Vaisala OPT100 Installation Manual

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M211857EN-K

Installation Guide

Vaisala Optimus™ DGA Monitor for

power transformers

OPT100

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PUBLISHED BY

Vaisala Oyj Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland P.O. Box 26, FI-00421 Helsinki, Finland +358 9 8949 1

Visit our Internet pages at www.vaisala.com.

No part of this document may be reproduced, published or publicly displayed in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be modiﬁed, translated, adapted, sold or disclosed to a third party without prior written permission of the copyright holder. Translated documents and translated portions of multilingual documents are based on the original English versions. In ambiguous cases, the English versions are applicable, not the translations.

The contents of this document are subject to change without prior notice.

Local rules and regulations may vary and they shall take precedence over the information contained in this document. Vaisala makes no representations on this document’s compliance with the local rules and regulations applicable at any given time, and hereby disclaims any and all responsibilities related thereto.

This document does not create any legally binding obligations for Vaisala towards customers or end users. All legally binding

obligations and agreements are included exclusively in the applicable supply contract or the General Conditions of Sale and General Conditions of Service of Vaisala.

This product contains software developed by Vaisala or third parties. Use of the software is governed by license terms and conditions included in the applicable supply contract or, in the absence of separate license terms and conditions, by the General License Conditions of Vaisala Group.

This product may contain open source software (OSS) components. In the event this product contains OSS components, then such OSS is governed by the terms and conditions of the applicable OSS licenses, and you are bound by the terms and conditions of such licenses in connection with your use and distribution of the OSS in this product. Applicable OSS licenses are included in the product itself or provided to you on any other applicable media, depending on each individual product and the product items delivered to you.

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Table of contents

1. About this document.....................................................................................5

1.1 Version information..........................................................................................5

1.2 Related manuals................................................................................................5

1.3 Documentation conventions........................................................................... 6

1.4 Trademarks........................................................................................................ 6

2. Planning the installation...............................................................................7

2.1 Installation safety..............................................................................................7

2.2 Installation phases............................................................................................ 8

2.3 Required personnel...........................................................................................8

2.4 Required materials............................................................................................9

2.5 Recommended tools........................................................................................11

2.6 Storing and transporting DGA monitor......................................................... 11

2.7 Reinstalling DGA monitor................................................................................11

2.8 Installation site requirements..........................................................................11

2.8.1 Installation location of DGA monitor..................................................... 12

2.8.2 Recommended locations of oil connections.........................................12

2.8.3 Network security......................................................................................14

2.9 Regulatory compliances.................................................................................14

2.9.1 FCC Part 15 compliance statement........................................................ 14

2.9.2 Canada ICES-003 compliance statement.............................................15

3. Mechanical installation................................................................................16

3.1 Unpacking DGA monitor................................................................................ 16

3.2 Mounting with Ground Mounting Set........................................................... 16

3.2.1 Parts with Ground Mounting Set............................................................19

3.2.2 Dimensions with Ground Mounting Set.................................................21

3.3 Mounting with Wall Mounting Set................................................................22

3.3.1 Parts with Wall Mounting Set................................................................ 24

3.3.2 Dimensions with Wall Mounting Set.....................................................26

3.4 Installing oil lines............................................................................................ 28

3.5 Attaching power supply unit..........................................................................31

3.6 Attaching weather shield................................................................................31

4. Electrical installation...................................................................................33

4.1 OPT100 cable glands and connectors......................................................... 33

4.2 OPTPSU1 cable glands and connectors....................................................... 34

4.3 Interior parts................................................................................................... 35

4.4 Grounding DGA monitor............................................................................... 36

4.5 Connecting DC power to DGA monitor....................................................... 37

4.6 Connecting relay control to power supply unit..........................................40

4.7 Connecting RS-485 serial line.......................................................................43

4.7.1 RS-485 termination and biasing........................................................... 45

4.8 Connecting Ethernet......................................................................................46

4.9 Connecting relays...........................................................................................47

4.10 Connecting AC (mains) power.....................................................................50

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OPT100 Installation Guide M211857EN-K

4.11 Verifying tightness of cable glands..............................................................52

5. Commissioning..............................................................................................54

5.1 Turning on DGA monitor............................................................................... 54

5.2 Connecting to user interface.........................................................................54

5.3 Changing administrator password............................................................... 55

5.4 Conﬁguring network connection..................................................................56

5.5 Conﬁguring user interface security..............................................................57

5.6 Setting device name...................................................................................... 58

5.7 Setting date and time.................................................................................... 59

5.8 Initializing DGA monitor................................................................................60

5.9 Conﬁguring autocalibration..........................................................................64

5.10 Conﬁguring Modbus protocol.......................................................................65

5.11 Conﬁguring DNP3 protocol...........................................................................66

5.12 Conﬁguring IEC 61850 protocol................................................................... 68

5.13 Using protocol test mode..............................................................................69

5.14 Conﬁguring gas level alerts...........................................................................70

5.15 Conﬁguring unit settings................................................................................71

5.16 Conﬁguring relays...........................................................................................72

5.17 Starting measurement................................................................................... 73

5.18 Finalizing installation......................................................................................73

6. Installation report.........................................................................................74

6.1 Site and device information.......................................................................... 74

6.2 DGA monitor conﬁguration report...............................................................76

6.3 Post-installation checklist..............................................................................78

Index....................................................................................................................81

Maintenance and calibration services........................................................ 83

Technical support............................................................................................ 83

Warranty............................................................................................................ 83

Recycling...........................................................................................................83

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List of ﬁgures

Figure 1 Possible locations of oil connections..........................................................13

Figure 2 Assembly of the mounting stand................................................................ 17

Figure 3 Anchoring holes on the mounting stand...................................................18

Figure 4 OPT100 front parts with Ground Mounting Set.......................................19

Figure 5 OPT100 rear parts with Ground Mounting Set.......................................20

Figure 6 OPT100 dimensions with Ground Mounting Set..................................... 21

Figure 7 OPT100 front parts with Wall Mounting Set............................................24

Figure 8 OPT100 rear parts with Wall Mounting Set..............................................25

Figure 9 OPT100 dimensions with Wall Mounting Set..........................................26

Figure 10 Mounting dimensions of installation beams............................................27

Figure 11 Cable glands and connectors on OPT100 cabinet.................................33

Figure 12 Cable glands and connectors on OPTPSU1 power supply unit..........34

Figure 13 Inside OPT100 DGA Monitor cabinet.........................................................35

Figure 14 Inside OPTPSU1 Power Supply Unit cabinet............................................36

Figure 15 Terminal block Y3 wiring...............................................................................38

Figure 16 Terminal block X5 wiring.............................................................................. 40

Figure 17 Terminal block Y2 wiring................................................................................41

Figure 18 Terminal block X4 wiring.............................................................................. 42

Figure 19 Terminal block Y1 wiring example..............................................................44

Figure 20 Location of the RS-485 repeater inside the DGA monitor cabinet...45

Figure 21 Location of DIP switches on the RS-485 repeater.................................45

Figure 22 RJ45 connector inside the protection shell.............................................47

Figure 23 Terminal block X3 example wiring for normally open

(NO) connection..............................................................................................49

Figure 24 Terminal block X1 wiring................................................................................52

Figure 25 Changing administrator password............................................................. 55

Figure 26 IP address settings page...............................................................................56

Figure 27 Network security settings page..................................................................57

Figure 28 General settings page....................................................................................58

Figure 29 Date and time settings page........................................................................59

Figure 30 Autocalibration page.....................................................................................64

Figure 31 Modbus settings page................................................................................... 65

Figure 32 DNP3 settings page....................................................................................... 66

Figure 33 IEC 61850 settings page................................................................................68

Figure 34 Protocol test mode enabled........................................................................ 69

Figure 35 Alert limits settings page..............................................................................70

Figure 36 Unit settings page............................................................................................71

Figure 37 Relay settings page........................................................................................ 72

List of ﬁgures

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OPT100 Installation Guide M211857EN-K

List of tables

Table 1 Document versions (English)............................................................................5

Table 2 Related manuals................................................................................................... 5

Table 3 Terminal block Y3 wiring..................................................................................38

Table 4 Terminal block X5 wiring.................................................................................40

Table 5 Terminal block Y2 wiring...................................................................................41

Table 6 Terminal block X4 wiring.................................................................................42

Table 7 Terminal block Y1 wiring..................................................................................44

Table 8 DIP switch conﬁguration of RS-485 output............................................... 46

Table 9 Terminal block X3 wiring................................................................................. 49

Table 10 Terminal block X1 wiring...................................................................................52

Table 11 Wiring....................................................................................................................76

Table 12 Conﬁguration.......................................................................................................77

Table 13 Post-installation checklist................................................................................78

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Chapter 1 – About this document

1. About this document

1.1 Version information

Table 1 Document versions (English)

Document code Date Description

M211857EN-K January 2021 Applicable from software version 1.13.0 onwards.

M211857EN-J November 2020 Applicable from software version 1.12.0 onwards.

M211857EN-H July 2020 Applicable from software version 1.11.0 onwards.

