High Voltage PFT Series Safety, Operation, And Procedure Instructions

Ac hipots

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Safety, Operation, and Procedure Instructions for the PFT 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.

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 or

PFT

SERIES

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Summary of Contents for High Voltage PFT 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 Failure to follow the instructions could result in injury or close proximity to the test area.
Page 2 Operator Manual...
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 S E C T I O N 2 Setting up the Equipment Operating the Equipment 7-10 Blank Page for Notes S E C T I O N 3 Performing Special Operations...
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 PFT Series of AC Hipots are also discussed in the PFT Brochure available from High Voltage, Inc. - 1 -...
Page 5: General Information
PFT Series of Power Frequency AC Test Sets manufactured by HIGH VOLTAGE, INC. Features and Specifications The PFT Series of AC hipot test sets provide continuously adjustable output voltages for the GO/NO-GO testing of high voltage insulation. Earlier versions of the PFT Series were equipped with operator controlled capacitive compensation switches to minimize input primary currents.
Page 6 PFT MODEL SPECIFICATIONS PFT-103 PFT-303 PFT-503 PFT-1003 SEE SPECIFICATIONS ON LAST SHEET OF PARTS LIST Table 1 PFT Series Specifications...
Page 7: Controls And Indicators
The OUTPUT control variable transformer adjusts the output voltage. The 0-10 markings on the knob indicate the low to high setting. 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...
Page 8 V O L T M E T E R A N D R A N G E S W I T C H The KILOVOLT METER and associated range switch allows for more accurate output voltage readings. 1-% precision resistors minimize the need for re-calibration due to aging shift. See Voltmeter Re-calibration in Section 3 for details on calibration.
Page 9: Setting Up The Equipment
The red booted alligator clamp on the output cable is used to connect the output cable to the test object. (50kV and below). Connection of the output toroid on the PFT-1003 high voltage section to the load is accomplished by using a customer provided test lead or tubing (metallic) between...
Page 10: Operating The Equipment
Operating the Equipment This section provides step-by-step instruction on various test methods. Many facilities have their own in-house test procedures that should not be superceded by this manual. The purpose of this section is to explain the capabilities of this test set in real-world applications. AC Insulation Testing Ensure that all the steps listed in Setting up the Equipment have been accomplished.
Page 11 The overload is set to 120% of the rated current of the variable transformer. The use of a gapped transformer in the high voltage tank will null the primary currents (up to 1.5 KVA) and the overload will allow operation to the full output rating of 3 KVA. When testing purely resistive loads, the unit will overload above 1500 VA of input power to the tank.
Page 12 Using the Guarded Return The use of the GUARD/GROUND return feature of this test set provides for very accurate leakage current measurements if certain conditions exist allowing for the GUARD circuit to be employed. The following explanation will detail different test samples and methods that lend themselves to the use of this circuit. The same setup precautions such as proper grounding still apply to the test but the grounds will be manipulated to accomplish the test requirements.
Page 13 High Voltage From Test Test Sample Meter RETURN POST Current flow through return includes only current through the test sample. GUARD GROUND Note that the current to ground is returned after the meter. GROUND POST Figure 3, Guarded Return Diagram...
Page 14: Blank Page For Notes
