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High Voltage VLF Series Safety, Operation, And Procedure Instructions

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Safety, Operation, and Procedure Instructions for the VLF Series of
AC Hipots
Equipment to be used by trained personnel only
This Operator Manual contains instructions for the operation of a High Voltage power source. The operator of this equipment
must use good judgement and follow all safety precautions noted in this guide to ensure the protection of himself and others in
close proximity to the test area
or death. Proper grounding of the test set must be done prior to
connecting this unit to a power source.
Please Refer to
Documentation
Before Operation
Danger- Lethal Voltages:
. Failure to follow the instructions could result in injury
VLF-12011CM
saMi n e
SERIES

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Summary of Contents for High Voltage VLF Series

  • Page 1 Equipment to be used by trained personnel only This Operator Manual contains instructions for the operation of a High Voltage power source. The operator of this equipment must use good judgement and follow all safety precautions noted in this guide to ensure the protection of himself and others in .
  • Page 2 VLF Operator Manual © HIGH VOLTAGE, INC. 31 Route 7A • P.O.Box 408 Copake, N.Y. 12516 Phone 518/329-3275 • Fax 518/329-3271 http://www.hvinc.com E-mail: factory@hvinc.com...

  • Page 3: Table Of Contents

    T able of Contents About the Operator Manual S E C T I O N 1 General Information Features and Specifications Controls and Indicators List of Components S E C T I O N 2 Setting up the Equipment 9,10 Typical VLF Connection Scheme Operating the Equipment 11-17...

  • Page 4: About The Operator Manual

    Section 1: Specifications and Controls. Section 2: Setup and Operation. Section 3: Performing Special Operations. The Functions, Features, and Specifications of the VLF Series of AC Hipots are also discussed in the VLF Brochure available from High Voltage, Inc. - 1 -...

  • Page 5: General Information

    General Informati o n This section familiarizes the operator with the features and specifications of the VLF Series of Very Low Frequency AC Hipots manufactured by HIGH VOLTAGE, INC. Features and Specifi c ations The VLF-12011CM hipot test set provides true sine wave AC output voltage for the test of high voltage cables and other capacitive loads.
  • Page 6 External Energy Dissipation Resistor WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.

  • Page 7: Operating Environment

    Installation: Category II Pollution: Degree 2 WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.
  • Page 8 O P E R A T O R M A N U A L Safety Symbol Identification Warning! Please refer to documentation before operation Protective Earth Terminal Warning: Hazardous Voltage 5 5 5 5...
  • Page 9 3.5 in. , 0-120 PEAK KILOVOLTS Remote Control Size 17w x 11d x 9.5 high Power Section Size 20w x 14d x 27 high High Voltage Tank size 26w x 26d x 22high Control Case Wt. 20 lbs. (9kg) Power Section Wt.
  • Page 10 The HIGH VOLTAGE ON (OFF) pushbuttons activate (de-activate) the high voltage power circuits. The LED indicators provide long life positive indication of the circuit status. The RED (ON) LED lights when high voltage is energized, the GREEN (OFF) LED lights when the high voltage is de-energized.
  • Page 11 An automatic return to zero function at time of high voltage off ensures energizing of high voltage at zero. The control must be at ZERO (0) to energize the high voltage circuits. The output control must always be returned to zero at the completion of testing, prior to de- energizing the output , allow the unit to cycle for 60 seconds to assure full discharge of the capacitance in the load.
  • Page 12 Operation of the Timer In the VLF Hipot The Dwell Timer included in our VLF Series of AC Hipots will function as an end of test alarm only. The timer will start upon initiation of the high voltage. The timing function will count up to the preset value. Upon reaching the dwell time, an alarm will sound indicating the need to return the Output Control to zero.
  • Page 13 External energy (current limit) dissipation resistor WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.

  • Page 14: Setting Up The Equipment

    The cooling and filter assembly of the VLF series will not operate properly if the high voltage tank is placed on uneven ground. A maximum angle for correct operation is 5°. Blocking the tank to a level condition is acceptable.
  • Page 15 WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.

  • Page 16: Operating The Equipment

    AC Cable Insulation Testing Ensure that all the steps listed in Setting up the Equipment have been accomplished. Take special note to ground the power section and the high voltage tank to a solid earth ground.
  • Page 17 O P E R A T O R M A N U A L Caution!! Before making any cable connections, ensure that the cable being tested has been properly identified, de-energized, and grounded! Make sure that all insulators, stress cones, and pot heads are clean and free of moisture.
  • Page 18 ON pushbutton. The HV ON light will glow. At this time the pump and fan on the high voltage section will also energize. If this is the first test at this location, leave the output control at zero and allow the pump to circulate oil for 15 minutes prior to raising the output voltage and starting the test.
  • Page 19 WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.
  • Page 20 Using the BURN MODE on AC Cables 1. Ensure that all the steps listed in Setting up the Equipment have been accomplished. Take special note to ground the power section and the high voltage tank to a solid earth ground.
  • Page 21 ON pushbutton. The HV ON light will glow. At this time the pump and fan on the high voltage section will also energize. If this is the first test at this location, leave the output control at zero and allow the pump to circulate oil for 15 minutes prior to raising the output voltage and starting the test.
  • Page 22 GROUND STICK to positively ground the test sample. WARNING DO NOT OPERATE THE VLF HIPOT SET IF THE HIGH VOLTAGE TANK IS 5° ° ° ° OR MORE FROM LEVEL. IF THE UNIT IS OPERATED OUT OF LEVEL, OVERHEATING AND INTERNAL ARCING MAY OCCUR.
  • Page 23 O P E R A T O R M A N U A L THIS PAGE LEFT BLANK FOR APPLICATION NOTES...

  • Page 24: Performing Special Operations

    SECTION PERFORMING SPECIAL OPERATIONS The following section contains information on the care and upkeep of your new VLF SERIES AC Hipot. There are some notes on troubleshooting and service, which will save much time and money over the life of the unit.

  • Page 25: Current Meter Re-Calibration

    3. Zero the meter movement using the zero adjustment below the scale window. 4. Perform the steps in Setting up the Equipment at the start of SECTION 2. Be sure to ground power section and high voltage tank to a solid earth ground prior to connecting the unit to input power.

  • Page 26: Returned Material

    SUSPECTED DEFECT: CAUSE OF DEFECT: With the above information provided, High Voltage, Inc. will determine if the return of the equipment is appropriate. If deemed appropriate, a Return Authorization Number will be issued. At that time, the Purchaser will be instructed how to mark and return the equipment.

  • Page 27: Warranty

    The obligation of High Voltage, Inc. under this warranty is limited and High Voltage, Inc. has the exclusive option to replace, repair, or issue credit for any materials that prove to be defective.
  • Page 28 High Voltage, Inc. Refer to the Returned Material section for instructions regarding the return of any material to High Voltage, Inc. If High Voltage, Inc. elects to inspect the equipment at the Purchaser’s site, and possibly repair, replace, or ship to factory the...

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Vlf-12011cm

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