Updated sections:

• Grounding DGA monitor (page 36)

• Conﬁguring gas level alerts (page 70)

• Conﬁguring unit settings (page 71)

• DGA monitor conﬁguration report (page 76)

Added sections:

• Conﬁguring unit settings (page 71)

Updated sections:

• Required materials (page 9)

• Dimensions with Wall Mounting Set (page 26)

• Mounting with Wall Mounting Set (page 22)

• OPT100 cable glands and connectors (page 33)

• OPTPSU1 cable glands and connectors (page 34)

• Connecting AC (mains) power (page 50)

• Conﬁguring gas level alerts (page 70)

Added sections:

• Conﬁguring autocalibration (page 64)

• Using protocol test mode (page 69)

Updated sections:

• Initializing DGA monitor (page 60)

1.2 Related manuals

Table 2 Related manuals

Document code Name

M211858EN OPT100 User Guide

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OPT100 Installation Guide M211857EN-K

1.3 Documentation conventions

WARNING!

follow instructions carefully at this point, there is a risk of injury or even death.

CAUTION!

follow instructions carefully at this point, the product could be damaged or important data could be lost.

Note highlights important information on using the product.

Tip gives information for using the product more eciently.

Lists tools needed to perform the task.

Indicates that you need to take some notes during the task.

Warning alerts you to a serious hazard. If you do not read and

Caution warns you of a potential hazard. If you do not read and

1.4 Trademarks

Vaisalaâ is a registered trademark of Vaisala Oyj.

OPTIMUS™ is a trademark of Vaisala Oyj.

Modbusâ is a registered trademark of Schneider Automation Inc.

All other product or company names that may be mentioned in this publication are trade names, trademarks, or registered trademarks of their respective owners.

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2. Planning the installation

2.1 Installation safety

Chapter 2 – Planning the installation

WARNING!

operating the product. If you encounter the following marking during installation or operation, consult product documentation to ﬁnd out the nature of the potential hazards and any actions which have to be taken to avoid them:

WARNING!

must adhere to local and state legislation and regulations.

WARNING!

safety regulations at all times.

WARNING!

instructions. Verify the grounding before and after performing maintenance on the unit.

Read the product documentation carefully before installing or

Only licensed experts may install electrical components. They

Make sure that you prepare and connect only de-energized wires.WARNING!

Keep away from live circuits. Operating personnel must observe

Ground the DGA monitor cabinets as instructed in the wiring

CAUTION!

the documentation. Modiﬁcations may lead to safety hazards, equipment damage, failure to perform according to speciﬁcation, or decreased equipment lifetime.

Do not modify the DGA monitor or use it in ways not described in

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OPT100 Installation Guide M211857EN-K

CAUTION!

below heat up during normal operation. Avoid touching hot surfaces and wear protective gloves when working inside the cabinet. Whenever possible, allow the DGA monitor to cool down before starting the work.

Follow the safety regulations of the installation site.

The safety of any system incorporating this equipment is the responsibility of the assembler.

Surfaces inside DGA monitor that are marked with the symbol

Wear protective eyewear and gloves.

2.2 Installation phases

Perform the installation of the DGA monitor in the following phases:

• Planning

• Mechanical installation

• Electrical installation

• Commissioning

• Installation reporting

These phases correspond to chapters of the Installation Guide. Post-installation checklist is included as part of the installation report template. See Post-installation checklist (page 78).

2.3

Required personnel

Installation of the DGA monitor requires two persons. While most of the installation and commissioning tasks can be done by a single person, safe carrying and lifting of the DGA monitor requires two persons.

Installers must have the necessary training to legally perform all required tasks. For example, connecting the DGA monitor to mains power must be done by a licensed electrician.

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Chapter 2 – Planning the installation

Applicable legislation and site safety guidelines may require additional personnel to be present in the installation.

2.4 Required materials

In addition to the items delivered by Vaisala, installation of the DGA monitor requires various materials that you must supply yourself.

Items delivered by Vaisala

• DGA Monitor (Vaisala item OPT100)

• DGA Monitor cabinet

• Swagelokâ plugs for oil connector ﬁttings (2 pcs, Swagelok part no. SS-10M0-P (316 Stainless Steel Plug for 10 mm Swagelok Tube Fitting))

• Protection shell for RJ45 Ethernet connector

• Relay control cable (marked RELAY, Vaisala cable CBL210539)

• cabinet key

• Power Supply Unit (Vaisala item OPT100PSU)

• Power Supply Unit cabinet

• DC power cable (Vaisala cable CBL210544)

• cabinet key

Optional items (must have either Wall Mounting Set or Ground Mounting Set):

• Wall Mounting Set (Vaisala item OPTMSET1)

• Installation beam (2 pcs)

• Cradle for Power Supply Unit

• Screws and washers

• Ground Mounting Set (Vaisala item OPTMSET2)

• Mounting stand (delivered in three parts)

• Wedge anchors (6 pcs) for securing the mounting stand to ground

• Screws, washers, and nuts

• Weather Shield (Vaisala item OPTSHLD1)

• Weather shield (delivered in three parts)

• Screws and washers

• Tubing adapter, 10 mm to 3/8" (2 pcs, Vaisala item ASM213275SP)

• Tubing adapter, 10 mm to 1/4" (2 pcs, Vaisala item ASM213274SP)

DGA monitor installation and commissioning

Not supplied by Vaisala.

• Grounding cable with 4 … 16 mm2 (12 … 5 AWG) conductor. Enough to reach from the DGA monitor and the power supply unit to the grounding point(s).

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OPT100 Installation Guide M211857EN-K

• AC power cable with 2.5 mm2 (14 AWG) conductor and 9 ... 16 mm (0.35 … 0.63 in) external diameter. Must be compliant with local regulations for mains power cables.

• Relay cable

• RS-485 cable

• Shielded outdoor Ethernet cable with a RJ45 connector for the permanent Ethernet connection

• Laptop computer with:

• RJ45 Ethernet connector

• Web browser (Google Chrome™, Microsoft Internet Explorerâ, or Mozilla Firefoxâ)

• Ethernet cable with RJ45 connectors for temporary use

Oil pipe construction

Not supplied by Vaisala.

The amount of required oil pipe construction materials depends on the intended pipe length. Two pipes are needed, one for intake and one for returning the oil. Using the recommended pipe material, the maximum allowed length of a single pipe is 10 m (33 ft). If you are using a smaller pipe (minimum inner diameter 4 mm (0.157 in)), the maximum length is 5 m (16 ft).

• Recommended oil pipe material: stainless steel tubing with 10 mm (0.39 in) outer diameter and 1 … 1.5 mm (0.039 … 0.059 in) wall thickness. Enough to connect the oil intake and return valves to the DGA monitor.

• Adapters for connecting the oil pipes to the valves on the transformer

• Adapters for connecting the oil pipes to the DGA monitor, if not using the recommended tubing size (10 mm (0.39 in) outer diameter). Optional accessories for connecting 3/8" and 1/4" outer diameter tubing are available from Vaisala.

• Pipe ﬁttings for joining pipe sections

• Pipe supports

• Oil pipe insulation (if necessary due to cold climate)

• Oil absorption material for controlling possible leaks

• Rags for wiping o oil

Mounting using Wall Mounting Set

Not supplied by Vaisala.

• M8 anchors or bolts (suitable for wall material)

Other

Not supplied by Vaisala.

• Personal safety equipment as required by installation site and applicable legislation

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Chapter 2 – Planning the installation

2.5 Recommended tools

Hand tools

• Slotted and crosshead screwdrivers

• Wrenches of various sizes

• Socket wrench and socket set

• Allen keys

• Cutting tools

• Cable stripping tool

• Metal ﬁle

• Measuring tape

• Impact drill and bits

• Spirit level

• Multimeter

Tools for oil pipe construction

• Pipe bending tool

• Pipe cutting tool

• Pipe deburring tool

• Pressurized air, either a bottle or a compressor

• Container for waste oil with at least 5 liter (1.32 gal) capacity

2.6

Storing and transporting DGA monitor

Keep the DGA monitor and any installation accessories in their original packaging during storage and transport. Keep the items dry and in conditions allowed by the storage speciﬁcation. Follow any handling instructions marked on the outside of the packaging.

After installation, store the packaging in a dry place. You can reuse it for storage and transport later.

2.7

Reinstalling DGA monitor

If you want to relocate an already installed DGA monitor, you must prepare it for transport and reinstallation by following the uninstallation procedure. See OPT100 User Guide for details.

2.8

Installation site requirements

DGA monitor can be installed and successfully operated in a wide variety of environments. Note the following special considerations:

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OPT100 Installation Guide M211857EN-K

• Cold environments: Trace heating elements and thermal insulation may need to be placed over the exposed sections of the oil pipes. Required heating power and insulation thickness depends on the pour point of the transformer oil that is used. Temperature of the oil in the lines must exceed the pour point with a reasonable margin in order to keep the oil ﬂowing normally during operation.

• Hot environments: Weather shield installation option will reduce the solar radiation load on the DGA monitor. Consider placing the DGA monitor in a location that is not exposed to direct sunlight.

• Operating altitude: DGA monitor is intended for use in altitude range -1000 … 3000 m.

If you have any questions, contact Vaisala for more information.

Performing a site inspection in person is a good idea. Take photographs of the intended installation location, oil connections, and electrical connections. Measure the amount of cable and oil pipe needed.

