T&R KV30-40D mk3 Operating And Maintenance Manual Download Page 1

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OPERATING AND MAINTENANCE MANUAL

Product:

High Voltage AC Test Set

Type:

KV30-40D mk3 or KV15-80D mk3

DESIGNED AND MANUFACTURED BY:

T & R Test Equipment Limited

15-16 Woodbridge Meadows, Guildford, Surrey, GU1 1BJ, United Kingdom
Telephone: 01483 207428 e-mail:

[email protected]

Web www.trtest.com

Summary of Contents for KV30-40D mk3

Page 1: ...High Voltage AC Test Set Type KV30 40D mk3 or KV15 80D mk3 DESIGNED AND MANUFACTURED BY T R Test Equipment Limited 15 16 Woodbridge Meadows Guildford Surrey GU1 1BJ United Kingdom Telephone 01483 207428 e mail sales trtest com Web www trtest com ...

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Page 3: ...l unit and high voltage HV transformer that must be connected to a local earth Ensure that the unit 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 man...

Page 4: ...y connected to both the test set and the test specimen As a minimum the current capacity of the ground leads should exceed that necessary to carry the maximum possible ground current The effect of ground potential rise due to the resistance and reactance of the earth connection should be considered Precautions should be taken to prevent accidental contact of live terminals by personnel either by s...

Page 5: ... The following safety symbols appear in this manual CAUTION This action or procedure may be dangerous if not carried out correctly and may cause damage to the equipment or connected equipment WARNING This action or procedure may be cause injury or death to the operator or other personnel if not carried out correctly using applicable safety procedures ...

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Page 7: ...External Interlock 12 1 3 Output Voltage Control 13 1 4 Overload Protection 13 1 4 1 Variable Overload 13 1 5 Metering 14 1 6 Construction 14 2 OPERATION 15 2 1 Safety 15 2 1 1 Installation 15 2 1 2 Operation 15 2 2 Connections See Figure 2 18 2 4 Method of Operation 20 3 MAINTENANCE 21 3 1 Removal of Unit from Case 21 4 STANDARD ACCESSORIES 22 5 OVERALL PERFORMANCE SPECIFICATION 23 6 REVISION 25 ...

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Page 9: ...e testing insulation systems and measurement of breakdown voltage on electrical plant switchgear and components Improved digital metering for both accuracy and precision gives the user the ability to read a digital value and have a visual indication of a needle The equipment has been designed to allow the user operator to connect the product to an external test setup with interlocks and now includ...

Page 10: ...10 1 1 Front Panel Overview Figure 1 1 KV30 40D mk3 front panel C B D E F G H J I K L M O N P Q R A ...

Page 11: ...Lamp Mains on indicator H Timer Range Switch Selects timer setting I Primary Trip Transformer Primary circuit breaker J Timer Cancel Button Cancels timer K Main Output ON Control Switches main output ON L Main Output OFF Control Switches main output OFF M Main Output Control Controls the output voltage current N mA Trip Range Switch Selects mA trip current O mA Trip Reset Switch Resets mA trip P k...

Page 12: ...lator This interlock prevents the output being energised unless the controlling regulator is in the minimum output position 1 2 4 External Interlock The KV30 40D mk3 and KV15 80D mk3 is fitted with a 24Vdc external interlock socket This interlock prevents the output being energised unless an external circuit is closed The interlock circuit may also be used to connect normally closed emergency off ...

Page 13: ... 1 4 1 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 unit The switch allows the level to be adjusted from 10 110 of normal full load current in eleven steps The circuit will activate when the load current exceeds that set by the trip level selector switc...

Page 14: ...type KV meter mA meter FSD Resolution FSD Resolution KV30 40D mk3 40kV 0 01kV 50mA 0 01mA KV15 80D mk3 20kV 0 01kV 90mA 0 01mA NOTE Due to the nature of the digital meters a non zero reading may be displayed when the output is off This should not exceed 0 2 on either meter 1 6 Construction The equipment is housed in a robust case with recessed carrying handles All the controls and metering are loc...

Page 15: ...r further details of suitable test enclosures The test area must also be identified with suitable signs 2 1 1 2 Mains supply The unit must be connected to a suitable supply via an approved and suitably rated mains connector with earth connection 2 1 1 3 Earthing Particular attention must be made in earthing the equipment and all earth connections must be made with substantial conductors with secur...

Page 16: ...t is good practice for all capacitive devices to remain short circuited when not in use 2 1 2 3 High voltage connection The HV connection to the test object must be made securely to the test object Suitable stress relief components should be used where required to keep electrical stresses within acceptable limits 2 1 2 4 High voltage output clearances The high voltage output from the unit is from ...

Page 17: ...e cannot be reached by personnel 2 1 2 5 Emergency Stop The output can be immediately terminated by pressing the emergency stop This has a twist to release mechanism When activated the unit immediately terminates the High Voltage output 2 1 2 6 Timer The timer has two controls select test time and alarm cancel When a test time is selected the timer starts when the output is switched ON During the ...

Page 18: ...igh voltage terminal IMPORTANT The output cable is only partially screened It is therefore essential that the minimum clearance defined in 2 1 2 4 be maintained around the unscreened portion of the output cable Figure 2 Connection showing earthed test object before start of test Note The test object is shown earthed via the earth stick as it should be between tests and before any adjustment to the...

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Page 20: ...erlock circuit is closed or the shorting plug is fitted Set the desired overload mA trip level If required set a desired test time Before commencing a test ensure that the regulator is in the fully anticlockwise position at 0 Depress the HV ON push button this will close the internal circuit breaker The HV OFF lamp will extinguish and the HV ON lamp will be lit The output voltage can now be increa...

Page 21: ...ng screws from the underside of the set centre of rubber feet b Place the set in the normal operating position i e with the control panel horizontal and facing upwards c Remove all six panel fixing screws M6 philips head screws nylon washers d Remove the two M6 dome nuts from the lifting positions e Screw on to the exposed threads of the lifting positions the tommy bars provided f The set can now ...

Page 22: ... The following items are provided with the equipment a Mains input lead b 2 keys for mains ON OFF switch c Interlock plug with link fitted d 5 metre earth lead fitted with clip and tag e Type ES30 40 earthing stick f 2 tommy bars g Operating Maintenance Manual ...

Page 23: ...ts KV meter 1 5 of full scale mA meter 1 5 of full scale 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 Complete Equipment Over voltage test Equipment run for 5 minutes at 110 of normal output voltage Flash over test 3 flash overs direct to ground at 33 of normal output voltage 3 flash overs direct to ground at 100 ...

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Page 25: ...ON Product Type High Voltage AC Test Set KV30 40D mk3 or KV15 80D mk3 File KV30 40D mk3 and KV15 80D mk3 manual v1 Author G Bond Issue Date Issue 1 22 06 2020 Modified By M Clancy Checked By G Biggs Date 22 02 20 ...

Page 26: ...26 Drawings required A2 002158 latest issue KV30 40D mk3 Or A2 002165 latest issue KV15 80D mk3 ...

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