Omicron CPC 100 Bedienungsanleitung

CPC

Getting Started

CPC Getting Started

2OMICRON

Manual version: ENU 1194 03 04

This manual is a publication of OMICRON electronics GmbH.

All rights including translation reserved. Reproduction of any kind, for example, photocopying,

microfilming, optical character recognition and/or storage in electronic data processing systems,

requires the explicit consent of OMICRON. Reprinting, wholly or in part, is not permitted.

The product information, specifications, and technical data embodied in this manual represent the

technical status at the time of writing and are subject to change without prior notice.

We have done our best to ensure that the information given in this manual is useful, accurate and entirely

reliable. However, OMICRON does not assume responsibility for any inaccuracies which may be

present.

The user is responsible for every application that makes use of an OMICRON product.

OMICRON translates this manual from the source language English into a number of other languages.

Any translation of this manual is done for local requirements, and in the event of a dispute between the

English and a non-English version, the English version of this manual shall govern.

OMICRON 3

Safety instructions

1 Safety instructions

This document covers general safety instructions and information on the CPC 100 and CPC 80.

► For detailed information refer to the documents listed below and the user documentation for the

corresponding accessories.

• CPC 100 User Manual

• CPC 100 Reference Manual

• CPC 80 User Manual

1.1 Operator qualifications

Working on high-voltage assets can be extremely dangerous. Only authorized personnel who are

qualified and skilled in electrical engineering and trained by OMICRON are allowed to operate the

CPC 100 and its accessories. Before starting to work, clearly establish the responsibilities.

Personnel receiving training, instructions, directions, or education on the CPC must be under constant

supervision of an experienced operator while working with the equipment. The supervising operator

must be familiar with the equipment and the regulations on site.

1.2 Safety standards and rules

1.2.1 Safety standards

Testing with the CPC must comply with the internal safety instructions and additional safety-relevant

documents.

In addition, observe the following safety standards, if applicable:

• EN 50191 (VDE 0104) "Erection and Operation of Electrical Test Equipment"

• EN 50110-1 (VDE 0105 Part 100) "Operation of Electrical Installations"

• IEEE 510 "IEEE Recommended Practices for Safety in High-Voltage and High-Power Testing"

Moreover, observe all applicable regulations for accident prevention in the country and at the site of

operation.

Before operating the CPC and its accessories, read the safety instructions in this Getting Started

carefully. Do not turn on the CPC and do not operate the CPC without understanding the safety

information in this manual. If you do not understand some safety instructions, contact OMICRON before

proceeding.

► Observe all applicable regulations for accident prevention in the country and on the site of operation.

► If you do not understand the safety rules, contact OMICRON before proceeding.

CPC Getting Started

4OMICRON

1.2.2 Safety rules

Always observe the five safety rules:

► Disconnect completely.

► Secure against re-connection.

► Verify that the installation is dead.

► Carry out grounding and short-circuiting.

► Provide protection against adjacent live parts.

1.2.3 Safety accessories

OMICRON offers a range of accessories for added safety during the operation of our test systems. For

further information and specifications, refer to the corresponding Supplementary Sheet or contact

OMICRON Support (see "Support" on page 21).

1.3 Preparations on site

Prior to connecting a test object to the CPC, the following steps need to be carried out by an authorized

employee of the utility:

► Turn off and disconnect the high voltage from the test object.

► Protect yourself and your working environment against an accidental re-connection of high voltage

by other persons and circumstances.

► Verify that the installation is dead.

► Earth-connect and short-circuit the test object’s terminals using a grounding set.

► Protect yourself and your working environment with a suitable protection against other (possibly live)

circuits.

1.3.1 Static charges

Static charges on bushings or other apparatus such as transformer windings may be induced by test

potentials. While the voltage may not be significant enough to do any damage, it can be a source for

serious accidents due to falls caused by reflex action.

High static charges may also be encountered at the bushing capacitance taps if the covers are removed.

► Ground all test objects before handling.

OMICRON 5

Safety instructions

1.3.2 Grounding

Operating the device without PE and ground connection is life-threatening and not permitted.

► Only operate the CPC with a mains power supply connected to protective earth (PE).

► Make sure that both the PE connection of the power supply and the ground connector of the CPC

have a solid and low-impedance connection to the grounding system on site.

This also applies to all other test devices and accessories in the test setup.

► Make sure that the grounding clamp has a good electrical contact to the grounding system on site

and avoid connecting it to corroded or painted surfaces.

► Make sure that the grounding terminal connections of all grounded devices in use remain intact

during the whole measurement procedure, and are not accidentally disconnected.