2.8.1 Installation location of DGA monitor

DGA monitor can be attached to the transformer chassis or to its immediate vicinity. The location must fulﬁll the following requirements:

• The location must be close to the oil connections to minimize the length of the oil lines. The maximum length of the lines is 10 m (33 ft) each.

• The location must be safely accessible from the ﬂoor without the need to climb or reach.

• There must be enough room and suitable supporting structures to install the DGA monitor in a vertical orientation. The DGA monitor must not be tilted more than 5 degrees.

• If the Ground Mounting Set is used, there must be a level concrete surface that is at least 100 mm thick.

If you have many suitable locations, prefer the following:

• Locations that are protected from rain and solar radiation.

• Locations where the vibration and heat from the transformer are not directly conducted to the DGA monitor.

2.8.2 Recommended locations of oil connections

DGA monitor needs to pump oil out of the transformer and return it after each measurement cycle. It is important that the oil is clean and from a representative location in the transformer, and the same oil volume is not measured repeatedly.

The oil volume needed for a single measurement cycle is slightly more than one liter. To make it possible to pump a new sample and return the measured oil without mixing them up, you must build two oil lines between the DGA monitor and the transformer. Consider the following when selecting the locations of the oil connections in the transformer and preparing for the installation:

• The recommended arrangement is to use two valves in dierent locations on the transformer. This improves oil circulation inside the transformer and prevents the returned oil from immediately mixing with the next sample.

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Chapter 2 – Planning the installation

• Use the same valve for oil intake that has been previously used to take oil samples. This makes the measurements results of the DGA monitor more comparable with previous laboratory analysis results. After the oil lines are connected, you will not be able to take oil samples from the valves. Consider adding a new sampling valve to the intake oil line if you need to continue taking oil samples.

• Check if the transformer circulates its oil by forced convection. Oil ﬂow inside the transformer makes the sampled oil more representative of the overall oil volume. It is also useful if you have to use two valves that are close together, as it carries the returned oil away from the valve.

• It is possible to use a T-joint to connect both lines to a single valve but the T-joint must be close to the transformer − no farther than one meter (3 ft) from the valve. If a T-joint is used, the transformer should be of a type that circulates its oil.

• Check the type of connection thread on the valves, and make sure you have appropriate adapters for connecting the oil lines to the valves.

• The maximum allowed length of an oil line is 10 m (33 ft).

Some typically available locations of oil connections are presented in Figure 1 (page 13).

Figure 1 Possible locations of oil connections

Oil reservoir. Do not use.

1 2 Side of the oil tank, top level. Suitable location for oil connection if the valve is under oil

level at all times.

3 Side of the oil tank, high enough from the bottom to enable proper oil movement. Suitable

location for oil connection.

4 Radiator and its pipes. Suitable location if there is guaranteed continuous oil ﬂow in the

radiator. Not recommended if there is no forced circulation or circulation is not continuous.

5 Drain valve of the oil tank. Not recommended due to risk of sludge and free water.

Measurement from the bottom of the tank is also not representative for moisture measurement.

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OPT100 Installation Guide M211857EN-K

CAUTION!

sludge or free water present.

DGA monitor needs to pump oil in both directions during initialization and maintenance. To make sure this is possible, check that:

• Intake and return valves are both below oil level in the transformer. There should be no risk of drawing gas into the oil lines even when the ﬂow is reversed.

• There are no ﬂow direction control valves on the oil lines.

Operate the selected valves and make sure the oil is clean with no

2.8.3 Network security

DGA monitor is intended to be connected to a secure SCADA network that is appropriately protected against security threats. Do not connect the DGA monitor directly to the Internet.

The second Ethernet port of the DGA monitor (marked ETH1) is for temporary local use only.

2.9

Regulatory compliances

OPT100 DGA monitor is in conformity with the provisions of the following EU directives:

• EMC Directive

• Low Voltage Directive

OPT100 is speciﬁcally designed to be installed as part of another type of equipment that is excluded from the RoHS directive (2011/65/EU) scope.

The conformity is declared with using the following standards:

• EN 61326-1: Electrical equipment for measurement, control, and laboratory use – EMC requirements – intended for use in industrial locations.

• EN 55032: Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement.

• EN 61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements.

2.9.1 FCC Part 15 compliance statement

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.

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Chapter 2 – Planning the installation

CAUTION!

by the party responsible for compliance could void the user's authority to operate the equipment.

Changes or modiﬁcations to this equipment not expressly approved

2.9.2 Canada ICES-003 compliance statement

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

Cet appareil numerique de la classe A est conforme a la norme NMB‑003 du Canada.

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OPT100 Installation Guide M211857EN-K

3. Mechanical installation

3.1 Unpacking DGA monitor

• Wire cutters

Two persons are required to lift the DGA monitor out of the packaging.

1. Cut the packing straps and remove the cover.

2. Remove the top padding from the box.

3. Lift the DGA monitor out of the box and set it down on a stable surface so that the door side is on top.

CAUTION!

located on the bottom of the cabinet. When unpacking and moving the DGA monitor, avoid putting the bottom of the DGA monitor on the ground. Putting the weight of the unit on the cable glands and oil connections may damage them.

The cable glands and oil connections of the DGA monitor are

3.2 Mounting with Ground Mounting Set

• Ground Mounting Set (Vaisala item OPTMSET2)

• Mounting stand (delivered in three parts)

• Wedge anchors (6 pcs) for securing the mounting stand to ground

• Screws, washers, and nuts

• 6-mm Allen key

• 13-mm wrench

• Impact drill and bits

Use the Ground Mounting Set when a free standing installation of the DGA monitor is needed. The mounting surface must allow the use of wedge anchors to secure the mounting stand. A concrete surface that is at least 100 mm thick is recommended.

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Chapter 3 – Mechanical installation

Figure 2 Assembly of the mounting stand

Mounting holes on the top are for attaching the DGA monitor.

1 2 Mounting holes on the side join the parts of the mounting stand together. 3 Holes on the bottom (three on each side) are for anchoring the mounting stand to the

4 Attach the power supply unit to the middle part using these four holes.

1. Assemble the mounting stand. Tighten the screws to ﬁnger tightness at this point, not all

ground.

the way.

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mm [in]

510 [20.08]

140

[5.51]

140

[5.51]

OPT100 Installation Guide M211857EN-K

2. Using the assembled mounting stand as the template, mark the locations of the six anchors on the mounting surface. If the mounting location is at the edge of a concerete slab, leave at least 10 cm (4 in) clearance to the edge.

Figure 3 Anchoring holes on the mounting stand

3. Drill holes for the anchors using an impact drill and an 8 mm (.315 in) drill bit. The holes must be 60 mm (2.36 in) deep.

4. Install the anchors in the holes.

5. Attach the mounting stand to the anchors.

6. Verify that the mounting stand is securely anchored.

7. Attach DGA monitor to the top of the mounting stand.

8. Tighten the screws to 20 Nm tightness.

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3.2.1 Parts with Ground Mounting Set

Chapter 3 – Mechanical installation

Figure 4 OPT100 front parts with Ground Mounting Set

Status LEDs

1 2 OPT100 DGA Monitor 3 Door lock (3 pcs) 4 Power supply unit 5 Door lock 6 Mounting stand 7 Wedge anchors (6 pcs)

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OPT100 Installation Guide M211857EN-K

Figure 5 OPT100 rear parts with Ground Mounting Set

Weather shield

1 2 Cable glands and oil connections for DGA Monitor 3 Cable glands for power supply unit

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mm [in]

1552 [61.10]

1630 [64.17]

675 [26.57]

550 [21.65]

700 [27.56]

280 [11.02]

580 [22.83]

400 [15.75]

350 [13.78]

453 [17.83]

35 [1.38]

140

[5.51]

[0.79]

510 [20.08]

140

[5.51]

3.2.2 Dimensions with Ground Mounting Set

Chapter 3 – Mechanical installation

Figure 6 OPT100 dimensions with Ground Mounting Set

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OPT100 Installation Guide M211857EN-K

3.3 Mounting with Wall Mounting Set

• Wall Mounting Set (Vaisala item OPTMSET1)

• Installation beam (2 pcs)

• Cradle for Power Supply Unit

• Screws and washers

• M8 anchors or bolts (suitable for wall material)

• 6-mm Allen key

CAUTION!

Also account for possible vibrations and other sources of additional mechanical stress. Use anchors or bolts that are suitable for the wall material at the installation location. Note that they are not included with the Wall Mounting Set.

1. Attach one of the installation beams to the mounting location, at a height where you want the top of the OPT100 cabinet to be. Make sure it is securely attached from at least two points, and can bear the full weight of the DGA monitor.

2. Attach the second installation beam at the height of the second set of mounting holes.

3. Attach screws with washers to the top mounting holes of each pair on the sides of the OPT100 cabinet (four screws in total). Tighten them enough to safely bear the weight of the cabinet but not all the way in. The second hole of each set must remain free at this point.

4. With two people lifting, lift the OPT100 cabinet up and hang it from installation beams by the screws. If the lower installation beam is not at the correct height, re-attach it at the correct height before attempting this step again.

