARTH RATING MAINS FUSE IN VOLTAGE SELECTOR DANGER HIGH VOLTAGE Ma kV TRIP X 0 5 X 1 MILLIAMPS RESET 10 KV RANGE ON HV OUTPUT OFF 0 100 POWER OUTPUT CONTROL TYPE KV30 40 T R TEST EQUIPMENT g f e d c a b ...

Page 18: ... push button will go out thus indicating that the circuit is armed 2 3 5 Select the desired voltage range on the kV meter and set the desired overload mA trip level 2 3 6 Before commencing testing ensure that the regulator is in the fully anticlockwise position 2 3 7 Depress HV ON push button and this will close the internal circuit breaker The HV OFF lamp will extinguish and the HV ON lamp will b...

Page 19: ...ecommended If however the track is badly corroded it should be cleaned with very fine sand paper ensuring a flat surface is restored Remove particles with a fine brush and finally cleanse with an alcohol moistened brush 3 5 The equipment s output cable should be kept clean and inspected regularly for damage This applies especially to the unscreened portion of the output cable 3 6 To remove the set...

Page 20: ...T5A 1 inch b 1 off F10A 1 inch 4 2 The following items are provided with the equipment a Mains input lead b 2 keys for mains ON OFF switch c 5 metre earth lead fitted with clip and tag d Type ES30 40 earthing stick e 2 tommy bars f Operating Maintenance Manual ...

Page 21: ... frame 5 3 Accuracy of instruments KV meter 1 5 at full scale mA meter 1 5 at full scale 5 4 H V Transformer 2 5kV RMS for 1 minute between primary and earth 2 5kV RMS for 1 minute between earthy end of secondary and earth 5 5 Complete Equipment Over voltage test Equipment run for 5 minutes at 115 of normal output voltage Flash over test 6 flash overs direct to ground at 100 of normal output volta...

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Page 23: ...ter Equipment s mA meter Standard mA meter 5 0 20 High Range x1 10 0 40 15 0 60 2 5 80 Low Range x0 5 5 00 100 7 5 Unit Type KV30 40 Range Equipment s KV meter Standard KV meter Equipment s mA meter Standard mA meter 5 0 10 10 0 20 High Range x1 15 0 30 20 0 40 25 0 50 30 0 2 5 5 00 Low Range x0 5 7 5 10 0 12 5 15 0 ...

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Page 25: ...YPE KV15 80 PRODUCT SERIAL NUMBER TEST PROCEDURE As routine test sheet KV15 80 rts doc TESTED BY PASSED BY DATE PRODUCT TYPE KV30 40 PRODUCT SERIAL NUMBER TEST PROCEDURE As routine test sheet KV30 40 rts doc TESTED BY PASSED BY DATE ...

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Page 27: ...EVISION Product Type High Voltage AC Test Set KV30 40 KV15 18 File KV30 40 and KV15 80 manual v10 doc DJ1 Author D Buckle Issue Date 10 12 06 2001 Modified By D Buckle Checked By I D W Lake Date 12 06 2001 ...

Page 28: ...28 Drawings Required A2 000308 latest issue A2 000542 latest issue ...

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