► Only use ground and supply cables provided by OMICRON.

Connect the CPC grounding terminal to the grounding system on site.

CPC Getting Started

6OMICRON

1.3.3 Power supply

Operating the CPC without PE and ground connection is life-threatening and not permitted.

► Only operate the CPC with a mains power supply connected to protective earth (PE).

Power supply from grounded grids (TN/TT)

Before a measurement is started, the CPC automatically verifies the PE connection in grounded grids

(TN/TT).

► If this check fails, check the power cord and power supply.

If the error message persists, there is no intact connection to protective earth (PE).

This is life-threatening. In this case measurements are not permitted and cannot be performed.

Power supply from isolated grids (IT)

An IT grid is a grid structure where none of the active conductors are galvanically connected to ground.

In an IT grid, only the PE is connected to ground.

In IT grids, the check fails – even if there is a PE connection. This can be the case when the CPC is

you need to manually verify this.

If the CPC is supplied by a generator, the equipotential ground or PE of the generator has to be grounded

properly.

► If this is not possible, measurements are not permitted and cannot be performed.

Additional information

Instead of supplying the CPC from phase-neutral (L1-N, A-N), it may also be supplied from phase-phase

(for example, L1-L2; A-B).

► Make sure that the voltage does not exceed 240V AC.

► Make sure that the power supply is fuse-protected (16 A automatic circuit breaker).

► Do not use an extension cable on a cable reel to prevent an overheating of the cord; run out the

extension cord.

► Keep extension cables as short as possible to prevent power loss.

If the power supply is ≤ 190 V AC, the CPC cannot provide the full output power at the 800A AC output.

The same applies when an external current booster is used.

► Therefore, in order to gain the full output power, provide a sufficient power supply

(190 V ... 240 V AC).

The Ext. Booster connector is always galvanically connected to mains and active.

This also applies when no external booster is selected, the green status light (0) is on, the outputs are

turned off, or the Emergency Stop button is pressed.

► Handle the Ext. Booster connector with extreme caution.

► Only use booster cables supplied by OMICRON.

► Do not use booster cables that are frayed or damaged in any way.

OMICRON 7

Safety instructions

1.4 Operating the measurement setup

► If the CPC 100 or any add-on device or accessory does not seem to function properly, do not use it

anymore. Please call the OMICRON hotline.

► If you have a cardiac pacemaker, do not use the CPC! If you have another type of electronic medical

implant, consult your doctor before operating the CPC. Make sure there is no person with an

electronic medical implant such as a cardiac pacemakerin the immediate vicinity.

► Before handling the CPC in any way, connect its grounding terminal to the grounding system on site.

► Make sure that the grounding clamp has a good electrical contact to the grounding system on site

and avoid connecting it to corroded or painted surfaces.

► Make sure that a test object’s terminals that are to be connected to the CPC 100 do not carry any

voltage potential. During a test, the only power source for a test

► Make sure that the ground terminal of the device under test is in good condition, clean and free of

oxidation.

► Protect others from accessing the high-voltage test area and accidentally touching live parts by

setting up a suitable barrier and, if applicable, warning lights.

► Do not enter the high-voltage test area if the red status light of the CPC is on since all outputs carry

dangerous voltage or current.

Figure 1-1: Separation of work area and high-voltage test area

► Do not open the CPC housing.

► Do not repair, modify, extend, or adapt the CPC or its accessories.

► Use only the original CPC accessories available from OMICRON.

►Use the CPC and its accessories only in a technically sound condition.

Make sure its use is in accordance with the regulations on site and the designated use described in

this document.

CPC

Device under test

Work area High-voltage test area

CPC Getting Started

8OMICRON

► Comply with the workflows described in this document. Avoid interruptions or distractions that could

affect safety.

► Do not insert objects (for example, screwdrivers, etc.) into any input/output socket.

► Use dry and clean cables and connectors.

► Do not connect any cable to the test object without a visible grounding of the test object.

► Do not remove any cables from CPC 100 or the test object during a test.

► Always lock connectors properly.

Before performing tests using high voltage, observe the following instructions:

► Do not operate the CPC under ambient conditions that exceed the temperature and humidity limits

specified in the respective user manual.

► Only use the CPC on dry, solid ground.

► Do not operate the CPC in the presence of explosives, gas or vapors.

► Unwind extension cables from their reel. Otherwise they will overheat.

► At their output sockets and especially in the cables connected to them, in operation the high-current

400A DC and 800A AC outputs generate a significant amount of heat (approx. 300 W/m at 800 A).

