Compliance West MegaPulse Bedienungsanleitung

MegaPulse

IMPULSE TESTER

1.2x50-16PF PV

Instruction Manual

Dear Customer:

Congratulations! Compliance West USA is proud to present you

with your MegaPulse 1.2x50-16PF PV Impulse Tester. Your

instrument features a groundbreaking logic-controlled circuit

design and ergonomic front panel and represents the latest in

high voltage impulse testing.

To fully appreciate all the features of your new instrument, we

suggest that you take a few moments to review this manual.

Compliance West USA stands by your instrument with a full one-

year warranty. If the need arises, please don't hesitate to call on

us.

Thank you for your trust and confidence.

Rev 1, June 10, 2016

Table of Contents

An Introduction to Impulse Testing with the MegaPulse series tester ........................................ 6

Safety Precautions .......................................................................................................... 6

Test Personnel ................................................................................................... 6

Testing Area ...................................................................................................... 6

Safety Techniques ............................................................................................. 7

Using the MegaPulse Impulse Tester ............................................................................. 7

Introduction ................................................................................................................................. 9

Operation ..................................................................................................................................... 11

Setting up your Tester .................................................................................................... 11

AC Line Voltage Requirements ..................................................................................... 11

Fuse Replacement .......................................................................................................... 12

Front and Rear Panel Features ....................................................................................... 12

Testing ............................................................................................................................ 19

Maintenance and Calibration ...................................................................................................... 20

Service Information ........................................................................................................ 20

Calibration Information .................................................................................................. 20

Technical Assistance ................................................................................................................... 20

Section 1

An Introduction to Impulse Testing with the MegaPulse series tester

The impulse test is designed to simulate impulse surges which occur in everyday life due

to nearby lightning strikes, switching transients, and other high-frequency faults on the power

distribution network. Impulse testing is the fundamental method for empirical verification of the

adequacy of insulation. Other methods of ensuring adequate insulation (AC or DC Dielectric

Withstand testing, measurement of over-surface creepage, through-air clearance, or distance-

through-insulation) are all extrapolated from the results of impulse testing. The impulse test is

performed to ensure that the insulation in question will be able to function properly when

subjected to similar impulse surges in the field.

Safety Precautions

The impulse withstand test can generate voltages in excess of 16 KV peak at potentially

lethal current levels. Currents of as little as 5 mA at 120 volts can cause death; the MegaPulse

can deliver currents of more than 3500 Amps peak for a very short time duration. The potential

for serious injury or death exists and personnel should be aware when they conduct this test.

Test Personnel

Personnel require special training to conduct the impulse test. They should understand

electrical fundamentals clearly, and be aware that high voltage is adept and creative at

completing a path to ground. Instructions should include a warning against any metal jewelry.

Operators should not allow others in the testing area, especially when tests are being conducted.

Organization is to be stressed. The operator should keep the area free of unused leads and

equipment.

Testing Area

The area used for conducting the impulse test should be as remote as possible from

normal production line activities. Only personnel actually conducting the test should be allowed

in the area, and it should be taped or roped off to preclude casual entry by other employees. In

addition, the area should be marked "WARNING - HIGH VOLTAGE TESTING" or the

equivalent to warn others of the nature of the testing taking place.

The bench being used should be non-conductive, and any exposed metal parts should be

tied together and grounded. If a conductive surface must be used, it should be grounded.

Because of sparking during an impulse test failure, it is not safe to conduct impulse

testing in combustible atmospheres.

It is imperative that a good ground be provided to the MegaPulse tester. Before

connecting the equipment, ensure that the building wiring provides a low-resistance ground. If

the MegaPulse tester is used on a high-resistance grounding circuit, dangerous high voltages may

be present to the operator. In addition, the power to the Testing Area should be provided with an

easily reached shutoff switch which can be actuated by personnel outside the Area if needed.

Safety Techniques

The high voltage circuit of the MegaPulse can be shut off at any time by turning OFF the

rear power switch. Note that there are residual voltages inside the equipment that may take up to

5 minutes to bleed off to safe levels.

The MegaPulse tester is provided with a VOLTAGE ADJUST knob on the front panel. This

voltage setting should always confirm by pressing the VOLTAGE ADJUST knob before start

any testing.

The MegaPulse tester is provided with a CHARGE switch that is in the unarmed

"Standby" setting when the tester is first turned ON. When the yellow CHARGE button is lit,

the tester will not provide high voltage until the CHARGE Button and the TRIGGER Button

have been pressed in order. To prevent inadvertent operation, the operator should be instructed

not to press the CHARGE Button until the test is ready.