5. Tighten the four screws to secure the cabinet in place.

Use enough anchors or bolts to ﬁll local safety factor requirements.

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Chapter 3 – Mechanical installation

6. Add a second screw (with washer) below each of the installed screws, and tighten them. The cabinet is now secured to the installation beams by a total of eight screws.

1 Installation beam mounting screws. 2 Leave second set of mounting holes

free for weather shield installation.

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OPT100 Installation Guide M211857EN-K

3.3.1 Parts with Wall Mounting Set

Figure 7 OPT100 front parts with Wall Mounting Set

Status LEDs

1 2 OPT100 DGA Monitor 3 Door lock (3 pcs) 4 Power supply unit 5 Door lock

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Chapter 3 – Mechanical installation

Figure 8 OPT100 rear parts with Wall Mounting Set

Installation beam (upper)

1 2 Weather shield 3 Installation beam (lower) 4 Cable glands for DGA Monitor 5 Cradle for power supply unit 6 Cable glands for power supply unit

Page 28

1390 [54.72]

675 [26.57]

1307 [51.46]

550 [21.65]

467 [14.45]

461 [18.15]

Minimum

mm [in]

400 [15.75]

OPT100 Installation Guide M211857EN-K

3.3.2 Dimensions with Wall Mounting Set

Figure 9 OPT100 dimensions with Wall Mounting Set

Page 29

mm [in]

523

[20.59]

570

[22.44]

110 [4.33]

274

[10.79]

Installation beam symmetry lines

Ø 8.50 holes for M8 anchors or bolts

30 [1.18]

50 [1.97]

25 [0.98]

75 [2.95]

125 [4.92]

175 [6.89]

225 [8.86]

Chapter 3 – Mechanical installation

Figure 10 Mounting dimensions of installation beams

Page 30

OPT100 Installation Guide M211857EN-K

3.4 Installing oil lines

• Adapters for connecting the oil pipes to the valves on the transformer

• Pipe ﬁttings for joining pipe sections

• Pipe supports

• Pipe bending tool

• Pipe cutting tool

• Pipe deburring tool

• Pressurized air, either a bottle or a compressor

• Wrenches of various sizes

• Container for waste oil with at least 5 liter (1.32 gal) capacity

CAUTION!

• Keep parts and tools clean and o the ground. Dirty parts may contaminate the transformer oil or cause connections to leak.

• Use new Swagelokâ adapters (nuts and ferrules) when making new connections. Do not use third party adapters or used parts from a dierent connection. Opening and retightening existing oil line connections without changing the nuts and ferrules is OK as long as the parts appear intact and you can verify the connections do not leak. Swagelok part code for the included 10-mm pipe adapters is SS-10M0-NFSET.

• If you are unsure about the proper use of ﬁttings and adapters, refer to their manufacturer's instructions online.

If the DGA monitor is mounted using the wall mounting set, the power supply unit will be attached by a mounting cradle. Make sure you are not routing the oil lines so that they will obstruct the power supply unit attachment. See Attaching power

supply unit (page 31).

Before starting to install the oil lines, see Recommended locations of oil connections (page 12) for important information and recommendations.

When working with oil pipes, ﬁttings, and adapters:

Wear protective eyewear and gloves.

Page 31

Chapter 3 – Mechanical installation

1. Inspect and prepare the selected inlet and outlet oil valves on the transformer:

a. If there are any ﬂow direction control valves previously installed, remove them. The

DGA monitor needs to pump oil in both directions during initialization, and this will not work if there are ﬂow direction controllers in the oil lines.

b. Clean any loose dirt from the outside and inside of the oil valves on the transformer.

c. Drain some oil from the selected valves into the waste oil container. Verify that the oil

is clean and there is no sludge coming out with the oil. If sludge is present, do not use that valve to connect the DGA monitor.

2. Install the adapters to the inlet and outlet valves on the transformer to match them to the size of the oil pipe material.

3. Measure the distance from the oil valves to the DGA monitor, and plan the length and shape of the oil pipe sections. Minimize the amount of joints.

4. Cut and bend the oil pipe to appropriate sections for building the oil lines.

5. Remove any sharp edges from the cut surfaces.

6. Clean any metal shavings from inside the pipes using pressurized air.

7. Build the oil lines between the valves and the oil connections on the DGA monitor marked Oil In and Oil Out.

CAUTION!

Make sure that both oil connections on the transformer are below oil level. There must be no risk of drawing gas into the oil lines even when the ﬂow is reversed.

8. Remove the plugs from the pipe ﬁttings on the DGA monitor and store them for possible later use. Check that the ﬁttings are clean.

Page 32

OPT100 Installation Guide M211857EN-K

9. Connect both oil lines to the ﬁttings on the DGA monitor. Use the supplied Swagelokâ adapters (delivered in a separate bag).

a. Insert the nut of the adapter over the oil pipe. b. Insert the two ferrules over the pipe. Make sure they are in the order and orientation

shown below. c. Push the pipe into the ﬁtting on the DGA monitor and rotate the nut ﬁnger-tight. d. Mark the nut position. e. Hold the base of the oil ﬁtting with a second wrench to keep it from turning when

tightening.

f. Tighten the nut 1 1/4 turns with a wrench.

If you are not using the recommended oil pipe size, install adapters into the oil connections ﬁrst. Then connect the oil pipe to the adapter.

1 Oil ﬁtting on the DGA monitor 2 Front ferrule 3 Back ferrule 4 Nut of the adapter 5 Oil pipe

10. Install pipe supports where necessary to support the pipe mechanically. The pipe should be supported at least every two meters (six feet).

11. If necessary due to cold climate, install insulation over the oil pipes.

Page 33

Chapter 3 – Mechanical installation

To verify that the oil connections are tight, check for leaks during commissioning when the DGA monitor is pumping oil. Ideally, check the connections again after the DGA monitor has been running for some time (for example, the next day).

3.5 Attaching power supply unit

• 6-mm Allen key

1. If the Ground Mounting Set is used:

a. Attach the power supply unit to the middle of the mounting stand.

2. If the Wall Mounting Set is used:

a. Attach the power supply unit to the cradle.

b. Support the power supply unit and cradle and attach them to the bottom of the

OPT100 cabinet.

3.6

Attaching weather shield

• Weather Shield (Vaisala item OPTSHLD1)

• Weather shield (delivered in three parts)

• Screws and washers

Page 34

OPT100 Installation Guide M211857EN-K

1. Attach the weather shield to the OPT100 cabinet:

a. Attach the left side panel. Note that the panels have an assigned side, they are not

identical.

b. Attach the right side panel.

c. Verify that all screws holding the side panels of the weather shield are tight.

d. Attach the top panel.

Page 35

1 2 3 4 5 6 7

8 9

Chapter 4 – Electrical installation

4. Electrical installation

4.1 OPT100 cable glands and connectors

Figure 11 Cable glands and connectors on OPT100 cabinet

Label Description Cable/pipe

1 Oil Out Oil return to transformer. 10 mm (0.39 in) 19 mm

2 Oil In Oil intake from transformer. 10 mm (0.39 in) 19 mm

3 Ground connection.

4 RS-485 RS-485 connection. 5 … 10 mm

5 Relay control

out

6 DC in DC input from OPTPSU1. Use Vaisala cable

7 Ethernet Ethernet connection. Use shielded outdoor

8 Spare Not reserved. 5 … 10 mm

Relay control to OPTPSU1. Use Vaisala cable CBL210539.

CBL210544.

Ethernet cable. Assemble the included protection shell on the RJ45 connector.

9 Spare Not reserved. 7 … 12 mm

diameter

4 … 16 mm (12 … 5 AWG) conductor

(0.20 … 0.39 in)

7 … 12 mm (0.28 … 0.47 in)

9 … 16 mm (0.35 … 0.63 in)

- -

(0.20 … 0.39 in)

(0.28 … 0.47 in)

Wrench size

13 mm

20 mm

24 mm

30 mm

20 mm

24 mm

Page 36

1 2 3 4 5 6 7

OPT100 Installation Guide M211857EN-K

4.2 OPTPSU1 cable glands and connectors

Figure 12 Cable glands and connectors on OPTPSU1 power supply unit

Label Description Cable diameter Wrench

1 Ground connection.

2 AC in Mains power input. 100 … 240 V ac,

50 … 60 Hz, 10 A.

3 Spare Not reserved. 5 … 10 mm

4 Spare Not reserved. 5 … 10 mm

5 Relay out Relay output, max 250 V ac, 10 A. 7 … 12 mm

6 Relay control inRelay control from DGA monitor. Use

Vaisala cable CBL210539.

7 DC out DC output to DGA monitor, 24 V dc, 20 A.

Use Vaisala cable CBL210544.

4 … 16 mm (12 … 5 AWG) conductor

9 … 16 mm (0.35 … 0.63 in)

(0.20 … 0.39 in)

(0.28 … 0.47 in)

7 … 12 mm (0.28 … 0.47 in)

9 … 16 mm (0.35 … 0.63 in)

size

13 mm

30 mm

20 mm

24 mm

30 mm

Page 37

1198 1210

Chapter 4 – Electrical installation

4.3 Interior parts

Figure 13 Inside OPT100 DGA Monitor cabinet

1 Valve 5 (bleed valve). Must be

manually accessed during

initialization and uninstallation.

