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GENERAL SAFETY STATEMENT 

  

The following safety precautions should be reviewed to avoid injury to the user and damage to 
the  product  (and  other  products  connected  to  it).    To  avoid  potential  hazards  only  use  this 
product as specified. 

 

Only  suitably  qualified  personnel  should  use  this  equipment.    Servicing  of  this 
product should only be carried out by suitably qualified service personnel. 

 

The high voltage generated by this unit is extremely dangerous and may be fatal.

 

To Avoid Fire Hazards and Personal Injury 

  Use the correct power supply lead.  Only use a suitably rated and approved power supply 

lead for the country of use. 

  Ensure that systems that the unit is to be connected to are dead. 

  Do not connect and disconnect leads whilst outputs are switched on. 

  Ensure  that  the  product  is  grounded.    To  avoid  electric  shock  it  is  essential  that  the 

grounding  conductor  is  connected  to  the  earth  ground.    Additional  earth  terminals  are 
provided on the control unit and 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 manual  for rating  information  before  making  any 

connection to a terminal or terminal group marked with a warning triangle. 

  Only use fuses of a type and rating specified for this product. 

  Do not operate the unit out of its case or with any covers or panels removed. 

  Do not touch exposed connections and components when power is present. 

  Do not operate the product if any damage is suspected.  Refer the unit to qualified service 

personnel to be checked. 

  Do not operate the unit in wet or damp conditions 

  Do not operate the unit in an explosive atmosphere 

If any further queries occur regarding the usage and maintenance of the 
equipment detailed in this manual, please refer these to the supplier of 
the equipment in the first case or to: 

 

T & R Test Equipment Limited 

Summary of Contents for KV50-20D mk2

Page 1: ...roduct High Voltage AC Test Set Type KV50 20D mk2 DESIGNED AND MANUFACTURED BY T R Test Equipment Limited 15 16 Woodbridge Meadows Guildford Surrey GU1 1BJ United Kingdom Telephone 01483 207428 e mail...

Page 2: ...ol unit and 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 pre...

Page 3: ...men 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 reacta...

Page 4: ...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 T...

Page 5: ...unctions 8 2 OPERATION 10 2 1 Safety 10 2 2 Installation 10 2 2 1 Test area 10 2 2 2 Mains supply 10 2 2 3 Earthing 10 2 2 4 Interlock beacon circuit connections 13 2 2 5 Grounding of the high voltage...

Page 6: ...Output current Continuous 5 min on 15 min off KV50 20D MK2 0 50kV 12mA 20mA One side of the high voltage transformer output is connected to the earth system of the equipment 1 1 3 Zero voltage interlo...

Page 7: ...t the output current on short circuit 1 1 6 Metering The equipment is fitted with a two range kV meter that indicates the output voltage It is also fitted with a mA meter that meters the output curren...

Page 8: ...ltage control D HV transformer connector L Output trip level control E Primary trip circuit breaker M N HV output on off switches illuminated green when output is off illuminated red when output is on...

Page 9: ...9 Figure 1 2 HV transformer connections T HV output connection V Control unit connector U Earth terminal for connection to low impedance local earth This terminal MUST be connected as specified...

Page 10: ...supply or HV unit interlock to ensure that the unit cannot be switched on unless the area is secure Refer to EN50191 2001 for further details of suitable test areas The test area must also be identif...

Page 11: ...11 Figure 2 1 KV50 20D MK2 leads...

Page 12: ...12 Figure 2 2 Earthing in metal test cage Figure 2 3 Earthing in temporary test area without earthed enclosure...

Page 13: ...nterlock circuit remove the shorting link from the plug supplied and wire the external interlock circuit in its place The interlock circuit has a self checking circuit and will sound an audible alarm...

Page 14: ...6 1 High voltage output clearances Adequate clearances must be maintained between the following parts and any other conducting object whether earthed or not HV output connection and all parts connecte...

Page 15: ...ding frame Connect control unit earth terminal to earth clamp using supplied earth lead Connect the following leads to the HV transformer earth terminal Earth lead to earth clamp Earth stick Hang eart...

Page 16: ...The key is only removable in the OFF position The key is trapped in the ON position Remove the earth stick from the HV connection of the transformer and leave the test cage Place the earth stick by t...

Page 17: ...mp will extinguish and the HV ON lamp will be lit The output voltage can now be increased to the desired level as indicated on the kV meter In the event of a test object failure the HV output will be...

Page 18: ...control unit is the regulator brush This should be inspected for damage and wear when the unit is re calibrated 3 1 Removal of control unit from case a Remove the lid from the control unit and rest it...

Page 19: ...ovided with the equipment Replacement part number a Mains input lead S000 0580 b Interlock plug GX134 0005 c 2 x 5m earthing leads for control and HV units AX138 0002 d Earth clamp AX138 0003 e Interc...

Page 20: ...frame Accuracy of instruments kV meter 5 of reading 5d mA meter 2 of reading 5d H V Transformer 2 5kV RMS for 1 minute between primary and earth 2 5kV RMS for 1 minute between earthy end of secondary...

Page 21: ...21...

Page 22: ......

Page 23: ...23 6 REVISION Product Type High Voltage AC Test Set KV50 20D mk2 File OM0041 1 docx Author M Clancy Issue Date 1 13 09 2022 Checked By G Bond Date 07 12 22...

Page 24: ...24 Drawings required A2 002227 latest issue KV50 20D mk2...

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