The MegaPulse tester has been designed for one-touch operation with the right hand. If

possible, it should be set up to the left and in front of the equipment under test. The equipment

under test should be connected to the MegaPulse tester and then left alone by the operator. After

the operator is clear of the tester and the equipment under test, the operator should turn the rear-

panel power switch to ON, press the CHARGE Button, adjust the voltage to the desired level (as

displayed on the front panel meter), then press the TRIGGER Button, with his right hand. This

will allow the greatest separation between the operator and the test being conducted.

The MegaPulse tester is designed to bleed the high voltage away after the test has

concluded. In order to ensure that any voltage present in the equipment being tested has been

completely bled away, the operator should not unplug the equipment under test from the

MegaPulse until the front panel meter reads a safe level (40 volts or less is generally considered a

safe level). Pressing the TRIGGER button before disconnecting main power (or turning the

equipment off) will ensure that the internal capacitors are discharged as much as possible.

Using the MegaPulse Impulse Tester

The impulse test involves high voltage and caution should be exercised when using the

tester. Both the OUTPUT and RETURN leads are floating (not referenced to chassis ground.

The impulse output waveform is Positive on the OUTPUT lead relative to the RETURN lead

when the output is configured for Normal (NOR) polarity. The impulse output waveform is

Negative on the OUTPUT lead relative to the RETURN lead when the output is configured for

Reverse (REV) polarity. Both the OUTPUT and RETURN leads must always be treated as

Hazardous whenever the power switch of the MegaPulse is in the ON position.

The MegaPulse impulse tester generates the impulse waveform only; it does not

determine Passing or Failing results. It is the operator’s responsibility to monitor the output

waveform and determine Passing or Failing results. In monitoring the impulse waveform,

consider the following points:

The Impulse waveform is high voltage, and high frequency (short duration). Always

ensure that the measuring instrument (usually an oscilloscope with a high-voltage probe) is rated

for the voltage involved, and that the frequency response of the instrument and probe are capable

of measuring the output waveform of the MegaPulse Impulse Tester. A measuring instrument or

probe with a low frequency response will result in erroneous readings that could be mis-read.

Pressing the POLARITY switch on the front panel can change the polarity of the output

waveform. The polarity is Normal when the NOR indicator is lit. In this case, the high voltage

will appear on the OUTPUT as a positive pulse relative to the RETURN jack. When the

polarity switch is in the Reverse position (REV indicator is lit), the high voltage will appear on

the OUTPUT as a negative pulse relative to the RETURN jack. The polarity switch only

operates when the CHARGE LED is lit, i.e. the output is not charged.

Note that the voltage meter may indicate that some residual voltage is present on the

main storage capacitor, even when the tester is first turned ON. This is due to inherent charging

of the internal capacitors. Pressing the TRIGGER switch will discharge the capacitors (be sure

not to touch the output and return leads when pressing the trigger switch).

Note that the peak amplitude of the measured output waveform is the voltage that is read

on the front panel of the MegaPulse prior to triggering the output. This is the peak open-circuit

output into any capacitive load from 0 to 180nF. If the load is outside this capacitance range, or

is a significant resistive or inductive load, the peak output voltage will be lower than shown on

the front panel meter. The output impedance of the MegaPulse tester is low (approximately 2.5

Ohms) and the MegaPulse is capable of delivering thousands of Amps of current into a short

circuit. While the MegaPulse can withstand a short-circuit at the output terminals, it should

NOT be used in this way. It is important to measure the peak amplitude of the output waveform,

and adjust the output of the MegaPulse to achieve the desired peak output voltage at the

Equipment Under Test.

Determination of Passing and Failing results can prove difficult. To obtain the most

accurate results, it is generally necessary to perform multiple impulse tests on a few different test

samples (that have adequate insulation to pass the impulse test). Take note of the impulse

waveshape, amplitude, and duration. Also note how much variance there is in the waveshape

from test to test. Also (if possible), perform impulse testing on some test samples that are known

to have inadequate (or damaged) insulation. Take note of the impulse waveshape, amplitude, and

duration, when an insulation breakdown occurs. A passing result will generally allow the

MegaPulse to generate the full 1.2 x 50uS waveform as shown in figure 1. A failing result will

typically show an abrupt reduction in the output voltage, either before the expected peak, or soon

after (Figure 2).

Figure 1: Full 1.2 x 50uS waveform (typical)

Figure 2: Impulse output with breakdown after the peak

Section 2

Introduction

This manual contains complete operating, maintenance and calibration instructions for the

Compliance West USA MegaPulse 1.2x50-16PF PV Impulse Tester.



In case of trouble, the test can be immediately terminated at any time by turning the rear-

panel power switch to the OFF position.



Before the test can commence, the unit must be armed by pressing the CHARGE Button.

The test will not begin until the TRIGGER Button is pushed.



Voltage is discharged by a resistor bank within the MegaPulse tester upon test completion.

Discharge progress is shown on the front panel meter.