2 Valve 4 3 Oil block 4 Valve 3 5 Valve 2 6 Valve 1 7 In-oil measurement of hydrogen and

moisture

8 Oil out 9 Oil in 10 Terminal blocks for RS-485 output

(Y1) and relay control (Y2)

11 Circuit breakers for DC power: main

breaker (F2) and breaker for heating

power (F1)

12 Terminal block for DC in (Y3) 13 Surge arresters 14 Ethernet connectors:

ETH0 Connection for SCADA, wired

to external Ethernet connector

ETH1 Service port for temporary

local use, with IP address

15 Processing unit 16 Control unit 17 Optical measurement module for

192.168.28.2

extracted gases

Page 38

123

465

9108

OPT100 Installation Guide M211857EN-K

Figure 14 Inside OPTPSU1 Power Supply Unit cabinet

1 Circuit breaker for AC power (F1) 2 Surge arresters 3 Power switch (S1) 4 Power supply 5 Relays (3 pcs). Each relay has a LED

that is lit when the relay is active.

6 DC OK LED. If ﬂashing, check DC

wiring.

7 DC out terminal block (X5) 8 Relay control terminal block (X4) 9 Relay output terminal block (X3) 10 Mains power in terminal block (X1)

4.4 Grounding DGA monitor

• Grounding cable with 4 … 16 mm2 (12 … 5 AWG) conductor. Enough to reach from the DGA monitor and the power supply unit to the grounding point(s).

• Cable stripping tool

• Crosshead screwdriver

• Metal ﬁle

• Multimeter

1. Locate the ground terminals on the underside of the DGA monitor and the power supply unit, and ﬁnd a good grounding point on the transformer or the surrounding structures. See OPT100 cable glands and connectors (page 33) and OPTPSU1 cable glands and

connectors (page 34).

2. Clean the grounding point of rust for a good connection.

3. Ground the DGA monitor:

a. Run the cable from the ground terminal to the grounding point, and secure it so it

does not hang loose.

b. Connect the cable to the grounding point on the DGA monitor.

c. Connect the other end of the cable to the grounding point.

d. Measuring the resistance from the ground terminal to the grounding point to verify

the grounding.

4. Repeat step 3 to ground the power supply unit as well.

Page 39

Chapter 4 – Electrical installation

4.5 Connecting DC power to DGA monitor

• DC power cable (Vaisala cable CBL210544)

• Screwdriver with 3-mm-wide (0.12 in) slotted head

• Adjustable wrench

1. Open the cable gland marked DC in on the DGA monitor. Remove the plug and store it for later use.

2. Insert the DC power cable through the outer nut and the seal insert, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

3. Bend the cable braid over the seal insert so that it will make contact with metal when the cable gland is tightened.

4. Push the outer nut and the seal insert against the contact socket of the gland and tighten the outer nut.

Page 40

24 V dc +

Ground

24 V dc −

+ −

BLK/RED

BLK

GRN/YEL

OPT100 Installation Guide M211857EN-K

5. Inside the DGA monitor, connect the wires to terminal block Y3:

Table 3 Terminal block Y3 wiring

Signal Wire color

Vaisala cable CBL210544

24 V dc + Black with red marking +

24 V dc − Black −

Ground Green/yellow

Figure 15 Terminal block Y3 wiring

Terminal

6. Open the cable gland marked DC out on the power supply unit. Remove the plug and store it for later use.

7. Insert the DC power cable through the outer nut and the seal insert, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

Page 41

Chapter 4 – Electrical installation

8. Bend the cable braid over the seal insert so that it will make contact with metal when the cable gland is tightened.

9. Push the outer nut and the seal insert against the contact socket of the gland and tighten the outer nut.

Page 42

24 V dc +

Ground

24 V dc −

BLK/RED

BLK

GRN/YEL

+ −

OPT100 Installation Guide M211857EN-K

10. Inside the power supply unit, connect the wires to terminal block X5:

Table 4 Terminal block X5 wiring

Signal Wire color

Vaisala cable CBL210544

24 V dc + Black with red marking +

24 V dc − Black −

Ground Green/yellow

Figure 16 Terminal block X5 wiring

Terminal

4.6

Connecting relay control to power supply unit

• Relay control cable (marked RELAY, Vaisala cable CBL210539)

• Screwdriver with 3-mm-wide (0.12 in) slotted head

• Adjustable wrench

1. Open the cable gland marked Relay control out on the DGA monitor. Remove the plug and store it for later use.

2. Insert the relay control cable through the outer nut and the seal insert, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

Page 43

Relay 1

Relay 2

Relay 3

1 3 5

2 4 6

BRN

WHT

YEL

GRN

PNK

GRY

Chapter 4 – Electrical installation

3. Bend the cable braid over the seal insert so that it will make contact with metal when the cable gland is tightened.

4. Push the outer nut and the seal insert against the contact socket of the gland and tighten the outer nut.

5. Inside the DGA monitor, connect the wires to terminal block Y2:

Table 5 Terminal block Y2 wiring

Signal Wire color

Vaisala cable CBL210539

Relay 1 control + White 1

Relay 1 control − Brown 2

Relay 2 control + Green 3

Relay 2 control − Yellow 4

Relay 3 control + Grey 5

Relay 3 control − Pink 6

Terminal

Figure 17 Terminal block Y2 wiring

6. Open the cable gland marked Relay control in on the power supply unit. Remove the plug and store it for later use.

7. Insert the relay control cable through the outer nut and the seal insert, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

Page 44

BRN

WHT

YEL

GRN

PNK

GRY

Relay 1

Relay 2

Relay 3

9 8

6 5 4

OPT100 Installation Guide M211857EN-K

8. Bend the cable braid over the seal insert so that it will make contact with metal when the cable gland is tightened.

9. Push the outer nut and the seal insert against the contact socket of the gland and tighten the outer nut.

10. Inside the power supply unit, connect the wires to terminal block X4:

Table 6 Terminal block X4 wiring

Signal Wire color

Vaisala cable CBL210539

Relay 1 control + White 2

Relay 1 control − Brown 3

Relay 2 control + Green 5

Relay 2 control − Yellow 6

Relay 3 control + Grey 8

Relay 3 control − Pink 9

Terminal

Figure 18 Terminal block X4 wiring

Page 45

Chapter 4 – Electrical installation

4.7 Connecting RS-485 serial line

• RS-485 cable

• Screwdriver with 3-mm-wide (0.12 in) slotted head

• Cable stripping tool

Default settings of the RS-485 line are;

• Baud rate: 19200

• Transmission mode: 8E1

• Modbus slave ID: 240

1. Open the cable gland marked RS-485 on the DGA monitor. Remove the plug and store it for later use.

2. Prepare the cable for connection:

a. Measure how much cable you need to reach from the cable gland to terminal block

Y1.

b. Remove the outer sheath and cable braid from the part of the cable that will be left

inside the DGA monitor.

c. Strip the ends of the individual wires to expose the conductors for 1 cm (0.4 in).

d. Remove some more of the outer sheath to expose more cable braid. This part of the

braid should be connected to the cable gland.

3. Insert the cable through the outer nut and the inner seal, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

4. Arrange the cable braid so that it makes contact with the cable gland when it is closed. Push the inner seal in place and tighten the outer nut.

Page 46

RS-485 +

RS-485 −

Common

1 3 5

2 4 6

BLU/WHT

BLU

BRN

OPT100 Installation Guide M211857EN-K

5. Inside the DGA monitor, connect the wires to terminal block Y1:

Verify the wiring colors of your cable before making any connections.

Table 7 Terminal block Y1 wiring

Signal Terminal

RS-485 + 1

RS-485 − 3

Common 5

Figure 19 Terminal block Y1 wiring example

Page 47

Chapter 4 – Electrical installation

4.7.1 RS-485 termination and biasing

Use of termination and bias resistors on the RS-485 line is conﬁgured using DIP switches on the isolated RS-485 repeater. Change their conﬁguration if necessary for your system. See

Table 8 (page 46).

Figure 20 Location of the RS-485 repeater inside the DGA monitor cabinet

There are two banks of DIP switches on the underside of the RS-485 repeater. Switches for conﬁguring the RS-485 output are at the front of the repeater, next to the grounding terminal (green screw).

Figure 21 Location of DIP switches on the RS-485 repeater

1 DIP switches for conﬁguring the

RS-485 output.

2 DIP switches for conﬁguring the

internal serial connection. Do not change the settings of this bank.

Page 48

OPT100 Installation Guide M211857EN-K

Table 8 DIP switch conﬁguration of RS-485 output

Switch number Result

Switch 1 Switch 2 Switch 3 Switch 4 Communication mode

ON ON ON ON RS-485 2-wire half-duplex (default)

ON OFF OFF OFF RS-485 4-wire full-duplex

OFF OFF OFF OFF RS-422 full-duplex

Switch 5 Termination resistor

ON Use built-in 120 Ω termination

OFF Use external or no termination (default)

Switch 6 Transmit bias resistor

ON Use external or no bias resistor

OFF Use built-in 1.2 kΩ transmit bias resistor (default)

Switch 7 Receive bias resistor

ON Use external or no bias resistor (default)

OFF Use built-in 1.2 kΩ receive bias resistor

Switch 8 is not used.

