Megger 128311841 Bedienungsanleitung

HV Tester 25 kV

128311841

Operating Manual

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

unless Megger have before-hand 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.

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.

Operating Manual

HV Tester 25 kV

Table of content

1GENERAL 1

1.1 Safety instructions 1

1.2 INDICATIONS USED IN THE DESCRIPTION 2

2TECHNICAL DESCRIPTION 3

2.1 Description of the set 3

2.1.1 Scope of supply 3

2.1.2 Use of the set 3

2.2 Design of the set 4

2.3 Function 4

2.4 Specifications 5

3PREPARATION FOR USE 7

3.1 Operating requirements 7

3.2 Power supply 7

3.2.1 Internal rechargeable battery 7

3.2.2 Mains 8

3.2.3 External battery 8

3.2.4 Maintenance procedure (internal battery) 8

3.3 Connecting the test equipment 9

4OPERATING INSTRUCTIONS 11

4.1 Controls and displays 11

4.2 OPERATING PROCEDURE 12

4.2.1 Performing measurements 12

4.2.2 Ending testing 13

4.2.3 Safety measures 13

5CARE, MAINTENANCE AND REPAIR 15

Operating Manual

HV Tester 25 kV

Table of Figures:

Figure 1 HV Tester 25 kV 4

Figure 2 HV Tester 25 kV 9

Figure 3 Example for connecting HV Tester 25 kV 10

Figure 4 Front of the HV Tester 25 kV 11

Operating Manual

HV Tester 25 kV

1 GENERAL

The HV Tester is a generator of high direct voltages.

The insulation of cables, electrical plant and plant components can be

tested for electric strength with this set. The insulation resistance of

test objects can be determined by measuring current and voltage using

integrated measuring instruments.

Thanks to its small size and low weight, the HV Tester is portable and

can be used directly on site. The clear arrangement of controls and

displays makes the set comfortable to handle.

The set has an integrated rechargeable battery.

A special protective ground circuit ensures a high level of safety.

1.1 Safety instructions

All persons involved in the transport, installation, operation,

maintenance and repair of this system must have read this user manual

carefully.

The system and its accessories are in accordance with the current state

of safety technology at the time of delivery. Owing to the work

processes involved, however, there may be parts of the system and its

peripherals, which cannot be given optimum protection without an

unreasonable reduction in function and usability.

The following safety instructions must be complied with.

GENERAL INSTRUCTIONS

Work on this system and its peripherals must only be performed by

qualified and/or trained staff. Other persons must be kept away.

This user manual must be available for the supervisory, operating and

maintenance staff to refer to.

Improper use may endanger life and limb, the system and connected

equipment, as well as the efficient functioning of the system.

Always use correct tools in perfect condition.

Checks must be made to ensure that the relevant safety regulations are

being complied with.

Only operate the system if it is in technically perfect condition.

No non-original parts may be used for the system and its peripherals,

as the necessary safety will not be guaranteed. No mode of working,

which detracts from the safety of the system must be used.

The user is under an obligation to report any changes in the system to

the supervisor responsible without delay.

Operating Manual

HV Tester 25 kV

ELECTROTECHNICAL INSTRUCTIONS

The system and all additional equipment must be connected properly.

The relevant DIN and VDE regulations must be complied with.

Maintenance work must only be carried out when the system is

switched off (dead) and then only by qualified and/or trained staff.

1.2 INDICATIONS USED IN THE DESCRIPTION

Important instructions concerning personal protection, work safety and

technical safety are indicated as follows:

WARNING: Warning indicates work and operating procedures,

which must be complied with in full to exclude the

possibility of persons being put at risk. This includes

instructions concerning particular dangers when

handling the system.

ATTENTION: Attention indicates work and operating procedures,

which must be complied with in full to prevent the

system/peripherals from being damaged or destroyed.

N.B.: N.B. indicates special technical requirements to which

the user must pay particular attention when using the

system.

Operating Manual

HV Tester 25 kV

2 TECHNICAL DESCRIPTION

2.1 Description of the set

2.1.1 Scope of supply

The scope of supply includes the following:

Item

Description

00001

HV Tester 25 kV with built in

batteries and softcase

00002

Mains connecting cable

00003

Connecting cable for external

battery

00004

Protective ground cable

(green/yellow)

00005

Operation ground cable (black)

00006

HV- connecting cable

(shielded) incl. clamp

00007

User manual /Service pack

00008

Packing

Table 1 Scope of supply

2.1.2 Use of the set

The HV Tester 25 kV is used for electrical testing of power cables and

plant with direct voltage:

Areas of application include:

Reclosing control after repairs and work on power cables, etc.

Testing newly laid cables before initial use

Testing disconnected cables

Testing electrical equipment

CAUTION: Owing to the high voltages, which occur, special safety

measures are required. These are explained in chapter 1.1on page 1.

Operating Manual

HV Tester 25 kV

2.2 Design of the set

The compact HV Tester 25 kV is very portable thanks to its small size

and low weight and can be used directly on-site. State-of-the-art

technique and clearly designed operation panel for easy application.

The control and display elements as well as the high-voltage outlet are

arranged on the control panel.

A timer is provided for pre-selecting the testing time.

Figure 1 HV Tester 25 kV

2.3 Function

Before the set can be used, the HV Tester 25 kV has to be grounded

properly.

When the high-voltage adjuster is set to zero and the timer works, the

test voltage can be switched on at the press of a button and increased

continuously between 0 V and the nominal voltage.

The condition of the test object with regard to electric strength and

insulation quality can be determined from the values for test voltage and

leakage current displayed on the operation unit.

After testing, the object under test is discharged through the built-in

discharging facility.

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