Your tester is warranted for a period of one year upon shipment of the instrument to the original

purchaser.

Specifications

Output Peak: 800V – 16kV Tolerance ±3%

Voltage Rise Time: 1.2µs, tolerance -10%, +50% [Trise=1.67(T90%-T30%)]

Voltage Duration Time: 50 µs, tolerance ±20%

Voltage Control: Knob or optional USB computer control

PV capacitance range: 0nF – 180nF

Voltage Display: 5 digit LED display

Voltage Meter Accuracy: 1% of reading ±10V

Duty Cycle: 60 Seconds between pulses

Charge Rate: > 500V/Sec.

Line Voltage: 120V AC, 50/60Hz *optional different line voltage

Input Fuse: T2A, 250V for 120V operation.

Environmental

Operating Temperature: 15-40 ºC

Relative Humidity Range: 0-90% non-condensing

General

Dimensions: 24” wide x 30” high x 23” in deep

Weight: 140 lbs approx.

Options:

TMM:

Testminder USB computer interface software. The tester can be controlled with a computer. It can also be

set to automatically follow test sequences varying test voltage and time between tests and keep a record with

test information. Compatible with Windows 32bit platform.

220, 230 or 240:

If a different line voltage is desired, with this option we install a step down transformer to be compatible

with your line voltage. 220 is for 220V, 230 for 230V and 240 for 240V.

Inhaltsverzeichnis

Andere Compliance West Prüfgeräte Handbücher

Compliance West

Compliance West GFM-200A Bedienungsanleitung

Compliance West

Compliance West HT-20KVPac Bedienungsanleitung

Compliance West

Compliance West MegaPulse 968-B Metallic A Bedienungsanleitung

Compliance West

Compliance West HT-2000 Bedienungsanleitung

Compliance West

Compliance West GF-30AC-T Bedienungsanleitung

Compliance West

Compliance West MegaPulse 1.2x50/8x20-2PF-HR Bedienungsanleitung

Compliance West

Compliance West HT-3000P Bedienungsanleitung

Compliance West

Compliance West MegaPulse 10x700-2.5 Bedienungsanleitung

Compliance West

Compliance West HT-2000PR Bedienungsanleitung

Compliance West

Compliance West HTT-1 Bedienungsanleitung

Compliance West

Compliance West MegaPulse 360 Bedienungsanleitung

Compliance West

Compliance West HT-5000P Bedienungsanleitung

Compliance West

Compliance West HTT-1R Bedienungsanleitung

Compliance West

Compliance West CDT-240 Handbuch

Compliance West

Compliance West MegaPulse Capacitor A PF Series Bedienungsanleitung

Compliance West

Compliance West TEquipment Defib-5 Bedienungsanleitung

Compliance West

Compliance West HT-5000P Bedienungsanleitung

Compliance West

Compliance West HT-3000 Bedienungsanleitung

Compliance West

Compliance West MegaPulse 1.2x50-12.3PF-1 Bedienungsanleitung

Compliance West

Compliance West MegaPulse Antenna Surge PF 65 Bedienungsanleitung

Compliance West

Compliance West MegaPulse D5-PF Bedienungsanleitung

Compliance West

Compliance West HT-2800 Bedienungsanleitung

Compliance West

Compliance West GFM-300A-DM Bedienungsanleitung

Compliance West

Compliance West HT-2000P Bedienungsanleitung

Beliebte Prüfgeräte Handbücher anderer Marken

SMART

SMART KANAAD SBT XTREME 3G Series Bedienungsanleitung

Agilent Technologies

Agilent Technologies BERT Serial Bedienungsanleitung

Agilent Technologies

Agilent Technologies N3280A Bedienungsanleitung

Vernier

Vernier Go Direct Voltage Bedienungsanleitung

Lifeloc

Lifeloc R.A.D.A.R. Bedienungsanleitung

Fluke

Fluke T5-600 Bedienungs- und Montageanleitung

Mercury

Mercury TSL01 Bedienungsanleitung

MAHA

MAHA MBT Series Bedienungsanleitung

Fuji Electric

Fuji Electric P-61 Bedienungsanleitung

ETC

ETC SealerAtor Bedienungsanleitung

Skyfine

Skyfine ETHYWAY V2 Bedienungsanleitung

Appion

Appion G5 Twin Bedienungsanleitung

PCB Piezotronics

PCB Piezotronics 8159-0112A Bedienungsanleitung

BW Technologies

BW Technologies MicroDock II Bedienungsanleitung

Sun Nuclear

Sun Nuclear 1027 Bedienungsanleitung

Biomark

Biomark HPR LITE READER Bedienungsanleitung

Hioki

Hioki 3169-20 Bedienungsanleitung

Ashcroft

Ashcroft ATE-100 Bedienungsanleitung