CAUTION!

DGA monitor is wired for 2-wire communication so do not change

the communication mode.

4.8 Connecting Ethernet

• Shielded outdoor Ethernet cable with a RJ45 connector for the permanent Ethernet connection

• Protection shell for Ethernet connector

Ethernet connector ETH1 inside the DGA monitor is intended for temporary local use only. For a permanent network connection, use the Ethernet connector under the DGA monitor.

Page 49

Chapter 4 – Electrical installation

1. Assemble the protection shell over the RJ45 connector on your Ethernet cable. Assemble according to Code A: see instructions on top of the bag that contains the parts.

CAUTION!

protection rating of the cabinet.

Figure 22 RJ45 connector inside the protection shell

2. Open the plug marked Ethernet under the DGA monitor.

3. Plug in the Ethernet cable.

4. Tighten the connector by hand.

You must use the protection shell to maintain the ingress

4.9

Connecting relays

• Relay cable

• Screwdriver with 3-mm-wide (0.12 in) slotted head

• Adjustable wrench

Maximum switching current of the relays:

• 6 A (at 250 V ac)

• 2 A (at 24 V dc)

• 0.2 A (at 250 V dc)

Page 50

OPT100 Installation Guide M211857EN-K

Operation of relay outputs is available from software version 1.4.0 onwards.

1. Open the cable gland marked Relay out on the power supply unit. Remove the plug and store it for later use.

2. Prepare the cable for connection:

a. Measure how much cable you need to reach from the cable gland to terminal block

X3.

b. Remove the outer sheath and cable braid from the part of the cable that will be left

inside the power supply unit.

c. Strip the ends of the individual wires to expose the conductors for 1 cm (0.4 in).

d. Remove some more of the outer sheath to expose more cable braid. This part of the

braid should be connected to the cable gland.

3. Insert the relay cable through the outer nut and the inner seal, and start inserting the cable through the cable gland. Stop when you reach the section of the cable where the metal braid is exposed.

4. Arrange the cable braid so that it makes contact with the cable gland when it is closed. Push the inner seal in place and tighten the outer nut.

Page 51

BRN

WHT

YEL

GRN

PNK

GRY

Relay 1

Relay 2

Relay 3

9 8

6 5

Chapter 4 – Electrical installation

5. Inside the power supply unit, connect the wires to terminal block X3. Wire the connection as normally open (NO) or normally closed (NC) according to the table below.

Verify the wiring colors of your cable before making any connections.

Table 9 Terminal block X3 wiring

Signal Terminal

Relay 1 NC 1

Relay 1 common 2

Relay 1 NO 3

Relay 2 NC 4

Relay 2 common 5

Relay 2 NO 6

Relay 3 NC 7

Relay 3 common 8

Relay 3 NO 9

Figure 23 Terminal block X3 example wiring for normally open (NO) connection

Page 52

OPT100 Installation Guide M211857EN-K

4.10 Connecting AC (mains) power

• AC power cable with 2.5 mm2 (14 AWG) conductor and 9 ... 16 mm (0.35 … 0.63 in) external diameter. Must be compliant with local regulations for mains power cables.

• Cable stripping tool

• Screwdriver with 3-mm-wide (0.12 in) slotted head

• Adjustable wrench

WARNING!

must adhere to local and state legislation and regulations.

WARNING!

safety regulations at all times.

WARNING!

the cable gland marked AC in, you can use either of the two cable glands marked Spare (diameter 5 ... 10 mm (0.2 … 0.39 in)). If you are not wiring any relay outputs, you can also use cable gland marked Relay out (diameter 7 ... 12 mm (0.28 … 0.47 in)). If the AC in cable gland is left unused, remember to plug it so that the cabinet remains tight. If the power supply unit has no suitable cable gland free, you can replace the cable gland marked AC in with a certiﬁed cable gland that is suitable for protecting the cable and providing strain relief.

1. Install an external disconnection device for the AC power connection (for example, a circuit breaker). Note the following:

• The disconnection device must be rated 16 A or 20 A at 250 V ac, and must conform to any additional local regulations.

• The disconnection device must be visible from the DGA monitor, or lockable with a key to prevent accidental switching on during installation and maintenance.

• The DGA monitor should not block access to the disconnection device after it has been installed. The disconnection device should remain easy to operate.

2. Clearly mark the disconnection device as the disconnection device for the OPT100 DGA Monitor.

Only licensed experts may install electrical components. They

Make sure that you prepare and connect only de-energized wires.WARNING!

Keep away from live circuits. Operating personnel must observe

If the diameter of your mains power cable is not compatible with

Page 53

Chapter 4 – Electrical installation

3. Make sure the external disconnection device is turned o. If possible, lock it in the o position.

4. Run the AC cable between the external disconnection device and the power supply unit of the DGA monitor.

5. Connect the AC cable to the external disconnection device.

6. Open the cable gland marked AC in on the power supply unit. Remove the plug and store it for later use.

7. Prepare the cable for connection to the power supply unit:

a. Strip 14 cm (5.51 in) of the AC cable to expose the wires.

b. Cut o 2 cm (0.79 in) of the line and neutral wires (brown and blue). Leave the green

and yellow grounding wire 14 cm (5.51 in) long.

CAUTION!

Make sure that the grounding wire is longer than the line and neutral wires. Under mechanical stress, the grounding wire must be the last to disconnect from the protective ground terminal.

c. Strip the ends of the individual wires to expose the conductors for 1 cm (0.4 in).

8. Insert the cable through the outer nut and the inner seal.

9. Start inserting the cable through the cable gland, and stop when the unstripped cable is visible through the gland.

Page 54

Line

Neutral

Earth

BRN

BLU

GNR/YEL

L N

OPT100 Installation Guide M211857EN-K

10. Inside the power supply unit, connect the wires to terminal block X1:

CAUTION!

surge protection of the DGA monitor will not function appropriately. If you are uncertain which wire is line and which is neutral, make sure by measuring their potential with respect to ground.

Table 10 Terminal block X1 wiring

Signal Wire color Terminal

Line Brown L

Neutral Blue N

Ground Green/yellow

Figure 24 Terminal block X1 wiring

Line and neutral must be connected to the correct terminals or

11. Tighten the AC in cable gland. The cable gland is also the strain relief for the cable, so make sure the gland holds the cable tight.

4.11

Verifying tightness of cable glands

• Adjustable wrench

Page 55

Chapter 4 – Electrical installation

To maintain cabinet tightness and provide strain relief to the cables, all cable glands on the DGA monitor and the power supply unit must be tightened. Unused cable glands must remain plugged.

1. Check every cable gland that is in use: a. Pull on the cable slightly to verify that the cable is securely held by the cable gland. b. Tighten the cable gland if the cable moves easily.

2. Check that every unused cable gland is plugged and tightened.

Page 56

OPT100 Installation Guide M211857EN-K

5. Commissioning

5.1 Turning on DGA monitor

CAUTION!

turning it on.

CAUTION!

power to the DGA monitor immediately and inspect the AC and DC power wiring. The circuit breakers may be tripping because of a loose wire or incorrect connection.

1. Verify that the circuit breakers Main and Heat inside the DGA monitor are turned on.

2. Turn on AC power from the external disconnection device.

3. Turn on the circuit breaker F1 Main and switch S1 inside the power supply unit.

4. Check the DC OK LED on the power supply:

• If the LED is lit solid green, DC power to the DGA monitor is successfully turned on.

• If the LED keeps blinking, it is likely that the 24 V dc connection to DGA monitor is wired incorrectly. Turn o switch S1 and AC power, and correct the problem before attempting to power on the DGA monitor again.

5.2

Connecting to user interface

• Laptop computer with:

• Ethernet cable with RJ45 connectors for temporary use

• Administration password for this DGA Monitor

Verify that the DGA monitor is fully wired and grounded before

If the circuit breakers will not stay in the ON position, turn o AC

• RJ45 Ethernet connector

• Web browser (Google Chrome™, Microsoft Internet Explorerâ, or Mozilla Firefoxâ)

1. Connect your computer to the same network as the DGA monitor. If you are connecting locally, connect the network cable between your computer and the port marked ETH1 on the processing unit inside the DGA monitor.

Page 57

Chapter 5 – Commissioning

2. Open a web browser on the computer, and enter the IP address of the DGA monitor in the address bar:

• If you are connecting locally through the ETH1 port, use the following IP address:

192.168.28.2

• If you are connecting through the network meant for SCADA integration, use the IP address that has been assigned to the DGA monitor.

3. Your web browser may warn you that your connection is not secure. This is expected and happens when the user interface of the DGA monitor is secured using a certiﬁcate that is not trusted by your browser. Since the user interface is secured using a self-signed certiﬁcate by default, this will always happen for new devices. If you know that user interface security has not been conﬁgured to use a trusted certiﬁcate, continue regardless of the warning. HTTPS trac is always encrypted even if the certiﬁcate is not trusted.

4. Select Admin as the user name.

5. Enter the unique administration password for this DGA monitor. The password is included in the delivery documentation.

6. Select Log in. The user interface opens in your browser.

5.3

Changing administrator password

CAUTION!

