Megger Easytest 20 kV Manuale utente

Easytest 20 kV

Quick Commissioning Tester

USER GUIDE

Issue: A (10/2020) - EN

Article number: 128311586

1-3

Consultation with Megger

The present system manual has been designed as an operating guide and for reference. It is meant to answer your

questions and solve your problems in as fast and easy a way as possible. Please start with referring to this manual

should any trouble occur.

In doing so, make use of the table of contents and read the relevant paragraph with great attention. Furthermore,

check all terminals and connections of the instruments involved.

Should any question remain unanswered, please contact:

Megger Limited Seba Dynatronic

Mess- und Ortungstechnik GmbH

Archcliffe Road

Kent CT17 9EN

T: +44 1304 502100

F: +44 1304 207342

E: uksales@megger.com

Dr.-Herbert-Iann-Str. 6

D - 96148 Baunach

T: +49 9544 68 – 0

F: +49 9544 22 73

E: sales@sebakmt.com

Hagenuk KMT

Kabelmesstechnik GmbH

Megger USA

Röderaue 41

D - 01471 Radeburg / Dresden

T: +49 35208 84 – 0

F: +49 35208 84 249

E: sales@sebakmt.com

Valley Forge Corporate Centre

2621 Van Buren Avenue

Norristown, PA 19403 USA

T: +1 610 676 8500

F: +1 610 676 8610

Megger

declared their consent in writing. The content of this handbook is subject to change without notice. Megger cannot be made

liable for technical or printing errors or shortcomings of this handbook. Megger also disclaim all responsibility

for damage resulting directly or indirectly from the delivery, supply, or use of this matter.

1-4

Terms of Warranty

Megger accept responsibility for a claim under warranty brought forward by a customer for a product sold by

Megger under the terms stated below.

Megger warrant that at the time of delivery Megger products are free from manufacturing or material defects which

might considerably reduce their value or usability. This warranty does not apply to faults in the software supplied.

During the period of warranty, Megger agree to repair faulty parts or replace them with new parts or parts as new

(with the same usability and life as new parts) according to their choice.

Megger reject all further claims under warranty, in particular those from consequential damage. Each component

and product replaced in accordance with this warranty becomes the property of Megger.

All warranty claims versus Megger are hereby limited to a period of 12 months from the date of delivery. Each

component supplied by Megger within the context of warranty will also be covered by this warranty for the

remaining period of time but for 90 days at least.

Each measure to remedy a claim under warranty shall exclusively be carried out by Megger or an authorized

service station.

To register a claim under the provisions of this warranty, the customer has to complain about the defect, in case of

an immediately detectable fault within 10 days from the date of delivery.

This warranty does not apply to any fault or damage caused by exposing a product to conditions not in accordance

with this specification, by storing, transporting, or using it improperly, or having it serviced or installed by a

workshop not authorized by Megger. All responsibility is disclaimed for damage due to wear, will of God, or

connection to foreign components.

For damage resulting from a violation of their duty to repair or re-supply items, Megger can be made liable only in

case of severe negligence or intention. Any liability for slight negligence is disclaimed.

1-5

Contents

1Safety Advice ...................................................................................................................1-6

1.1 General Notes.......................................................................................................................1-6

1.2 General Cautions and Warnings ...........................................................................................1-7

2Technical Description......................................................................................................2-9

2.1 Technical Data......................................................................................................................2-9

2.2 Device Structure .................................................................................................................2-10

2.3 Functional Description ........................................................................................................2-11

3Setting Up the System ................................................................................................... 3-12

3.1 Electrical connection of the Easytest System ...................................................................... 3-12

3.2 Switching On the System.................................................................................................... 3-14

3.3 Safety Mechanisms.............................................................................................................3-14

4Operating the System .................................................................................................... 4-17

4.1 Configuring the System.......................................................................................................4-17

4.2 Adjusting Profile Settings ....................................................................................................4-18

4.3 Logging Function (optional)................................................................................................. 4-19

4.3.1 Logging to a USB Stick .............................................................................................4-19

4.3.2 Logging to a WinkisVLF System Card....................................................................... 4-21

4.4 Performing Tests ................................................................................................................4-23

4.4.1 Hipot Operation Mode...............................................................................................4-24

4.4.2 AC Operation Mode ..................................................................................................4-24

4.4.3 Sheath Fault Testing / Pinpointing.............................................................................4-26

1-6

1 Safety Advice

1.1 General Notes

Safety precautions This manual contains basic advice for the installation and operation of the Easytest. It

is essential to make this manual accessible to the authorised and skilled operator. He

needs to read this manual closely. The manufacturer is not liable for damage to

material or humans due to non-observance of the instructions and safety advices

provided by this manual.

Locally applying regulations have to be observed!

Symbols used in this

manual

Important instructions concerning the protection of staff and equipment as well as

technical safety within this document are labelled with one of the following symbols:

Symbol Description

Indicates a potentially hazardous situation which, if not avoided,

could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may

result in minor or moderate injury or material damage.

Notes have important information and useful tips on the operation of

your equipment. Non-observance may result in useless measure-

ment results.

Working with equipment

of Megger

All electrical regulations of the country where the system is operated have to be

observed as well as national regulations for prevention of accidents and existing

regulations for the safety and operation of equipment of the involved companies.

After working with the equipment, make sure to de-energise, protect against re-

energising, discharge, ground and short-circuit the instrument and installations that

have been worked on.

Original accessories ensure safe operation of the equipment. It is not allowed and the

warranty is lost if other accessories than the original ones are used with the

equipment.

Operating personal Only trained and/or instructed staff is permitted to deal with this syste

m and its

peripherals. Keep any other person away from it.