THIS PAGE LEFT BLANK FOR APPLICATION NOTES...
Page 15: Performing Special Operations
The PFT SERIES of hipots use precision metal film resistors for measurement and calibration of the voltmeter. The use of these resistors in both the high voltage tank and the metering circuits has minimized circuit drift due to aging and temperature. Adjustment of potentiometer (R4) on the voltmeter and current meter PCB can be used to correct for movement changes from the aging of the meter.
Page 16 Raise the output to one half scale on the unit meter. Adjust R4 as required. Check calibration at full scale and on the high range at both half and full scale. If the customer facility calibration certification requires more points of reference, follow those procedures instead of these.
Page 17: Miscellaneous
Oil Insulated High Voltage Tanks The oil-filled tanks in all the PFT SERIES of hipots are field serviceable. The only requirement is that the tank must be oil filled under vacuum at re-assembly if left out of the oil for longer than 3 hours. The parts to service the tank are available from HIGH VOLTAGE, INC.
Page 18: Return Material
RETURNED MATERIAL If for any reason it becomes necessary to return any equipment or materials to High Voltage, Inc., the Service Department of High Voltage, Inc. must be notified, and authorization received, prior to the shipment of the equipment. When notified, the following information must be...
Page 19: Warranty
(a) any defects due to negligence, alteration, modification, accidental or intended physical abuse, faulty installation, and/or misuse: (b) attempted or actual dismantling, service or repair by any person or firm not authorized in writing by High Voltage: (c) defects caused due to handling or transit, either by carrier or purchaser.
Page 20: Warranty
At the exclusive option of High Voltage, purchaser may be directed to dismantle the product at the purchaser’s cost and expense and ship the product prepaid to High Voltage Refer to the Returned Material section for instructions regarding the return of any material to High Voltage If High Voltage elects to inspect the product at the purchaser’s site, and possibly repair,...
Page 21 25-108 TRANSFORMER, VARIABLE, SUPERIOR TYPE 116 T080 TRANSFORMER, CURRENT, HVI #080 HV TNK 84-240 TANK, HIGH VOLTAGE 100 kVac , HV # PFT-1008S REV C PCB-001- 82-275 VOLT METER PCB PFT10 03-060 CAPACITOR, ELECTROLYTIC, RADIAL LEADS, 100µF, 50 Vdc, MOUSER # 140-XRL50V100...
Page 22 RESISTOR, METAL FILM, 12.5W, 60M, 1%, EBG # SSX103-60M T108 TRANSFORMER, HIGH VOLTAGE, HVI # 108 T108T TRANSFORMER, HIGH VOLTAGE, HVI # 108 W/ TERT 08-819 TOROID, ALUMINUM, 13 x 2 INCH 40-613 FIBERGLASS CYLINDER, 8.25 I.D. x 20 INCH LONG...
Page 23 SPECIFICATIONS PFT-1003CM Part No. PFT-1027S Input 120 V, 15 amps, 50/60Hz, single phase HV Output 0-100 kVac, 1.0KVA resistive load 3KVA capacitive load Output Top Toroid Termination Duty 3KVA: 1 hour ON, 1 hour OFF 1.5KVA: continuous Distortion <5% Meter +/- 2% FS Accuracy Kilovoltmeter...
Page 24 TRANSFORMER, VARIABLE, SUPERIOR TYPE 116 T080 TRANSFORMER, CURRENT, HVI #080 T139 TRANSFORMER, AUTO STEP-DOWN, HVI#139 HV TNK TANK, HIGH VOLTAGE 100 kVac , HV # PFT-1008S REV C PCB-001- 82-275 VOLT METER PCB PFT10 03-060 CAPACITOR, ELECTROLYTIC, RADIAL LEADS, 100µF, 50 Vdc, MOUSER # 140-XRL50V100...
Page 25 U-WRAP, HVI # PFT-1001D, 34-118 PANEL, CONTROL, HVI # PFT-1102D HV TANK 84-240 PFT-1003 HIGH VOLTAGE TANK, SCHEMATIC # PFT-1008S REV C 07-010 CONNECTOR, BULKHEAD, CIRCULAR, AMPHENOL # 97-3102E-20-15P R1-4 01-440 RESISTOR, METAL FILM, 12.5W, 60M, 1%, EBG # SSX103-60M...
Page 26 SPECIFICATIONS PFT-1003CMF Part No. PFT-1028S Input 230 V, 10 amps, 50/60Hz, single phase HV Output 0-100 kVac, 1.0KVA resistive load 3KVA capacitive load Output Top Toroid Termination Duty 3KVA: 1 hour ON, 1 hour OFF 1.5KVA: continuous Distortion <5% Meter +/-2% Accuracy Kilovoltmeter...

This manual is also suitable for:

Pft-1003cm