Vaisala Support to reset it for you.

Figure 25 Changing administrator password

If you forget your administrator password, you need to contact

Page 58

OPT100 Installation Guide M211857EN-K

1. In the top right corner of the user interface, select Admin > Change password.

2. Enter the current password in the Current password ﬁeld.

3. Enter the new password in the New password and Conﬁrm new password ﬁelds. The new password must be at least 8 characters long.

4. Select Save to commit the password change.

5.4

Conﬁguring network connection

Figure 26 IP address settings page

This procedure conﬁgures the network settings of the external Ethernet connection.

1. In the user interface, select Settings > Network > IP Address.

2. Select how the IP address of the external Ethernet connection is assigned: DHCP for automatic assignment, and Static IP Address to enter the values manually.

Page 59

Chapter 5 – Commissioning

3. If you selected Static IP Address, enter the following values:

• IP Address

• Subnet Mask

• Default Gateway

4. Select Apply to save your changes.

5.5 Conﬁguring user interface security

Figure 27 Network security settings page

This procedure conﬁgures HTTPS encryption for the user interface connection. By default, DGA monitor only allows encrypted connections to the user interface (HTTPS) using a selfsigned certiﬁcate. Any connections that request unencrypted communication (HTTP) are redirected to the encrypted interface (HTTPS).

The default self-signed certiﬁcate is not trusted by connecting web browsers, so they will notify the user that the connection is not secure. To remove the notiﬁcation, you need to install a trusted TLS certiﬁcate (TLS 1.1 or 1.2) on the DGA monitor. However, note that HTTPS trac is always encrypted even if the certiﬁcate is not trusted. Vaisala recommends using encrypted connections (HTTPS).

1. In the user interface, select Settings > Network > Security.

2. Select HTTP to use unencrypted user interface connections, or HTTPS (default) to secure the interface using encryption.

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3. To use your own certiﬁcate with HTTPS connections:

a. Select Upload certiﬁcate.

b. Select Certiﬁcate ﬁle > Browse and locate the certiﬁcate ﬁle.

c. Select Private key ﬁle > Browse and locate the private key ﬁle.

d. Enter the Private key password if your private key requires it.

4. Select Apply to save your changes.

If you change the security settings, the user interface will restart and you have to log in again.

5.6 Setting device name

Figure 28 General settings page

You can give a name to the DGA monitor to help identify it. If the name is set, it is shown in:

• Login page

• Above the Optimus text in the navigation menu

• Names of ﬁles downloaded from the user interface

1. In the user interface, select Settings > General.

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2. Enter a name for the device in the Name ﬁeld. Maximum length is 64 characters. You can use alphanumerical characters, space, hyphen "-", and underscore "_".

3. Select Apply to save the name.

5.7 Setting date and time

CAUTION!

time clock (RTC) is stopped to allow for storage without draining the RTC backup battery. Set date and time when starting the commissioning.

Figure 29 Date and time settings page

DGA monitor uses UTC (Coordinated Universal Time) internally. Time and time stamps in the user interface are shown according to the time zone of the connecting web browser.

When the DGA monitor is shipped from the Vaisala factory, its real-

1. In the user interface, select Settings > General.

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2. To set date and time manually:

a. Select Set time manually.

b. Select or enter the current date in the Date ﬁeld. The format is yyyy-mm-dd.

c. Enter the current time in the Time ﬁeld. The ﬁeld is in 24-hour clock notation in

format hh:mm.

d. Select Apply to save the manually set time.

3. To set up time synchronization with a Network Time Protocol (NTP) server:

NTP synchronization requires that the network connection is conﬁgured and the IP address of the NTP server is reachable.

a. Select

b. Enter the IP address of the NTP server in the NTP server ﬁeld.

c. Select Apply to start time synchronization. Status of time synchronization is shown

d. Wait for the message Time successfully synchronized to appear.

4. To set up time synchronization using DNP3 protocol:

a. Enable and conﬁgure the DN3 protocol. See Conﬁguring DNP3 protocol (page 66).

b. Select Use DNP3.

c. Select Apply to start time synchronization.

5.8

Initializing DGA monitor

Before starting the initialization, make sure that:

• DGA monitor is fully installed and wired.

• All oil connections are completed.

• DGA monitor is turned on.

• You are connected to the user interface with a web browser.

Use NTP.

below the NTP server ﬁeld. If the status shows Connecting... and does not progress to Synchronizing time... even after waiting for a minute, verify that the network connection is working and conﬁgured, and the IP address of the NTP server is correctly entered.

• 5-mm Allen key

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You must have physical access to the DGA monitor cabinet and the oil valves on the transformer. Do not try to perform the initialization remotely. You can stop the initialization sequence at most phases by selecting Control > Cancel.

While waiting between the initialization steps, you can navigate away from the Control page and access the other pages (for example, to perform system conﬁguration tasks). Remember to come back to the Control page to complete the initialization.

1. In the user interface, select Control.

2. Read the instructions on screen and verify that DGA monitor is waiting to be initialized.

3. Select Start to start the initialization sequence.

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4. Turn the gray knob on the side of the bleed valve 90° counterclockwise to open the manual override lock. The knob pops outward when the lock is open. Select OK when done.

The initialization sequence performs a test to verify that the manual lock on the bleed valve is now open. In rare cases, it is possible for the test to fail even if the lock has been opened. If the test fails, you can choose to skip the test and proceed with the initialization. Skip the test only if you are certain the lock is open.

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5. Remove the bleed plug from the bleed valve using the 5-mm Allen key. It does not take many rotations to remove so be careful not to drop it. Select OK when done.

6. Open the oil intake and return valves on the transformer and select OK .

7. Wait for the DGA monitor to ﬁll with oil. Oil pressure from the transformer is used in the beginning of the ﬁlling, and assisted using the oil pump of the DGA monitor in the later stage. Typical duration of this step is 30 ... 60 minutes, depending on oil pressure, viscosity, temperature, and length of the oil lines.

8. When instructed to do so, reattach the bleed plug to the bleed valve. Select Continue when done.

9. When the user interface informs that the initialization is complete, select OK. DGA monitor is now in standby, waiting for you to start the measurement.

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5.9 Conﬁguring autocalibration

Figure 30 Autocalibration page

Starting with software version 1.11.0, the DGA monitor performs autocalibration when needed and when environmental conditions are suitable. Vaisala recommends leaving this feature enabled, but Admin user can disable it from the Autocalibration page.

Even if the automatically started autocalibration is disabled, the initial autocalibration will still run after the DGA monitor has been initialized. Autocalibration can also be manually started.

1. In the user interface, select Control > Autocalibration.

2. Conﬁgure the setting using the switch on the page:

• If you want to disable automatically started autocalibration, move the switch to the

left.

• If you want DGA monitor to start autocalibration when it determines it is necessary,

set the switch to position Start automatically.

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5.10 Conﬁguring Modbus protocol

Figure 31 Modbus settings page

1. In the user interface, select Settings > Network > Modbus.

2. Select the connection type(s) for which Modbus protocol should be enabled. You can select TCP (Ethernet), RTU (serial line), or both.

3. If you enabled Modbus RTU, conﬁgure the serial connection:

a. Select Baud rate for the connection. Available options are:

• 4800

• 9600

• 19200

• 38400

• 57600

• 115200

b. Select Transmission mode, 8E1 or 8N2.

c. Enter the Modbus Slave ID for the DGA monitor. Range 1 ... 247.

4. Click Apply to save your changes.

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5.11 Conﬁguring DNP3 protocol

Figure 32 DNP3 settings page

DNP3 protocol is an optional feature and requires a license. If a license is not installed on the DGA monitor, you cannot enable the protocol. Contact Vaisala for acquiring the license.

1. In the user interface, select Settings > Network > DNP3.

2. Select if the DNP3 protocol should be Enabled or Disabled.

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3. If you enabled the DNP3 protocol, conﬁgure the following settings:

Connection type

Interface where DNP3 protocol will be available.

Slave link address

Address of this DGA monitor.

Master link address

Address of the DNP3 master.

Default analog input variation

Data format variation for analog input values. Variations 1 … 6 are available.

4. If you selected Serial port as the connection type, conﬁgure the following settings:

Baud rate

Baud rate of the serial connection. Available options are 4800, 9600, 19200, 38400, 57600, and 115200.

Transmission mode

Number of data bits, parity, and number of stop bits used in serial communication. Available options are 8E1 and 8N2.

5. Set the classes used for the Gas alarm, Gas caution, and Device status events.

6. Select Apply to save your changes.

Select Download to download the DGA monitor device proﬁle in XML format. It is needed to conﬁgure your DNP3 master system.

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5.12 Conﬁguring IEC 61850 protocol

Figure 33 IEC 61850 settings page

IEC 61850 protocol is an optional feature and requires a license. If a license is not installed on the DGA monitor, you cannot enable the protocol. Contact Vaisala for acquiring the license.