Only authorised persons with sufficient expertise are allowed to operate the device.

Repair and maintenance Repairs and service must only be done by Megger or authorised service departments

of Megger. Megger recommends having the equipment serviced and checked once

per year at a Megger service location.

Megger also offers direct on-site support. Please contact our service office for more

information.

WARNING

CAUTION

1-7

1.2 General Cautions and Warnings

Intended application Safe operation is only realised when using the equipment for its intended purpose

(see chapter 2.3 Functional Description). Using the equipment for other purposes may

lead to human danger and damage of equipment of involved installations.

The limits described under technical data may not be exceeded. Operating products

of Megger in condensing environment may lead to flash-over, danger and damage.

The instruments should only be operated under tempered conditions. It is not allowed

to operate Megger products at direct contact with humidity, water or near aggressive

chemicals nor explosive gases and fumes.

Behaviour at malfunction

of normal operation

The equipment may only be used when working properly. When irregularities or

malfunctions appear that cannot be solved consulting this manual, the equipment

must immediately be put out of operation and marked as not functional. In this case

inform the person in charge who should inform the Megger service to resolve the

problem. The instrument may only be operated when the malfunction is resolved.

Fife safety rules

The five safety rules must always be followed when working with HV (High Voltage):

1. De-energise

2. Protect against re-energising

3. Confirm absence of voltage

4. Ground and short-circuit

5. Cover up or bar-off neighbouring energised parts

Using cardiac pacemaker

Physical processes during operation of high voltage may endanger persons wearing a

cardiac pacemaker when near these high voltage facilities.

Fire fighting in electrical installations

•Recommended extinguishing agent: carbon dioxide (CO2)

•Carbon dioxide is electrically non conductive and does not leave residue. It is safe

to use in energized facilities as long as the minimum distances are observed.

•It is essential to observe the safety instruction on the extinguishing agent.

•Applicable is DIN VDE 0132.

1-8

Be careful when working with high voltage

Working on high voltage systems and equipment – especially in non-stationary

operation – requires particular care and safety-

conscious action on the part of test

personnel. VDE regulations 0104 on setting up and operating electrical test systems,

as well as EN 50191 and national standards and regulations must be strictly adhered

to.

•The Easytest generates a dangerous voltage of up to 20 kV during testing. This

is supplied via a HV cable to the test object.

•The test system may not be operated without supervision.

•When the test system in use, a second person must always be within sight and

calling distance, in order to use the emergency off switch in the event of danger.

•Never fail to use safety equipment or put it out of operation.

•To prevent dangerous charge accumulation, earth all metal parts in the vicinity of

the high voltage equipment.

•All ca

bles which are out of operation and not tested must be shorted and

earthed.

•The system and all auxiliary equipment must be connected in accordance with

the regulations. The applicable EN, DIN, VDE and national standards and regu-

lations must be strictly adhered to.

•Check whether there are any unsecured live systems or components in the im-

mediate vicinity of the test system which might you or the system might

accidentally come into contact with. This particularly applies to components

which carry high voltage or where the voltage is unknown.

Secure these components using insulating covers. If technical reasons make it

impossible to do this, switch them off or have this action carried out at the site for

the duration of your work after consulting whoever is responsible. Make sure this

is done properly.

WARNING

2-9

2 Technical Description

2.1 Technical Data

Technical data The following parameters are specified for the Easytest receiver:

Parameter Value

Output voltage (DC) 0 ... -20 kV

Source output current 15 mA

Display ranges

Leakage current measurement

0 ... 1 mA, 0 ... 50 mA

0 ... 1 mA, resolution 5 %

Output voltage AC test 0 ... -20 kVDC, 0 ... +20 kVDC

AC test frequency 0,1 Hz for C ≤ 0,5 µF

0,05 Hz for C > 0,5 µF ≤ 1,0 µF

0,02 Hz for C > 1,0 µF < 2,5 µF

0,01 Hz for C > 2,5 µF < 5,0 µF

Voltage wave shape Resembling a rectangle

Testable cable capacitance ≤ 5,0 µF

Sheath test and pinpointing output voltage 0 ... - 5 kVDC / 0 ... -10 kVDC

Output current

Sheath test

Sheath fault pinpointing

DC, Imax = 15 mA

1:3, Imax = 25 mA

Test duration

Range

Interval

0 ... 60 min

First 5 minutes: adjustment in 1-minute steps

Thereafter: adjustment in 5-minute steps

Safety circuit FOhm BE and PE monitoring

External voltage protection (output

separation) (optional)

max. 12 kVAC (optional)

Power supply

230 V ±10 %, 50 ... 60 Hz or

115 V ±10 %, 50 ... 60 Hz

Front panel fuse: 6.3 A MT

Front panel fuse: 10 A MT

Power consumption max. 750 VA

Operating temperature range -20 °C ... +50 °C

Operating humidity +30 °C, 93 % relative humidity

Storage temperature range -25 °C ... +60 °C

Protection class (DIN VDE 0140 T.1) I

Type of protection IP 40 according to EN 60529,

IP 54 with lid closed

Dimensions (W x H x D) 480 x 290 x 495 mm

Weight 17 kg

19 kg, including wiring harness

2-10

2.2 Device Structure

Front view The following illustration shows the front view of the Easytest:

Controls and

connections

The Easytest system has the following controls and connections:

Control Description

1 Membrane keypad

2 Display

3 Emergency off switch

4 HV output

5 HV “interlock” key-operated switch

6 HV on button

7 HV off button

8 Power switch

9 Fuse

10 Power supply

11 Protection earth socket

12 Smartcard slot used to log test data on WinkisVLF system card

(optional)

13 USB slot used to log test data on a USB stick (optional)

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