► After operation, wait for cables and clamps to cool down before touching them. If in doubt, wear

gloves.

► Never use the test cards Quick and Resistance to measure the resistance of windings with a high

inductance because turning off the DC source results in life-threatening voltage levels. For this kind

of measurement only use the special winding resistance test card RWinding, TRTapCheck or OLTC-

Scan.

► If you do not use the high-current outputs 400A DC or 800A AC, or the high-voltage output 2kV AC,

disconnect any cable that may be plugged into these sockets.

► Before disconnecting a device under test from the CPC, ground all terminals.

1.5 DC output to test objects with a high inductance

► Only use the dedicated test cards or tests in Primary Test Manager for DC measurements on assets

with inductive characteristics.

► Never open the measuring circuit while current flows.

► After a measurement, wait until the test device has discharged completely.

► Ground all terminals of the test object before touching the test setup.

► Short-circuit the terminals before disconnecting the test leads.

► Disconnect cables not used for testing both from the test object and the test device.

OMICRON 9

Safety instructions

1.5.1 Discharging after tests on objects with a high inductance

After a winding resistance measurement, the CPC monitors the reduction of the current and voltage

levels to zero. During this discharge process, the red status light flashes.

In the Demag test card, the discharging process is displayed as a status message. In the other tests, a

discharge dialog is displayed.

Note: When you disconnect a cable during the discharge process, even low voltage presents

considerable danger as it suddenly increases to a very high level when the circuit is disconnected.

► Do not touch or disconnect any part of the test setup until the current and voltage levels have reduced

to zero.

► If the measurement is interrupted due to, for example, an unexpected loss of supply voltage or

erroneous behavior of the CPC do not touch the test setup until the energy has dissipated over time.

Note that the length of time depends heavily on the device under test.

1.5.2 CPC 100 software version

In software versions prior to 4.20 SR2, if an error occurs in the test device during a DC winding resistance

measurement and the measurement is aborted, the CPC discontinues the monitoring of the discharge

status before the test object might be completely discharged.

The CPC displays an error message and a green light in this case. This could erroneously be interpreted

as a safe state, although the test setup might still carry potentially hazardous voltage/current.

The CPC will now continue to signal a red light when the described error occurs, to reduce the risk of

misinterpretation. This improvement is included in software releases from 4.20 SR2 onwards.

► Ensure that all CPC devices in your organization have received an update to version 4.20 SR2 or

higher.

We are happy to provide you with a list of the serial numbers that are linked to your organization.

► Contact OMICRON support for more information.

1.6 Orderly measures

The CPC Getting Started or alternatively the e-book always has to be available on the site where the

CPC is operated.

The users of the CPC must read this manual before operating the CPC and observe the safety,

installation, and operation instructions therein.

The CPC and its and its accessories may only be used in accordance with the user documentation

(including but not limited to User Manuals, Reference Manuals, Getting Started manuals and

manufacturer manuals).

LED steady-on red: voltage on 6A DC output > 2 V

Note: This indicator only applies to the 6A DC output and does not include

the 400A DC output.

CPC Getting Started

10 OMICRON

Opening the CPC or its accessories without authorization invalidates all warranty claims. Any kind of

maintenance, calibration or repair on the device itself may only be carried out by persons authorized by

OMICRON.

1.7 Disclaimer

If the equipment is used in a manner not described in the user documentation, the protection provided

by the equipment may be impaired.

1.8 Compliance statement

Declaration of conformity (EU)

The equipment adheres to the guidelines of the council of the European Community for meeting the

requirements of the member states regarding the electromagnetic compatibility (EMC) directive, the low

voltage directive (LVD) and the RoHS directive.

FCC compliance (USA)

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant

to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference in which case the user will be

required to correct the interference at his own expense.

Changes or modifications not expressly approved by the party responsible for compliance could void the

user's authority to operate the equipment.

Declaration of compliance (Canada)

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

1.9 Recycling

This test set (including all accessories) is not intended for household use. At

the end of its service life, do not dispose of the test set with household waste!

For customers in EU countries (incl. European Economic Area)

OMICRON test sets are subject to the EU Waste Electrical and Electronic

Equipment Directive 2012/19/EU (WEEE directive). As part of our legal obligations

under this legislation, OMICRON offers to take back the test set and ensure that it is

disposed of by authorized recycling agents.

For customers outside the European Economic Area

Please contact the authorities in charge for the relevant environmental regulations in

your country and dispose the OMICRON test set only in accordance with your local

legal requirements.

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