1. In the user interface, select Settings > Network > IEC 61850.

2. Select if the IEC 61850 protocol should be Enabled or Disabled.

3. Select Apply to save your changes.

You can download the following supporting documents from this page:

• IED Capability Description (ICD) ﬁle

• Protocol Implementation Conformance Statement (PICS)

• Model Implementation Conformance Statement (MICS)

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5.13 Using protocol test mode

Figure 34 Protocol test mode enabled

Chapter 5 – Commissioning

1. In the user interface, select Settings > Network > Protocol Test Mode.

2. Check the status of the protocols listed under Protocols. Make sure the protocols you want are enabled. If they are not, you must enable and conﬁgure them ﬁrst before continuing this procedure.

3. Select Start to enable the protocol test mode and open the protocol test mode page.

The page is preconﬁgured with arbitrary default values for measurement parameters. The values are all dierent to make it easy to verify on the SCADA side that the correct parameter is being read and displayed. Scroll the page to reveal all of the ﬁelds.

4. To set your own test data:

a. Edit the values of the ﬁelds as required.

b. Check the checkboxes to enable the desired caution and warning level alerts.

c. Select Update at the bottom of the page to take the new test data into use.

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5. The test mode will end automatically after one hour. You can select a longer timeout from the drop-down menu marked Test mode timeout in. Select Update to take the new timeout into use.

6. You can now start testing by reading information from the DGA monitor from the SCADA system side.

7. When you are done testing, select Close to end the test mode immediately or wait until the end of the timeout.

5.14 Conﬁguring gas level alerts

Figure 35 Alert limits settings page

You can conﬁgure gas level alerts on the Alert limits settings page. There are separate rows for each individual gas level alert that you can conﬁgure. Alerts for rate of change (ROC) values are available on their own tabs. By default, all gas level alerts are o.

For more information on how alerts are activated and indicated, see OPT100 User Guide (M211858EN).

1. In the user interface, select Settings > Alert limits.

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2. For each alert you want to conﬁgure: a. Change to the appropriate tab that shows the alert you want to conﬁgure. b. Enter the Caution Limit in ppm. This is the limit that triggers a gas alert with caution

severity.

c. Enter the Alarm Limit. Alarm limit should be higher than the caution limit, except

when conﬁguring a minimum limit alert for total gas pressure (TGP).

d. If the alert is for the total gas pressure (TGP) value, select if you want the limit value

to be a maximum limit (alert active when value is above the limit) or a minimum limit (alert active when value is below the limit).

e. Set the alert to On to enable it.

It is possible to have only caution or alarm severity active. If you leave a limit value empty or enter a zero, the corresponding severity will not be active for that gas level alert.

3. Select Apply to take the new alert limit settings into use.

Changing gas alert settings will not immediately activate any new alerts. Gas alert status is updated only when the next measurement cycle results set is ready.

5.15 Conﬁguring unit settings

Figure 36 Unit settings page

1. In the user interface, select Settings > Units.

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2. Select the preferred unit to use for total gas pressure (hPa psi). This selection only aects the viewing of the user interface and the downloading of data from the Latest values page.

3. Select Apply to save the selection.

5.16 Conﬁguring relays

Figure 37 Relay settings page

1. In the user interface, select Settings > Relays.

2. Each of the three relays is conﬁgured individually. For each relay:

a. Select relay Mode:

• In Normal mode, the relay is activated by the selected Trigger.

• In Test mode, the relay activation is controlled manually from the Set test state buttons.

If the relay is not used, select the Test mode. You can also use it to test that wiring has been connected correctly.

b. Select relay Trigger:

• Gas Caution activates the relay if any gas level alert of caution severity is active.

• Gas Alarm activates the relay if any gas level alert of alarm severity is active.

• Device Error activates the relay if a device error is active.

Settings are applied immediately.

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5.17 Starting measurement

In normal operation DGA monitor repeats the measurement cycle continuously. You can only start the measurement if DGA monitor is currently in standby.

1. Start measurement from Control > Start Measuring.

Since this is the ﬁrst time measurement is started after initialization, the DGA monitor will perform autocalibration. Autocalibration improves measurement performance by adapting the DGA monitor to transformer oil conditions. After autocalibration, DGA monitor continues to measure normally. Autocalibration takes from 2 to 5 days depending on conditions. Measurements performed during autocalibration do not meet the accuracy and repeatability speciﬁcations and they should not be used for transformer diagnostics.

2. Wait for the ﬁrst measurement cycle to complete. Depending on the starting conditions, it may take up to 90 minutes. Verify that there are no oil leaks in the oil pipes or inside DGA monitor.

5.18

Finalizing installation

1. If you have connected DGA monitor to a host system using Ethernet or RS-485 connections, verify the availability of measurement data from the host system.

2. Verify that you have performed all installation steps according to the DGA monitor

conﬁguration report (page 76).

3. Before leaving the installation site, perform a safety check and lock up according to the

Post-installation checklist (page 78).

Keep the doors closed and locked when not actively working inside the enclosures or accessing the service port locally. Keeping the DGA monitor door closed when performing measurement is also important for temperature management of measurement components.

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6. Installation report

6.1 Site and device information

Site information

Company

Contact information

Substation name and address

Date(s) of visit

Transformer ID

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Site information

Scope of work

Device information

DGA monitor model

DGA monitor serial number

Mounting type

Chapter 6 – Installation report

Oil line type and size

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Device information

Oil inlet valve location

Oil return valve location

Other information

6.2 DGA monitor conﬁguration report

Table 11 Wiring

Item Yes No Comment

DC power cable installed between DGA monitor and power supply unit

Relay control cable installed between DGA monitor and power supply unit

Devices connected to relays in power supply unit

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Item Yes No Comment

RS-485 cable connected

Ethernet cable connected

Table 12 Conﬁguration

Item Yes No Comment

Date and time set

Admin password changed

Device name conﬁgured

Ethernet connection conﬁgured

Chapter 6 – Installation report

User interface security conﬁgured

Autocalibration conﬁgured

IEC 61850 protocol conﬁgured and enabled

DNP3 protocol conﬁgured and enabled

Modbus protocol conﬁgured and enabled

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Item Yes No Comment

Unit settings conﬁgured

Relays conﬁgured and enabled

Gas level alerts conﬁgured and enabled

6.3 Post-installation checklist

Verify items in this checklist after you have completed all installation steps.

Table 13 Post-installation checklist

Item Yes No Comment

Mechanical installation stable and secure

DGA monitor is installed vertically and not tilted more than 5 degrees

Mains power connection and protective grounding veriﬁed

All unused cable glands blocked and cable glands tightened

Operation of relays tested

Oil pipe connections checked for leaks

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Item Yes No Comment

Initialization completed successfully

DGA monitor powered on and in measurement mode (not standby)

No errors active in user interface

Status LED on DGA monitor door is green

Bleed plug in place on the bleed valve

Connection to DGA monitor veriﬁed from SCADA system

DGA monitor cabinet closed and locked with all three locks

Chapter 6 – Installation report

Power supply unit cabinet closed and locked

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Index

autocalibration....................................................... 64

cable glands.............................................................52

calibration.....................................................................

conﬁguration report..............................................76

date and time..........................................................59

device name............................................................ 58

dimensions.........................................................21, 26

DNP3 protocol

conﬁguring............................................................66

gas level alerts

conﬁguring............................................................70

grounding.................................................................36

IEC 61850 protocol

conﬁguring............................................................68

installation

accessories.............................................................. 11

location....................................................................12

oil lines....................................................................28

personnel..................................................................8

phases....................................................................... 8

required materials..................................................9

site............................................................................. 11

tools...........................................................................11

installation report...................................................74

maintenance.................................................................

measurement

starting....................................................................73

Modbus protocol....................................................65

mounting

Ground Mounting Set..........................................16

Power Supply Unit................................................31

Weather Shield......................................................31

network......................................................................14

parts

cable glands................................................... 33, 34

connectors......................................................33, 34

ground mounting set...........................................19

interior.................................................................... 35

wall mounting set................................................ 24

password..................................................................55

post-installation checklist....................................78

protocol test mode................................................69

regulatory compliances........................................ 14

reinstalling................................................................. 11

relays..........................................................................72

RS-485...................................................................... 45

safety........................................................................... 7

serial line........................................................... 45, 65

starting measurement...........................................73

total gas pressure....................................................71

transporting...............................................................11

units............................................................................ 71

unpacking................................................................. 16

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Maintenance and calibration services

Vaisala oers comprehensive customer care throughout the life cycle of our measurement instruments and systems. Our factory services are provided worldwide with fast deliveries. For more information, see www.vaisala.com/

calibration.

• Vaisala Online Store at store.vaisala.com is available for most countries. You can browse the oering by product model and order the right accessories, spare parts, or maintenance and calibration services.

• To contact your local maintenance and calibration expert, see

www.vaisala.com/contactus.

Technical support

Contact Vaisala technical support at helpdesk@vaisala.com. Provide at least the following supporting information as applicable:

• Product name, model, and serial number

• Software/Firmware version

• Name and location of the installation site

• Name and contact information of a technical person who can provide further information on the problem

For more information, see www.vaisala.com/support.

Warranty

For standard warranty terms and conditions, see www.vaisala.com/warranty. Please observe that any such warranty may not be valid in case of damage due to normal wear and tear, exceptional operating conditions, negligent handling or installation, or unauthorized modiﬁcations. Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product.

Recycling

Recycle all applicable material.

Follow the statutory regulations for disposing of the product and packaging.

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www.vaisala.com